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 |
|---|---|---|---|---|---|---|---|---|---|
science | grade-6 | match-chemical-formulas-to-ball-and-stick-models | false | true | Select the chemical formula for this molecule. | "iVBORw0KGgoAAAANSUhEUgAAATcAAAB8CAYAAAAMyvcpAAAq+UlEQVR4nO1df3BcxX3/7L476U6ydJYsW7ZkY7AtYlu2iUMcMFAIYWJCWjJOAxMmNG1nknRKJzMkQDp0hjITpgXKlF8TQsg0DZBpfpQkrifjtLgkTE1jIFAgJJaQ49jGtn5YlmxJpx93uru32z/e2/f27e27O1mnH3fej+bmvbdvd9/e093nPt8fu49wzjkMDAwMqgx0oQdgYGBgMBcw5GZgYFCVMORmYGBQlTDkZmBgUJUw5GZgYFCVMORmYGBQlTDkZmBgUJUw5GZ... | [
"H2ClN",
"HCl2",
"HClO2",
"HCl"
] | null | 3 |
math | kindergarten | count-to-100 | false | true | How many stars are there? | "iVBORw0KGgoAAAANSUhEUgAAAcMAAABjCAYAAADn7WuEAAAM8klEQVR4nO3dz1Mb9/3H8Zf1legXEI4Qruy0npHzTSI6YzM29AKHhsxQz8QpM7GZXnpp3L/A/v4F6V+Q+HvvgfbiSyfBJx96KOQAbjot6uDOUI1jSw5gWxVCRSIYiZG+B7EKWNqYFbsfJPR8nDTLavUcz5g3u9ofpyqVSqVQKGhpaUmJRELZbFYAAJxk4XBYsVhMQ0NDCgaDUj6fr9y9e7cyPz9fyWQylXbw6aefHneCYzSbQbMZNJtBs3cymUxlfn6+cvfu3Uo+n6/... | [
"13",
"15",
"24"
] | null | 1 |
math | grade-2 | identify-the-fraction | false | true | What fraction of the shape is orange? | "iVBORw0KGgoAAAANSUhEUgAAARcAAABkCAYAAACsEnQPAAAB6ElEQVR4nO3YsW0UURhG0berkbYCMke2e7BEBZRAB0g04BpowKICanALlmswJJtRgaMhgGALmKuHZs9Jnv7si65Gc1jXdR0AG1vGGOP398/j/dfr7C1X7XT7MD58+TF7BmzmOMYQlv/A+8+X2RNgU8vlcfPp66wdV+38/DR7AmzuOHsAsE/iAiTEBUiIC5AQFyAhLkBCXICEuAAJcQES4gIkxAVIiAuQEBcgIS5AQlyAhLgACXEBEuICJMQFSIgLkBAXICEuQEJcgIS... | [
"2/3",
"2/6",
"8/10",
"1/2"
] | null | 3 |
math | pre-k | addition-sentences-up-to-5-what-does-the-model-show | false | true | Which addition sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABUCAYAAAC4PkCPAAAN+ElEQVR4nO3dS4xcV17H8d+5j3pXd7vabj+VaT+wk+BxPISRcAZFZECzQJkFw0hZBQQCJDQSmmEHAiQEQixAIJBYgAQCIoFYgFBmNZoFijQxGzuZGDweJ/E4JvGj221Xd726bt17D4vrttuxu+Nu37pVXff7kUotl6vvOf/dr06f8z/GWmsFAAAAIBXOqCcAAAAATBICNgAAAJAiAjYAAACQIgI2AAAAkCICNgAAAJAiAjYAAACQIgI2AAAAkCICNgAAAJAiAjYAAAC... | [
"2+1=3",
"3+1=4"
] | null | 0 |
math | pre-k | different | true | false | Which is different? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAAFnklEQVR4nO2dTU8bVxhGH2OMKvLRRatGldpNpbbrrvIr+l/6u0qQpbBhA2JjPkOQLCJDAwpSLOFaigfbgxl7PL5djKhKIzCZufc+9+usGMaeeaVjy1w8x64IIURnApyNgGEGTAUCDrFYAZ5VgZ+XgRdLQKUzFmJ/wB4roIOXz4HF96N84/sl4Ncn+aMh4A7DDDi9Bi4nwF8jYGEwzXcE2W7yrJq7BYA4Axay/+wIuMmt21QAC9xRAroJwj0jCPeMINwzgnDPCMI... | 3 |
math | grade-8 | changes-in-mean-median-mode-and-range | false | true | Look at this set of 10 numbers: How would the median change if the number 5 were added to the set? | "iVBORw0KGgoAAAANSUhEUgAAAS8AAAAkCAYAAADYbryvAAAH8UlEQVR4nO3da1BU5x3H8e9eYLktKDeBxQsKuGgURUWNxiReICpWbTOpnZikmabNi6STSdPM+KLTTt/lVTNp09RmjKltEy9NMxmtWg1WvAUEiSJeABFQQFDucll22d3TFyjDxUzTcp5d1/4/73gWzu/MM+f5nz3nec7BoGmaBuB2Q38/eL2AhhBCPDwMYDRCSAiYzfeaNE3TnP3gdPp334QQ4tuwWMASAmaPWwqXECJwOJ1gMoNRCpcQItC4nGD0ePy9G0II8d/xeMC... | [
"no change",
"decrease",
"increase"
] | null | 0 |
math | kindergarten | select-two-dimensional-shapes | true | false | Which shape is a square? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAADx0lEQVR4nO3aS1ITURSH8X8SYICgMy0XoC6B3bg09+A2mDlEnYtTAqkCSbWDFgXkkUf3uefxfaN0ddWtM/hVJ31vJl3XdadX0veFNF9K152Itm5nIh3OpHf70ps9aXJ62XXHZ63HoswdvZR2vi36i7d70ocXvUKibZsvpZML6ceV9HUhTc+u+xsgoyE7nPWmJOl8KU2Xt24QDdmNqV+dNG07ClUJaGQS0MgkoJFJQCOTgEYmAY1MAhqZBDQyCWhkEtDIJKCRSUA... | 2 |
math | grade-5 | parallel-sides-in-quadrilaterals | false | true | How many pairs of opposite sides are parallel? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAnhElEQVR4nO3deXTV9Z3/8df33publSyEJKxCCCqCIItVq9UOo9YutmotXUVcOy51x6XO6W/szNSqoNTdim1VahepC0rpT621Yp1iHQiLLFpC2LcQspD15uZ+54+EDyRcWe+9n3vv9/k4Z+Z83x4gr87I6YvwyjeO67quAAAAAMSEz3YAAAAAIJ1QsAEAAIAYomADAAAAMUTBBgAAAGKIgg0AAADEEAUbAAAAiCEKNgAAABBDFGykvZnLr9ajH11jOwYAAPAIh280g3R... | [
