subject stringclasses 4
values | grade stringclasses 15
values | skill stringclasses 445
values | pic_choice bool 2
classes | pic_prob bool 2
classes | problem stringlengths 0 1.12k | problem_pic unknown | choices listlengths 2 4 ⌀ | choices_pic listlengths 2 4 ⌀ | answer_idx int64 0 3 |
|---|---|---|---|---|---|---|---|---|---|
math | grade-4 | interpret-stem-and-leaf-plots | false | true | Dayton Flooring tracked the number of broken tiles in each shipment it received last year. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD+CAYAAAAAuXIHAAA47klEQVR4nO3deVhV5d7/8fcGZEYGTRQQZyEHjMKp1OOAOZGzaaVpIlJK+ZiaplZqHqcyS03MciqPw2OZOaWoqdlg5uk4lKZIWA6gWII4lAzr90c/9nEHKOlmb5/t53VdXNf2Xuu77+9a7D8+Lu69lskwDAMREREREbEKJ3s3ICIiIiLiSBSwRURERESsSAFbRERERMSKnObOnYvJZLL4cXZ2Jjg4mI4dO/L5559bdcKqVatiMplYu3atVd/3dixZsgSTycR9990HwIk... | [
"8",
"9",
"10",
"7"
] | null | 3 |
math | pre-k | select-solid-shapes | true | false | Which shape is a cone? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAUrUlEQVR4nO2dT2wbZ3qHf7Ipk3QlkpUEkbbkkFrApDcBJAGWo/RQOfHBPhS2b/Fhs26BBNndw263h6anzWHdS9JDt6eku0iAOt5DcqpkLBC5QDZSC8SyHEAU4NiUihUZyw7pFQVSdEzKlMseXn75hhSlcP5yhnwfQBhySM6MZh6+fL8/831dlUqlkn4K/O8ToPAM2KmAYWyHqwvoPQgcPwwEDwFd6e1K5dZWqw+LYZpn0ge4Vp/QkyOHgNhfkNUMYzcKz4DEt8A... | 1 |
math | grade-7 | transversals-of-parallel-lines-name-angle-pairs | false | true | \line{DF} and \line{GI} are parallel lines. Which angles are supplementary angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADSCAYAAABw17dKAAAgGUlEQVR4nO3df2yV9f3+8eucnnFgFVuHsRYd5UexSGE9Bel63NhpKyJdsJRkZloyWuJ0y4B4qpv7pRQxcdknmT0Iy5K5paebYAybp3aYViyjjYslwGmLtCqh1HMc2qFiT2XdOLHt+f7hl0ZGyw97n96n5zwfyf0HfZf7dQk98eLOfb9vSyQSiQgAAACAIaxmBwAAAADiCQUbAAAAMBAFGwAAADAQBRsAAAAwEAUbcS8Siej555/XypUrdeONN2ratGmaP3++Hn30UYV... | [
"\\angle{IHE} and \\angle{FEC}",
"\\angle{IHE} and \\angle{GHJ}",
"\\angle{IHE} and \\angle{DEH}",
"\\angle{IHE} and \\angle{IHJ}"
] | null | 3 |
engineer | grade-6 | evaluate-tests-of-engineering-design-solutions | false | true | Which of the following could Jared's test show? Jared was a mechanical engineer who was designing a weather station to record temperature, precipitation, and wind speed. The weather station would be used in a town where the highest recorded temperature was 40°C. Jared wanted to make sure the weather station would work ... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAE3CAYAAADBi3hdAAEAAElEQVR4nOz9aZBl6Xnfif3e5Wx3v7lXZe1LV+8L0GgADYAgAXGRRIrDGEnkKCTZsmPCCivG9swXR9hjSw5PKMYex0w4bM9oREnWB3ssiRQ1IgkCIBYCILE20PtS1dW1V1blfvd7z/a+rz+ck1lZ1d1VDWQXqro7/xEVN29lnv2c5zzL//k/4h/8g3/g2MMe9rCHDxD+6//6v74n29UAf778S7taiRW3/71zt7fJQtxhBbvEndZ/pzfGHZff5fHd7eO/E4RQu1x+t+f... | [
"how well the weather station would work when it was windy",
"if the weather station would work when the temperature was 50°C"
] | null | 1 |
math | grade-1 | addition-sentences-up-to-10-which-model-matches | true | false | Which shows 3+3=6? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAABKCAYAAACiqlhpAAALm0lEQVR4nO2dTWwc1QHHf28+9nu9SRwnTmyUOAkp5qNIUdvACagSOFRckCJxgFt7oRVST71x6AEh9dRWrdT2yAHRI4hKUFBUbqUUpBCgNAEnOHFjO3Zi787OzM7H62HsxHYce8feN7Mm7yetVuuZ9/H3zH/e9xshpZTXOnCxDc0IQolGo1GEJaBuwv0V2F8Acc2X8qPFvLOl0dx7nBwA60I7+XGgAN+rJu7UaDRqaEbwlQP/68B/22AshskBbT6NRj11M/EaQCs... | 1 |
math | grade-6 | identify-equivalent-expressions-using-strip-models | false | true | This model represents the expression x+x+1+1. Which expression is equivalent to x+x+1+1? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAA+CAYAAAARUWyzAAAGr0lEQVR4nO3dz2/b9R3H8Ze/tmOnjuMmadrECS0NaquIkvQHuTDGKBSBRHcAOjF+SogDt21/wFjHYOMABwYHTlvpge4whgRIoGmgrmlBoiGooYyulCYiaUt+4MS14yT+9f1yiJYi0pI0/Wgff93n4/T125eX3vkeXvn4KzvgeZ4nSaczI/r9Z3/VR2MnNFXIClipnc2d+mD3SwuvV//tbnthULXSD/1z4Zp7bPm+v7c73/+N+idOWkxTuRpq4vpJS7f+0PWkOuJJ23E... | [
"3x+1",
"2x+3",
"2x+2",
"4x"
] | null | 2 |
math | grade-2 | find-the-next-shape-in-a-repeating-pattern | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADhCAYAAAC9ZMGZAAAVYElEQVR4nO3dW4xd130f4P/e5zJnOEMOTcKURIlUJVmxa0lwirqNG0n1S5rUidGHAoYKoS8NEtdxA7RAAiho7QSu3NoxHMAImhqN+1CgbQykSAwUdqIEfrGl2gXSBzu2bCWyUpmUWIoKSQ3J4cy57j6Meb/N5Zy999nr+wABgjR7r/Vb6+joN4t7zmRFURQBAAA0Ql71BAAAgOlR8AEAoEEUfAAAaBAFHwAAGkTBBwCABlHwAQCgQRR8AABoEAUfAAAaRMEHAIAGUfA... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAADhCAYAAAAJS2C/AAAaKElEQVR4nO3dbYxcV33H8d+5c+dhH2dZi3W8ydp1jHlIbCWItFCcwBtamgf1RSUUZPGmVQtJiNRKICUCAqIBAhFICBXSQl9UKiUSFSChpIQKIRGbBAESCYmTFBNwbGex1/Hau/Z4d+Y+9cWw9tq79s7DfZp7vh8pkr2ee875nzPZmd89d+6YKIoiAQAAACgEY0zWQ8glJ+sBAAAAAEDSCD4AAAAACo/gAwAAAKDwCD4AAAAACo/gAwAAAKDwCD4AAAAACo/gAwA... | 1 |
math | grade-7 | mean-median-mode-and-range-find-the-missing-number | false | true | Liam has the following data: If the mode is 2, which number could s be? | "iVBORw0KGgoAAAANSUhEUgAAAIkAAAAkCAYAAAC9phn5AAAEU0lEQVR4nO3ce2xTVQDH8e990K7bYE0qG5RHNslgRBlKMMAGuKFsiVEWHvJwibyckeACBhHFGeEPRMwUEWOIQQkgxBmdmGk0yGQSgTFRNx6yQFhpGG6rMPcAuna3vf6xZAGHq8q9tivn81/PvTm/88cvp6e3TSVd13UAf1DjemcHAT2IjnCnkgBFkontF4NFVrvGdF3Xr2k+vJovvKsTIk6saiVWtaL6A5ooiHBL1zUfqqQgewP+cK9FiGDegB9ZCwbCvQ4hgmnBALI... | [
"7",
"2"
] | null | 1 |
math | grade-2 | how-much-more-to-make-a-dollar | true | true | You have these coins: Which coins do you need to make a dollar? | "iVBORw0KGgoAAAANSUhEUgAAAUEAAACMCAYAAADiDxvvAABjr0lEQVR4nO39d5Rd133ge35PvOfmUDkXUAEo5JwDM0WJFC1KVqCSNd2Oz2NZfm+e3Wvsfj3zPO3XM2919+s3Xu/JlpUcZEkUM8UEIhAkciGHKlRE5bpVdXM4+cwfF4SlabVNShQJCPezFtbiAsCquzd+51d7n733bwue53lUVVVV3aXED/sDVFVVVX2YqkmwqqrqrlZNglVVVXe1ahKsqqq6q1WTYFVV1V1N/rA/wN3M8zzeWZw3DIP5uVlSqRQeYBoGsViUpqZmgqE... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5kAAACMCAYAAAD2pW2TAADekUlEQVR4nOzdd3ydd3nw/889zz5HR3tLlmTZ8pa3Hduxnb0ISYCQQRhhl02fUvqjfWhJS1seWto+Dy07oRASyHa2V+wk3ntK1rK2dCSdve/1++PIgrQpJOAkQO7368VLxLJ0zn35q6Nz3d/re12CZVkWNpvN9jYlCMJb/RRsNpvNZrPZ/qiIb/UTsNlsNpvNZrPZbDbbHw87ybTZbDabzWaz2Ww220VjJ5k2m81ms9lsNpvNZrto7CTTZrPZbDabzWaz2WwXjZ1... | 0 |
math | grade-1 | simple-fractions-what-fraction-does-the-shape-show | false | true | What fraction of the shape is green? | "iVBORw0KGgoAAAANSUhEUgAAAU8AAABkCAYAAAAG0bKzAAATa0lEQVR4nO3deXhU1f3H8fedmcyWjaxkIQzIIgRCUiAUVHhKoIptMRAqbW0RiyhWi+2vWrX6s60Ua22lVq0KQZCtZSkkQRFBNhUoyC4JAYGwBMhKQiB7MjO3f0xm2LJnQhLyfT0P/9y599xD/vg8Z858zzmKqqoqQgghmkTT1h0QQoiOSMJTCCGaQcJTCCGaQcJTCCGaQcJTCCGaQcJTCCGaQcJTCCGaQcJTCCGaQcJTCCGaQcKzic4WZzF9y/8zfOWPyC0vbOvuCCH... | [
"1/2",
"1/3",
"1/4",
"1/5"
] | null | 1 |
