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-8 | identify-linear-and-nonlinear-functions-tables | false | true | The table shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAFQAAABeCAYAAAC98DOnAAAHTUlEQVR4nO2cbUiT/x7Gr2nqIp9AFMyMzUpXqy0kkJKKnlYd8kXasTnLTIow6UURFqwkJChJsiRahCOlNPGQKWZkRSU9k+EbixY+lTGV5bRUlq7td14c/jtHzuH8D3hpefh9wBd+ke91+2Gb3ruv3ahpbBIzgZlynH6QUJFCyUihZKRQMlIoGSmUjBRKhib09evXMBqN0Ol0SExMxN69e/HhwwfWeho/f/5ESUkJkpKSsHjxYqSmpqKlpYW2nyK0ra0NWVlZiIqKwpU... | [
"nonlinear",
"linear"
] | null | 1 |
math | grade-2 | select-three-dimensional-shapes | true | false | Which shape is a cone? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAANtUlEQVR4nO3df3Cb9X3A8bdk/bAU2ZIj2/hn4iS2Y0bc2EDCJYWQLezGGLmRtRtt/wC6446x/VFot7uu627r7UZ7u3LHcbejveNYWHd0yW3Hj0AYN5sFShLqQGOalCS2k8hRbDm2FOu39cvS/lCkRrYDTmzy6Pv48/rH0aNH0sfx248eP49kG3K5XG4iBSNxiMxCJocQZcdkgKoK6LDDLRYwTCRzuYGw1mMJsXh3VYNpOJ6/0GiBjavyVQtRbiKzcCYGvhQMxcE... | 1 |
math | grade-3 | read-a-calendar | false | true | What day of the week is November 17? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAF2CAYAAAAbcOzWAABd8UlEQVR4nO3deVyVZf7/8dc5bCIKyOqeGCpqiIpmisRklprZYo4zNs74nbK9vjNjP8svTdu0OGXTlDVTzbSYbZpZiZp7gWJqrrjghmiIgCgIyr6c8/sDOUIgHpTDkdv38/HoYZz7PofP/eE+9/25r/u6rttktVqt1BCXWc7y4+UcLbYgIiIiIpeui6eZ0cFu3NbBzdmhyBXAVLPAj8ss41CRlUmd3HAzm7A29E4RERERuSATUG6x8sWxMrq3NnN7B3dnhyQGZ675w/L... | [
"Thursday",
"Wednesday"
] | null | 0 |
math | grade-2 | interpret-tally-charts | false | true | Jenny washed some vegetables. This tally chart shows how many of each type of vegetable she washed. Did Jenny wash fewer pea pods or beets? | "iVBORw0KGgoAAAANSUhEUgAAAZ8AAADWCAYAAAAOwo+EAABNhUlEQVR4nO3deVyVVf7A8c/d4QKCgKIsiiumJqhpamm4ZOVWmVlWmjk2Wk2LOTWN1ZSVVtbU2FSaWpkzNvOzUnMrp3Jfy1IyF0QJlE0FBC7cffn98ciFK/deLtsF5LxfL19yn+c5z3Muy/O955zvc47MsayNA0EQBEHwl4cvIG/sOgiCIAgtjwg+giAIgt+J4CMIgiD4nQg+giAIgt+J4CMIgiD4nQg+giAIgt+J4CMIgiD4nQg+QpOW1WoAWfdnk3r37xRrohu7OoI... | [
"pea pods ",
"beets "
] | null | 1 |
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? | "iVBORw0KGgoAAAANSUhEUgAAAMYAAACECAYAAADLC1Q6AAAttklEQVR4nO2de5BU5Z33P8/p7unp6bkPIzADDiLIxfGCYIJxM1kxETbqKuStCCZG426psbY2pWwqoJJ9t0q81GZNajdrzG4lvsqqMcYl7JqAm41RlKACKpEIyqAyw1xg7pe+n/M87x/POae7h2GYS08PM/S3aur0OX36nKd7nu/5XZ/fTyilFDnkkEMajIkeQA45nInIESOHHAZBjhg55DAIcsTIIYdBkCNGDjkMghwxcshhEOSIkUMOgyBHjBxyGAQ5YuSQwyDIESO... | [
"certain",
"impossible",
"probable",
"unlikely"
] | null | 2 |
math | grade-1 | addition-sentences-up-to-10-which-model-matches | true | false | Which shows 1+7=8? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAagAAABKCAYAAADuScD9AAANN0lEQVR4nO3dzW8c933H8fdvHvaBu9SKop5sSZEo2WrUShWqoFVyKGADim9BgDQGcgjQS9tDWgTwoS6QPyBI0VN7KNAWyCWHxDB6SdACCRwYSE9OCwe2E6uxFFOOLFUURdok93ln5tfDiOKDVtyd3ZndofJ5AYJk7XJm3lrCX87szKyx1tp7XbjZhI0QAouIiMjEeQZmXXh+Bo4VwNzrWPvz9WlvloiIyJarB8C70Yz/45kC/F4lnl4iIiKTthHCrxvwf134oAn... | 0 |
math | kindergarten | count-to-100 | false | true | How many dots are there? | "iVBORw0KGgoAAAANSUhEUgAAAWoAAAEJCAYAAAC9uG0XAAAhSklEQVR4nO3dv05b9//H8ZcNHPwvx/YhIkaKSlMFFFQxJFuQikjGMnUoUle4gbL2AjoSbgBWKjp0grFBDGYrA6pAEDU1UhQXxf+O7YONwf4N/h7/iDnHPh/7nPKhvJ6jsc95CB3exsf2+fgajUajVCrh4OAAx8fHyGazYEzWNE3D5OQkpqenEYlEhB7L45zdlW4c58VisbGxsdFIJpONT58+NW6zlZWVW93/9Wix7rYtnz59aiSTycbGxkajWCw6fhyPc+tose62Le3... | [
"77",
"69",
"65"
] | null | 2 |
math | calculus | identify-functions | false | true | Look at this graph: Is this relation a function? | "iVBORw0KGgoAAAANSUhEUgAAAQ4AAAETCAYAAADH+ejgAAAZNklEQVR4nO3df0yU9x0H8PcJCgJyN51AaqGyKlBrPfBXj7K1pGlSWGdX5kwWE1i6rX+Y2GTZaNY0W8v6w7gUlyZr5/bHuhWc6S83m3bRzmVt0rVgVsOdooUWq8JsAaveUcDDct7+OO+OOw7u7rnnx/f7PO/XP4Pj8eE7oW+fz+fzPPe1BYPBIIiI0rDA6AUQkXwYHESUNgYHEaWNwUFEaWNwUEJ+vx9+v9/oZZCgGByUkNvthtvtNnoZJCgGByXU1dWF7u7uOb/+/PP... | [
"no",
"yes"
] | null | 1 |
math | grade-3 | division-input-output-tables-find-the-rule | false | true | What is the rule for this input/output table? | "iVBORw0KGgoAAAANSUhEUgAAAMkAAABtCAYAAAALS0X9AAAKoUlEQVR4nO3df0zU9x3H8edZQNDJCVqomKUOkVKKE6SixQidyywDaUUt9cdoZls6SymutIlLo+20uhiXRqU6plnNjEvrjraDDrB1dIqirEt/jLUgVOoPkCpaUBStgPDdH19RKbiv9pDPfb/3fiSXu/vel8sLjxff+3h+39ocDoeGEOKGPAAerV6lOoe4Ii9smbweLiQvbBmDVIcQwtVJSYQwICURwoCURAgDUhIhDEhJhDAgJRHCgIfqALckZBrM36jfXjsV2lrV5nE... | [
"÷ 5",
"÷ 1",
"÷ 4",
"÷ 2"
] | null | 3 |
science | grade-7 | 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 | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAWM0lEQVR4nO3deXAb55nn8W83DoI3KUrUZcmSLMu6bEWXdcRKfIxz+Eo2LueajTM7GzvZSmqqnLk2W5V1ZbMzk2SSyWQ2W7UZZ2cn45y2x7HlS9bYssY6rPsWSVkXJZES7wMASRyN7v0DJETqsJkQ7AbA3+cfCS+AxtPVwI+Np/tFG47jOC0JONUPkRRYDiIiWeE3oNwHN5fA1CAYLXHH2RP2uiwRKXRrKsB/sj99Y3oQbilNp5GISDZEUnCiDy4l4N1+MMNW+g6... | 1 |
math | pre-k | one-less-with-pictures-up-to-10 | true | true | Count the triangles in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFACAYAAACGDgu2AAAO9klEQVR4nO3dPW8d1RbH4Z0rWjpaPgKfMuFDRLi5lkxrKroEKcGuuaF0RAEkchCKC+S32HPmFia8rMTb5xyvmdlzzvOUKazxEsVP7L/kB33f9wUAAEjxn6k/AAAANonABgCARAIbAAASCWwAAEgksAEAIJHABgCARAIbAAASCWwAAEgksAEAIJHABgCARAIbAAASCWwAAEgksAEAIJHABgCARAIbAAASCWwAAEgksAEAIJHABgCARAIbAAASCWwAAEgksAEAIJHABgC... | null | [
"iVBORw0KGgoAAAANSUhEUgAABDAAAAFYCAYAAAClCwyGAAAZI0lEQVR4nO3dv29d93kG8C9rJUXSypPQooPHtpPnDJ0DdPF/0KmZAgToHyH7b2gcaZFgeoyMGskUO4BkaciS1J5SER7s0BVdQQSiSCIl3ns6XNOWXolfkveeH+855/NZCGigjh4YF+Rz38d3q5TSFAAAoBVN05R7T0vZeVzKw0UpR37aBljLha1SLr5Wyj/+sJS//34pW0WBAQAArbl32JTf/XnopwCYlh+9XsqFoR8CAACm5O7j1dd/+H4p//w3q3cPATi/h4t... | 1 |
math | grade-5 | acute-obtuse-and-right-triangles | false | true | What kind of triangle is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABoCAYAAADLhodZAAAWr0lEQVR4nO3de0DUZb7H8ffAyM0BJVZOUhRs5qqHzcgow4rVtSwqbU9iu4vWobU85qVNTU3XMs3WzMrKrMzFVtkUdYWQy+CNOBJpqLjq0RZTwku2iiJyZ2Dm/OFaalpefsMM8Hn9M8448zyfUf/48Pid+ZkcDocDERERERExhIerA4iIiIiItCQq2CIiIiIiBlLBFhERERExkAq2iIiIiIiBVLBFRERERAykgi0iIiIiYiAVbBERERERA6lgi4iIiIgYSAVbRERERMR... | [
"obtuse",
"acute",
"right"
] | null | 2 |
science | grade-6 | compare-magnitudes-of-magnetic-forces | false | true | Think about the magnetic force between the magnets in each pair. Which of the following statements is true? The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different shapes. | "iVBORw0KGgoAAAANSUhEUgAAAcgAAACBCAYAAABEgSr6AAAih0lEQVR4nO3deXgUVb438G9V9Z7udDrpJCQQEiTsguzLwKAoyqIDiDhuzKOO4zKO+I7L66sCDl7BuS7vC3PxXr2jFxEX3tErIChu41xERdFwEUSWsJgQyL51Oukl3dV1/wiJWbqT7uRUV1Xn93kenkeTTnX1eX6//lWdc+ocTpIkCYQQQgjpgFf6BAghhBA1ogIZB99//z04juvwz2AwYOTIkXj00UfR2NgY0/GWLVuGuXPn9upcfvjhB4wcORIpKSm9+ntCtE4t+Xj... | [
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is greater in Pair 2.",
"The magnitude of the magnetic force is greater in Pair 1."