"1 pair",
"no pairs",
"2 pairs"
] | null | 0 |
science | grade-2 | identify-solids-liquids-and-gases | true | false | Select the liquid. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AAAr6ElEQVR4nO19W4wj13nmV8Uiiyze2WR3T/d0jzQz0owkW5fIUhQnjrBxDO9i4XUSJQZ2AwfBQrsIkADJk4H1JlnsSwAniJHkwckCsQP7QcHCBnY3xu4aG0SRY8uKYyu6+jKSZiT1TF/IJpt3si6sOvvA/s8cVhfJYjd7unq6PoDD6WJdTp366j//7fxH+l6TsStJIB1BiBB3FG0buNYFtk0grwA/kxtul0NChjgppCPAleTw/x379nY5JGSIkwTxz2K3t8kn05Q... | 0 |
math | grade-3 | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABanElEQVR4nO3de1jb53k//rckkABLgCVsED5I+AA+gCEhTWonKZCDna4mxk2aLmk3k3VJl7Vd8Ldd1rT7/uysW9Ot29e4bdq12RqlB69d7RoXt42dg0XSmjYxsQg+CSdG+CDAQSAQ5iAO+v1BpHLQ4dFZwPt1XVxG0vP5fG7b4uLW87mf+5G4XC4XiIiIiIgoIqTxDoCIiIiIaD5hgk1EREREFEFMsImIiIiIIogJNhERERFRBDHBJiIiIiKKoKR4B0DxNz4xgrGJ4Sl... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABp/0lEQVR4nO3deVjU170/8PewDIszgAwKjAuDCxiVQIJt6pKCSare2xCxpktsfxVvm/Q2aW+wac1Ne2/V5rZp0t6KbZPepvc2mKZ204jVtmIWhyzSJhKH4AaKDi4DKIMDM2zDMr8/yExYZjnf2YH363l4Mss55/tBZvLMZ845nyOz2Ww2EBERERGRX8hkslCHQBRyEaEOgIiIiIiIiCYXJppERERERETkV0w0iYiIiIiIyK+YaBIREREREZFfMdEkIiIiIiIiv4o... | 1 |
math | grade-6 | changes-in-mean-median-mode-and-range | false | true | Look at this set of 8 numbers: How would the range change if the number 52 replaced the number 90 in the set? | "iVBORw0KGgoAAAANSUhEUgAAAT0AAAAkCAYAAAD7Ne16AAAI2UlEQVR4nO3daXAT9xnH8a8uy7eRjDE2YBmDsc0dxxzpUI4Qh0DTI00h0AItM5DJi5Q0A2WGdJJ2esyUMJ0pZVrKZAiBQIYAJZCkYAcI923MZcDGxkfwhfGJDbKsY/tCRiCOeu3sSgr6f95JfuT9+c+jZ3e1ktBIkiQBOFzQ3gEuCSQEQRC++zSAVgOhIaDXdt4nSZLUbgebw6/ZBEEQVGXUQ6gBtA6XGHiCIDz9bA73Ga3WZvd3FEEQBN+w2UHrdPk7hiAIgm84XaA... | [
"increase",
"decrease",
"no change"
] | null | 1 |
math | grade-1 | time-and-clocks-word-problems | true | false |
Sarah went shopping at the mall. She arrived at the mall at 1:00. She visited the shoe store, the bookstore, and the electronics store, and left the mall 4 hours later. What time was it when Sarah left the mall? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAAA2CAYAAAAlHWAMAAAEx0lEQVR4nO3dwUvTfxzH8ed3aqJzv5/Y2lp4qMzfT/Jg1mIUeOkUiqwMAj106tCIiiEdOoRBXSooiIgOHYL+AMlfdamQFBR+JnnxkNolUPfLXw6mydzPfd+/w34b7WepUz4I370fF937+9pnX/DF9nUyP5aISCwFU0uwkIYVQamClVrgKYH6SvDvACu2LPJnYrtPSzlJ6BconVzK3AjsgN/dmdYpVaiFNHz8BrMpmFgCV2Ilc0BLpbbCU5LpEMBiGlzp7w4otRX... | 2 |
math | pre-k | circles | true | false | Which shape is a circle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJgAAACaCAYAAABVCoEqAAAG9ElEQVR4nO2dS28aVxiGP3xbpEm7a5VNdm1/QBb51f0BtSK7lljY3lC1UjA4CEu0wlRCskICZmDmdDFxhC3D4TLnnO/yPhtf8GWMHw9nXh/er+acc7cZ0ccx0SgnmjsCYGsOakSv9ol+fkH00xFR7Xbq3OWn1IcFNPLue6KD63H5xusjol+/K+0DYFtGOVHrC1E/I2qPifY+zcsbIBeoglf7pUtERJ9zor184QYAquDBpZkj2kt7KEA7EAwEBYKBoEAwEBQIBoI... | 2 |
math | grade-7 | parts-of-a-circle | false | true | What is \line{WX}? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADICAYAAACdx5VnAAAm80lEQVR4nO3deXxU9aH38e9MJstM9j2EJUDYAigoi2x1By8tLtSlePWlFReuiFJtwa3VPrebF7W3KnVBRVCx4nOV9lZaHtGGVDEQUkUBA2ELAULIvk+WmczzR+QkI5BESTgzk8/79eLFOWfOyXwHzh/fOfmd37F4PB6PAAAAAAQEm9kBzgaLxXJW3ofvSgAAADBbnyj4FG8AAAD0FVazAwAAAADoOVaLxaJNmzad9MK0adPUr1+/k7YXFBTIYrHoxRdf1CuvvCKLxSK... | [
"radius",
"diameter",
"center"
] | null | 1 |
math | grade-7 | which-is-the-better-coupon | true | false | Leo would like to buy a frying pan with an original price of $9.00. Which coupon should he use? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAXcAAACRCAYAAAA4qvjVAAAyQ0lEQVR4nO2dd3gc1dX/PzPbV70XW5Kb3I3BBhMbm+KAgdBMgJgSIAQSXkheIISE8Ib8khgIkJCQkLwhAfJSEoopoYRqwAaMjSkugI2LbMuWbPVets/O74+RVrvSrrRN0mp1P8/jx4/uzNwpu/udc8899xxJVVW1zgX7bNCpgEdFIBAIBGMMvQRpOii3QoERpDqnqn7SMdqXJRAIBIJ4cXw66Cts2h9FRpiRoim/QCAQCMYWnQrs6YZaF+y1gdzh0TYIYRcIBIK... | 0 |