math | grade-2 | compare-clocks | false | true | The clocks show three things Johnny did yesterday morning: Which did Johnny do latest? | "iVBORw0KGgoAAAANSUhEUgAAArIAAACiCAYAAAC9MC4yAAA/PElEQVR4nO3de1iUdf7/8eccOQ0MKgooCiq6eQZPmSmeMrXMQ+XaVp5S2/aXJn63g1Zu7uqaHdW1dttNU9vdMg8dtFLTTNFcS1NEyxRURBPwBAMDwpzu3x/E6ChycmBm4P24rrkuuOc+vGeYF/fnnvtzf26VoigKwndZi3BcSMNx8RSOCydQLp3CkX8BivJQigtQigvgSi6o1BAQisovCJVfIPgbUYeEowpribpRK9SNW6Ju1BJ0/p5+RUL4PsmlEN5HclknqaQh62O... | [
"walked the dog",
"fed the cat",
"ate breakfast"
] | null | 2 |
math | pre-k | count-on-ten-frames-up-to-10 | false | true | How many dots are on the frame? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACQCAYAAAAyRxwtAAAIzElEQVR4nO3dX4ildRkH8Od9z5ndzdW1HV1nTDczEBP7Y4nRTZH0R4yC6A/hnWRCmEhgBBF5l0RIN9o/CboQupEKFJSW8KLuWjQMTXLxQlfcNXfHXVxlZ+ac9+1iNWbU3bPnzPOeM7u/z+dudg/P7/lezZd33vO+1WMHV9sAIK5f6M96BQDOAvWsFwAAgLOJgg0AAIkUbAAASPSOGw6vne/NYo+ZeXxpuO5n+eUvifzD0R8CgDG5gg0AAIkUbAAASKRgAwBAIgUbAAA... | [
"6",
"3",
"8",
"4"
] | null | 1 |
math | grade-5 | nets-of-three-dimensional-figures | true | true | Which figure will this net make? | "iVBORw0KGgoAAAANSUhEUgAAAM0AAADNCAYAAAAbvPRpAAAEs0lEQVR4nO3dsWpbZxzG4aOSqXsC7S3EkyGQNb2JzIZMuiBNgsy5iWQNGDTZt9CCs3dVJ7tJ9QX7RToc6+3zbBYavj/2z5+OfPR5td/v9xPwZL8svQA4Ny+WXgDdVqvV0ks4ie9fkNlpmE1LMNP04yx2Gmb39f3N0ks4yttPFz98baeBkGggJBoIiQZCooGQaCAkGgiJBkKigZBoICQaCIkGQqKBkGggJBoIiQZCooGQaCAkGgiJBkKigZBoICQaCIkGQqKBkGggJBo... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAADNCAYAAAA13ILSAAAQOUlEQVR4nO3df2xV93nH8c+NHcBQQvhhmx8RLBmlrJBQaEyABCooEloKZG00RVWiJQy3XV2tYl67jQ5WkUG0rIKk/7BlsdYpm7ZA/ogE1djElixKAggG8Rg4YJzR8cvGQOKAwcKzc/fH5Zjj2P7i63t+Pvf9kiIrF9v3++Xgj5/nOefek8lms1kBGLRMJhP3EhChu+JeAAAkWWncC4BtVqouGq7iRSWJ0FgJSMnWXpAfKkmE7sBTx+JeQkEW7Jgd9xIQIypJAHA... | 1 |
math | grade-7 | identify-alternate-interior-and-alternate-exterior-angles | false | true | \line{RT} and \line{UW} are parallel lines. Which angles are alternate exterior angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADSCAYAAABw17dKAAAhSElEQVR4nO3df2zU9eHH8denZ6GdyM+OIVfLr1vdtIXDYxsorteOGeeycS2b2ea2npY2c3NSY452ZlM00W+tc6v7hQLqNdmyjY31FmbA2dU2NlYc1UIJm7XFgrRB5npFK1c9jn7/YFxECmjv037ux/ORXKKfD7zfry67+OLN+/P+GCMjIyMCAAAAYIo0qwMAAAAAyYSCDQAAAJiIgg0AAACYiIINAAAAmChuCnYgEFB9ff24z3Py5En99re/1apVqzRnzhxNnjxZixY... | [
"\\angle{UVX} and \\angle{TSV}",
"\\angle{UVX} and \\angle{RSV}",
"\\angle{UVX} and \\angle{TSQ}",
"\\angle{UVX} and \\angle{RSQ}"
] | null | 2 |
math | grade-2 | identify-the-fraction | false | true | What fraction of the shape is green? | "iVBORw0KGgoAAAANSUhEUgAAAQ0AAABkCAYAAACcnmUuAAAnCElEQVR4nO2dd3xVVbbHv+e23JteSUISIAQCCb0YegdBkKI0FezzdNSxwPicor43Oop1fPZBxAooiIAohBp6D6EGAgkhIYX03m5yy3l/3EJC2s3NTQjO+X4+Kp6zz97r+PH87t5rr72WIIqiyG1OXk0R+bpiMrW5uMldcFe4UC3q6K4Jwl3hcqvNk5D4XaG41QbYQnJJOolFKVwpSSOnMp/MihyyqwooqCqitKacsuqKOu3VCjWeGne8nN0JdvdniE9fhvr0pbdXN7y... | [
"6/10",
"8/10",
"5/11",
"5/10"
] | null | 2 |
math | pre-k | different | true | false | Which is different? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAAFiklEQVR4nO3cS2xUVRzH8e85987Yx7QVoS0NWDVq0UiMAZOKETeocaVLXRjxEdlpws4NMZqgrkzcqBhcoAmJG1YuJSYaF7BBk0bCIwgi6QMKYfqeufceFwMGRNspzsy5Z/7/z4qmZc4v850pw0w7xjnnJipweh5mUkgcqo3EBnoieLALBotgJpacO1r2PUu1wmgvxKfmax8MFWFTd+3WoNrHTAon5mC8AifnwZaT2ic0dnvqiWptAWZTsOkNn1Dt6XrbqgPrd4p... | 1 |
math | kindergarten | match-analog-clocks-and-times | false | true | Which clock shows 1:00? | "iVBORw0KGgoAAAANSUhEUgAAAvUAAAEJCAYAAAAU+thyAABWcklEQVR4nO3dd1gUV9sG8HvpbZGOFAGxgr0gVrBhxRKx9xJbrCka81kSNdWSRJO8sZdYE0vsDXvHAthAjQooRUQpi1SF+f5AVtYtLJ2F+3ddXrpzZuY8s/DIw9kzZ0SCIAggIiIiIiKNpVXWARARERERUdGwqCciIiIi0nAs6omIiIiINByLeiIiIiIiDceinoiIiIhIw7GoJyIiIiLScCzqiYiIiIg0HIt6IiIiIiINx6KeiIiIiEjDsagnIiIiItJwLOqJiIiIiDQ... | [
"Created with Snap",
"Created with Snap"
] | null | 0 |
science | grade-7 | identify-how-particle-motion-affects-temperature-and-pressure | false | true | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAAB+y0lEQVR4nO3deXxTVd4/8M/N1jRN2tJ9AUopTZCt0JTNjYKDGy24oRJc5vk5tDqj40J19HGhis/ojKA+g6O2+IyKWlwYF4roiEpxYzEFympatpaS0kLXdE2TnN8fJZem+5KtN9/3S2xz780554b2y/fes1yOMcbgw6qrz+PUqVK0tbWC4zhPN4cQAIBUKkVERCTGjh3r6aYQAaP4R7wRxb+eSTzdAE+y2WyoqKgAYzbIZDJPN4cQB9XV5xEdHQ2pVOrpphABovhHvBn... | [
"sample B",
"neither; the samples have the same temperature",
"sample A"
] | null | 1 |
science | grade-3 | identify-plants-and-animals | true | false | Select the plant. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAAEAAElEQVR4nOz9d5RlW37XCX62OedcHz4yIn3mS/dePu/LvDIyVVJVgRxCwg5000zT3TANsxpmMSMaeoZBBjQ0rhsjDagR0AhBqVSqkqoklTfP28x8L72LDB9x/b3nnG3mj33ujYh8WVDo/dOzls5asSLi3mP22fu7f/v7s1u82PL+dBXqit8/fv/4P+TRsfBOD5YzmNLwwcnwufx94P7+8X/0o67gdDX83bU7n8vfB+7vH///cIxwmvudz/S9Tnzk579NScQIBUN... | 2 |
math | grade-3 | interpret-line-graphs | false | true | Worried about going over his storage limit, Brett monitored the number of undeleted voicemail messages stored on his phone each day. On which day did Brett have exactly 7 voicemail messages? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAGFCAYAAADHK4SxAACHvElEQVR4nOzdd3ib9bn/8bcky7K8995xbCeOkziJkzh7D0LIZENLW/hBx6FQTksP53TQQWl7GAVKKXCAQlPaAAnZCcHZO3aWR2LHe+8pD8kavz9yrBMTJziJbHncr+vKdcWPpEe3JVv+PN/n+3xvhcVisSCEEEIIIYSwCaW9CxBCCCGEEGI4cbB3AcNJQUEBv//97wH45S9/SVBQUI/b9+zZw6ZNm/D09OTFF19EoVDccH/19fU899xzALzyyis4Ozv3T+E29sEHH3D... | [
"Monday",
"Sunday",
"Tuesday",
"Saturday"
] | null | 0 |
science | grade-8 | use-punnett-squares-to-calculate-ratios-of-offspring-types | false | true | In a group of dogs, some individuals have short fur and others have long fur. In this group, the gene for the fur length trait has two alleles. The allele for long fur (f) is recessive to the allele for short fur (F). This Punnett square shows a cross between two dogs. What is the expected ratio of offspring with long ... | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD6CAYAAADUdTPBAAAMU0lEQVR4nO3dT2yc9ZnA8Wf8j3GcxPY2cdKtrMUrHFaim0LjCKkphIStQNBKVaStSmRx6ApVckHk3IqqaqOo4kA5lAvKpSqwCIlWbqVV2SqpWMkilQblwBa0B7RVWGCdJpusmwwOsfP2kHSC5QB2PJ538vjzOY1fvzN+9L6Xr3/zzjuVoiiKAAAAUugoewAAAKB5BD4AACQi8AEAIBGBDwAAiQh8AABIROADAEAiAh8AABIR+AAAkEhX2QPAjerSpUsxOTkZR48ejVO... | [
"2:2",
"1:3",
"0:4",
"4:0"
] | null | 1 |
math | kindergarten | subtraction-sentences-up-to-5-which-model-matches | true | false |