] | null | 0 |
math | grade-2 | identify-multiplication-sentences-for-equal-groups | false | true | Which expression describes the model? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADXCAYAAAAgGib5AAA4YElEQVR4nO3dW2wr+X0f8O8MySFFUSRFURJFSeeya7eI3axdb7Lr+MnYTeO2D00KuG4eghqNgzw6D+mmSdEkbpMmiB8K5CFBXoMgwKa5p0gvDhwkgeG1Xcddb5zu2l7v2XMkSqQulHinSM5MH2TOmSEpiZRm5v+fme8HOFhRuyvOHM135sf/VTFN0wQREREREblCFX0ARERERERhwgKbiIiIiMhFLLCJiIiIiFzEApuIiIiIyEUssImIiIiIXMQCm4iIiIjIRXHRBxB... | [
"3×2",
"4×2"
] | null | 0 |
math | grade-8 | compare-and-order-integers | false | true | Compare the numbers. Pick the correct sign. – 6 ? – 3 You can use the number line to help. | "iVBORw0KGgoAAAANSUhEUgAAAlwAAAApCAYAAADgbPfrAAAKcElEQVR4nO3df0xV9R/H8SfIvQmKYqFF81fOaqNQFOXGdbisrVimC2ypG7M2tnK15dZqtrW11Zyr9cPlrFlTs9qcq6kNR0b+4a7GFS4oXsXYsC1CaxFojV9e7r3C948GCVzgQl7O/Zzv6/HfPffC+/3xs/fn8+ac47kJvb29vdjIgQMHSEhIYOPGjYqhGIqhGIqhGIqhGHEhyeoEbrXLly8rhmIohmIohmIohmLElagbrlAoxJkzZ6iqqmLWrFm26ThFRERExurAgQO... | [
">",
"=",
"<"
] | null | 2 |
math | grade-5 | compare-fractions-and-mixed-numbers | false | true | Which number is less than the one shown? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADNCAYAAACCVwcEAAA5yklEQVR4nO3dbVBb94Hv8Z+MEMJFAhyQH8DgB5SYAMaxqZ3Wsd0mdjdxaidppptkJnFzZ5rpi81m506TV9v2xcaduXPbdPY2mc5O1rnTJrvT9nbbzcM2D63j1LhmbcfGxoEQRzwJjHEknoSEkYSA++LoCAkkcY7Og47g93mTGmNxnO/0nH/O+Z//3zQ3NzcHIiIiIiJSxapsH4Ac4+EQDv3xD6j5zS/xtrsn24dDSbCR8bGR8bGR8bEREaVjypU72G+5e/DCuWa4A/7... | [
"9+6/7",
"8+2/7",
"9+4/7",
"8+5/7"
] | null | 1 |
math | pre-k | select-solid-shapes | true | false | Which shape is a sphere? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAQbElEQVR4nO2dXZAc11XHf7d7Zj+1q12tPm1FVnC0JjK2wQ5WXIVtoCxSFUfJAyUXRZk8UHFBVYBUgR+BBwJ5AUOoFDxg/IDyFhmo2FFCGaVSkR9sK4lTEo4dr0zJH0Ir7efsp3Znpvvy0PPRs9rZnd293X27+/we7J6eO7evZv9z+5x7zj2ttNb6RhneW4YFD6oaQbCOgoIBF471wYEuUDdWtb44n/SwBKFzTgxC4cpy8OJQF9zTH6haEGxjwYN3l2C8DGPL4Mx... | 2 |
science | grade-3 | compare-temperatures-on-thermometers | true | false | Select the thermometer that shows the lower temperature. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAQIAAAECCAYAAAAVT9lQAABoeElEQVR4nO19e1xc5Z3398wdwhxIIFeG3BPDoMZYDYNNqnWFtLq9bEBba99dgxrt7tYQjXF3m0tD0t1tTBoSt2+tbiC7b6u2AdfedhtwW220DLHGqmHI1VxmSAgQYM4Aw1zP+8fheThnLjCXM8MA8/18+BzOzLnNOef5Pd/fneF5nu9wA+cHAYcP8PJII400JjlUDKBXAssygdkagOlw8fwJbrwvK4000hgvFLOA6tygsDJXA9w0TZASaaSRxuSGwwecGQCuuYG... | 0 |
math | calculus | identify-graphs-of-continuous-functions | false | true | Is the function f(x) continuous? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AABtYElEQVR4nO3deXBU150v8G+rV+0ttFsgyZjNAgkMiMWIgAcSMyZxDBk/HL8ktufNVOJnZ5maN5VMKpWql2FSqck4eZnnJM7Uy7Od50wWTxyTAAJjdoQFSAYhiU3I1oZotVrqbvV6by/3/SF3G7G24Bx1S/p+qlKxum9/9aPVfft3T597rk7TNA1ERERERCREWrILICIiIiKaSthgExEREREJxAabiIiIiEggNthE08iBAwdQWVmJzZs3J7sUIiKiKUvHkxyJpo+NGzf... | [
"no",
"yes"
] | null | 1 |
math | pre-k | fewer-and-more-compare-in-a-mixed-group | false | true | Are there more triangles or rectangles? | "iVBORw0KGgoAAAANSUhEUgAAAKIAAAA2CAYAAABEBUJOAAAENUlEQVR4nO2du28TQRCHf2cnvrNQXgYBIpAYKS4owqPgIaEQUgERoolEFaVAdJCaAtJTUPGoQFRUlPwFPERDgwQSEiISiYC8yUPB2Bf7fBQBJ5Ev4NzN7s6R+cqVM7fWN9745nbWlu/7PgTBMAnTExAEQBJRYEJDmD8qv3uGwqPLawPpFiTbjwRfIHcmcNzKdCKxs7N23GlBYn9wLCEccfAVKhH9wuLGgcISvNGXga/dbLxeEu2HsePGm0gxtjtx8GWFvVnJ3z6OysR... | [
" rectangles",
" triangles"
] | null | 1 |
math | grade-2 | which-picture-shows-more-up-to-5-dollars | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlYAAACYCAYAAAAm2KfyAAB0hElEQVR4nO39d5hd5Xno/X9X2b3Mnt6rNKNRF+oSCJCQ6L0ZdyfxcWycOPabcn7vSXGSk9gnx4njY8exYxxObAMu2IBFFSAQQqj3OqPpve3Zs3tb7f1jz2wkSoxgJOH8ns91caGpe6179t7rXs9zP/cjWZZljWahMwkxA3QLQRAEQRAE4T1QJfAp0OyGcjtIoxnL2h+93IclCIIgCILw222NH9SOZO6DSjvM8+SyLkEQBEEQBOE3ixnQnoCRLJxNghzVc18QSZU... | 1 |
science | grade-3 | natural-resources | true | false | Which of these pictures shows a natural resource? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAV4AAAElCAYAAACszooYAAEAAElEQVR4nOz965ck63Xeif32e4nIrEv36T64AwRAAhQpkiJnmUu0NWvWssdetv9mfbO9PJYtDSVeJM5QIkWQIAEcnGt3V1VmxHvZ/rD3G5HVpxrnkBh9QwB1qqsyKzMy4n335dnPfrb8u1eqv3UNt5FfHb86fnX86vjV8b/h8abBX97DT1d4keB/eM9+H35ldH91/Or41fGr47/NcRvht67t33dt/334ldH91fGr41fHr47/dsewsUX336Wnnvj/+bd/jqoiIvT... | 0 |
math | grade-4 | compare-area-and-perimeter-of-two-figures | true | false | Which figure has a greater area? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANYAAACMCAYAAAAA9le/AAAHoUlEQVR4nO3bTUjU+x7H8c84PoAd7wUfug5GpR1v2MJGojRQEg0qZUCmQklkDCoJIuJsghZubFfcWrRyMXG1QmNaVCohgjCzEKKEHsg6J5hNPlxOLsxjoKn/u/AmVzyLo87XOeN5vzbq//fz73cWb34O+nc5juNMzEkfv0rTC9K8IwBrlOySMtxSYbr0j1TJNTHrOM+/xHssYOso/ZuU/MvXpS88qdLebUvVAVib6QXpw4w0Pif9/FVK+jK/tEBUwPpluJcakqT... | 0 |
math | grade-3 | correct-amount-of-change | false | true | You pay $1.83 to buy a red pillowcase costing $1.23. You receive the following change:Is this the correct amount of change? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABTCAYAAAClO3A3AABKTUlEQVR4nO3dd3xcZ5X4/8+900czo1HvvdqWe4kdO7ZjxzW9G9JYSgILgaVsgf0tsMACu8sCu6Ek8CVACElIt1PcHfcqF0mWZVmS1TXSSKPR9H7v74+RBpsESIIDu+R5v1552ZJnNPd5bv449+g850iqqqoIgiAIgiAIgnBFyH/pCxAEQRAEQRCEvyYiwBYEQRAEQRCEK0gE2IIgCIIgCIJwBYkAWxAEQRAEQRCuIO1f+gJ+l6IoJBJxhoeHSSQSSJLEyIiT9HQbNpu... | [
"no",
"yes"
] | null | 1 |
science | grade-3 | animal-adaptations-beaks-mouths-and-necks | true | true | Little bitterns live near wetlands and marshes. A large part of their diet is fish. The shape of the little bittern's beak is adapted to catch fish. Which bird's beak is also adapted to catch fish? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOydd9wcVb3/36fMzO4+/UmDkIQSCEWE0FEkCogCItdCt1EEFWkiKNyrcDGKKE1BBMRCtVy8AqJyqUo1BAJEQJASOoH0PGV3Z+aU3x9ndpMnjYcQQfnt5/V6Xsnuzs6cOXNm9nu+5/P9fIT33htjcM7RQgsttNBCCy200EILLfx7QkqJ1hqR57lvBfcttNBCCy200EILLbTw7w8pJbIV3LfQQgsttNBCCy200MI7A8455NvdiBZaaKGFFlpooYUWWmhhzaE... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9d7wtVXn//15lZvY+9VbKBS5SVURBRDEaUSxRLHw1wQJGoygkwViDUVM0SiwJlnwhRFFjRCwx/qISS75iiQWIDRGxooKgFIHbzzl775lVfn88a83e53KBC15FzTx6Xtyzy8yaNWvmzOd5Pp/Po2KM0TlHCIEuuuiiiy666KKLLrro4jcztNZYa1FK3dVD6aKL38rQHXDuoosuuuiiiy666KKL3/wIIeCcu6uH0UUXv7WhO+DcRRdddNFFF1100UU... | 1 |
math | pre-k | triangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJIAAACTCAYAAABlJ0ArAAACaElEQVR4nO3ZvW4WRxSA4bOff6QQCB2IJh3xJXB7vj7fgUMqGkxrgxGOP22KFVI6gvRKK0fPU+1oijnSvppmlnVd15uHmb/uZ+6OM4/rwA+dLjMvTmbePpt5fT6z3Hxb16vbvcfiKXv328zp+/tt8eZ85uLXrTL4kbvjzPWXmY8PM3/ezxxuH7cNEfEzXpxszczMfD7OHI7/2oCf8b2Zv9eZw76j8H8hJBJCIiEkEkIiISQSQiIhJBKnex5+ef04H756JS78/ss... | 2 |
math | grade-5 | acute-obtuse-and-right-triangles | false | true | What kind of triangle is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACoCAYAAADabpntAAAYZElEQVR4nO3df1id5X3H8c/hnMMBkYYOS8VJZRUrW8pa7Apm6CqmF15Xg02buY5mq1hXtD9IV91sTTQBm+CPrHYkYHMV1B1MS9IEsTjRnjgSDCH8SCcraXIlljRpoqIxKIYQfh04+4NwFJOYEJ7DAzfv1z/J4Rye5yvJH5/cPvf9cQQCgYAAAAAAWCLM7gEAAAAAkxCwAQAAAAsRsAEAAAALEbABAAAACxGwAQAAAAsRsAEAAAALEbABAAAACxGwAQAAAAsRsAEAAAA... | [