math | grade-3 | parallel-sides-in-quadrilaterals | false | true | How many pairs of opposite sides are parallel? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAmO0lEQVR4nO3deXxU9aH+8Wcmk8m+JxBCWAJhka2gIKCI4kqlFjfUWjcqVkutvb29v7tV3H/t797X7b29LW6Futa64ELdxQWKaEFQIIAIhJ2EBJKQfZ3M/P6gfhNqAknmnDMzyef913Pw5Huevtq+Xk/Tw4wrEAgEBAAAAMAS7lAXAAAAAHoTBjYAAABgIQY2AAAAYCEGNgAAAGAhBjYAAABgIQY2AAAAYCEGNgAAAGChkAzsGa8s1Nkv/ygUjwYAAABs5fjAvvKdf9c... | [
"2 pairs",
"1 pair",
"no pairs"
] | null | 2 |
science | grade-7 | identify-rocks-and-minerals | false | true | Siltstone has the following properties:
no fixed crystal structure
not made by organisms
made up of fine sediment grains
naturally occurring
solid
not a pure substance Is siltstone a mineral or a rock? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAABiOklEQVR4nO39x7NlV5bmif22OOrKJ11AIyIyIyMyk5ksdtOsjG0ccEDO+Sf2jCNyTmPNaNZW7Gy2FauisjIEAsL1E1cftQUH65xz73M43IFARLgDuMvsweFP+RV77aW+71sqxhg52tGO9krTb/sBHO1o77IdHeRoR3uNHR3kaEd7jR0d5GhHe40dHeRoR3uNHR3kaEd7jR0d5GhHe40dHeRoR3uNHR3kaEd7jR0d5GhHe40dHeRoR3uNHR3kaEd7jR0d5GhHe40dHeR... | [
"mineral",
"rock"
] | null | 1 |
math | grade-1 | 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? | "iVBORw0KGgoAAAANSUhEUgAAAJkAAABmCAYAAADYmDN2AAAbTElEQVR4nO2de5RU1b3nP/t0Vz+qoV90SUMJzW3aQGtHVOBqNJZKrmJichHwwqBiNDMTkbWyHME1JqLj/MFD1ro3ideMiXijSxM0uSZCJ5nbjhNNlMvI8xIjAiqg0jTdTUNXv6qq63H2nj/OPqeqePajHl3Q37WqT586Vefss+tb399j//YuoZRSjGIUaYSR7QaM4sJHfrYbkGm0nIzw0ZEQ7V1R2vxRWv1ReoImnjIX1RUuqstdTKx00VBTTMWYi6570gJxoZvLmKn... | [
"probable",
"certain",
"impossible",
"unlikely"
] | null | 0 |
technology | grade | photo | false | true | What type of video game console do you see here? | "iVBORw0KGgoAAAANSUhEUgAAAV4AAAErCAYAAACWxOtoAAEAAElEQVR4nOz9Z5AlSXYeCn4e6qq8qUtnqSytq7pazHT3vOkRGMyDYW0fqLlvCZLLR64Z98caHrnvzy7XSK49Yn9QPWpiH0moAUESwFBgOMBgNI0DcAY9091TXboqS1dlpRZXhXDfHxHHr19Pj7j3ZmbdutmdxywtM0N4eHi4f37O5+ccZ5xzwRjDixIBgAHgnMOyLCD5mzEBeq4QApwDtm0DAKIogm3bEEKAgWF5aQmDQ0OAEPgLf+Ev4Pd///dx9OhR/NRP/RSCIMB... | [
"Sony PlayStation 2",
"Sega Game Gear",
"Sony PlayStation Portable",
"Nintendo Entertainment System"
] | null | 0 |
math | grade-4 | acute-right-obtuse-and-straight-angles | false | true | Is this angle acute, right, obtuse, or straight? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABwCAYAAAAkAwevAAAIvUlEQVR4nO3dWYyVZxkH8P9hHcSGqckYoCa1VcNSIjADbtVate2FVm2CW6KVaeJyZ4lJY+KFpTGpF8ZY443RqFOXmCqmS2pisRgq2tjATEdlsSoIFYZGKnNqHRkYy/FiZlic7QDfOc7H/H5Xc+Z8Od9z+c+T533eSq1WqwUAACjErP93AQAAcDkRsAEAoEB1Bezeo32NrgMAAC4LUwbs6uCJ3LHlgWbUAgAApTdlwL7v1zvSe7Qv2w/sb0Y9AABQapMG7Orgidy7fVu... | [
"acute",
"right",
"straight",
"obtuse"
] | null | 3 |
math | kindergarten | one-more-with-pictures-up-to-10 | true | true | Count the hearts in this group. Which group has one more than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABeCAYAAAAZpWPpAAAGx0lEQVR4nO3dP2yV1xnA4ZeoMoMx9uCqRY5UsECCyYbBXWLkKl6gQ0wqEBt2InVqsTMGBswAjDUka/Flq9KquEOcDiAZ3MkDXCYiOXJdqQaqWKobJ4NZbgfLjWtMGtfnfuf+eZ7R+H7v8fbj6Nzz7alUKpUAAACSeCP3AgAAoJEIbAAASEhgAwBAQgIbAAASEtgAAJCQwAYAgIQENgAAJCSwAQAgIYENAAAJCWwAAEhIYAMAQEICGwAAEhLYAACQkMAGAICEBDYAACQ... | null | [
"iVBORw0KGgoAAAANSUhEUgAABAkAAAB2CAYAAACqPMqGAAAMU0lEQVR4nO3dQZBU9Z0H8O9EHaoCI3OYaFxSJaFgF08zcsCL42LJBVKpQKpwvQl6XgaPgYN4UPcmYK6RyVW3Vnat4IXUjpDTHHA8aXYslsMSSDkHllGrYKU6h+5eJ6iRYbrf/3W/z+fSVePQ//982+rq9/2993okSSsAAEBPtFqtXLuVfPplsnw7+cqnbaCm7h9Jxu5Ltv0weXi0/bORKAkAAKBnrt1sZf5G6V0ArM4TDyYPjSb3l94IAAAMk8Uv24+PjCb/sL4... | 1 |
math | grade-2 | choose-the-appropriate-measuring-tool | true | false |