Which picture shows 4 − 2 = 2? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAABKCAYAAACiqlhpAAAMtElEQVR4nO2da1Bc12HHf3cf7PLSIhY9jcRDYAlkGUm1sElcPfwIQnFiOlI7StwHH6pOp1Zjfci3pJLtzqTtpBnRTGZSO19IO3bTVCSOpdayYivURgarkiVkJIJ4CWvBPJfHLrC7sLv9sF5Aq4W7d3dh5cP5fTt7zzn3/NH/r3vuuS/F7/f7+zzQPgkOL8z4kUgkS4RBgXQ9FKbAuiRQ+tx+/+XxRA9LIll5PL4KDG2TgcKGJNiaGkinRCJZGhxeaJ2Azz1wexJ... | 0 |
math | algebra-2 | solve-a-triangle | false | true | In solving this triangle, which law must you use first? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAGPCAYAAABmsKfXAAA9FElEQVR4nO3de3DU52H2/eu30q52pRWwqk4cJGFkkbFksAVvmtrwNglTtR3Xrd2apBPLBveBOoGYUcwIyKGucd9JWiRFCSGRWgdcc3KmGWZqJg5P52FCp4kxdhK0RiB4iixiSUYIoSJjLdqVhHbfP5DESYCEVnvv4fuZYSbWT9JeTGbiazZ735cVCoVCAgAAABAWNtMBAAAAgHhCwQYAAADCaLRgv//++7IsSz/60Y9u+83l5eXKzMxUT09PRMIBAAAAsSZ55D/cd99... | [
"Law of Cosines",
"Law of Sines"
] | null | 1 |
math | grade-3 | match-clocks-and-times | false | true | What time does the clock show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAIqUlEQVR4nO3dvXNTVxoH4FeZUBGkCTOZ2d3Bw6RcpDZko20ymSRjGgpspIoiBKfFTGgXVk5rwJ5JZwJbRsamxftRO/+AxC61qJICrlOEQEBbsIBhg5Gujyxy/TzdnTkf75Wbn8+8c0+p3+/3AwAASOKNcRcAAABFImADAEBCAjYAACQkYAMAQEICNgAAJCRgAwBAQm8OOvD+raMRD++OsBR2o9Lew7Hn4Py4ywAASMYJNgAAJCRgAwBAQgI2AAAkJGADAEBCAjYAACQ... | [
"six o'clock",
"six thirty",
"five thirty"
] | null | 1 |
math | grade-5 | interpret-bar-graphs | true | true | A teacher randomly drew names from a hat to assign her students to field day committees. Which bar graph shows the same data? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACeCAYAAAAITX1dAAA1M0lEQVR4nO3dd3RUZf7H8fekt0nvJEBQYOlNg4AgVRRxFQRWiqiAK4p9QYTFwrIRDkVUbOyi/LAh2CiCNHFBaSu6gNKUEkIC6XUmZTLJ/P4YGRlCCwwEwud1DoeTe59753tn5o/PPPO9zxjWxG22ISIXpdfRDjVdgoiIiFwh3Gq6ABERERGR2kQBW0RERETEhRSwRURERERcSAFbRERERMSFFLBFRERERFxIAVtERERExIUUsEVEREREXEgBW0RERETEhRSwRURERER... | null | [
"iVBORw0KGgoAAAANSUhEUgAABRQAAAFsCAYAAAC92DVXAACMQElEQVR4nOzdeVxVdf7H8dflwmVfBUFU3DVxwaXcFZfUyiwxbTVzWiadbJmZVqemaUrrV2lNadM6lVNTamFqWaaWmJqUG67lBqIogqyyXu7y+4O4eQUFFbkg7+fjMWN8z/ec+znco4/Lm+9iAOyIiIiIiEitsNvtpJthfxGctIJFn7ZFRESkgXM3gL8ROvhAuAkMKFAUEREREak16aV2fsp3dRUiIiIiF0ffAHB3dREiIiIiIpeSfUXlfzYzQSff8t/mi4iIiDR... | 0 |
math | pre-k | represent-numbers-with-shapes-up-to-5 | true | false | Which group has 5 stars? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAJ6UlEQVR4nO3dPWxT5xrA8ScGY3A+gdQJQgmRqnuvMhepUzMzlzkzrGUOK9mQurVz5+6dGSuYaW/vQiVEb5N+QIKD68S5Q+TegJyQj+PH5Pj3m4ii2EeK+et94vO+Htnd3d395a+I/zQjNnYitncDoBDnRyLGz0X8ox4xcyFi5JfW7u73rwZ9WUDZfToRcf6n5t4X1y5E/Gt0r0YARdjYifjxdcSLvyL+3YyovNre+4bYAEUbP7fXloiIzZ2Iys6+bwAUrduW9m5... | 1 |
math | grade-8 | apply-addition-and-subtraction-rules | false | true | The number line shows two unknown numbers, q and r. Is q+r positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAIcklEQVR4nO3da0xU+R3G8efM5TAMuEDFCzZQTNfthtX1hgiu2WXTV43FFmNjTVprpDHVmE0vL2ybmjaRuvVF3zS61dTdJqa6Jl2xwcS2L5oVTQ0XUVmJ6LopKOuuiqzuOsAMczl9wcwAykXtMGemfD8vzMw5kDzJnMgz//M75xiWZVkCgDRy9OhRGYahjRs32h0FScJnDiCduOwOAABPq7u72+4ISDI+cwDp5IkLdjAYVGtrq5qamjR79mxWEcYR6tytyP0zivjaZLh... | [
"negative",
"positive"
] | null | 0 |
math | pre-k | represent-numbers-with-shapes-up-to-5 | true | false | Which group has 4 circles? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAALsUlEQVR4nO3d22/T9R/H8de369qOdZy28AMRDCcPOLkBwlAghqBwY0I0DBMPmHiFIfwLxlOMd0ZjQsKVgAo3iBATNAEMoExFY8ggzhnDQbIpGwLd2n172Pd30UyJ/uYPpX1/Pmufj6QZS5d93ynts59+v923QRRFUX9e+jErZUpSMRIAVEQ8kFoapEWTpP8kpKA/jKKvbrgeC0CtWzFZivdmy9/MSkj3NJdrBACVkClJPcNSX176ISvFbhTLVxAbAJXW0lBuiyQ... | 1 |
math | grade-2 | place-value-up-to-thousands | false | true | What is the value of the underlined digit? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAAiCAYAAABlRa5TAAAIxklEQVR4nO3dW0iUQRsH8P+a7a6mplamrpWSsbZYKEoXmZ3sYAV10yJlQXYlWhgFaxEsYSEVHaRzZBFWVBAVEXSijI2KUDO1stSOmnZQM93MrXS+C3HYt/WwW/vx0df/Bwsz78w7s3P38DLzjEoIIUBERERERG7h8b/+A0RERERE/08YYBMRERERuREDbCIiIiIiN2KATURERETkRgywiYiIiIjciAE2EREREZEbMcAmIiIiInIjBthERERERG6kCLDPnDmDBQsWQKf... | [
"4",
"400",
"40"
] | null | 2 |
math | algebra-2 | find-inverse-functions-and-relations | false | true | The graph below shows a function. Is its inverse also a function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AAB3eklEQVR4nO3deXxV5Z0/8M+5e1YSEgghkLAHgSRsISSAYqFqRa2g/lx+U+vUace2dt+sYxc7DrXT1k4d7Vg7HZdOl1+paBUMFAUEE5JAgEDCYgyQBchyk5vkrme55/z+iEmJgOTCebi5yef9evnylUvOJ9+ck3vu9z73ec6RDMMwQEREREREprBEuwAiIiIiopGEDTYRERERkYnYYBMRERERmYgNNhERERGRidhgE9Egf/zjH1FWVjbwtaZpeOKJJxAIBKJYFRERUex... | [
"yes",
"no"
] | null | 0 |
math | kindergarten | cubes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAWM0lEQVR4nO2dTXAU13bH//d2t2Y0GiFpJL4lATHIBa9gKLsq4IXDQ4k3uGwvbN4KyAaXUxWbV7y8bBKTDa7KInE9nu0sYuxFwLvYC+PAikDAC7AXLiRXmbIkPxAaJB5oRiM0n5rue7O40z0aaST00Z8z97fR0GpuH8399+1zT597LuGc80ezwEgOmDEAnUMi8R0qAVoVYFcE2NgEkEdFzr9/6rVZEsnyObAOUIdz4h+bm4DnW4SqJRK/MWMAP2eBiVlgKAfQp7r... | 2 |
math | calculus | find-inverse-functions-and-relations | false | true | The graph below shows a function. Is its inverse also a function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABmmklEQVR4nO39e3Rc5Znnff/qpNLRkizJkrAjGXMwyNgGg01sbA5tAgQSJjZJQ/d06PSku0Om0zl0vz1P3qzurOkMzWSt7iRP0kkmZCYTcnpXppkQOhyEY4LBjh0wFiCwbMAYW5Zs61A6lOq4d1Xt/f4hSrGwjSV73y6V9P3846VS7UuX966661d33bW3z3VdVwAAAAA84S90AwAAAMBsQsAGAAAAPETABgAAADxEwAYw4frrr9ejjz468fOvfvUrXX755XIcp3BNAQB... | [
"yes",
"no"
] | null | 1 |
math | grade-2 | purchases-do-you-have-enough-money-up-to-1-dollar | false | true |
A roll of paper towel costs 58 cents. Do you have enough money to buy it? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADECAYAAADqBVUcAADa7klEQVR4nOzdd3gc1bn48e+Une1a9d5ly7LcK+7GgOkdQk8ISQik3JBCLiSXm0ISyA3pDZIAoSSU0JvBgA0YjCnuvcmWZMvqffvOzPn9sdJiuYCMHSD8zud5/IB2Z2fPnN3Zfefse96jCCEEkiRJkiRJkiR9KqgfdwMkSZIkSZIkSTp2ZIAvSZIkSZIkSZ8ixzzA70kIKhb3MWlpPz0Jmf0jSZIkSZIkSR+lIwrwn2xO8OOt0fcN3F/tMKkP26zttbhqVfioGyhJkiR... | [
"no",
"yes"
] | null | 0 |
math | grade-8 | identify-lines-of-best-fit | true | false | Which graph shows the line of best fit for the data? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAWYAAAFtCAYAAAA04cDVAABRT0lEQVR4nO3de3RT153w/a8kW1fb8t0Ggk1IwcSFEO4YMJcmbmmdEDDNop5kZhj6Zg1ZK28708s7fdK8nZk+k0yfZ71JE0o6E+bJhCakSUMxJBDTTEMCDCQ4XJ0YcCCAsQ0IX3WxbF2t9w9hgbCNDZaOZPv3WSsr6Ojo/Pa2jn7a2mefvVWBQCBg8cBXneDwgy+AEEIIBSWoIFkDk4yQowWVxR0IfGaPdbGEEEIAzEuBhLOdwQdjtFBgCmZtIYQQynH44UsnXPH... | 1 |
math | grade-1 | purchases-do-you-have-enough-money | false | true |
A school mascot pin costs 93 cents. Do you have enough money to buy it?