"right",
"acute",
"obtuse"
] | null | 0 |
math | grade-5 | scalene-isosceles-and-equilateral-triangles | false | true | What kind of triangle is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADOCAYAAAAEw3WqAAAqaElEQVR4nO3daXhU9d3G8TtDhjCGLEKMoiTGGASRQCMadmwAo0gUJtaWLhq0oAVjVVR8UKtYUZFW+1i6SVub1jaVq/QhkcVGyVImmESwbGGRbZIAIWwJhEC2yczzAhnAooQwM2eSfD/v4Axz7mhe3Ne5/uf3C3C5XC4BAAAA8AiT0QEAAACAjsRdsMeMGaMePXpoypQp+uCDD4zMBAAAALRbAaePiERGRurQoUPuC5dddpnuuOMOWa1WTZw4UaGhoYaFBAAAANoLd8G... | [
"scalene",
"isosceles but not equilateral",
"equilateral"
] | null | 2 |
math | grade-2 | symmetry | true | false |
Which picture has symmetry? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAXtUlEQVR4nO3dfWwb530H8O8d76Sa4otXSCtIt9Y2O6LstHZRiWgVNM4kF1mMrVaBwS4K29hQt0kcYKvXIfaGTVs7GxiiYEW8P6I0qJUCtjvMbv+gswHKCktAgsZBRQGz61ikowRVWlHdJGQmadG1+HL743wSKZHiyz3U89zd7/OPrVeeyPvyee6553l+kqZp2m+WgZkMkM4DOQ2EkCZRJMDrAh5xA59oAaTfPNC0n6d4HxYhzvN5H6C8l9E/CLQAoTY9nYSQ5kj... | 0 |
math | grade-2 | ordinal-numbers-up-to-10th | false | true | The first picture is a bucket. Which picture is ninth? first | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAfuElEQVR4nO3de3AU150v8G/3zAiQNQKBCCAp+CVAEm9wpLnJYohBCrYh2UWya8G5ZURiIFU3EltrSK4XErL2JmVMbiE5KRvsWNrKGpIbybsbg+FK2BcbV1mizBrb3JF52IbsSNgOYc2Ih62Z6b5/HM1LmkeP1D0zPfP9VFFIMz19zvyqz0+nu0+fI6mqqoKIiIiIiHQhp7oCRERERESZhB1sIiIiIiIdGdbB/tyj4vb/48bC1/rxuYejUIiIiIgoO4yog/1vlzz42Qd... | [
"crab",
"boat",
"bucket"
] | null | 2 |
math | kindergarten | count-money-pennies-and-nickels | false | true | How much money is there? | "iVBORw0KGgoAAAANSUhEUgAAAQEAAABECAYAAACBDoCWAAA/OUlEQVR4nO29d5ScZ333/bnr9LozW7V9V9rVqq2K1QUyRm7YxkBoCfAmtCRPnpAQJ5DH5IWEJIdDSQhvEhI/EIgJ1cHGuOFuS7LVLK3VV3V7r9Nn7vr+MTs3Eggj2ZI3WPqes0fSntXO3Nc139/3d/3aJdi2bXMN13ANVy3E+X4D13AN1zC/uGYEruEarnJcMwLXcA1XOa4ZgWu4hqsc8pV+AdsyyWWzZFJJ0qkkidlZsrNTZPIFRCAQiRIIl+H3+XD7fIRCYRRVRRA... | [
"12¢",
"8¢",
"9¢"
] | null | 1 |
math | grade-3 | select-figures-with-a-given-area | true | false | Which shape has an area of 6 square units? The shapes are made of unit squares. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMIAAABoCAYAAACjZi+5AAACK0lEQVR4nO3cu27UQBiA0bObCxIE6EApKSCPkJI8AI9LD7S8QQgSJaHNZaWEXZnCigTUEFvZ71S2XMwveT5NN4thGIbzW76uuNywHiQP3u6Cpzu8fszLfRbnN8Pw+WLqsZLpHD9j92w1vhzuc/RkrCR56C43nF7z/ZYvK5YX6/FDEWSbPN0Z9zxcbVhufvuQbJO7Pf9zYDntKMk8FEKiEBIUQoJCSFAICQohQSEkKIQEhZCgEBIUQoJCSFAICQohQSEkKIQEhZC... | 1 |
math | calculus | determine-one-sided-continuity-using-graphs | false | true | Is f(x) continuous from the left at x=8? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAACLDElEQVR4nOzdeXxV5Z0/8M85527Z941AAoigIKDIIltdC1bcQK3WqdbWaWuntp3+ZjrTcdrOtGMdp+vUWqudtmpbW5W61SUiCgIGAYkQICBLgJAQsm/35i5ne35/hAQiWy6cJ+cm+bxfr75sbu753g/n5J5875PnPEcRQggQEREREZEjVLcDEBERERENJ2ywiYiIiIgcxAabiIiIiMhBbLCJqJ9Vq1Zh7NixWLJkCQDghhtuwEsvvXTS5xqGgcsuuwwbNmwYzIhEREQ... | [
"no",
"yes"
] | null | 1 |
math | kindergarten | introduction-to-symmetry | false | true | Does this picture have symmetry? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAAAaCUlEQVR4nO2daZAkR3XH/5lZ1ed098zu7OzOXjO7kjDoWEleLFlC5hI6CCxhZIkQFpKACBMhIkyYsLkcgNdgIvwBJCKIgAA7MIQQYCQEkgGBDEZokcTqAGklrQ6vVqs9ZmZ3rr6vqsr0h57pufqo7ro6e/L3aaa7Kiu7qv758r3MfAkoFAqFQqFQKBQKhUKhUCgUCoVCoVAoFAqFQqFQKBQKhUKhUCgUCoVCoVAoFAqFQqFQKBQKhULRGBJ0BWTkje+//RvZo69dX8l... | [
"yes",
"no"
] | null | 1 |
math | grade-1 | interpret-bar-graphs-ii | false | true | Jen went to the local hardware store and bought some hammers, nails, tape measures, and screwdrivers. She made a bar graph of the items she bought: Which item did she buy the fewest of? | "iVBORw0KGgoAAAANSUhEUgAAAnIAAAFfCAYAAADK9CHgAABjVUlEQVR4nO3dd3hUVf7H8fedkp5MQgohlIQqINKbKF1UEMWCsuiiWLErrF3Xsupadi2oqBQVdbGwumBZV0H5ATZQepceWmghfSZT7++PSASlBZLcSfi8nifPk5m5c+/3Xobkk3PuOccwTdNERERERGocm9UFiIiIiMjxUZATERERqaEU5ERERERqKAU5ERERkRpKQU5ERESkhlKQExEREamhFOREREREaigFOREREZEaSkFOREREpIZSkBMRERGpoRTkRERERGooBTk... | [
" nails",
" screwdrivers",
" hammers",
" tape measures"
] | null | 2 |
math | grade-6 | nets-of-three-dimensional-figures | true | true | Which figure will this net make? | "iVBORw0KGgoAAAANSUhEUgAAAK4AAADNCAYAAAAhbEsaAAAL7klEQVR4nO3dT2wTVx4H8C8blCACsZEgQTLkDwsSKEEQKu0SLrHFSu0FYl/IJhIFS845Y+2p5ZDxoeRUebxXUsm5kG1Pk/bCHqpML4StVBSUVq1UhF5IIzVVpTj8kUgFyh7SmeZvmThjO7/n7+eGcZgX8tXL7/c8896e5eXlZRAJ85dKD4CoGHsrPYBS27NnT6WHUHbV8EtU6xm3GkMLVMf3rf2MCwB/++JflR5C2Xx95eNKD6EstJ5xSV8MLonE4JJIDC6JxOCSSAw... | null | [
"iVBORw0KGgoAAAANSUhEUgAAASoAAADNCAYAAAAPDD2hAAAhz0lEQVR4nO3df1RU573v8TfBgAuEGe9FMQX5YU2PFBJEzzGS0xSmto13tQZIejWYWuAU29N10zCkq12JppfNOf7ISm8vM7n546ShzVhvNfHmxxDb1eS01m3apTZtzHjRaE+8sP3BKoirDogutVLuH+Pe4acOsIfZs+f7WqvLlsDMY8d8fJ7v/j7PkzA0NDSEEDEmISEh2kMQM+iOaA9ACCFuZ1a0BxBp8fg3r0yShd3YekYVjyEF8fv7FvZl+xkVwIq934n2EGb... | 0 |
math | grade-5 | identify-rhombuses | false | true | Is this quadrilateral a rhombus? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADHCAYAAAAjzCRiAAAhJklEQVR4nO3de5CV9Z3n8c/znNPnnL7R3YCNhOWiQLwiIDe5ejcGgxkn7ggkbiabWVO7otmtVbcqRSomM2VqRsuK2d2qGXapMmFnSkdNJhkkBsGJgiDYTXMHRYH2QtM0DX2hu8/teX77Rzenb6B0c57znMv79d/vKc9zvqgUn374/J6fZYwxAgAAAJAWtt8DAAAAAPmEgA0AAACkEQEbAAAASKOg3wMA2eLQoUN6+eWXdfz4cQWDQU2ZMkUrV67UhAkT/B4NAADkEIt... | [
"no",
"yes"
] | null | 0 |
math | grade-2 | write-subtraction-sentences-to-describe-pictures-up-to-18 | false | true | Which subtraction sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAfQAAABkCAYAAABwx8J9AAAVFUlEQVR4nO3deWyb933H8TdJSaQsSnasw3EuNY4tObXr2PKkVjnaVGkL1M7RxE6G1g0gdGuLbViHbthWYBuWYsAGtBu6ds3SFiiqtHCLNHGTzE3azvEZu2qVTGkOH5Js2XFixzqsmDop8dofFClRfEg+4u1Hnxcgi3z4HL+P6a+/fPg8fGgLhUIhRERE5KpmL/QAREREJHNq6CIiIhaghi4iImIBauiSV72nzxZ6CHHSGZNy5I5yFBflKC7JxlSSx3HIEtexew+dXd2... | [
"13 − 8 = 5",
"12 − 9 = 3",
"12 − 8 = 4",
"13 − 9 = 4"
] | null | 1 |
science | grade-3 | identify-plants-and-animals | true | false | Select the plant. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADeCAYAAABL7FARAAEAAElEQVR4nOz9SbBtaXbfh/3W1+zmNLd9bb5sKquyKqtBodAQBECChERasOgIWhJJhyV5ookjHOGB5YmnHtgTRUihgT1wuBFFmyEqaJsOWXaYHcAGJBqCaKsKqKwmu5f5uvtud7q999es5cF+oCbFCNA5kSOwRxk37rv3npPrfN9a/27Jb9yavbuEteePnz9+/lv5bCu8t4enCU4D/NzJ/HX3x4X7x89/25+1h3eX83/v6n/zdffHhfvHz/8/PH9Yp9n+m6+FH/a... | 2 |
math | grade-8 | perimeter-and-area-changes-in-scale | false | true | Look at this square: If the side lengths are tripled, then which of the following statements about its area will be true? | "iVBORw0KGgoAAAANSUhEUgAAACwAAAAOCAYAAABU4P48AAABq0lEQVR4nO2VsYrCQBCG/xyH0dVCEMHOWChYC3kBBRshImilja3poi9glcZKtLBRxF4Q8hIWWoloJTaKBCuRmMK5LuiFMyp3Hgf3dTP8s3yzLCxHRIQ/xNtvCzyKJazrOorFImRZtoV0XYckSWCMIRQKQVXVl0peQUTU7XYJAAGgSqVCnykUCiRJEm23WxqPxxQMBknTNFvuFeCyUBTFJmwYBvE8T7PZzOpVq1UqlUpfHhoIBEhRFIrH4+T3+6lcLtNwOCRRFMnn81E... | [
"The ratio of the new area to the old area will be 9:1.",
"The ratio of the new area to the old area will be 1:4.",
"The ratio of the new area to the old area will be 27:1.",
"The ratio of the new area to the old area will be 4:1."