Which tool would you use to find out the length of a kangaroo's hop? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAACoCAYAAAACcRc/AAAV6UlEQVR4nO2dfVxUVf7HP8PD8DCDDggMKAgDiAIq+Agt/ixbQxHTJNfSH1uWYa3akm2bpoibZaxaKa7Zg66J/VbYfNq0VqdVSJNS0xySzdIZQM0ERHlwBhgY5vz+GJkcGWFmmHPvMJ3368VL555z7vne4c2955577jkCQgipagWUTcCtdkBHwGBYjZsA8HEFBnkDUiEgqNIScqqR77AYzkRiH8DtYpPhQ7AQGCwyWMdgWMutduBHDXCtFbjQBLg06gwJTCpGT/B... | 0 |
math | grade-4 | is-it-a-polygon | false | true | Is this a polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD6CAYAAACbKDARAAAYB0lEQVR4nO3dW4xkd50f8N851bcZz6W7aowxYG7yAsYYMF5jg/Hd0z27q2STIKRcJDZRlIckipSNlJcoL3nLQx5WirJSpChaRavVbi67yUYJ0+2xsY2xMTbGNheDlwBeA14zruqZnmtfzjl5qOqq7gGGYdx1Tvc5n89LSfzNzE9++vLnd/7fpCiKIgAAgB2RVj0AAADUiYANAAA7SMAGAIAdJGADAMAOErABAGAHCdgAALCDBGwAANhBAjYAAOygqw7YxflXYvXpm2P... | [
"yes",
"no"
] | null | 1 |
math | grade-4 | compare-fractions-using-models | false | true | Which fraction is less? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC5CAYAAAAS5EjTAAAvg0lEQVR4nO3dfVyUdb438I+PN4g5Q2czxZJB9GgJQeRmrSBD5p4iEPReUzc7QGraZjfQrgnuSTFbH7IWOMdaPFGOpatoCj5k7tmU6YYeVAwUdLXlYUYTjXbjQmHHVWzOH+NcDvg0MNfTwOf9eu1rkYe5fjTfXn38Xd/r9+1ht9vtICIiIiIiSfRUewFERERERF0JAzYRERERkYQYsImIiIiIJMSATUREREQkIQbsq1paWvDKK68gJCQE/fv3R1hYGNatW6f2sshLsZ6... | [
"3/6",
"3/5"
] | null | 0 |
math | grade-8 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADeCAYAAAAHFXcxAAAbzUlEQVR4nO3de3Sc9X3n8c/zzEWyLEuyLFs2+I6ML/KFEG4Gg4m5bFiSEzZND213Q0KcQsqpkzalpS3paUrS9hBodk98QpMSaC7bLmTb7LaFQxswhKsdKA6+C4NvxMYW6C5ZmhnNPE//mNH8xq6RZqRn5nlm5v3669E5M+MfaJ6jz/Odz/Mby3VdVwAAAAA8Yfu9AAAAAKCSELABAAAADxGwAQAAAA8RsAEAAAAPEbABAAAADxGwAQAAAA8RsAEAAAAPhf1eAKrXa/2... | [
"no",
"yes"
] | null | 0 |
math | grade-3 | identify-multiplication-expressions-for-arrays | false | true | Which expression describes this array? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACqCAYAAACXpjjmAAAe+ElEQVR4nO3d6Xsb1cH+8XskWZJtLXYSICRAnD1pUkovaAxx9rC1UEIfoNez/X29fn0otAGu0IUsjrOwE7IHZyNAIIR4kWRZkiXN74VJC6EJzOjMzJH8/by2z5zx/UK3j86ccVzXdQUAAADAiFjUEwAAAAA6CQUbAAAAMIiCDQAAABhEwQYAAAAMSkR58cp0U5OTDUlSPh9Xurtz+v7kREOlYkOZbFz5vnjU0zGGzNpPJ2cGAICNQivY17+u68rlqj77tKob39RVmGi... | [
"3×5",
"5×6",
"6×3"
] | null | 0 |
math | kindergarten | count-scattered-shapes-up-to-10 | false | true | How many triangles are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAGkCAYAAABEhlHyAAA1lUlEQVR4nO3dy28j2Xn38aftucWevM4iDgYIPJmBY8NxkMAIYK+yCBDAQHZZ5F8WmwQokSKp1oVNSpRIWhZbM+yWiizW5Zx3Ua25dEstiqyqc6nvZ+VpT49K7FbVr855zvM801prAQAAAOCFn5i+AAAAAAD5IeADAAAAHiHgAwAAAB4h4AMAAAAeIeADAAAAHiHgAwAAAB4h4AMAAAAeIeADAAAAHiHgAwAAAB4h4AMAAAAeIeADAAAAHiHgAwAAAB4h4AMAAAAeIeA... | [
"1",
"5",
"4",
"10"
] | null | 3 |
math | grade-2 | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABZeUlEQVR4nO3de1yUZfo/8A+IAwJjynBwKHVABU2mragAjwilHQQrrZR+7Ultv7W7ybYdNtitrV1tO+wu1Le+7apbe2i0TSvBtqQwUBMs6TSogTqMWoODjKdhEEaU3x/sTAzM4Z4TM8Dn/Xr5ipm5n+e5U+Y119zPdV9XSHd3dzeIiIiIiMgnQgM9ASIiIiKioYQBNhERERGRDzHAJiIiIiLyIQbYREREREQ+xACbiIiIiMiHwgI9AQq8c+YLaO/sgqmjq+e/nT3/DRs... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABjqklEQVR4nO3de1zUVf4/8BeIgwLjheHiUOqAChkzbUUFeEUp7QZWWir99lJKu7W7SW2XXfxurbba7naD+rbf3dW29oZaWgm2JYmCFmBJbc2ggTaMWoODjArDIAwgvz/YmRidy2fuA7yej4cP53LO+byFmZr3nHPeJ6S/v78fRERERETkFSEhIYEOgSjgQgMdABEREREREQ0vTDSJiIiIiIjIq5hoEhERERERkVcx0SQiIiIiIiKvYqJJREREREREXhUW6AAo8M6... | 0 |