| "iVBORw0KGgoAAAANSUhEUgAAAvgAAADECAYAAADqBVUcAADufklEQVR4nOydd3gc1fW/35nZrt3VrrTq3bJsyZZ7BRtjG2NsmjEY03snCUlogUAoCYEUQgjhG0gCKSSUhGo6GFOMae69yZZlWVbvq9XWmfv7Y7VryZJtydjg8Jv3efaxPHt35s6ZM3PP3Hvu50pCCIGOjo6Ojo6Ojo6OzncC+duugI6Ojo6Ojo6Ojo7OkUMP8HV0dHR0dHR0dHS+QxzxAL81LCh4r50xH3ppDevZPzo6Ojo6Ojo6OjrfJAMK8F+rCXP/1sBBA/ePGyN... | [
"no",
"yes"
] | null | 1 |
math | grade-3 | compare-area-and-perimeter-of-two-figures | true | false | Which figure has a greater area? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKEAAACgCAYAAABkDQwTAAAHw0lEQVR4nO3dXUhU+xrH8e8as2yf7RFSKy3TyDkhFagFXZi9gBVUWiZRSmVJQV14E94kUXdRVDuiN4joJiqJIioVdl0YRRFBUEjFPlq+VSaWvVimma5zMTRkntq70nnS+X1gGGetNctH5ut/jSLouK7rPvsA1W3Q2gUfXUT61RAHwkPA+xuMGgrOsw7XvfXGeiwJVtP/DUOq2nwPYobCxH/5ChXpT61d8Nc7aPwA/20Dz5uPvh0KUAIlPMTXG8DbLvB0fbZDJFA... | 1 |
math | grade-2 | select-three-dimensional-shapes | true | false | Which shape is a cone? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAQnUlEQVR4nO3dfXAc9X3H8fdvd+9OkiWdZMvWScLYMcOjw2MTnJlig+PadWiAIQXSUhtwHqB/FDqdgclM004fQtKZ0j86hGSGtJ2BOinpOLQTaCeBZNIZAlOwsVwZg2OMsWVhS5YtWw+WdA+7++sfezrd2ZIf5L3b+52+r38snVa//cr66He7e9/bn9Ja64EsfDQBYx64GiGqjqOgyYYrG6A9Dmogo/X20ajLEuLCrWoGZ/9E8ElHHK5eEKRaiGoz5sG+cejPwoc... | 0 |
science | grade-4 | compare-properties-of-objects | false | true | Which property do these three objects have in common? Select the best answer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADQCAYAAAByQhWRAACezElEQVR4nOz9d5xc2Xmeiz5rrR0qV+eEPAmDyYEzJGcYh6QoBpGUJVvWFU3pKtqWbOkcXVu2dXRsHQXL4R5LR8FXlBUsi8piEiVRoiTmYZjhDIeTEwYYhAYanbsr7bDW/WPtXVXdaAANDBpxPfgVqrrC3rt27ar9rm+93/cJY4wBaLfbTE9Ps7y8TJIkOBwXG8/zqNVqTE5OUigUtnRd7vh3XGq4499xNXMhj3+H40pEGGNMq9XixRdfZNeuXRQKBXzfv9jb5XAQxzH... | [
"yellow",
"stretchy",
"slippery"
] | null | 1 |
math | grade-4 | compare-decimals-using-models | false | true | Compare 0.2 and 0.03. Use the models to help. 0.2 ?0.03 | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC0CAYAAACuelsNAAALC0lEQVR4nO3dX2iV9R/A8c9ygYUjL0IpNNKEAyZZiRMDXVGhqYFKqY2y1U2doAyzLgosUwmyCA0aVIpGmbsRwpJpSRSIeOpiZCUT9cISw6SsXEL+2e9ieMh02vn10aPH1wu8OM+ez9n3ke/Fm2fPzuq6u7u7AwAASHFZtRcAAAC1RGADAEAigQ0AAIkENgAAJBLYAACQSGADAEAigQ0AAIkENgAAJBLYAACQqP6/DBeKpax1UCM6Wxur8n3tRf6pWnsRANzBBgCARP/... | [
"<",
"=",
">"
] | null | 2 |
math | grade-1 | which-bar-graph-is-correct | true | false |
Chad went to a petting zoo and saw three donkeys, five ducks, and ten roosters. He made a bar graph of the animals he saw. Which is his bar graph? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAZ8AAAEOCAYAAABW2BpyAABu30lEQVR4nO3dd7hdVZ3/8ffZ9fTbe256ISRAEhJCCCV00RgVRH6iI4JSHLENiFhQB8VBUWdAdFREBZGxjSgggqj0EggklJDeby+nn93L748TLmQoIiTn3tys1/PwJKfsvb/7kHs+d6299lqRMAzDPgc2G1D0wQsRBEEQhL1GiUBKhhlxaNEqz0X67DB8ojC6hQmCIAgHhsVpaNZA2WRUnmjTYFaikk6CIAiCsLcUfdhQhl4HNhqV8JEKXuVFETyCIAjCvpCSKxk... | 0 |
math | kindergarten | cubes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAMoUlEQVR4nO3dS2wcdx0H8O967c2+7N34sX4kaVQpaUAqyoNUEaICQZA49cCFoEKlIpC4gqh664kDCIE4ol7ankLCAVCBCgkMUg9BpCFFSlon3rwcu/Ejfqy9m934leUw85+ZnZ2Zncd/d8br7+eUrNfrf9Nv/vnPb/7/38Tq9Xp9YQu4UwXKu8BOHUSR0xsD+uPA8TQwmgBiC5v1+tWNsIdF5N65AaC3WFV+M54ATmSUVBNFTXkXuP0EmN8CpqtAz8aO8gWGlqK... | 2 |
science | grade-4 | predict-heat-flow | true | false | Two solid blocks are heated to the temperatures shown. The blocks are placed so they touch. Which diagram shows the direction heat will flow? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAYeElEQVR4nO3deXgc9X3H8ffMXtJqtSvZluRLxjK28W18xQc2mCOBACZpUhJykT5pk6ZN0yfkCW2TPilPytM8SRqSHunztCFJQzgSIA1gLmOwMdjGlyQsW7ZkJMuyrftYaQ+t9pid6R8rLdaBEdF6ZiV9X8/DYzS7O/NdjfazM9/9/XYUwzCMtjjURyCUBM1ACCEywq5Avg0WuaHECUpbzDCOBq0uSwgx2W30gr0ukvphlhOuyUulkRBCZEIoCWf6oDUO70RADWq... | 2 |
math | pre-k | cylinders | true | false | Which shape is a cylinder? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAN/UlEQVR4nO2dW2wcVxmAv7W9sb1ee9eX+JImsWmxnYtoEE1JQdASKjVIKI2EoH1ARSBxETzxBE/wUJ6AF6Q+FCEk7kIqCCmpkAJSCY1E2iYu4FA3sd20Xsd11nev115f1pvl4d/J7NVx3OzMnPX/SaPZPZ7sOZ3z7T//njlz6kun0+noBryTgHgKNtMoiueo8UFjNfQGoGMP+KLr6fTlJbebpSjb50QT1Iwm5E3XHuhvEKsVxWvEUzC8Arc2YCQBVUub8geVVvE... | 0 |
math | pre-k | compare-size-weight-and-capacity | true | false | Which pipe organ is taller? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAGcAAACtCAYAAACtMmErAAAS4klEQVR4nO2de3gcVaHAfzOz77wfLX0FUmqp0Bc+sJTCV6+gttd7rYhaBK9owXI/lCvlcRXkEwQ+P6+t+EBvS0FAe29NoVxssQZB+oGQtNCI0G5S0qRt2s37sdn3zs7O7tw/Nt0kTZqQfWSn6fz+ybxyzpn5zXnMmXNmBU3TtE4FmkPgj4GqYZAjTAIUSDDfAedZQOiMaNrbvlwny+B0lhWCqSmUWJlpgQV5CXMGucEfg8YgdChwJASiT03sMMTkngIp4QEgEAM... | 0 |
science | grade-2 | classify-rocks-and-minerals-by-color-and-shape | true | false | Select the brown rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAAA/vElEQVR4nO29WZMkOZIm9uEy8yMi8ujsqu6e4SyXKyN85Mr+/9/AB1KElF0ZynKmp7e6i51ZGYe72wFA+QAoTA3h4dVVWRmRWY1PJMTD3c3NYDC9VaFQRERoaGg4C/3SA2ho+JLRGKSh4QIagzQ0XEBjkIaGC2gM0tBwAY1BGhouoDFIQ8MFNAZpaLiAxiANDRfQGKSh4QIagzQ0XEBjkIaGC2gM0tBwAY1BGhouoDFIQ8MFNAZpaLiAxiANDRfQGKSh4QIagzQ... | 1 |
science | grade-4 | animal-adaptations-skins-and-body-coverings | true | true | Fire salamanders have poisonous glands in their brightly colored skin. The bright colors serve as a warning sign that the animal is poisonous. The fire salamander's skin is adapted to ward off predators. Which animal's skin is better adapted as a warning sign to ward off predators? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOydd7xdRbn3vzOr7b736SU5Jye9k4QQCAQQBEQRaWKhWECvvPJyVVAE770WxGsDQcHoVRTpV0Ap0qRKLyGV9N5O77vvVef9YydHAgkEjNcr7/5+Pic5Z6/Zs2bNrGfvZ571m2eEUkp5nkcQBFSoUKFChQoVKlSoUOGfEykluq4jXNdVFee+QoUKFSpUqFChQoV/fqSUyIpzX6FChQoVKlSoUKHCe4MgCJD/6EZUqFChQoUKFSpUqFDhwFFx8CtUqFChQoU... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9d5hkVZ3//zrnpsqde7p7ZnpynmFmiEPOKogoiLIIBtTVlS9rxrC7BsQ1oWBiXUVdRXAVlCCIElUyw0Qm59g5VnXFG875/VHd1WG6ZwYY19+69Xqefqbq1r2nzj3hTr3PJxyhtda+76OUokyZMmXKlClTpkyZMv87kVJimiZCiL91VcqU+btEloVzmTJlypQpU6ZMmTL/+1FK4fv+37oaZcr83SLLwrlMmTJlypQpU6ZMmb8Pyr/ty5T56yH/1hU... | 1 |
math | algebra-1 | write-compound-inequalities-from-graphs | false | true | What compound inequality describes this graph? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAALoklEQVR4nO3df0zU9R8H8OfBcciPOlBAIZGCmSUgXw6DOw2FtpiN/HEUX7rldzJbzVrLNnW61vpSS1dbVpI253LxzeZKBlgmfmEjgdRvx28IxFUsBLYaqCDzB3cc3vcP4oI4Tn7J+/P53PPxD9z7+OP52u395nWfz/vz+ajsdrsdCnL8+HGoVCqYTCbRUWaEdUgL65AW1iEtrIOIaCy16ACzrbOzU3SEWcE6pIV1SAvrkBbWQUQ01qQb7MHBQdTW1sJsNiMkJITf8Mm... | [
"$-3 \\leq x<1$",
"$-3<x \\leq 1$",
"$-3<x<1$",
"$-3 \\leq x \\leq 1$"
] | null | 0 |
science | grade-6 | predict-heat-flow-and-temperature-changes | true | false | Two solid blocks are heated to the temperatures shown. The blocks are placed so they touch. Which diagram shows the direction heat will flow? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAaO0lEQVR4nO3deXgc9Z3n8XdV3926ZR22LFk+ZRuMDQY7GDC2x2Y4YpIsCSQZkqyT2cwAw8w8wzKTzbGZDdk8DGGe3clsYJghQMDMGEjw+AbbXD6DL2wZW1i2rFvWffd91P5ROixLmEZqV7Xk7+t5/IBa3aVfd1V96lff+v2qFU3TtMYQnPNBTxQiGkIIkRBWBVItMNsNeXZQGoOadqjb7GYJISa6pWlgPevTf5hshxKPnkZCCJEIPVE444ULISj3gdod0X8hYSO... | 2 |
technology | grade | parts | false | true | What kind of computer component do you see here? | "iVBORw0KGgoAAAANSUhEUgAAAV4AAAEsCAYAAACLwdvQAAEAAElEQVR4nMz9d5hkV3XvD39OPhW7OndPzkka5QwCIcCggETOYJvsdG1+Nte+xgljMDbBNtiAbQyXDEaIJCRAOWeNwsxIo8mhu6dzV66T3z+qT8/u3aeqWhL33nc9Tz+n64Qd1/7utdZee23l6aefjgCiKFr4E8n3fQAURVl0jSkIAjRNQ9M0oigiCALCMFx4V3w/TlvMQ1VpS2EYLkonLmMYhkRRhGEYbdM3TXNRmVRVRVGUhXu6ri9KV04n6blYniAIFtKMy6UoykK... | [
"Network Interface (LAN) Card",
"ATX Power Supply connector",
"Display Adapter/Video Card",
"Hard Disk Drive"
] | null | 0 |
math | kindergarten | fewer-and-more-compare-by-counting | true | false | Which group has more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAALfUlEQVR4nO3d30/b9R7H8VdpKTCghDL3CzexA5m7NItcLG5nQ5NdnBN1yXTRi3N1Eu/8g4wX6o3LMTPHc2IW90Mk2cUWNTOaBQQr2xgiP0dboC0t33NBqsSNDLb28+6nfT5ulEzX997rs9/ybfk2FARBMJ2XxlekdFEqBAJQIZGQ1B6W+nZJe6NSaDoXBDdT1mMB9WcgJkXGVja+2B+V+ls36gRQGemiNLos/ZaXfl6RGlKFjV8gPqDy2sMbrUlSpig1FDf9AoD... | 0 |