] | null | 0 |
math | grade-2 | which-bar-graph-is-correct | true | false |
Helen went to a petting zoo and saw eight donkeys. She saw the same number of pigs as donkeys. She saw fewer sheep than donkeys and fewer ferrets than donkeys. Helen made a bar graph of the animals she saw. Which is her bar graph? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAeUAAAEOCAYAAAC3sw8jAACGw0lEQVR4nOzdeZxdZX348c/Zz93v7JPMZLInkIQlJCCrsrigYrCi0qq/arVaKPyoCwWta/mJRalarK1bcZfWWpWqdV+AsEUChC2BhOyZyax37nrW55zz++PGIGULkLkzE57368WLufec85znPJm53/vsSpIkyXAAjzpQi0AkSJIkSZI0xXQFchosTUOP2XxPGfaT5PfV6c2YJEmSJL2QvSgP3Sbo25zmG3NMWJ5pRm1JkiRJkqZWLYJHGrA/gK1OMyirVdE8KAO... | 0 |
math | grade-1 | compare-sides-and-corners | true | false | Which shape has more corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALgAAAC4CAYAAABQMybHAAANP0lEQVR4nO3dSXBc1RUG4P/13OpuSS3JmgkyWEYiDp7wgOUixpQJkGAwBkGKLMgi2YQNi2RBFYSEKhbJgg0rskgWSSXYgAtTYMoUhrgs2wiPYCPZMkhE89DqlnoeXxbtVhkjIz1L75737jvfxuWy6Hts/ro6fXXPa0VVVXUsA1xJANE8kFPBmGk5FCBgB1rLgDoXoIylVbV7lrosxpbflnLA0Zco/qbBBdzhK6afMbOK5oFLcWA0A1xOALbZXPEPONxMBgF7Mcs... | 0 |
math | algebra-2 | factor-quadratics-using-algebra-tiles | true | false | Which area model represents the factorization $6 x^{2}+11 x+3=(2 x+3)(3 x+1) ?$ | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAXIAAAE4CAYAAABG53gDAAAQsElEQVR4nO3cf2zVd73H8df5VWhPaQs90JYWywoMxo9Jy3YxFRE3yGAbRhz+gZkjUWOmsO2aeINc7k2MmhH/cLlqNCE6TDQL2QZb3A8Y61AGCk66U+ighQGV2p8rB0u7HrrSnu/3/lFoaKAIped+z/ue5+Ofcr6FvN85JM9+zvcc8Lmu67Zfls5ckj5OSAOuAAApLOiTJgSkWVlSQYbka+9z3b91e70WAGA0FudIwdOXBh8UZUizw4OVBwCkro8T0qm41HZZ+vC... | 3 |
math | grade-7 | classify-quadrilaterals | false | true | What name best describes this shape? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADpCAYAAAAeakAkAAAbS0lEQVR4nO3df4zU933n8dd3ZnZ+f3d+7HoxXmMg2M6qMi3Utjg7AewA3rWbS91fd+o5in1N1bSK7+SL2pNyvepy12uqKpGc6hK1rtrU9smt2sZRLteQ3foXhhw+C3yQBFUbx9hgWAML7Pz4zuz8nrk/BgawF5jver7zY7/Ph2QNDHj3LfH94z2ffX/eL6PRaDQEAAAAoCM8vS4AAAAAWElosAEAAIAOosEGAAAAOogGGwAAAOggGmwAAACgg2iwAQAAgA6iwQYAAAA... | [
"rhombus",
"rectangle",
"parallelogram",
"square"
] | null | 0 |
science | grade-5 | match-chemical-formulas-to-ball-and-stick-models | false | true | Select the chemical formula for this molecule. | "iVBORw0KGgoAAAANSUhEUgAAAV4AAAFCCAYAAAC5P7X6AABkcUlEQVR4nO39ebwkVX3/jz/Pqer17nNnYRYY9gFkX8UNEBAQ4hY31LgRE4PKJyrGJfl8/H3y+zyMRpG4xCRIjIhrUKMSxSAgOwgCIjszwzr7zJ27dd/eqs75/lFV3dX7crt77sw9T+i53dVVp05X1XnVu97nfd5HaK01BoPBYOgbck9XwGAwGBYbRngNBoOhzxjhNRgMhj5jhNdgMBj6jBFeg8Fg6DNGeA0Gg6HPGOE1GAyGPmOE12AwGPqMEV6DwWDoM0Z4DQaDoc8... | [
"BF3",
"B2F4",
"F3",
"B2F4N2"
] | null | 0 |
math | grade-1 | identify-faces-of-three-dimensional-shapes | false | true | Does this shape have a triangle as a face? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEnCAYAAACT/zRUAAAmxUlEQVR4nO3dSWyc6Z3f8V8t3ClSEqmFFFdRC0l1t9SL3It7cXer1T0TJLkkhwDJ5DJzm0OAOSSH5BQguWRizDjIYIJkkhjJIQEMGEgcD9Jexu3xdGZge8Z2S7KWXrS0yOIussgii1X15vC8b1VxVZH17vX9AMRbLBXf95F0+enR//n/E5ZlWQIAAADgimTQCwAAAADihIANAAAAuIiADQAAALiIgA0AAAC4iIANAAAAuIiADQAAALiIgA0AAAC4iIANAAAAuCgd9AI... | [
"no",
"yes"
] | null | 1 |
math | pre-k | tall-and-short | true | false |
Which pipe organ is shorter? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAGgAAADdCAYAAABXGzdnAAATgUlEQVR4nO2deZgU1YHAf1V999wHyDUKEiTKZQ6DiH5ko0lgsxtiTILRbEzQ4H4mbsRjE41fNOqXLxuIMZosiEZN2CWD4howZIxGPo3OgDIxCj2DAwMM9Nxn30d1ddf+0dAzA8MM9DHzGN7vn6mr33tVv3pHvXqvRjEMw2jXoDEE/jjoBpIxxKxAgQlmOeE8KyjtUcN41zfWyZIMxcJCMB8IJVcmW2F2XtKeZOzwx6EhCG0a7A+B6tOTO6QcMSgwJV0ABOKgxgf... | 1 |
math | grade-5 | parts-of-a-circle | false | true | What is W? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADICAYAAACdx5VnAAAkbUlEQVR4nO3deXhV9b3v8c/emRMykZCEMQlhHkTmSQoioFRwOHiUWioVRWSw2vpgj5b2uef21PZ47rktR1CUQdBCpb0WLGKpyFSxKRIBSRjClDCFkDlk3MnO3vePwMoOECYha+2d9+t5fFxr7SGfkPXHJyvf/Vs2t9vtFgAAAACfYDc7AAAAAIDbh4IPAAAA+BAKPgAAAOBD7DabTdu3b7/igREjRqht27ZXHM/OzpbNZtOSJUu0bNky2Ww2OZ3OOx70scce07hx427... | [
"radius",
"center",
"diameter"
] | null | 1 |
math | grade-2 | match-analog-clocks-and-times | false | true | What time does the clock show? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEJCAYAAADhBFPCAABNJklEQVR4nO3de3RU9b0//Pe+zCWXmSQE5JIo1woJLSC2JGql/VWDq2J9nmNoj1RPe9DT2q51PMFVsM9aLXQJ9o8KXYJ2rVb9Ce2pVVuJz7Os2J9Eetq0SKItApWJWAggEwOGkGTnNpc9ez9/TDJkyFy+M5nJXPJ+rcViLt+Z+Rpmm8/+7s/385FM0zRBRERERER5Qc70BIiIiIiIKHUY4BMRERER5REG+EREREREeYQBPhERERFRHmGAT0RERESUR9RMT4CyQMAEAib... | [
"4:15",
"4:30"
] | null | 1 |
math | kindergarten | different | true | false | Which is different? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAAEkUlEQVR4nO2dv3PaSBzFnwApNkbODMzcjdJAc7hxGlMkpHGauCKNaTL5TzNpXKdNmthXyE3sK0hhMDMGK0pBFHMa8yMGI+2+9+mwQOz4s9+3K+9KduI4ji9HwL9DoB8BtzGERZQcwC8C/5SBvz3AubyJ409XWTdLbIIXu0DpbDh5EXjA3s6kNwh76EfA12vgYgScDoHC1e3kgGTbiV+cuAWAQQQUoqkDwk4St+MYKGTbFLFpJJwMCSdDwsmQcDIknAwJJ0PCyZB... | 3 |
math | algebra-1 | model-and-solve-linear-equations-using-algebra-tiles | false | true | Which equation does this set of algebra tiles represent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABiCAYAAABqHaQ/AAAKaUlEQVR4nO3dX2iV5wHH8d97zonRnDUqS9IkbZXFsjYpG8Siq3S72KRMd+EGx5XcDgruYt1VcFC622LuhCIZg0IpY7hp9KpwiAy7pq2NokFnk3UjumRZ/pwTPfEkMf/O+z67SAxIqsnR533znvd8P+DFOYT3+8ab5xc4eeMYY4wAAAAAWBHb7BsAAAAAooSBDQAAAFjEwAYAAAAsYmADAAAAFjGwAQAAAIsY2AAAAIBFic2+AeBR3EyXzOyA9es6yWbF61L06JVUDwB... | [
"2x+7=27",
"2x+3=27",
"2x+7=19",
"2x+3=19"
] | null | 2 |
science | grade-3 | use-data-to-describe-world-climates | false | true | Which statement best describes the climate of Cape Town? Hint: Summers in the Southern Hemisphere occur in December, January, and February. Winters in the Southern Hemisphere occur in June, July, and August. Cape Town is a city in South Africa. It is located in the Southern Hemisphere. It has a mediterranean climate. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAALOCAYAAACTXGSDAAEAAElEQVR4nOzdeXxU9b3/8deZmez7HkISwhJCwhISlkDYQRBFdlyoWlHrVVtvubd6W1vtbW8X2197tbcuba/XVtzqgoLIElQQwqKELSEEEgghQMKWhezLrN/fHyGHhAQMMskE/DwftSRnzsz5zMzJzHu+8100pZRCCCGEEEII4RQGVxcghBBCCCHEzeRbE7AzMzPRNA1N00hNTXV1OeJbaMWKFWiaxsiRI51ye01NTfzhD39g1KhR+Pv74+HhwaBBg/jZz35GZWWlU45... | [
"The summer months have lower temperatures than the winter months.",
"The winter months have more precipitation than the summer months."