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. Destiny had six air plants on her desk that were not growing. Once a week, she soaked the air plants in water. But she suspected that they needed more water. She wondered if spraying the air plants with water every day in... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAEhCAYAAAAUBJnbAAEAAElEQVR4nOz9V5MkSZbfC/5U1Zjz8ODJMysri3ZV8+6Z6WlMDwEuyAICCIB7l9592Td8F3yCfdmXFVnsXRng7soFMANgWA/p6S7OskhyHty5MVXdB3PzsLA094jIrOqqEcEJCXF3I6rH1FSP/g/Ro+Lf/Jt/Y/nv9N/pv9N/p79D9G//7b/9Wup1AP7J0t7sgBDiyGf5WNV313Wx1mJtJnvz7/nveWUBGJF9t4K515Yprzv/T5IEIQRSytmxIg+L6s/JGDO7VkqJlHJ... | [
"the plants that were only soaked in water",
"the plants that were soaked in water and sprayed"
] | 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. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AAB3y0lEQVR4nO39e3QU150ufj/V99b9iiQEEmAMtjDCgMEGg40DsYlJnEDiIckkceJk1pzEuc3Pk19msnLyvieHyeQk42RlxvH4zIxvifMmsSeOExvLGAdssDAGZBBIYJBlJCSE7q1W36uqq94/RAsEEuqW9la3Ws9nLS+s6uqnt1rd1d/avWtvxTRNE0REREREJIQl2Q0gIiIiIkonLLCJiIiIiARigU1EREREJBALbKIZZM+ePZg3bx62bNmS7KYQERGlLYUXORLNHJs... | [
"$\\lim _{x \\rightarrow-5^{-}} f(x)=-\\infty$",
"$\\lim _{x \\rightarrow-5^{-}} f(x)=\\infty$"
] | null | 0 |
math | grade-2 | select-figures-with-a-given-area | true | false | Which shape has an area of 5 square units? The shapes are made of unit squares. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMIAAAD+CAYAAABoWdrnAAAEC0lEQVR4nO3csW4cVRSA4X/XaxfBASoQDxBcUack4qXyDLwUhDYtlUl6TIdsx1KMV0MxikTPxcOMv6/a1RT3FvfX6c5umqbp6r7e39XNsR6mYPMOu3p+Ui+e1ddntbv6OE1vr5e+Fizn5ed1eHc3//nmrC4+myuBrbs51uWH+v2+frur/fXD/EEEPCXPT+Y3X3V7rP3xHx/gKfn05v+aar/sVeD/QQiQEKASAlRCgEoIUAkBKiFAJQSohACVEKASAlRCgEoIUAk... | 1 |
math | kindergarten | triangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIUAAACVCAYAAAB2DDmnAAAF/UlEQVR4nO2dS24bRxCGi9Rj4djJLkEO4OQIvkPOlAPlDoYBZeOFrYUX8UNUIkBAYsmIAUGSRUAM6cmiQ0DKiJTZU939V9X/bcyHRhjNfGp2Vf8tj7qu605nIr9PRS4XIvNOSDC2RyKPtkQePxD5bldkdHrddS8uWp8WQeHJ1yLbh9P05PtdkR+/SsaQWFwuRA6uRE5mIpOpyPhint6gEHF5tJXuv4jIp4XIeHHjDRKX5f3/pxMZtz0VggilID0oBelBKUgPSkF... | 0 |
math | kindergarten | count-money-pennies-and-nickels | false | true | How much money is there? | "iVBORw0KGgoAAAANSUhEUgAAAQYAAACICAYAAAAF+EUgAACNZUlEQVR4nOz9d3hc93Xnj79unV4x6EQHSIBg711dsiRLcpFrYnld08vaTlulbOpvn2wSZ71J/I1jJ7GcuNuymlWoxiJR7J0EwQIQfTDAYPrcufX3x2DGou1NJFkSpF28n2ceguQAmM+595x76vsIjuM4LGIRi1jEyyAu9AdYxCIW8dbDomFYxCIW8RNYNAyLWMQifgKLhmERi1jET0Be6A/wesCxLYqFAvlshlw2QzqVopCaJa+VEIFAJEogXIPf58Pt8xEKhVFUFUE... | [
"15¢",
"19¢",
"18¢"
] | null | 1 |
engineer | grade-7 | identify-control-and-experimental-groups | false | true | In this experiment, which were part of a control group? The passage below describes an experiment. After a severe winter storm, Vijay's driveway was covered with ice. He read that salt makes ice melt at a lower temperature. Before covering his entire driveway with salt, he wanted to know if adding salt could actually h... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAELCAYAAACyM7+LAAEAAElEQVR4nOz9WZBl2XWeCX5nvvN8fZ495oicgMxkZoIkQEhoUCCtjGYlscxaJlbprUzo4bHf6rllVSY9yqytqrut21TdEotqkiI4CSCQxEAg58iMyIzR59n9zuOZ+2Gfvf1GIJFJMglEUoqd5uaRPly/99x91l7rX///L+2b3/xmzNP1dD1dT9ffo/Wv/tW/eiJ/1wSYzdXZ29vDNE2y2SyXr17hzp07nJ6cceHCBUaux927d/F9nwsXLpDJFTg6OqLX65HJZMg4GSq... | [
"the unsalted ice cubes",
"the salted ice cubes"
] | null | 0 |
math | precalculus | determine-continuity-on-an-interval-using-graphs | false | true | Is the function f(x) continuous on the open interval ( – 9,6)? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB8rklEQVR4nO39e3yU5Z0//r/uOeUcJicSCCacBAWScDBgkAgWT9WKBetiu9Xar7qfdmttu213++1qd7eyft1tbX/1tF2tq2Lb7UdaT6gBQRDSoAQiBBIVMEBCCDlMMjOZ8338/TFMJHJK4L4yM8nr+Xj0UTOZ+5039z33db/va677uiTDMAwQEREREZEpLPFOgIiIiIhoNGGBTURERERkIhbYREREREQmYoFNRINs2bIFkydPxs033wwAuOWWW/Dqq6+e8b2KouDKK6/... | [
"no",
"yes"
] | null | 0 |