math | grade-8 | identify-functions-graphs | false | true | Look at this graph: Is this relation a function? | "iVBORw0KGgoAAAANSUhEUgAAAQ4AAAETCAYAAADH+ejgAAAaI0lEQVR4nO3da1BU5+EG8OcsewMUV1HBoEEMwkZFFmFXGHMzk/FWk1SbNml6cZI2vXxoP3Q60w/t38k0TSbT6fRLkzSZSdLbtNOkacbEJJqrcZLMcltZEHUBE0RLABFdEPZydtnz/3Dcs6wsxhdwd1me30wmZjkeX7k8Oec5776vpCiKAiIiAbpUD4CI5h4GBxEJY3AQkTAGBxEJY3BQQoFAAIFAINXDoDTF4KCE3G433G53qodBaYrBQQk5nU7U19dP+fFnnnkGO3f... | [
"no",
"yes"
] | null | 0 |
math | grade-5 | reflection-rotation-and-translation | false | true | How has this figure been transformed? It has been... | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAPOUlEQVR4nO2dbUxb1xnH/zbGjg01XniJFHDWaAkkG1GDRLMlrlQX2KYlKhnZh6aZmkGkSduSrPtQprRIC6nUJluiSd3C1G84VGqKJgXKpERdDWm1km6UKq6CFAzVNOHChAOJYxKba2PffaBmECCca9+XY+7zkyIFdO9zDvb533tenvM/hmeffVZ0u92Qg48//hiiKILipR/v+vXrssTSGrfbzfXnrLd4JrfbjdbWVlkCnjlzBqIoUrwM4q0XqF3xFc8oSySCILiGhE4... | [
"rotated",
"reflected",
"translated"
] | null | 0 |
science | grade-6 | identify-how-particle-motion-affects-temperature-and-pressure | false | true | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAACNAUlEQVR4nO3deVxbZdo38F8SlhASoEBZUuhOUlvbImA3fSxt1VFLqo7aCnWbxxHUGceFjHstHR11xqK+4wr1GW1VcOmo01D3tqlLa2toqbW2ge5A6EZZwg7hfv+gOc2BAAGynlzfj5Xk5Cx3Alxc515FjDEGP1ZbewZHjx5De3sbRCKRp4tDCAAgMDAQMTGxGDt2rKeLQgSM4h/xRhT/7AvwdAE8qbu7GzU1NWCsG0FBQZ4uDiE8tbVnEB8fj8DAQE8XhQgQxT/izSj... | [
"sample A",
"neither; the samples have the same temperature",
"sample B"
] | null | 2 |
math | kindergarten | count-scattered-shapes-up-to-10 | false | true | How many triangles are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAFGCAYAAAAfCut7AAAoQUlEQVR4nO3dT2wceXre8Xc9G6/tDbAee5FM5mR4gyA+OI6TIEgOWdtAkEMOvgS2c8nJpwRObj4GCJCTRoI0SkAJS0rCaglBGgokATaWTUkUSc2QS0KU5BFFjkiAbHY3u9XFbbKrqSKL3V1dVTlMZjCzGg3/ddVb9avv5yaKrHpAzJ+nu6ue+k4YhqEAAAAAMMKvaQcAAAAA0DsUfAAAAMAgFHwAAADAIBR8AAAAwCAUfAAAAMAgFHwAAADAIBR8AAAAwCAUfAAAAMA... | [
"2",
"5",
"9",
"6"
] | null | 3 |
math | algebra-1 | multiply-two-binomials-using-algebra-tiles | false | true | Which multiplication expression does this area model represent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACwCAYAAAA16xkbAAARQElEQVR4nO3dXWxcZX7H8d85M47NTOzYECe2403AZkNiINrEDSWF9AU2S8JGSBVqRVcrVblDglBU5Srb9jIilSpthSJYJC7apSuWJaBW2+KNRVMSQgOsx5vgJASwiSfELzMJE7/MxC9zzulFtG7G2JY8fobjc+b7uTuPlfP8/bv65dE5x5bneZ4AAAAAGGH7PQAAAAAQJhRsAAAAwKDoXIuJ5JSGRt1ve5bAa6ixtW39ijl/RqbFWTDTdKcGc33G92yMtWhb/S7j9wU... | [
"(2x+1)(x+3)",
"(2x+2)(2x+3)",
"(2x+1)(2x+3)",
"(2x+2)(x+3)"
] | null | 0 |
math | grade-1 | interpret-bar-graphs-ii | false | true | Ron looked in the kitchen cupboards and found some spoons, teapots, cups, and forks. He made a bar graph of the items he found: Which item did he find the most of? | "iVBORw0KGgoAAAANSUhEUgAAAkoAAAFfCAYAAACx0OMsAABvRUlEQVR4nO3dd3yV9d3/8dc1zsw42SQhi71nBBSLgntbq9bV3tpqtbW21t7Wele9q7/bu1pbW8ettmgr2rq1iLMuCCgiyt4yQwgECNnJmdf4/XEyhQCBJOdAPs8+UnOuc13nfK5DyPXmuy7Ftm0bIYQQQgixHzXWBQghhBBCxCsJSkIIIYQQnZCgJIQQQgjRCQlKQgghhBCdkKAkhBBCCNEJCUpCCCGEEJ2QoCSEEEII0QkJSkIIIYQQnZCgJIQQQgjRCQlKQgghhBC... | [
" forks",
" spoons",
" cups",
" teapots"
] | null | 0 |
math | grade-3 | fractions-of-a-group-unit-fractions | false | true | What fraction of the shapes are rectangles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABKCAYAAACB4iNkAAAM1klEQVR4nO3dS2xb55mH8b9pkjJlirrYoa6p7LSOHSBqHAcFnI2lIGi6aIEqu6Kb2JuuU6CL7kbdFZhZpNtuqi5mtlWAdlO3KOXNGCjGUWsB8WUmlhNZlE4tiaIosbyImoVMpYl1eUl95xxZen5bm9R3Hnw4eHF4Dnlic3NzUwAAAACciIS9AAAAAOAoYcAGAAAAHGLABgAAAByKhr2AukkvK0nKlcuSpI54XJI0nO4NbU2HEZ1s6GRDJ7jEfgKALYEP2FPLi/r4yWN... | [
"1/3",
"1/6",
"1/8",
"1/2"
] | null | 1 |
math | pre-k | represent-numbers-with-shapes-up-to-5 | true | false | Which group has 3 rectangles? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAEgklEQVR4nO3dPW4VZxiG4fcc/xQEKIlSUZFsAInd0LAOlpKG5aA0KQk0VDitDZYwPhqKEVIqqqN7Ivu6qvk0zVPdmq+a3bIsy8XNzIfrmavDzO0yAEdxupt5dDLz7MHMr+czu4uvy/L2cutZwF334vHM6fvr9fDb+cwfv6w1AjiGq8PMuy8zn25m/rme2V/eri/EBji2RydrW2ZmPh9m9of/vAA4th9t+bbM7LedAtwnggNkBAfICA6QERwgIzhARnCAjOAAGcE... | 1 |
math | grade-5 | compare-fractions-and-mixed-numbers | false | true | Which number is less than the one shown? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABkCAYAAAC8REciAAAf40lEQVR4nO3deXRc1Z3g8W+VSipJpX2zdsk2XoX3HWOMF8AYEnCgITSZDB0m0wlkIZ2ZTGcy6UmnO5mQOZnpSeeQSU4SMp1gIGyOCQYb29jG2Bhbsiyv8iZZ+76WSqXa3vxRJRlZu1RV71bp9/knxJZeXfie83R1X91bBk3TNIQQQgghhBB+YdJ7AGOpsnZztq2Fpt5emuw2mnptNPX20mLvpaG3h+beXprtvcRFRpIQGUVilJlks5kUczRZsRayYi1kx8aRY4ljZXo... | [
"5+1/2",
"7+1/2",
"3+1/2",
"4+1/2"
] | null | 2 |
math | pre-k | represent-numbers-up-to-10 | true | false | Which group has 7 hearts? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAO1UlEQVR4nO3dz06bVxrH8cd2DMbYcRbpjOgCLCUzA4sCUhfDxipl01VFegWBKwhcAc4V4FxB6RVA2v3EUjdVJSSXLtDMUImwKB2VBTSJwRjHs3AcuQ7G/46f8/jl+9mkNPHRc95z+L3mcPyeULVarf52KXJQFHlVEbmqCgA4cSckkoyI/C0u8tcRkdBvpWr1xz98lwUg6P55V+TOf4u1LyZGRP4xXksjAHDhVUXk329Eji9F/lMUCf9xVfsLwgaAa8lILVtERF5... | 0 |
science | grade-3 | read-a-thermometer | false | true | Select the temperature shown by this thermometer. | "iVBORw0KGgoAAAANSUhEUgAAAMIAAAHaCAYAAABSE5ZzAAB5U0lEQVR4nO29e5RcV33n+91V1d1V/VJ3y9ajJYOllpBtWZZtWX4HO/iGlz0ZSCA8soDMJBAYmMuErEAyfyR3JouVSTJrgjPcyYVMZvAEgxnsOAvwBOJgIMbY+CFjCRtsvWyru2XJVrfs7q7qrq46+/5x6pzae5/9PGef6mpJv7Xk4676nk/99uv323ufOqcIpZQiJ2s2m5ifn0d1oYq5+Tk0lhugoCAgoYAAoO0jIQSU0vDY0p3xekF3RugJ4XRZ9MVSEb29vSiXyyi... | [
"30°C",
"5°C",
"40°C"
] | null | 1 |
math | algebra-2 | describe-linear-and-exponential-growth-and-decay | false | true | How does f(t) change over the interval from t=6 to t=8? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAABwJ0lEQVR4nO3de3hU9b0v/veaS5LJTEJC7iQkiEjaYIKAgYaLYnGr1WoL7d7Ynl7sz5699Xi31Xq69+lz2sfHx/Pbu+2vHutxezmItm5at2gFDAgSAYNyiRBIVIwIIQFmMpO5X9fMrPX7Y5iYcM3A+mZmkvfrH55c5p0Pa2XWvOebNWskVVVVEBERERGRJnTpHoCIiIiIaDxhwSYiIiIi0hALNhERERGRhliwiWiErVu3Ytq0abjlllsAALfeeiveeOMNAMDJkyexadM... | [
"f(t) decreases by 2",
"f(t) increases by 3",
"f(t) increases by 2",
"f(t) increases by 1"
] | null | 2 |
engineer | grade-8 | laboratory-safety-equipment | true | false | Select the fire extinguisher. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAPoAAAD6CAYAAACI7Fo9AAAsrElEQVR4nO2deZRdR33nv7+qe+/belGru7W0LcmyLVu2LLMZYgxObAMzHCATQoITZsiQSWbgZIEMjI0XyUkHvMk2yZAJnCELkJwDgeSEDIcAgWM2w3FszGIbhIRk2ZYtW4slWerlbfdW/eaPe+97923d73W/191P+n3Okbr7vXur6tatb9WvfrUBgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiA... | 3 |
science | grade-5 | predict-heat-flow | true | false | Two solid blocks are heated to the temperatures shown. The blocks are placed so they touch. Which diagram shows the direction heat will flow? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOoAAADGCAYAAADc+hwDAAAS7ElEQVR4nO3de2xc5Z3G8e97zhnbMx7HcXyJHZuYXEiATUvZtlDUEhKRFYRL+aMVBSq0olVpd7vaUpVWVUUlkLbdalei2+2uRMsWWlUroBSiVcgC3bbhTpsCCSiJSEJCnOD4Ek98v43PZf84duzYM2MnMfG88HwkSxnPzJnjzDzze2/nHBNFUdSehXeGoD8AP0JEFphnoMKFC1KwtARM+2gU7ehb6N0SkXwuXwTegaH4RkMJrC2PUywiC6s/gH2D0JaF/UPg9Pn... | 1 |
math | kindergarten | count-scattered-shapes-up-to-10 | false | true | How many hearts are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEfCAYAAAA0i7JEAAA51klEQVR4nO3deZRldX33+8/eZx7rVNWpqu7qgVGm5iqKKI7BIYASiTzBSDqJ3DxZWXmAXK9DEjHGJGIcwuNacRGHqDdRsrwqktwLSRA0DjcEHhkeiPAotEBDVzfd1VV1qs6pM0977/tHdWNDdxdV1eecPZz3ay2Xa9nlOd+qXbXPZ//2d39/huM4jgAAAAAEgul2AQAAAAB6h4APAAAABAgBHwAAAAgQAj4AAAAQIAR8AAAAIEAI+AAAAECAEPABAACAACHgAwAAAAF... | [
"7",
"3",
"6",
"2"
] | null | 2 |
math | algebra-2 | domain-and-range-of-radical-functions | false | true | What is the range of this function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABf50lEQVR4nO3df3RU9b3v/9dkJr8TkpBAEgIJIkILkigCCoKCWPWI0kLbi/1lPctzWntr2+O5t3d19dv2nON1ebtuf916ba/1tLfqWb2rp7ZqFQwUSxQaFCRCIEEhRggJIT8mP2cyP/b82N8/aHKIgCS4P0yGPB9ruVwzmf3Km71n9rxmZ8+My7ZtWwAAAAAckZLoAQAAAIDLCQUbAAAAcBAFGwAAAHAQBRvAKGVlZdq9e/fI5WPHjmnatGlqaWlJ4FQAACQPCjaAUSo... | [
"$\\{y \\mid y \\leq 2\\}$",
"$\\{y \\mid y \\geq 2\\}$",
"$\\{y \\mid y>2\\}$",
"$\\{y \\mid y<2\\}$"
] | null | 1 |
science | grade-4 | identify-mammals-birds-fish-reptiles-and-amphibians | true | true | Reptiles have scaly, waterproof skin. Most reptiles live on land.