] | null | 1 |
math | pre-k | fewer-and-more-compare-by-counting | true | false | Which group has more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAALGklEQVR4nO3d34tU9R/H8dc5Z2Z2V1sX95d98Uewun6j8AeJlQYFRZaGChkI1Z/gRWA3gaQFdeV9F3UlQYVYmDdpKEYgpJBaVv5aQ1DWX7varu46P875fC+2/Fa2ubPunPec+TwfVy67zOclO08OswNnAuecu1SSzo5Iw7FUcQJQI7lAao2k3mnSrIIUXCo6d3jIehbgnydmSLkzI2Nf/Kcg/Xf6WJ0AamM4lk7dkvpL0ukRKRyqjH2D+IDaa43GWpOkm7EUxn/... | 1 |
science | grade-3 | identify-minerals-using-properties | true | false | Select the one substance that is not a mineral. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEGCAYAAAD2aACLAADHf0lEQVR4nOz9ybNs2ZXeB/52dxrvbvv66AOBABJIAJlMMjMlspSUSSpRUslMmpSVaqJZzeqPqlkNaqQBZUajlRkpkZKRFJNEDwSiff3tvD3d7jTY57j7ffECIJnxMh7Bu8I87n3ufr0966y1vvWtb4l/tojxwzFMFTd2Yzf272ArD7/cwJMOjjT87cN0vbxxrBu7sb+aTRV8OE6/r/3uennjWDd2Y391G/zIxt11+pt5Kf+hWXjhZ/yK+wkimhAhiq96nID40t8... | 2 |
technology | grade | web | false | true | What meaning or function is usually associated with this web interface symbol? | "iVBORw0KGgoAAAANSUhEUgAAAV4AAAEsCAYAAACLwdvQAAAL30lEQVR4nO3dP2xV1x3A8R9V1dqlKPIfkLBYgCgdYgkhmanq2B2BGDJkQmLq1C3p1KGwdcoUKVOGDJYRU5fMVQdbQpbSSqlSW5Uso9L3nhURisPiDuXRgA2+ts/93Xfv/XymKNjXB67f18fnnnfvqb29vb0AIM2Pmh4AQN8IL0Ay4QVIJrwAyYQXIJnwAiQTXoBkwguQTHgBkgkvQDLhBUgmvADJhBcgmfACJBNegGTCC5BMeAGSCS9AMuEFSCa8AMmEFyCZ8AIkE16... | [
"Paste",
"Calendar/Event",
"Copy",
"Print (preview)"
] | null | 1 |
math | grade-7 | parts-of-a-circle | false | true | What is I? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADICAYAAACdx5VnAAAhpElEQVR4nO3deXxU9b3/8fdMZjLZN7KwJCQhyA4CQhTBCmpArQut1t57f2qr15+21iv1Wmy16vXRen/2YWvd8LZV23L1561LUdGqWH4QFi2yCDFsooRASELIvm8zmfn9MXBmRiCALOfM5PV8PPLIOWfOJJ/JnD/e883n+z02n8/nEwAAAICIYDe7AAAAAACnDwEfAAAAiCAEfAAAACCC2G02m1atWnXEAxdeeKGGDBlyxPG9e/fKZrPp97//vV588UXZbDZ5PJ4zXuj... | [
"diameter",
"radius",
"center"
] | null | 2 |
math | pre-k | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 3 − 1 = 2? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARIAAABKCAYAAAB3ndsNAAAQ4klEQVR4nO2dWWxc13nHf3edO0POkBQXibIkaLHkRVJsUTYlpomTOkFkNXGD2orcWo7MFmiQtHko+tLHukCLFuhjkaIPQUHHVlPbcmwkVb0AjuMgNS3akixZVqzFtGRtlLiIM5zhLHc5fbic4ZCcoSgNZ6PPDxhQ595z7/3+0He+e865Z1GEEGIoA+cmYcIFRyCRSCTzoisQ1mBjCJaboAylhRiIVdssiURSr+yIgH520k90mnBXgx9lJBKJZD4mXDidgKsZODM... | 1 |
math | kindergarten | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 9 − 2 = 7? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAagAAABKCAYAAADuScD9AAAQHklEQVR4nO3dbWwb930H8O8dnyXq2ZLlyI4fFMeN44fYAeQobbbEiLsOS5YiCZoOQTujQ4EV2LBlSLdgHRpsKLYX25sNzdCuaZrGdpFsCfJQNwvStCuWBz/FSu3YSWxHcvRgPZKiSN4d7/n2ghYpSqSshzvyjH0/byySR/r3NQ189T/eHQXHcZxxHfhUAbIWYDogIiKquqAANASArXXA2jAgjGuOczJT67GIiIiK9jUCwUtK/sa6MLCtPt9eRERE1Za1gAsyMKY... | 3 |
math | kindergarten | cylinders | true | false | Which shape is a cylinder? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAPZElEQVR4nO2da2wcVxXHf+tXbMeJt7GJkziNjUoc05akIoS0IJKqPCoQJf0ArRAlIMpTSDw+wBdEJR6fqBCiXygtLWraIvr4UhdEy6tNEG3aJhUOahMnfcQ0aWwalzh2HD9iLx/Ojnd2bGdf9+7cmTk/yfLu9Z2Zu+uzd87/nHPvpjKZTGZoGl6ZgLFZuJBBUZyjLgUramFjM3Q0QGpoKpN5/mzYw1KU4tm+EuqOTciTtQ2wablYtaK4xtgsDJyDU9NwdAJqzl6... | 2 |
math | grade-8 | apply-multiplication-and-division-rules | false | true | The number line shows an unknown number, q. Is 2 q positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGdklEQVR4nO3dXWhb9x3G8edI1rEry9iCOmMrNg5sMNSkboij2CGsge1mhLQoZIzchDBYICHsYjdh0FwlpORid8lYINtF1pjANofOsJerIYcVSY7z0oq4sAs5cUsXu269Ta7edXqhFyIix91s6S9Z38/V8TnH8MDRxcOf3/kfy3EcR0Abm5yclGVZOn78uOkoaBKeOQCglXWZDgBs1uLioukIaDKeOQCglX3tgp3L5TQ3N6doNKodO3awcgQAQIcrLr+n/Kfvykk+lJN... | [
"positive",
"negative"
] | null | 0 |
math | grade-2 | greatest-and-least-word-problems-up-to-1000 | false | true | A hot dog stand kept track of the number of hot dogs sold each day. On which day did the stand sell the most hot dogs? | "iVBORw0KGgoAAAANSUhEUgAAAXUAAAC9CAYAAABMMe2lAABGTklEQVR4nO3deXwM9//A8ddu7kOuJuKOWygigqojKIq6bz83bRVFnBVHUUelrrrqKIr2K26CVESp0JJQKkLdIREkiEhE7s3O74+VSVYOOeXweT4e83hkZz4z857szns/+5nPzEfReeZRCUEQBKHY81zUCV2AMQPaFnYsgiAIQh6s33USAGUhxyEIgiDkI5HUBUEQShCR1AVBEEoQkdRLkFfJEp8HxzMhJJ5XyeL6tyC8j0RSLyZ8Y5Jxj0jKMllfjVfzJEnNvQQ1K58... | [
"Wednesday",
"Friday",
"Saturday",
"Thursday"
] | null | 2 |
science | grade-3 | natural-resources | true | false | Which of these pictures shows a natural resource? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAV4AAAElCAYAAACszooYAAEAAElEQVR4nOz92ZMlS5Leif3UzNz9LBGR6817b229AOgecsBF+EIRCkmZEeEb/0z+F8OHAUkAAxBAYxt0SzeArkY10JiquksuEXGOu5uZ8kHV3P1ERuTN6h4I56G8Km9EnMVXs890+fRT+SfvVP/wCNeR326/3X67/Xb77fY/4/ahwJ/ewX+e4EWC//Nzez38FnR/u/12++322+2/zHYd4Q+P9vttWV8PvwXd326/3X67/Xb7L7c1jJ11fS099sF//9//P6glU2s... | 2 |
math | kindergarten | addition-sentences-up-to-10-what-does-the-model-show | false | true | Which addition sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABUCAYAAAC4PkCPAAAQgklEQVR4nO3dW2wc133H8d85M7M7eyNXpiRTpCiqtizZdV01kgHbD4oeCjiFE8AuYgR5i4EAyVvz2IeisIsCdfrYAgnymKJA+pQ8FQUSIC4KR44LFHbdyG1s+SaJpG6keNnL7M7lnD4sVyQliuaSM2eGM78PEMAklnvmqwGyf8zunBVaaw0iIiIiIoqFTPsAiIiIiIjyhAM2EREREVGMOGATEREREcWIAzYRERERUYw4YBMRERERxYgDNhERERFRjDhgExERERHFiAM... | [
"5+2=7",
"6+2=8"
] | null | 0 |
math | grade-2 | names-and-values-of-all-coins | false | true | Which coin is this? | "iVBORw0KGgoAAAANSUhEUgAAAMMAAADDCAYAAAA/f6WqAABy6UlEQVR4nO29fUxUd9o3/uk6geABQ+p0jCV3Zk5f+GM60KIi9SUp8LTYLIxmX1rstmmU3K3eKeKuj8lN4+6v8dk15U6MbdXmtts7aIxtoe3uRoFNtX0AE61FVFoY5w/aembyBI3HoSHCgYyh6e+PM9c13/Odc2YGBWu7XokRmJkz5+V7fa+3z/W57vnhhx9wV+7KXQF+8WOfwF25K3eK3FWGu3JXEnJXGe7KXUmI68c+gZ+zfP/99zcdkE1OTmJiYpx/z88vwPz58/n... | [
"dollar coin",
"penny",
"quarter",
"dime"
] | null | 2 |
math | kindergarten | count-sides-and-corners | true | false | Which shape has 4 corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAGqUlEQVR4nO2dXU8bRxSGjyGgNiXtRaVWvajUm7Y/IT+gPxwEIRJISSS4CU0jlSvoxdp4/bF417vTiyUKIQZ77Zkzc855HylSwFgs8MjenX3PvD3nnLsuif6ZEo1qorkjADbmWY/oxTbR78+Jft4l6l3PnDvNYx8W0MzL74mefZi2H/yyS/Tnd62FAGzKqCa6mBBdlUR/T4m28nn7ACQDPnmx3TpFRDSuibbqew8A4JNPTlWOaCvuoQArQDTAAkQDLEA0wAJEAyx... | 1 |
math | grade-8 | identify-alternate-interior-and-alternate-exterior-angles | false | true | \line{QS} and \line{TV} are parallel lines. Which angles are alternate exterior angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADSCAYAAABw17dKAAAf3ElEQVR4nO3dfXBU5d3G8WsJCY2h3WQCJmFBAolCQWoQqoCOmzjBoWIhOMrwNhJeqiJBto5YEGlo7aPjS2mUKDCThtARjJ10si3JiBogqVaosLCIRpENhgiyC0J2a9IUQuD5w5IxhfCS3c3ZZL+fmZ3Rc+A+F3/scPHLfc4xnT9//rwAAAAABEQPowMAAAAA3QkFGwAAAAggCjYAAAAQQBRsAAAAIIAo2DDcoUOHZDKZWj89evRQUlKS7r//fn3yyScBu47X69Uvf/l... | [
"\\angle{QRP} and \\angle{VUR}",
"\\angle{QRP} and \\angle{VUW}",
"\\angle{QRP} and \\angle{SRU}",
"\\angle{QRP} and \\angle{QRU}"
] | null | 1 |