science | grade-3 | compare-properties-of-materials | true | false | Which is smoother? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AAAvZUlEQVR4nO2dWXAUV56vv5NZq6pKW0kICS0gIcRqDGbHC7bxBjbQBvdid4f7xp15n7c7MRF3YiJmHmZeZh5m5qFjunuWO9MdHRPT7QYDXrABG7NKgNkMwiAhJEBIqLSUVFtmnvtQi6pKVVpAoATy5yjnqcyTqcysj/9yzsmT4tSAlE0e8KlYsvRINaTDlWG4HYUSGzxfHF+vWEBamin5VGjyxMtBfXS9YgFpaSaV5C8mR9cpM3MqlizllwWlJdPJgtKS6WRBacl... | 0 |
math | grade-5 | interpret-bar-graphs | true | true | Look at this bar graph: Which table shows the same data? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFUCAYAAAAeSUs7AABX1UlEQVR4nO3dfVxUZf7/8dcMMOJwoxh4E4ZW3hCpJCmCt2jmWkQFZqHWrq71bS3DdmvNrd31t7rr7rbmxq7UWtvNsn2tIGfS0rTU1MTNrJQQTHRVvEvxFgR1hpv5/eGXqRFQBgcH9P18PHo8nHOuc83nOh2YN2euc47B4XA4EBERERERjzB6uwARERERkSuJAraIiIiIiAcpYIs0Mx9++CFPP/00OTk53i5FREREGsHX2wWIeJrNZiMtLc35ulWrVrRv357w8HDuvPN... | null | [
"iVBORw0KGgoAAAANSUhEUgAABFQAAAFUCAYAAAAKxWj3AACg/ElEQVR4nOzdd1yV5f/H8ReHKcsFOXDmJhVFRXHiHkg5QnFUmJVaitlQyzLLmZplaqWVmfmzQoU0NRduLbJU3Ctx7wUCyjy/P4jz9Qgqh1BQ38/Hw4ee+77u6/5c59zneO7PuYaV0Wg0IiIiIiIiucLKyiqvQxARkQfAkNcBiIiIiIiIiIg8bJRQERERERERERGxkBIqIvnM0qVLeeutt9iyZUtehyIiIiIiIiJ3YJPXAYjktsTEREJCQkyP7e3teeKJJ/Dw8KB... | 0 |
math | grade-1 | count-sides-and-corners | true | false | Which shape has 5 corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAD80lEQVR4nO3duW4UQRSF4TPjRcgszkAEhMAbwHPzEiARkLMEZNgRaIzHYvCoCJorNi8zuPvU9n9Rl0oq3eBXRS3VLKWUjlbSh6V0spbOk4Ab251Jd3ekxwfSg31pdvQtpdeL3GOhZc/vSbvvl8Pi4b709PZQIXBTJ2vp7an0aSW9W0rzxfmwQWQY092doSlJ+rqW5uvfNoAxRVPfkzTPOwp6QWiwIDRYEBosCA0WhAYLQoMFocGC0GBBaLAgNFgQGiwIDRaEBgt... | 1 |
math | grade-3 | match-clocks-and-times | false | true | What time does the clock show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAIHUlEQVR4nO3dwW+b5R0H8F8mVBBCfg8TYptqTZy21r5u07ILYjC14kZb+7qNmhuKsxZuJNg9cGlJInFLgXHDbdMbagVcl/0Ddu/DnECbZIMGLWq9Q5QuLWmxncdx8/rzOfmVnvd5fnlz+erRT88zNxgMBgEAACTxk2kXAAAAeSJgAwBAQgI2AAAkJGADAEBCAjYAACQkYAMAQEKPDTvww+4b8d2dbyZZCzPo8BNH4qVnXpt2GQAAydjBBgCAhARsAABISMAGAICEBGw... | [
"five fourteen",
"five forty-six",
"six forty"
] | null | 1 |
science | grade-3 | identify-rocks-using-properties | true | false | Select the one substance that is not a rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEGCAYAAAD2aACLAADCe0lEQVR4nOz9R5ckWZbfCf7ee8JFlBpxHh6ZGZFZDIVBYw4WM/25ZzGbWcyiewAMCgNSlVkZPJyYm5lS4fLYLJ6ahUckLaCz0ira7zl+1Nyomppcuffd+yfiPxy8/0UJM8WH+BAf4n8gagu/auHtBKsI/tdleL/8kFgf4kP8z8VMwS/K8HZjv3u//JBYH+JD/M/HXR5p/9375J/nqXyID/Hjjw/J9SE+xJ8oPiTXh/gQf6L4kFwf4kP8ieJDcn2ID/Enig/J9SE... | 2 |
math | grade-2 | match-addition-sentences-and-models-sums-to-10 | true | false | Which shows 3+7=10? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAXYAAABKCAYAAACvkX8HAAAM6klEQVR4nO3dTWwc533H8e+87ftyLVEvtEhHomSrYWo3qPqi5FSnoO1DkEsKAzkklyC5uEWAnnrLoYcgaE9t0QJtjzkEucZFAacOhKanpm0COLHdRIophZYqiiZtct9mdl6eHobL181yZznP7Oz6/wEIWtyZZ+bnWfxn5pmZZwyllHrcg3sdaIYQKIQQQkwR24C6Bc9V4HIBjMeeUj/enfRqCSGESMPtObDvduJ/PF2A36rGVV8IIcT0aIbwizb8Xw9+2QFzN4g... | 1 |
math | precalculus | solve-a-triangle | false | true | In solving this triangle, which law must you use first? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD7CAYAAABQdOO0AAAedUlEQVR4nO3da3BU9eH/8c8mIYnZ3Ei4VcofyowXLBQE5RLCTUAUHUspmkrpOPxbH1ln6qgdp9OxM3amdabjgz7o/O10LNNB+InSqlQrFEJDDLlZKAH8AaXFQAQySTZmr2w2u3v+DyIYTgLksrtnz9n3a4YHEib5qpHz5ng+uy7DMAwBAAAASIgsqw8AAAAAOAmBDQAAACQQgQ0AGDOv16vs7Gy9/PLLQ378u9/9rqZPn57iUwGANQhsAMCYNTQ0KB6Pq6KiYsiPNzY... | [
"Law of Cosines",
"Law of Sines"
] | null | 0 |
math | algebra-2 | factor-quadratics-using-algebra-tiles | true | false | Which area model represents the factorization $3 x^{2}+7 x+2=(3 x+1)(x+2) ?$ | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAVUAAAEACAYAAAADT+VqAAAP1UlEQVR4nO3dbWxVh33H8d99sHm4xhhs/IDNDCaM5wxMUlcsYywFFUipxpK+SJUGaauqbEDTSamyKK00ZVOivVjVbcok1IZJmyJECo2aNEkTx1sKGyyFmocEAwFcPBvs2JcYO752jH3P2Ys7e7YDrn3v3xzuOd/PG3IP4f7/+sn63XN87XtCruu6bTelS73Sp0lp0BUAYIKiIWlWRFoyUyrJlUJt/a77q26v1wKA7FeTL0Uv9qYelOVKS2OpxgUATMynSelCQmq... | 1 |