Reptiles are cold-blooded. The body temperature of cold-blooded animals depends on their environment.
A box turtle is an example of a reptile. Select the reptile below. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOzdd7wnVX34/9dpM/Npt24vsCy9CgiKBRRQQeyKStSImqhf/fpNlGiMGGMSTUyCLUZNLLFFTZQIYgk/0RABEaQsve6yy/a9d+/e8qlTTvn9Mcv9soCy6BoN33k+HvcBnzKfmTufc2ff58z7vI8IIQRrLd57KpVKpVKpVCqVyv9MUkq01oiiKEIV3FcqlUqlUqlUKv/zSSmRVXBfqVQqlUqlUqk8Pnjvkb/pg6hUKpVKpVKpVCr7ThXgVyqVSqVSqVQqjyN... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6cAAADMCAYAAACPx9V0AAEAAElEQVR4nOy9ebwlVXnu/33XqmHvfaYe6GZGZFJGFSdEJaJRFGfFSMSImqhXr0mUaIgYr0k0MQmKxqiJQ5yiJsqNQxz4icbrPCJEhaBgQOYez7ynqlrr/f2xVtXep7uBxrRDzH4+n0Ofs4eqVatqF/tZz/M+r6iqVlWF954JJphgggkmmGCCCSaY4L8njDEkScJly3CPKZixv+gRTTDBnrHi4EdduK2A9Qk8ZF143EyI6QQTTDDBBBNMMMEEE/z3h/eeqqomxHS... | 0 |
math | grade-8 | identify-congruent-figures | false | true | Are these shapes congruent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAERCAYAAABB3NDkAABmCUlEQVR4nO3deVzN6fvH8Vd7ColkyRYpWSMjZN/Hvo2x70b2ZcY2xlgGYx/Gkn1nMEyFYRqMLCFEWYqKJiRRUtqXc35/ZPpOP2aGnPq0XM/Hw+M7nXOfz+d95pvm6j73fd1aarVajRBCCCGEEEIjtJUOIIQQQgghRH4iBbYQQgghhBAaJAW2EEIIIYQQGiQFthBCcW5ubujq6qKtrc28efOUjiOEEEJ8FCmwhRCK69atG6mpqTRo0IDatWsrHUcIIYT4KFJgCyFyBbV... | [
"yes",
"no"
] | null | 0 |
math | calculus | find-limits-at-vertical-asymptotes-using-graphs | false | true | The graph shows f(x). The dashed line is a vertical asymptote. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AAB3sklEQVR4nO39e3RU530vcH/nPqPrCElIQiAwF2OEEQYMNjYEEkhMTOIEUtdOm4t7Tvu2Oc6lXW1X0qy+Wevk0Jy8TdMu99ipT0/T2GnSpqFxnAQs29hgg0UwIINA4iYE6ILQZaSZ0Vz3/f1jGCGBBCNpPzNb4vtZywtrZu/vPBrN7PntZ579PDbDMAwQEREREZEp7LluABERERHRTMICm4iIiIjIRCywiYiIiIhMxAKb6C6yf/9+LFiwANu3b891U4iIiGYsGy9yJLp... | [
"$\\lim _{x \\rightarrow 5^{-}} f(x)=-\\infty$",
"$\\lim _{x \\rightarrow 5^{-}} f(x)=\\infty$"
] | null | 1 |
math | grade-5 | multiplying-fractions-by-whole-numbers-choose-the-model | true | false | Which model represents the product 3×
2
5
? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAT4AAACOCAYAAACohWTxAAAE3ElEQVR4nO3Zv2vc9x3H8dfJPyCSohBk2nTQIkg7KKvIYIz9D6QdO1tjC5kMhQ7mpia9eMoQ48V7skX5B3QkTiEaPLQy5AdaNPSKrOWsE47j49vhkBOCIf6eFAvu/XjAF91xvO/zRW948oXrNE3TDJ4k3x0lj8bJ0yYAM+V8J3n1XPLmfPLbi0ln8H3TfDU869sCeDneXkrOf3s0efO7i8kfFiZVBJglj8bJ16Pkv0+Sb46SueHTyQeiB8yqV89NGpckh+Nkbvy... | 0 |
math | grade-4 | angles-of-90-180-270-and-360-degrees | false | true | What fraction of a turn is this angle? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABjCAYAAAChQXeaAAAMMklEQVR4nO3da3DNdx7H8c8JEiJxq0sxIYJFUjo1cbp2Jy6ho21co6iWgy2tRuh0XBolHgilqYxbRMdlWqFWalQN6dbUUvJAN7U1GY3UukWySZvIRhwRJDj7wMomJJHUuf2T9+uRyP+c/+fhZ37zy/drstlsNgEAAACwCw9XBwAAAADqkxoLdn5OppLiY3TTWuSkOAAAAICxmZ50RWT28J66UVSooAEhmrl0ndp39ndSNAAAAMB4nnhF5DnzYN0pKdZPx/+miJd6Kf7... | [
"1 full turn",
"1/4",
"1/2",
"3/4"
] | null | 3 |
math | grade-8 | compare-linear-functions-tables-graphs-and-equations | false | true | Function A and Function B are linear functions. Which statement is true? | "iVBORw0KGgoAAAANSUhEUgAAAjcAAAGlCAYAAAAGbtd7AABQ90lEQVR4nO3de3xTdZo/8E+SJk2aFFoKbYGW0opFFKSMXMpwqYAIeNnFC6CODuqOzMzKKIy6szo7uM6Ozo4j3kYdf17GGS8jioxcXAXXAgMKpesFKEqLkhZbSlMoTZs09+T7+4NJbKBt0p6TniT9vF8vX7yanj7nSXzyPU/Ok5OohBACRERERElCrXQCRERERHJic0NERERJhc0NERERJRU2N9SvnnnmGahUqm7/W7x4sdIphhk9ejRUKhU2btzY7/ueM2dO6HHZvHl... | [
"The slope of Function A is greater than the slope of Function B.",
"The slope of Function A is less than the slope of Function B."
] | null | 1 |
math | grade-2 | which-picture-shows-more-up-to-5-dollars | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlYAAACYCAYAAAAm2KfyAAB8DklEQVR4nOy9Z3hc13Wo/Z46vQGD3gESJMDem0hJFNWrbdmy5MR2nMSOSxLHyU1zbuw4iZPcJDftfrGT2E5c5CKrWZLVqUJRbGInWEB0EH3Qps+c+v0YAJJs2RZlUiKF8z4PH5IYAHP23rPWXnuvJti2bY9o0JmBpAmGjYODg4ODg4ODw5tAFiAgwUIvlKkgjORt+0DinX4sBwcHBwcHB4fLmw1BkDsyhf9UqLDIV7C6HBwcHBwcHBwcfjFJE9rTMKzB2QyICaP... | 1 |
science | grade-4 | identify-mammals-birds-fish-reptiles-and-amphibians | true | true | Reptiles have scaly, waterproof skin. Most reptiles live on land.
Reptiles are cold-blooded. The body temperature of cold-blooded animals depends on their environment.