math | kindergarten | count-sides | true | false | Which shape has 3 sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAHzElEQVR4nO2dvW8UVxTFz+wHNv5aiBCxEwEGia8CEhPJbtPlD0iVJlKKCP6KuEAUNFQpiJASiSYSUgo60rlDoqDCkc0axSQBHMsC4fVa2J6Zl2JYQYgTZ3beu+/Om/PrLGtnnt47c8/M2Td3I2OMWdkGljaBTgLEBoQUphEBo3Xg5BDw/j4gWtky5t6672GRkJkZAxrtzeyPiX3A6eFMhYQUpZMAi13g2TbwcBOorcfZPygyYpPReqYpANhIgFry1j8IsUlPUzs... | 1 |
math | precalculus | find-limits-at-vertical-asymptotes-using-graphs | false | true | The graph shows f(x). The dashed lines are vertical asymptotes. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AAChMklEQVR4nOzdeXxU9b0//tfskz0hCUkMEPZokLAJihBFpYpLVWwpLl201m62tr3t/dbui9T2d1vb21a9trdesbW3Va5rwYioUTAIgbAmbCFACITsmWT2M2fO+f0xmQmBLDPJOZlzJq/n49FHajLzzptkcuY9n3l/Pm+DLMsyiIiIiIhIEcZ4J0BERERElEhYYBMRERERKYgFNhERERGRglhgE40j7733HqZOnYpbb7013qkQERElLAM3ORKNHytXrsRnPvMZfO5zn4t... | [
"$\\lim _{x \\rightarrow-3^{+}} f(x)=\\infty$",
"$\\lim _{x \\rightarrow-3^{+}} f(x)=-\\infty$"
] | null | 0 |
math | pre-k | fewer-more-and-same | false | true | Are there fewer marshmallows than mugs of hot chocolate? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEECAYAAAASx0PMAABdYUlEQVR4nO39eZRkaVrfeX7fe6/tvruHu4fHvmVsuVVlbUkVFFSBKEogkFikQ8PQGmjNqEXrTGtGavX0tPpItM50j0DdfdSCmdZIrWb6oEECNGgAFUNBURSVVUXuWZmRGZEZ+x7hu7ttd3vnj2vXFl8i3D3MI908fp9zMiPCbbtmzzG7jz/2vM9rrLUWERERERHpCufDPgARERERkd1ECbaIiIiISBcpwRYRERER6SIl2CIiIiIiXaQEW0RERESki5Rgi4iIiIh0kRJ... | [
"no",
"yes"
] | null | 1 |
math | grade-5 | reflection-rotation-and-translation | false | true | How has this figure been transformed? It has been... | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAI1UlEQVR4nO3dXUxb5x0G8IdgYjPH5iuxoQtkSQrpFtFkhEVUI8RRWS5GpF4ka6VslSDcbJOmXmwXaxtpZlKi3OxiH1Iu9gHSpE6L1inR5kSqskTQTkGDEkc0SgJNWB3UgAOErwQbsM8uCAwTjF+bY857/D4/iQvs13+/ss+Dzzl+z5+sw4cPax6PB3pob2+HpmlgvdTrXb9+XZdaRvN4PFK/zqrVs3g8Hni9Xl0KtrS0QNM01ltHvUzB7Uquept0qUREUmPQiRTAoBM... | [
"translated",
"rotated",
"reflected"
] | null | 1 |
math | kindergarten | count-pictures-up-to-10 | false | true | How many snowflakes are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAE0CAYAAABZ4EexAACUV0lEQVR4nOz9eXAcZ5rYCf/ePOrAfQMkSAAEQJDgIRIUTx2k2K1Wq6WWunu6NTPu2ZmJddieb/19Dq/XXnsjPI6NCYdj7ZgZe2NjP294/5iZr+fY6WumDx2t7tZJHTwk3gcIEgRB4iJIAiBAAHVk5vv9kXWgUAWQlJgUCTy/CEqoqqyszKwfyOd983mfR2mtNYIgCIIgCIIgLAmML/oAHjZGJjWTsS/6KISliLglBIW4JQSFuCUEhbgVLBLgz8HT8LOjcX55Ov5FH4q... | [
"4",
"10",
"7",
"1"
] | null | 2 |
math | grade-8 | congruent-triangles-sss-sas-and-asa | false | true | Which rule explains why these triangles are congruent? | "iVBORw0KGgoAAAANSUhEUgAAAX0AAAEKCAYAAAD+XoUoAAAx8UlEQVR4nO3deXiU5b038O8z+74lISQIJMiiVJBKFRAVEMG9Wltbj7UKx/oebW1f1GPdaqvt1fPWo8XliLVXrypWq9JXX1FxAxdEkSAiAbWuQCCQkJBkZjL7+rx/PLMFEsgyM88zM9/PdXkBmUm8ieY799zL7yeIoiiCiIgqgkruARARUfEw9ImIKghDP+W//uu/IAjCUf95/PHH5R4qEdGwCVzT79/111+Pxx57DL29vdBoNHIPh4goLzjTH0BTUxNOOukkBj4RlRW... | [
"SAS",
"These triangles cannot be proven congruent.",
"SSS",
"ASA"
] | null | 0 |
math | pre-k | fewer-and-more-compare-in-a-mixed-group | false | true | Are there more rectangles or circles? | "iVBORw0KGgoAAAANSUhEUgAAANgAAAA2CAYAAAClblcfAAAGkUlEQVR4nO3dz2/b5h3H8TdJUaYk/06bH7abCKvdLChst8BQX9o6wYDlsCSHdN2lmW/uLdul/Q+6U3PLTp1PDnzqlkOTISjQoXVuAnqobRRzaqOwBsdx0kaRHUuiRJHcwaOTypIsW5ZItd/XMZL4fIjgg+fRQ5lUXNd1EUI0hOp3ACF+zqRgQjRQyO8AQjSDvXwXADe3AYAS6QJAG3y7oeMeuGDn/v0vvnr04DCzlHX26Am+/O3vGz6OR86rPs0+r3Lc1ArW/G3spVm... | [
" circles",
" rectangles"
] | null | 1 |
math | kindergarten | count-scattered-shapes-up-to-5 | false | true | How many shapes are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAAazUlEQVR4nO3daY9c53km4KcWNquLXb2wWk1ABDzIyE4AW7AB2QEoTSxYkCGEsmMyCEFAC+QP8wfyL+ZrPuQPSNACEJyxiFiSZUSWYwGRjLENW1AEBDEnMSYUwFYXe6leisVa5gPbE1nh0ss59Vafuq4fwH7qkOxzn7fe9z6l4XA4DAAAoBDKqQcAAACyI+ADAECBCPgAAFAgAj4AABSIgA8AAAUi4AMAQIEI+AAAUCACPgAAFIiADwAABSLgAwBAgQj4AABQIAI+AAA... | [
"1",
"3",
"4",
"2"
] | null | 2 |
science | grade-5 | predict-temperature-changes | true | true | Two identical blocks are heated to different temperatures. The blocks are placed so that they touch, and heat begins to flow between the blocks. The pair of blocks is insulated, so no energy escapes. Later, the temperature of each block is measured again. Which pair of temperatures is possible? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAACgCAYAAADq8hJGAAAYjklEQVR4nO3deXwcZ33H8c8zs6fuW77kI44dO3Zs0sRJIOHIVUgCSUsaeJHQ0IO2tBQobWl4AQUKpIUEWihXKYS0QCiBliTkcICkmBLncOwkduxYduRDtmxd1r2rvWbm6R8zO5KstS3bknYk/d6vl19Odlfyzj4z33me3zw7j9Jaa4QQAjCK/QaEEMEhgSCE8EkgCCF8EghCCJ8EghDCJ4EghPBJIAghfBIIQgifBIIQwieBIITwSSAIIXwSCEIInwSCEMIngSCE8IW... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAiAAAAC4CAYAAADaI1cbAAAhO0lEQVR4nO3deXwcZ53n8c9T1a3u1mHJlmX5dhLHiR2HOJmckMDkIAMJJDBkwnBN2AV2BpYFll0YeAEDDAQWQpgXDNfODscuEJZjZkNIwOEIBMgBPkic2LF8xLYSx5Zk3VefVc/+Ua1blpVEqq5ufd+vl19KWq1WdT/VX/3qqV89bQCLiAhgraUtBweHYcCDgtJBROZIzECdCxuqobkKDCpARKSoLWvZ1l/qrRCRSnfpIoiVeiNEJDoODAdfV1TB2TXB0YqIyFw... | 2 |
math | grade-7 | similar-and-congruent-figures | false | true | Are these shapes similar? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADzCAYAAAC8J2HZAABKmklEQVR4nO3deVzU1f7H8RebsrqiuTMgLimgIeCuuLRdra4tmq3azSWzRC2zujfTbC8Fs7TFUm/LzdSsa3Urtyw3wCVAzZUBFQ1QUUSIZfj9MTHKzzWd4TvA+/l48BiZOTPf99wHNz6c+ZxzXEpLS0sRERERERG7cDU6gIiIiIhIVaICW0RERETEjlRgi4iIiIjYkQpscTrDhw/n+eefNzqGiIiIyBVRgS1OJzk5mdDQUKNjiIiIiFwRFdjiVCwWCzt27FCBLSIiIpW... | [
"no",
"yes"
] | null | 1 |
math | calculus | domain-and-range-of-exponential-and-logarithmic-functions | false | true | What is the range of this exponential function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABcfUlEQVR4nO3dfXhT553n/48syc8GGxts4sQmhEAKwQQSkvLghgw0ySRpWuh0SXv1IXNltpNu07Td39W5uv213Zle+WW7O9PONpt22+x28zDb6+o22yQzgRhKCgnUNDg4YLBJwHHA2IAfhGVZz0fSOb8/qD2Yh2CTcyMU3q9/uCTO+ejr+5ZufXV0JHkcx3EEAAAAwBV52S4AAAAA+DChwQYAAABcRIMNAAAAuIgGG8A4tbW12rlz59jlw4cPa/r06eru7s5iVQAA5I6... | [
"all real numbers",
"$\\{y \\mid y<9\\}$",
"$\\{y \\mid y>9\\}$",
"$\\{y \\mid y \\leq 9\\}$"
] | null | 2 |
math | grade-6 | interpret-histograms | false | true | A pottery factory kept track of the number of broken plates per shipment last week. Which range of broken plates per shipment occurred least frequently? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEiCAYAAADDMqXnAAA3pUlEQVR4nO3de1RVdf7/8dfhAAKCoCgqoJipeb9hmooKKpiKo2VeU5vyW1pW083LTHPRb2uGxmpM08xbk30zc0wxpVRwDC+jeKFI1LyQJnLVREEF1HPg90c/zohcPOiBA/p8rDVr2Pt89v68997s5YtPn7O3obCwsFAAAAAAbMLB3gUAAAAA9xICNgAAAGBDBOz71IYNGzRlyhTt2LHD3qVIksxms6ZMmaI33njD3qVUK3PnztWUKVOUkZFR6uc//vijpkyZomXLllV... | [
"11-15 broken plates",
"21-25 broken plates",
"6-10 broken plates",
"26-30 broken plates"
] | null | 0 |
math | grade-5 | compare-fractions-and-mixed-numbers | false | true | Which sign makes the statement true?