math | grade-1 | which-tally-chart-is-correct | true | true | Kate was at the pool. She saw some things at the snack bar. Which tally chart shows the right number of each snack? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAByX0lEQVR4nO39e3QkV37YeX7vjYh8IQEkkHjWEyiyikVWk8ViN5ukWqSaarekZk+32JIld2tlW7a8XunsOePxGZ+d/WNtWZ7VHJ8Zydbunj3j9VlNy5ZnLK9aVkvTLZEtt0T2s9h8k8ViFesBVAGFN5CJRCJfEXHv/hGJRwKoJxKPAn6fc3AqMyIy8gYKqPrljd/9/ZS11iKEEEIIIYRoCr3TAxBCCCGEEGIvkQBbCCGEEEKIJpIAWwghhBBCiCaSAFsIIYQQQogmkgB... | null | [
"iVBORw0KGgoAAAANSUhEUgAABH4AAAEOCAYAAAD/r9B/AAC5X0lEQVR4nOzdd5xcV33//9e5907d2d6LpF3J6pYlucq4yDJgYhNsU4zpmI5DviGkkF9IAqGFYmoSAqEEcGjBFAMGjMHYxkWyLXdppVXbXW3vs23qvff8/rjbRrOSVtqVtujzfDz08M6dW86d1co77znn81Faa40QQgghhBBiTiil5nsIQgghxARjvgcghBBCCCGEEEIIIc4MCX6EEEIIIYQQQgghligJfoQQQgghhBBCCCGWKAl+hBBCCCGEEEIIIZYoCX6EEEI... | 0 |
math | kindergarten | identify-pictures-with-symmetry | true | false |
Which picture has symmetry? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAArLklEQVR4nO3deXhU5cH38W9myUySSWayrySEJSFhR1mqreJTl7rUF2q11pWqKLRVcEGstWyCWq2C1MelasX2QW1diEjVuhSwioJsAgYISxKyb2TWZCazvX8MicSsk8zMORPuz3VxXWRy5pw7ML/c59xrhNfr9da2wdEWsLjB5UUQhCBRRUCsEkZHQ2okRNQ6vN4dZqmLJQhnnulxoDrS4vsiPRLyY3zpFAQhOCxuOGyDmjYoaQGF2eX7hgifIARfrNKXNQCrGxT... | 0 |
science | grade-3 | classify-rocks-and-minerals-by-color-shape-and-texture | true | false | Select the brown rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAACI3ElEQVR4nO39adCt2XUWCD57eIczf8MdM2/OqcGWLSRLxsLVZZdBhqBomoIIiiGgiugO6OBHRxDtgOrq/gMVHR3RzR/RUahsVzWTTXRjMB6wBTIggcPYpFAqU5JtOTOVqcybd77ffIZ32kP/WHvtd59zr+5NK9OVKfvsuF+c+w3nPe+w1/SsZ60lvPce27Vd23XfJd/tE9iu7Xovr62AbNd2PWBtBWS7tusBaysg27VdD1hbAdmu7XrA2grIdm3XA9ZWQLZrux6... | 1 |
math | kindergarten | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 9 − 2 = 7? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdoAAABKCAYAAAAc9ZVYAAAOp0lEQVR4nO3dW3Bc9WHH8e/ZszddVrJkI9kEnMZgCAGc2M4YDE2hQ0MnSWmYQGOK26JmaIdO8tAL7eShnUmHmU4v0zz0pS1NO5oUJ6XhnhIyIZmSmRI5MhhsExtjbIIDtmRbkqW9affsOf8+rHa1Wl32dtZaLb/Pi/fs7jn7/9nH89tz9r9nLWOMGcvC2ymIu5AziIiISJ2CFsRs2NoJg2GwxjLGjM6s9rBERETaz009EDyRyi9sCsO1XfkWFhERkfrEXTiehLN... | 0 |
math | grade-8 | apply-multiplication-and-division-rules | false | true | The number line shows an unknown number, y. Is – 2 y positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGgUlEQVR4nO3dX2iT+x3H8c+TNGlNmlOjtKNs9vSgnEkpdGKNrXjE3QyGc6PijTficAqKnMFgeDO3i1ME78ZBh7LupmD1ZnFMJozBIPWmSa2Ss8zuTKRp3Q6bznXH/sn/PLvIkmO1jT2sPr+meb9uQp7efCAJfPLt9/nFsm3bFgDUkJGREVmWpWPHjpmOAofwmgOoJQ2mAwDAl/XkyRPTEeAwXnMAtWTVBTuXy2liYkLRaFRtbW1MEVAX4nO2Bh/nlEzZ+mTO1oGgSz3... | [
"positive",
"negative"
] | null | 0 |
math | grade-8 | classify-quadrilaterals | false | true | What name best describes this shape? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACmCAYAAADgZPidAAAXHElEQVR4nO3dXWxU953G8WeOxzNjj41tEozISrxmS9pEDjJRYrRyYoMXEqkBeoOrlcISCBGrRKverLoXKyW9aNWVKm27SrSohFCCVpWjvYBGlQgyb3G3OFFwiJXsghS3hkpkDYlfxzCv5+zF8bFnfGw84PHMmZnvR7L8IhgfS0R5/NP///x8lmVZAgAAAJATRqEfAAAAACglBGwAAAAghwjYAAAAQA4RsAEAAIAcImADAAAAOUTABgAAAHKIgA0AAADkEAEbAAAAyCF... | [
"parallelogram",
"trapezoid",
"square",
"rhombus"
] | null | 3 |
math | grade-3 | coordinate-planes-as-maps | false | true | What is at (6, 7)? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAE7CAYAAADn6/a0AABxEUlEQVR4nO3deXyU5b3//9e9zJZM9oQlLO64gIhQwVJxQVyPYqu26lGPVVt3tLVuv6r1nLaPc6xttdatVU891q2ntV+k1vaIimK1apXiCgiyL0kg2ySz3st1/f6YMDAkQBImJIHP8/G4Ncx939d1zQQm77lyLYbWWiPEbtbWnsRxvd1ebyQcpLgovNvrLbS04xKPp3p1bzKVwVu3gOr6NzBLqjFDRQD4TobExjqcioMJHXkOlmV2uteyTCrKorvUdiGEEGJPZ/d3A8T... | [