A helmeted iguana is an example of a reptile. Select the reptile below. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOz9ebxlRXX3j7/Xqtr7nDv1vT3Pc9NNQzdgMyOgiIqAAyoIUSNqoj76mET9aowkxuQxUROnDA5xiEOiRiWiOISfoAZEBplHG+im53nuO51z9q6q9ftjN/ehAbUxbTQ8+/2iXy/OsPeus0+duquqPuuzxMwshEBKiZqampqampqampqa/5moKt57pCxLq4P7mpqampqampqamv/5qCpaB/c1NTU1NTU1NTU1Tw1SSuhvuhE1NTU1NTU1NTU1NYePOsCvqam... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6cAAADMCAYAAACPx9V0AAEAAElEQVR4nOy9Z7hkV3nn+1tr7VA5nJzP6RzUamUJSSAQyESRjLDA2DAwY2bM+JmxfbGxx/Y44PDYGJixgTG2L8a+wHUakglGCIESKLVaUrfUanXuk1OdU7n23ivcDyX1WCBDg2Ubc+v3PP2hdu3aa9Wq96ze//0m4ZxzWmustfTo0aNHjx49evTo0ePfJlJKPM/jgRrsykJe/WvPqEePZ6Zu4GgTFmMoe/DcUve47AnTHj169OjRo0ePHj3+7WOtRWvdE6Y9vu/... | 0 |
math | kindergarten | circles | true | false | Which shape is a circle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJgAAACaCAYAAABVCoEqAAAHNklEQVR4nO2dy27bRhSGj3zJIk1aoIteHqDtI+RB+tRxYgcRYAexvDAQA1Y3gijSFCmRM10wF0eR5bE9l3PO/N/KhgyJpj9T1HzkzMhaa6croouaqOyJOksAPJqDEdHLfaK/nhP9/oxoNG2tPVqk3iygkVc/Ex1M6uGbP58R/fPTYB8Aj6XsiT7eEF2viM5ror1FNzwAuYAPXu4PLhERVT3RXn/rAQB88MWltSXaS7spQDsQDAQFgoGgQDAQFAgGggLBQFAgGAg... | 2 |
math | calculus | identify-graphs-of-continuous-functions | false | true | Is the function f(x) continuous? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AAB6/ElEQVR4nO3deXxU5b0/8M9syUz2kIQkBBL2JZAgYVEQBAUVQa2gFGut2sW2Vm21m9Zf673tpV5vrfXai9ZaF7RaqyhuYECUsAURCBBI2EKArGSZZDKZ/cyZc35/0KQEWSbwnJxJ8nm/Xr5ezsyZz3yZzJz5nmeeeY5BVVUVREREREQkhFHvAoiIiIiI+hI22EREREREArHBJiIiIiISiA02UT+yYcMGDB06FAsXLtS7FCIioj7LwB85EvUf8+bNw7e+9S3cfffdepd... | [
"yes",
"no"
] | null | 0 |
math | grade-3 | select-figures-with-a-given-area | true | false | Which shape has an area of 8 square units? The shapes are made of unit squares. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIYAAADgCAYAAADG1B7WAAADn0lEQVR4nO3dQW6WVRSA4fPVwkyNCezBAcycCZEF6H7cge5H52AIugAYsAahA2UkED4HbZNG33G/m/zPM/rbDu5N+vakk5O7Pf3zw/77xceZmdlmn5ltOEX77LPN7DOP7p3P+R8XH2+kIIrTtV3+9reZFxcf5/x6Rnz9+dk8vn9n7t0Vxyl6+36f528+zOt3n2afmbPrDERx2u7d3ebx/TuXX+wzZzd/wGm7bmDbboQBNwmDJAySMEjCIAmDJAySMEjCIAmDJAy... | 1 |
math | algebra-1 | identify-linear-and-exponential-functions-from-tables | false | true | Is this function linear or exponential? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEqCAYAAAAvYSeKAAAhi0lEQVR4nO3da1iVVQK38T8nEYOxUlHESA4Zaql4UR5QsXSwLJsmREWDNEXTasZeRzyUhDQqnjLRUcuhxKR8Q22cEo20LGdQcyrFxvOAmkcYUYEtIW54P/i2Zxg0FRbilvt3XX1g7b3Xs1af7v1caz86dH39bLnswPsvNVDUwgu1vYwa9/f4O2t7CQAAAKgGx9peAAAAAHA7IbABAAAAgwhsAAAAwCACGwAAADCIwAYAAAAMIrABAAAAgwhsAAAAwCACGwAAADCIwAY... | [
"exponential",
"linear"
] | null | 0 |
math | grade-2 | certain-probable-unlikely-and-impossible | false | true | If you select a marble without looking, how likely is it that you will pick a black one? | "iVBORw0KGgoAAAANSUhEUgAAAJkAAABmCAYAAADYmDN2AAAikUlEQVR4nO2dW4wk53Xff19V36dnpmdmL3PhalciubyTEsnEkijTEiNDgCwjkaIgL1aiQAECOA8G8paHvMcPMYLAiJWHIIBjKY5jAYYFIwIUU7Rj3hyRMiVKpKglufedJec+fa3q+k4evltVz1LS7lx3do4g1lZXd0/V6f853znn+77zVyIiHMmR7KJE+30DR3L45QhkR7LrUtrvGzjo0l5OWb3Up7s6pLs6pLOakvY0tYmYxlSZRqvE2HSZmdM1qs14v2/3QIo6ism... | [
"certain",
"impossible",
"probable",
"unlikely"
] | null | 1 |
science | grade-2 | identify-magnets-that-attract-or-repel | false | true | Two magnets are placed as shown. Hint: Magnets that attract pull together. Magnets that repel push apart. | "iVBORw0KGgoAAAANSUhEUgAAAdcAAAC6CAYAAAD8mQfxAAAgjklEQVR4nO3deZxVdf3H8dfdZpiFgRkGhmHfBAdQFARcQU3LNHczRTMp/JVpZWm2adrPn5nLL80lMyF+WmaZZmVqEGoqiyCgoqwCwzLAsMwwC7Pe5fz+OIwOMNu9c+49y30/Hw8ewHDvPR+95/F9n+9yvsdnGIaBiIiIWCZodwGeVLEVqspg/w44sBcaa6HpADTXQ1Mdmf1+RZ9oDXnRenpGD5AXgLyBo+kZ8JEXhLygj74ZMCLbz6hsHyOyfWT57f6PEhEn21BvUFp... | [
"repel",
"attract"
] | null | 0 |
math | kindergarten | count-to-100 | false | true | How many diamonds are there? | "iVBORw0KGgoAAAANSUhEUgAAAcMAAAHWCAYAAAALneL2AACk0klEQVR4nOyde3Qb5Z33v9JodJclS458j20cOwmxG5Jum4YGCD3QAmHbhbShh8O2Sdiye8rZEgrtaUkv9AJblnt7mvNugZBu2aZAA2xLCH3plgAhLvQllzppgp1gO77LkixZd40u7x9jCUWyLWk0Fz+b5/OXjkd65psnzzw/zTzzGanS6XQ6GAyit7cXfX198Hq9oFAoFArlfzN2ux2dnZ3o7u6G2WwGAoFAeu/evenDhw+n3W53mgQeeeQRpSOUDc0sDzSzPNDM8kA... | [
"73",
"80",
"83"
] | null | 2 |
math | grade-2 | certain-probable-unlikely-and-impossible | false | true | If you select a marble without looking, how likely is it that you will pick a black one? | "iVBORw0KGgoAAAANSUhEUgAAAOoAAACcCAYAAABx7zeSAAAkYElEQVR4nO2dfUxUV/rHv8oAMrO8DU6k3ra4SFcwY10WiFi342q3gn0JMCQCWrbabISSJl2ZNoJAbDa8mf1V23RjLW41Siw2luI0u0Ga2heQtQIT2iwR2qK7vAxg0RlgmOFtmPP7g527jDDvd17ucD/JJPNy7znnzsz3nuec8zznWUUIIeDg4PBqVnu6ARwcHNbheboBnuDzzz/H119/jf7+fgwODkKpVEKpVCIwMBAURYGiKDz66KOIjo7G888/j1//+teebjLHCmf... | [
"unlikely",
"probable",
"impossible",
"certain"
] | null | 3 |
math | grade-7 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines parallel? | "iVBORw0KGgoAAAANSUhEUgAAAEsAAAB8CAYAAAAhMU3/AAAHSElEQVR4nO2df0xVZRjHPwdkl8TggiFqKFzJMAURlfmzTKs/mpm2ciprU5erP9xSa2vq3LStZT/+QVe6ZivcUvvHDXXm1nJS6tTwB3KpSU5EUxMxvBeFQSxPf1wOSlzgnnPf95xXzv3+42DD99nnvO/zvOd9nvc5mq7rOjFFpDinDXiUFBbW1fo6m814NBQW1u7DpWzfV2KzKeprQLhf+msrOeYvp+CpSUwf96zNJqmrsDOrouYkd1uCrPhsCcHmgM0mqauwsG4H6gG... | [
"yes",
"no"
] | null | 0 |
math | pre-k | fewer-more-and-same | false | true | Are there fewer cats than toy mice? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEECAYAAAASx0PMAABgG0lEQVR4nO3dd5xcd33v/9c508vO9q4t2iatumTJliy5SG6AyQ8MoeX+jIkTfBNaAjc3NxcDCSGF8osDBkKwcQghNrYJ2BiwYxn3ot7bStt7L9P7Ob8/RjvSelV2V7PSHvnzzINYmnbOnPfjzPerb1V0XdcRQgghhBBCZIR6pU9ACCGEEEKIq4lUsIUQQgghhMggqWALIYQQQgiRQVLBFkIIIYQQIoOkgi2EEEIIIUQGSQVbCCGEEEKIDJIKthBCCCGEEBkkFWwhhBB... | [
"yes",
"no"
] | null | 0 |
science | grade-3 | identify-mammals-birds-fish-reptiles-and-amphibians | true | true | Mammals have hair or fur and feed their young milk. A sea otter is an example of a mammal. Select the mammal below. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOy9d9gkVZn3/zmpqrufPIEZhgzDoCSVIAiKsIoEwQSyIiy+oC6rgoKKoK6rLPvqtYphRVxBRcTBRTH8FBUBcRcRRIKABGUIQ5iBYeKTurvCCb8/Tj0NwxBm4FH2xfpc1yjTXV11Kkz3fe7zvb+3CCEEay3ee2pqampqampqampq/t9ESonWGlGWZaiD+5qampqampqampr/95FSIuvgvqampqampqampuaFgfce+XwPoqampqampqampqZm+qgD/Jqampq... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6cAAADMCAYAAACPx9V0AAEAAElEQVR4nOy9eZwdVZ3+/z7nVN2t9+4knXT2hYSEJEAg7CiIrIKiLCPCyICOjojriDI6jl9Gf/oa99FhHNxFUBSXLwIiICpb2BKSkLAkgWxkT3en17tU1Tmf3x+n7u2EsCQYdb56H19tk3vr1j1Vde7tes7z+TyPEhFJkgTnHHXUUUcdddRRRx111FHH/5vQWhMEAYsHYFYDNJm/9IjqqOPFMWhh1TBsjaAtgBNa/eO6TkzrqKOOOuqoo4466qjj/30450iSpE5... | 0 |
math | grade-5 | median-find-the-missing-number | false | true | Mark has the following data: If the median is 73, which number could m be? | "iVBORw0KGgoAAAANSUhEUgAAARIAAAAkCAYAAABFY7UnAAAJiUlEQVR4nO2ca2xb5RnHf8dOYjt2bKeJc3OSJqRJmoSkJDSltLSUy2BiA7EOSgXatI1NYxPTBhJfNk1C7IrYhLbBmBgFaR+2bpQBo6JAy6XQqc2gaZI294sbx7nfbCeOb7HPPjhx6iYRBNs0dd/fNz/n9Xn/9jnP/7zned9zJFmWZQDmQfYAQSAUEQgEguVIgAIkNZC0EJJlWZY9gPcSChMIBJcnqpChKJhHmIhAIPh8eIF5UMjCRAQCQRTIXlAQuNQyBALBZU0AFKK... | [
"93",
"69"
] | null | 1 |
science | grade-4 | identify-ecosystems | true | false | Select the estuary ecosystem. This ecosystem has:
a mix of fresh and salty water
muddy soil that is rich in nutrients
many different types of organisms This ecosystem has:
daily flooding and draining of seawater
water that is rich in nutrients
many different types of organisms | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACtCAYAAAD2xRSHAAEAAElEQVR4nOz9ebxkV1nvj7/X2kPNdU6deep5zDxBQkhCICTgBUVACCKQiwGiIBG5ktcFQXHgXoKoIBADqCAhiviDi/hzQsAASYDcQOapu9Pp4fSZx5qr9rS+f6za++yqU90JKMM19cmrXvtU7WnttXenPvV5nufziLuLSu3LQM6ghx566KGHHnrooYcefiQo+3CgCqLkKdUjnj300EMPPfTQQw89/KhR9kEopdRPeiA99NBDDz300EMPPTw9YMbfvOdP/gYAIQR... | 1 |
math | grade-1 | open-and-closed-shapes | false | true | Is this shape open or closed? | "iVBORw0KGgoAAAANSUhEUgAAAQkAAABkCAYAAACVdcVUAAAIzklEQVR4nO3dPUwb5x8H8G/Qf3FkJxJ0AeEVSylSQM0CUyJSpQxkxFVYICpt5Ay81IwxwoyYlw5BoaliL4l0SP/FVCKVQDA5SyqIZCod60XuUleCi/BIB/McL8bmsO/tsb+fOdI9eQRf7nv3u7sbx8fHxyAiKqPJ7QUQkbcxJIioov+5vYCz9j/86cpxO3q+ceW4RDLwREjktRyWRyah7amuHD/4dQiR5AJagm2uHJ/Iy264feEyo6ShxBIoHOpobm/FVw7/ov6j5fD... | [
"closed",
"open"
] | null | 0 |
math | kindergarten | one-less-with-pictures-up-to-5 | true | true | Count the pumpkins in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAA7/ElEQVR4nO3deZwcV3Xw/d+tqt67p2dftI82S5YsWTbGG97Nvj4hed8nrAnkDSEQSIBAnnwSSAjJE4hDQkIWCCTBJmQjZglhN7YxYBtsy5Zs7bs0mhnN3nvXcu/7R49GM5rumR55NDOyz/fzsaXpqrpVXTXn00e3z71XGWMMQgghhBBCiHlhLfYFCCGEEEII8VwiCbYQQgghhBDzSBJsIYQQQggh5pEk2EIIIYQQQswjSbCFEEIIIYSYR5JgCyGEEEIIMY8kwRZCCCG... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA7sAAAB+CAYAAADlVwZsAABv/klEQVR4nO3dd5xcZ2Hv/89zyvSyvantrrolS3KvuJsag1P43RtqgNwQAgkQCOTem0AgubkJLYFASAiQYJN2Q7AxBEMo7rjgJsnq0q7aanubPqc8z++PWe3uaGd2Zx1Ju5af9+sFkmbOOXNmzjzj73OeJgCFpmmapmmapmlnhVKKAQcO5yDtg6fTtqadF5aAuAnrI9AaAIGu7GqapmmapmnaWTNQVDyVWuqz0LSXt6sSYC31SWiapmmapmnaheRQrvRnewA2Rks... | 0 |
math | algebra-1 | identify-functions | false | true | Look at this table: Is this relation a function? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAABnCAYAAABFEg2lAAAJjUlEQVR4nO3dbUxU2R0G8AeGkemgOzgy4CADKoqVpogWcavWpKSyVRJJSZQPEluhcWNDLJFEF0PiS1Ol+kH6InExC27UcQsRtEKrrkoFYhe0Ad92t2LYsgwDw0B4GVBe5/SDMoWK1zIDnntm/r/ERM9o8sSbJ/fe4Z7/9SoqKmIghEzKBwAqgo7yzkFe+bHlAB0PGfHmHYAQOaOCECKBCkKIBCoIIRKoIIRIELogH626gLwNdVjgtxQAEKGJwZ823MdHqy5A6a3inM6... | [
"no",
"yes"
] | null | 0 |
math | kindergarten | introduction-to-symmetry | false | true | Does this picture have symmetry? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAAAnsklEQVR4nO2deXxU1fn/P8+ZmSSQAElYVFABRUERXLIQqBZwgYCi1goqBKxaRYm41tavdRm17c/W+tVWq2K1SBbUoFUJq4CgsiUB6heEIHsCISHbZJ/Mcs/z+yNgQzKTuZOZzELO+/XixSv3nvOczyyfOffce85zAIVCoVAoFAqFQqFQKBQKhUKhUCgUCoVCoVAoFAqFQqFQKBQKhUKhUCgUCoVCoVAoFAqFQqFQKFxDwRbQ3aman9WbNMwjwbeDcQkXHQSAQhA+hTX... | [
"yes",
"no"
] | null | 1 |
math | grade-3 | reflection-rotation-and-translation | false | true | How has this figure been transformed? It has been... | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAHOklEQVR4nO3dT0wTaRgG8AepQCuDhAJNLAdKNAFXYOPGf4mJY+DkhZjsRb1IjHvabHQvG5PdpB42u8ke3MtelgNoYsyeFu9UloTNol6KNdIE03pwzFagIa20FsrOHgxEoaUzbWc6M9/zSzxIZt7va5mHaWe+vq07d+6cKssyqmFmZgaqqoL1yq83PT1dlVq1JsuypZ9n0eq5ZFlGMBisSsHbt29DVVXWq6CeU/C4sla9fVWpRESWxqATCYBBJxIAg04kAAadSAAMOpE... | [
"translated",
"rotated",
"reflected"
] | null | 1 |
math | algebra-2 | find-inverse-functions-and-relations | false | true | The graph below shows a function. Is its inverse also a function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABoRklEQVR4nO3df3yU9Z3v/fdkZvI7ISGBAMEEAUHRgKKgIIguVq1WLXZ7Y3e7bs/a7tq71m7P6e7d07vt2bYeT8/dtbu12u1u160/7t7bs56q9VewWBFoUJEIgURFjJIQIL8nyUwyM9dcc133H2Ei4Yckcn2ZDHk9H48+bCZzvfnkuub6zme+851rfK7rugIAAADgiax0FwAAAACcTWiwAQAAAA/RYAMAAAAeosEGAAAAPESDDWCUf//3f1ddXd3Iz7Zt695779XQ0FA... | [
"no",
"yes"
] | null | 0 |
math | kindergarten | count-to-100 | false | true | How many diamonds are there? | "iVBORw0KGgoAAAANSUhEUgAAALAAAAAsCAYAAADFEzJmAAAMJ0lEQVR4nO2dW2xU1RqAv9lz2zPTaWegtqUXWgTKXSwqlwdEhKNRiFFJxBgNEC8PEo8QwUcl+mRAxRh48SgQzzHBo4QY0RDBFGIUUClyO6VUKb13LJ3pZe4zu+dh2qYd5rpmz7Qk/R5n77XWn+aftf9/f3tPNYODg4NMMskdijTeAUwySSZMJvAkdzSqJ7DPM8hn7/7NZ+/+jc9zB1QnXhfu95bifm8peF3jHU1S3MFe3jz+GG8efwx3sHe8w0mKKxig5vsj1Hx/BFc... | [
"3",
"4",
"1"
] | null | 1 |
engineer | grade-7 | identify-control-and-experimental-groups | false | true | In this experiment, which were part of an experimental group? The passage below describes an experiment. Camille wanted to find ways to save water. She learned that people can reuse greywater, which is water that has been used in sinks, tubs, and washing machines. She wondered if her plants would be less healthy if she... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAEhCAYAAAAUBJnbAAEAAElEQVR4nOz9WbAkWXrfif3O4ltsd8uszKysrasXdAMgFgLcZ2g0aMwkakTTaEakjJQ4Rpn0xhdptJie9CC90vgkM3GML5JpmZFoI5NMmiExJFYC1SAAAt0AGo1uVHVVZVbletfYfDuLHo4fD4/IezNr7axq1GcWduNGuHu4+zn+nW/5f/9P/MN/+A89X8gX8oV8IZ8j+cf/+B8/l9/VAP+7//3/tv/Ae3/p+w/yffzfe9+/ANq2xXuPcw7n3NZ+QgiUUgghEEIgpex... | [
"the plants watered with greywater",
"the plants watered with tap water"
] | null | 0 |
science | grade-2 | natural-resources | true | false | Which of these pictures shows a natural resource? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAV4AAAElCAYAAACszooYAAEAAElEQVR4nOz92bJt6XXfif2+brar3c3p8ySyAUCAACVKVKlKdrgc4fC9wxd+AF/5AfxgvvCNH6CksiiJBEmQRCIT2Z1ut6ub7df64lsJlSOoMIN03WFGnIg8K07uvfZec45vjP/4N+LPDyn9tIWl4g/XH64/XH+4/nD9//E6BfhND+8tbDX8bzf5dfmHovuH6w/XH64/XP/rXEsFP23zf3fhv74u/1B0/3D94frD9Yfrf73rhxrr0n99Tf9D//D/+n/7H1BKIlW... | 0 |
math | grade-2 | estimate-to-the-nearest-ten | false | true | How many marbles are there? Estimate. | "iVBORw0KGgoAAAANSUhEUgAAAiYAAAFvCAYAAAB+cQB/AAEAAElEQVR4nOz9eZRdV3nnjX/2PufeqtIsCyTZKpkgWcbGtuQEguUpgJyJWKyVlyE/MIQ0vOkGk7U6TYdeBEiy1kvyYpNOvw3pThh6rWa2CYbuXiseAglmsOWRJJZkeZBkwFJJlrBVUpWq6ta99+z9/P7Yw9nnVpVUJVVJVVI9C3zq3irde4b9PPv7fJ9JiYgwL/MyL/MyL/MyL/MyCyQ/2ycwL6cm0hjAHtgFgOpZgl5z5Vk+o3mZl7Mn8/owL/My83Km9GwemMwRMXu... | [
"about 20",
"about 70"
] | null | 1 |
math | pre-k | fewer | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHIAAACGCAYAAAAB3t5yAAAbKklEQVR4nO2daXAc55mYn+657xkMgAEG90GA4AGAICnJss1D8sobxyaXonxsqmhHXqucytreWHHVJikfZcVVqfxY+VCldn+oyluxE+3asazD50qUCOrisSIJ8JBwkQNgAAwwmPu++suPAUCQFkGQBAloap4/mMb0Nd/T/d39tiSEEL4sjCYhVoC8oMyHALUEFhVsMoJLC5IvI8Sp6HqfVpk74X4rqEeSxYVaLXSaipbLbHxiBRhKwEwWhpMgR/PFL8oSP1xYVEV... | 0 |
science | grade-3 | read-a-thermometer | false | true | Select the temperature shown by this thermometer. | "iVBORw0KGgoAAAANSUhEUgAAAMIAAAHaCAYAAABSE5ZzAAB23UlEQVR4nO29eZAcx30m+mV3z0z3DK4ZkLgpESdBXLxAAhJPEZRpSlxLK0pr6rC0XuuyXqzPiNULr+33nu2NDe6zJe86wtq19LwrWVLIXFEWKUqwLJLiJQokQYogCR44eQ0AkZyDBGZ6ju7O90d1VmdW5V1Z3T0AfhFkYbq/+vqX1/dlZnVVE0opRU5Rr9dx6tQpTE5M4uSpk6jN1kBBQUAiAAFAW0dCCCil0bGJO+3xCdxpgSdEwGXBF0tF9Pb2olwuo1wuo6enx6c... | [
"90°F",
"105°F",
"75°F"
] | null | 1 |
math | grade-2 | ordinal-numbers-up-to-10th | false | true | The first picture is a rocket. Which picture is second? first | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAjXklEQVR4nO3deXhTVd4H8G9uk7RNG9LSDdpSWtmElimbbAVFGFuRF1yghQGVRVQY30cR0dfX8RF0Zl7HGQUdF1xQQV98WVyhLEUsKJUCslOWItDSDSiUNk3TpEmavH9cGlqaPffm3iS/z/P42OUupz/9nXNy7rnnSCwWiwWEEEIIIYQQTjBCF4AQQgghhJBAQh1sQgghhBBCOMRbB7vBaEFaQSMGF2rQYKRZKIQQQgghJDh41MH+/pIRr57RO+w4775mQnmzGUfVrZh... | [
"rocket",
"moon",
"star"
] | null | 0 |
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