1
9
2
9 | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACWCAYAAADkHv8wAAAJ70lEQVR4nO3dT2hdVR7A8d/TmGeLiYsm1NoU/6QLGwsziZvMqEVhSJkKJWPbjYgQIzgO2I0Lh8liOiDDgLtBaxXSikutFCpMnTKi7aLNprxip0XFFJWUaUlFiKDcQrmziKntNNVOetrzbt7ns0mal+T84J7Fl9uT+2plWZZRcbfcckts27YtxsbGco9yQxVFESdOnIipqamYnp6OmZmZiIjo7OyM7u7u6O3tjd7e3qjX65knvfE+/fTTuO++++L999+P9evX5x4HAGg... | [
">",
"<",
"="
] | null | 1 |
math | grade-5 | nets-of-three-dimensional-figures | true | true | Which figure will this net make? | "iVBORw0KGgoAAAANSUhEUgAAAM0AAADNCAYAAAAbvPRpAAAElUlEQVR4nO3dsVEjSQCG0Z6rjUIEAAGAAUFIBmSAha2CIKBkY5EBa0hBgAEBQACQxpxzohDS1fGD+uboe8+ja5nqKeZTz4he0fV93xfg0/4YegLw0/waegI1dF039BRozPsbsuZWGsFQw/vrqsmVppRSbs5eh57C/97p9aiU8vN/FsvzWGpupYHaRAMh0UCo2Wcahjfenw49hSpEQzWTgzajcXsGIdFASDQQEg2EREM1Ty935fn1fuhpbJ13z6jmanFSSvn522g+stJ... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAADNCAYAAAA13ILSAAAY9klEQVR4nO3deVxU5f4H8M8AgoIy4C6UQ5fVBVGT1NIgS+91RRO72iIorpGKEtqiMVRaiQhFaYoGbrdUDCErul4Dbxe95gKYXCEXQMQFxwWIkW2Y3x/E/CRxEpiZM3P4vF8vX/PivOA53+MZPjzPmfM8R6JWq9UgoocmkUiELoEMyEzoAoiIjJmF0AXoA//Sk65xwNV2ia4nyYAkfeD7qu0SZU8SALYuvCJ0CW1e0EYHAKZ/LhqOg9om0fUkiYh0iSFJRKQFQ5K... | 0 |
math | pre-k | represent-numbers-with-pictures-up-to-3 | true | false | Which shows 3? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAU1klEQVR4nO3deXCcd2HG8e+7p7Sr1S1LsmRZtmQb2Y6TmJyFgONAnKQktAlHCYFQOkMZynC1HG2nw7SdTIAZWiiZdhjKEQoFmqRkkoaEQCcJaQ6S2PGRQORLPmRpJa1W8q600p6//rE+JGslrWJZP3vzfGY8lvZ999338evn3fd9933fdYwxJpyC/QmIZyFjEJFzxONAyA1rAtDoAyecNOaFmO3ZEnnjubISPPsS+V+afbAumG+niJwb8Sx0j0N/CvYmwBXL5Ae... | 0 |
math | grade-8 | transversals-of-parallel-lines-name-angle-pairs | false | true | \line{TV} and \line{WY} are parallel lines. Which angles are alternate exterior angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADSCAYAAABw17dKAAAf6ElEQVR4nO3df3RT9f3H8VeSUUiVpVhWEKi2gjucILb8OrbIaCvqOT240XqGZ6MoVbuprEo9mzhxs+UP91U3XYrtkR3HIXCkG9tcwxFsPVpoUUPRwALVDo6tjYUVyMAm4ooCbb9/cOgZ45c0aW+TPB/n5By5t733BZLD63z6vvmYent7ewUAAAAgLMxGBwAAAACiCQUbAAAACCMKNgAAABBGFGwAAAAgjCKqYDscDq1bt27Art/Q0KC8vDxNmDBBw4cP15gxY3T33Xd... | [
"\\angle{YXZ} and \\angle{WXU}",
"\\angle{YXZ} and \\angle{TUS}",
"\\angle{YXZ} and \\angle{TUX}",
"\\angle{YXZ} and \\angle{YXU}"
] | null | 1 |
engineer | grade-6 | identify-control-and-experimental-groups | false | true | In this experiment, which were part of a control group? The passage below describes an experiment. On winter mornings, Wanda had to scrape the ice off of the windshield and side mirrors of her car. Her friend told her that she should cover her side mirrors with plastic bags overnight to stop ice from forming.
One winte... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAEhCAYAAAAUBJnbAAEAAElEQVR4nOz9WYxlSXrnif3Mznb367uHxx6RkZFbbVmVLBZZVc0mqW6K3ZqZFnow0xhoNNAAgiD0oyA9CtCDoAcBAwHCPIxGAgaSgMGopcaohRkMR82m2CSbRTJrr8rKPWP1cA9frvvdz2amBztm1+7x65FZpIpZFNoCHnc7qx2zv33L//s+8Y//8T/W/Ov2r9u/bv+6/Q1q/9F/9B99LucNAb7z53+AEML9SREShiFxHBNFEWWpCYKAMIwIggApZfU5JAgC2q2+2z6... | [
"the uncovered side mirrors",
"the covered side mirrors"
] | null | 0 |
math | kindergarten | tall-and-short | true | false |
Which lamp is shorter? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAGoAAADkCAYAAABwm7E/AAALO0lEQVR4nO3dXXBU5RnA8f85Z3fztVlAQmJC8AsiZLV8SCEpY+0wlSgqViDOaL2BXFS9oXhbp+1M2xsGLpxOZxy8AHpR60VwOnhhB9uOTtUJQUTTmQ0JBARCSEhCwmbztdmzpxdLMCiJ+djdc57w/G4gYfO+T/Kfs3v2ZBMMx3GczjicG4IBGxIOygN8BhRaUJEPJQEwOkcdpzHq9lhqKlUh8J0dSr1RGoCVBamKyn0DNrQMwtU4tA6BGU2k/kEjeUuhlWoCELP... | 0 |
math | pre-k | squares | true | false | Which shape is a square? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJsAAACaCAYAAAC+PTopAAACe0lEQVR4nO3Uv24UVxyG4d+svS74ly5RLgBo6big3BcXREVLSB+ntY0ljFeTYoSUmqzeRcvzVDM6OtJXvDrLuq7r9cPMX/czt4eZx3XgKC6XmecXMy+fzPx2NbNcf1nX9zennsW5e/ti5vLT/fbz+9XM66dbiXAMt4eZj59n/n6Y+fN+ZnfzuB0IjWN7frF1NTNzd5jZHf5zAMf2rauv68zutFP4mYiNjNjIiI2M2MiIjYzYyIiNjNjIiI3M5fdeXGfmjw9fjzi... | 0 |
science | grade-3 | identify-mammals-birds-fish-reptiles-and-amphibians | true | true | Birds have feathers, two wings, and a beak. An ostrich is an example of a bird. Select the bird below. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOydeZgcVbn/P+ecWrp7ZnpmkslOQkhC2BcRFEFQwA1FBAUV9Lrgvl0BUVx/Ltyr3ou7ghcRFAWXi+KCy5VFZQmyYwRkhwRCEpLM3mtVnXN+f5yq6p4sEHS8erE+zzNPMj3dVadO1/S85z3f9/sKa61NkgRjDAUFBQUFBQUFBQUF/zeRUuJ5HiKOY1sE9wUFBQUFBQUFBQX/95FSIovgvqCgoKCgoKCgoOCpgTEG+fceREFBQUFBQUFBQUHB9FEE+AUFBQU... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6cAAADMCAYAAACPx9V0AAEAAElEQVR4nOydd7wkRbn+v1XdPeHktOksu+yyKzmJoAiCAiZUEBRUMCBgxHBB8YLpGrg/5V5ETICIICqYUAyoKEnSroAElwwLy+4Cm8+ePGemu6vq90d1mjlzdg+yKlf74TOcmZ4O1dXVs/3U87zvK4wxJgxDtNbkyJEjR44cOXLkyJHj/yaklLiuy10jsFMrtDv/7BblyNEcowoeHYe1PnS78LIuu1zmxDRHjhw5cuTIkSNHjv/70FoThmFOTHM879Hu2AkUgDG... | 0 |
math | grade-4 | estimate-angle-measurements | false | true | What is the measure of this angle? Choose the best estimate. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABLCAYAAABKvvDBAAAIOklEQVR4nO3dbUxV9wHH8d+lilJQSehgG246W6MzWmJGjWFArUsUHyKmwYYrzEbqEugCtAnMKt1W2Fpca3VodUgj61SoxdR2an3qNjOoLk3prLUjGh+qRhohstz1codS4O6FlmypRcRzzv+c7Pt5Bzec/y/31ffe3HvwhcPhsAAAAABYIsL0gMFqOt6i7FXrTM8AAAAABuSJwH6yskYLip7XgxPHmZ4CAAAADGiY6QEDCQRDyl71so6dOC1J+ufnnYYXAQAAAANzbWB... | [
"120°",
"60°",
"30°",
"90°"
] | null | 1 |
technology | grade | peripherals | false | true | What kind of computer peripheral do you see here? | "iVBORw0KGgoAAAANSUhEUgAAAV4AAAEHCAYAAADmqi4lAAEAAElEQVR4nLz9S49kS5ImiH0iqueYmbtHxI1781VV3cWuBqfZJLjgLAb8odxxMQsuuSJAcDUkCBCNWRCYAUFODxrT3dPdlZVVWZWZ9xUR7mZHVUW4EBFVPcct4mb16wQc5mFudh6qoqIin3wiQv/y9/8vZWYQEQBARKCqAAAiQhNBAiGDkJXAICgBjQH7VIY2gfjniAhMZOdpgoflBIFCCPaqiga13wEsAjv8mtr8+v6atPqftd9XvAIAKaO1htYaAICZwcz98601uyd... | [
"Printer",
"External Touchpad/Trackpad",
"Docking Station",
"External Hard Drive"
] | null | 1 |
math | pre-k | addition-sentences-up-to-5-which-model-matches | true | false | Which shows 4+1=5? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARIAAABKCAYAAAB3ndsNAAALy0lEQVR4nO3dS2xc133H8e859zVPkhJlWY/AERxLiuvIcawUduxm0Y1SBPXKyMYovAqajdtAQNBVm0W7KIIC6SZonO7aRfNYxkEKdBW0DRK4FYJEahw9YKhORImSKHE47zv3npPFJS2SpodzZ+4ZDun/BxjwMXPPvb+55H/OPfelrLX2Tgw3OtBMIbEIIcRQvoK6B6cr8HgI6k7f2rfX9nqxhBD71Qtz4F/vZD8cD+FsNasyQggxTDOFq224HcO1Dui1JHtCiog... | 0 |
math | grade-7 | nets-of-three-dimensional-figures | true | true | Which net will make this figure? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAAlWElEQVR4nNV9eZhdVZXvb+3hnHPvrUpIgBSpTJWRBIg0BAE1Dq00EGjgpTEOtAQIIAqCA+JrW1u7bb/2e8/3nND+8DnwupUPX9OiICTw2YMoakNARYUgrS0JkIAkBDJU3Urdc/b7Y6+19z63KkwZKjn5bm7dW3c4Z/32+v3WdE6Rc87hIN+OOWExHn7kYXS2jYz3ruzxpsZ7B/Z0W/WhVXjw/l+j3N5Bc0ZzvHdnj7eDGpAzP3MWrv/09eHx0ONDWHTGonHcoz3fDlp... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAACzCAYAAAAE9O5jAAAuGUlEQVR4nO2de5hddXnvv+/7+/3W2nvPLQmQkJAbJIEECJSLhNaorcrVAzS1IIIgoNQKQgWrp9Zba/vUnnparVQPHG+1hYceqbSC3B7bR0WqhYAWMAkXrSRcgmZirjPZk5m9fueP323tyWRDkkn2zM77yTPs2fe19n7my3t/CYCFMGGw1uLlncBPB4FtDWBEvh1BOKBoAnoUsKgGzMgAgojkhOLlIYtHtrb7KARBAIBlvYBu90EIzTw76C5nZsAxXe7/aIIgHDi... | 1 |
math | grade-7 | similar-and-congruent-figures | false | true | Are these shapes similar? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACeCAYAAAAITX1dAABAI0lEQVR4nO3dd1xV9R/H8ddlyZIhQ1BBEHKAE82Nu+HKjVrmSsU90hQ1zb01Lc09yxTE1LCsfloK7oEiguJIcDHEAQIy7/39cfUagVkKXMbn+XjwgHvu997zPlqXj9/zHQqVSqVCCCGEEEIIkSd0tB1ACCGEEEKI4kQKbCGEEEIIIfKQFNhCCCGEEELkISmwhRAlRmxsLAMGDMDBwQEbGxvc3NzYsmWLtmMJIYQoZvS0HUAIIQrKhx9+SL169bh27RqGhoYEBwfzzjv... | [
"yes",
"no"
] | null | 0 |
math | calculus | determine-one-sided-continuity-using-graphs | false | true | Is f(x) continuous from the right at x= – 7? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAACCLklEQVR4nO3de3yU1Z0/8M8z10zuV5IQSLgjgSQQDQiCYrFotdqCdbFdtXatXW3Vtr+t3a7bdtvKsrZWW621XVurYm272npDjYiCgEEJRAgkIJcAISHkMslkMvfn+vtjSCQCksBzMpnk83693C6TPN/55pyZZ77PmfOcIxmGYYCIiIiIiExhiXUCREREREQjCQtsIiIiIiITscAmIiIiIjIRC2wi6mf9+vWYMGECrrnmGgDAtddei5deeum0v6soCi6++GJ88MEHQ5k... | [
"no",
"yes"
] | 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? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAACMeUlEQVR4nO3deVzUdf4H8NccwDDMAApyjODNjGkqAXnVJmp2yVhtpYJttb/dpNqjEtrtFra22g2s39ZWYL9NO6DDrdbB7TTHDk0bFK90wBsYvJBjuGH4/P7A+TpfGGSAOb/zfj4ymO985/P9zIhv3t/PKWKMMfix2tpzOH78BNrb2yASiTxdHUIAAAEBAYiKisaYMWM8XRUiYBT/iDei+Gef1NMV8KTu7m7U1NSAsW4EBgZ6ujqE8NTWnkNsbCwCAgI8XRUiQBT/iDe... | [
"neither; the samples have the same temperature",
"sample A",
"sample B"
] | null | 2 |
math | pre-k | fewer-and-more-compare-by-counting | true | false | Which group has more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAANlklEQVR4nO3d328U9R7G8fdixUihClUowdpUKyVNiHoBmPojpahceekPJCaanESTChxJ1H/gxBMTgxrCnZEbNR7RG4l6RIFeaKMiYiCpFmsp1kqxFLC0Kj3QORdf98ARgV268/3sZ/Z5Jc1ISGcePs4zs5md3cklSZIMTUDvr3DiNJxKEJGUVOVg1mVw0wyYNx1yQyeT5ItR61gilWdZDVR992v4w/zp0Fwd2iki6ThxGnrG4dAE7P8Vpo2eCn+h8omkb9ZloWs... | 0 |
science | grade-3 | compare-strengths-of-magnetic-forces | false | true | Think about the magnetic force between the magnets in each pair. Which of the following statements is true? The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | "iVBORw0KGgoAAAANSUhEUgAAAg4AAABSCAYAAAA8aFycAAAMxElEQVR4nO3da0yUVxoH8P87MwyDWhBhUFjoEhm2bKGNtLVNg/GKGqyrRm2qWxLBS9Qt1tT4wc261UTd1sa17e4mGnWJEFfNksaIbU3MdkvX6ocqWS8VFUd2UAEXkZvgzDi3/WCZLkXhzOWdw8z8f8kkzPC+5zzvcM7DM+9tFI/H4wERERGRAI3sAIiIiCh8sHCIMhcuXICiKP0eer0eOTk52LRpE3p6enxqb/HixSgsLPQrlsuXLyMnJwejR4/2a30iCp7hkhvq6uo... | [
"The magnetic force is stronger in Pair 1.",
"The magnetic force is stronger in Pair 2.",
"The strength of the magnetic force is the same in both pairs."
] | null | 1 |
math | pre-k | fewer-and-more-compare-by-matching | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAASYAAACGCAYAAABwryeAAAAJbklEQVR4nO3dy29U5x3G8WeunouNXRhziyqghTRtkgJKU7rsP0CqCIWSfXckq/wDlars0mzaqNtU2bSqSqWw6KpZdQVICWkaEqBSqcLFscHGM+PxeObM6WIywRACGOb9vb/xfD8bY9nM+57nWM+5z2TSNE1vrEmXV6R6InVTAYCpfEaaykkHKtKOopS50U7TM8uxpwUAfUe2SPlLK/1vdhWlH1T7rQUAluqJ9HlTur4mXVyRssvd/g8oJQCxTOX6HSRJjUTKJut... | 0 |
math | kindergarten | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 3 − 2 = 1? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAABKCAYAAAB5PTAOAAALr0lEQVR4nO2dWWwcZx3Af3Pu7OzpK3Hs2M1Rk9QkQAhNU0oBcZSCWkCCIqQKUSQEvMEbQgJxvCB4haeCRBDNQwVF0AMhRGkKalOlpaGEpk2cO3Wyvu09Z3aOj4fNru31ruNjdx1n5/dir+fY/8xvvpnv+o8lIYRIFeFcHjIeuIKA2whVgpgCQyZs1UFK2UKcSG90WAGt4J44qCP50odtOuyJlK6GgNuHjAdncnC9CGfzIKfd0oJA9u1JTCm5Bch6IHsLFgTcnpT... | 1 |
math | calculus | identify-graphs-of-continuous-functions | false | true | Is the function f(x) continuous? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AABu70lEQVR4nO3dfXhU9YE3/O+Zt8zkPSQhicEEEUWDBAUBoyBYqVJp3ULrrd3btvbe7dN1rW336d2n3T59+lzbZX16bdf26t62t/fea9XW7lqt72BAEAQMIhAxkoAKAUJCyMskM5N5PS9zzvNHkiEJASbJ75eZJN/PdXlh5uWbH8PMOd/5zW/OUSzLskBERERERELYUj0AIiIiIqLphAWbiIiIiEggFmwiIiIiIoFYsIlmkJ07d2Lu3LlYv359qodCREQ0bSn8kiPRzLF... | [
"yes",
"no"
] | null | 1 |
math | pre-k | fewer-more-and-same | false | true | Are there fewer crayons than pieces of paper? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEECAYAAAASx0PMAABMfklEQVR4nO39eZRd53nf+X7fdw9nrPGcmgEQAEmQ4iCRkiiJskhJlihZsjxnsBPZ7r7tJHa3Mzj2dTqyc1ff3MROd27Hjjs3aSedrLaW7Dixo5bttCVrsGVR1kSKmkiJBEUAJOaaq868p/f+sc85VQAKICUWhKF+nyWBhVNn2Pv89cOznvd5jHPOISIiIiIiu8Je6wsQEREREbmZKGCLiIiIiOwiBWwRERERkV2kgC0iIiIisosUsEVEREREdpECtoiIiIjILlLAFhE... | [
"no",
"yes"
] | null | 0 |
math | grade-2 | greatest-and-least-word-problems-up-to-100 | false | true | Some teachers compared how many students are in their classes. Which teacher has the fewest students? | "iVBORw0KGgoAAAANSUhEUgAAAYMAAAC9CAYAAABRYxF7AABDmklEQVR4nO3deVxN+f/A8detbuq2opBsYcieoWJsNZayC4ORsY0he2aYn33fGWMd5juYMFTWzJghY8k21tSE0SQkS0UoaV/u74/L0dV6WzGf5+NxH4/jnM/5nE/Xued9Pts5MucfGikRBEEQ/tN0AEb3/Ka0yyEIgiCUko0Hv0OrtAshCIIglD4RDARBEAQRDARBEAQRDAQNvEyT81VgR9yvOfAyTV7axREEoQiJYCAAcOG5BV4P6+Z6kb8eZ8bjZAV3E0xYd6dpCZZ... | [
"Ms. Katz",
"Mr. Watson",
"Mr. Clay",
"Mr. Cohen"
] | null | 3 |
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