"post office",
"bakery",
"hospital",
"pet store"
] | null | 2 |
science | grade-4 | predict-temperature-changes | true | true | Two identical blocks are heated to different temperatures. The blocks are placed so that they touch each other. Heat can flow from one block to another but cannot escape from the blocks. Later, the temperature of each block is measured again. Which pair of temperatures is possible? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAACgCAYAAADq8hJGAAAZQUlEQVR4nO3daXAk533f8W93z30BMxgAi3OxS+5yKZIyL1mktUtJlChRtiTKcskM7ahcViWRU6kkLifRC1NxuRLFLieVlJxURVEltuRTlGTRXMoSRZoSqYMiqaUVbigey71wDoAFMPc93f3kRQ8axAKLnd0FMAPg/6lSiRj0DJ6dp+f3dP/7mX40pZRCCCEAvd0NEEJ0DgkEIYRLAkEI4ZJAEEK4JBCEEC4JBCGESwJBCOGSQBBCuCQQhBAuCQQhhEsCQQjhkkAQQrg... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAiAAAAC4CAYAAADaI1cbAAAk5ElEQVR4nO3dfZAkZZ0n8G9m1vt7VVe/v0zPMNMMAygirqCAC4riKeJqKMt6hqFxd2psuHdx57pxi3t3cae7sXtxF7oXcZ4R5+mu64rvDIgIgqCIgIPKiLwM89bvr9X1/l6Z+dwfWVU9Nd3TUzNTnZlV/f1EEE1XV1c/U0/Wr76Z+cunJAACREQAhBBYrgInikBOA1RWByLqEIcEBBXggA8YdAESGECIqG65IvCrrNWjIKJe98YQ4LB6EERkH8eLxtdhF3C539h... | 1 |
math | grade-4 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAio0lEQVR4nO3da4wlZ33n8V/VqXPr+2V6unum52pjh8ASEQhLgtaAwFpiggMSWiSSbBASYQXJYggXwzi+YWNYiG0Sc0ukKMgQyYiVhbM4CIcsmCA7wRYhgTUGPDM9fb93n0ufS1dX7YuB81T3dPdMz5zuOlX1/bw6z5nT08/M1ItfP/Orf1m+7/sCAAAA0BR22BsAAAAA4oSADQAAADQRARsAAABoIgI2AAAA0EQEbAAAAKCJCNgAAABAExGwAQAAgCYiYOOyFL+7qrM... | [
"yes",
"no"
] | null | 1 |
math | kindergarten | one-less-with-pictures-up-to-10 | true | true | Count the dots in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABeCAYAAAAZpWPpAAAKBUlEQVR4nO3df2zU9R3H8ddde9frD2hpaaGMn0XDL6Hzj7nJIGDizIxRXDDZr2Ruw8XFqGNZls1txixb4mayZfMPgSxk6qbZHzPMSJyK4o9Rt+iiiJZfi9pSEOnvliu93l3v9gdeFCk9oN/353N3PB//tH993m9ef7364XvfC2Wz2awAAAAABCLsewEAAACglFCwAQAAgABRsAEAAIAAUbABAACAAFGwAQAAgABRsAEAAIAAUbABAACAAFGwAQAAgABRsAEAAIAAlft... | null | [
"iVBORw0KGgoAAAANSUhEUgAABMYAAAB2CAYAAAAjiJ+qAAATQklEQVR4nO3de5DdZXnA8efsLZtsSEISAokQSBCTcAk403qFitVaHUV0sFNbnXpBR8crHcep2qLTVsdqR6dqK3EsVaw6namOWhjv4o3YVltFTIBgxQSCkNuGJJtks5ec/rFGjG725HLe33Mun88/y1+/9+W7O+xzHs7u1iKiHgAAQFPU6/V4aCzi/w5E7JuMmDBtA0DL6KtFnNYbccGciDMHImphMQYAAE3z0KF6fH9v9i0AgEYePy+iL/sSAADQSX56YOrj0oG... | 1 |
math | grade-7 | similar-and-congruent-figures | false | true | Are these shapes congruent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD8CAYAAABNcdMMAABNvUlEQVR4nO3deXRb5Z0//rcW77ssb5Idb7IT4iy2Q1LodErCmh+EFGgohrankw4t6ZeewhQKoQG+ZSml6w84dKCEIbRlgND0x5ZOkk46TSnTlhC8O8S24iW2ZFneF9mybEu/P651bcWSnEXWvZLer3NyFMlX8kcHlPvWc5/n+ShcLpcLREREREQUEEqpCyAiIiIiCicM2EREREREAcSATUREREQUQAzYRERERDJx9OhRXHPNNdBoNMjKysKtt96K7u5uqcui88SATUR... | [
"yes",
"no"
] | null | 0 |
math | grade-6 | which-is-the-better-coupon | true | false | The original price of a footstool is $47.00. Which coupon is a better deal? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAATwAAAC4CAYAAAB+U1B8AAA/NklEQVR4nO2dd3xb1dnHf1d7WJZlS/KQt51hO4mdTXZCBivsETalQAuUvi/vBwrdixZaaIGWFigFyqYQdkKAQMgge8cZjuMk3lueWta87x+ybMm69+pqOXJ8vnz4xL733HOPZN2fnvOc5zwPRdM03eYATlsBkxtw0SAQCITzAhEFqITABAWQLgGoNjtN7+0/18MiEAiE+DI3GRDVWL2/ZEqASUqvGhIIBML5gMkNVFuAVgdwygoI+l3eE0TsCATC+YZK6NU2ADC... | 1 |
math | grade-4 | measure-angles-with-a-protractor | false | true | Is this angle acute, right, or obtuse? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEVCAYAAADaTZLyAADnDUlEQVR4nOy9dXhc6ZmmfxeXqsTMDJZkySTJssxst+1mTNKQzqSTzGwGNrszOzu/nd2dmZ2F7EBmJxNOmtLctrvNLLNkkS1mZixBlYrr90dJx5ZRsmXq/u7r8nW56JzvSFWl57zneZ9X5nK5XAgEAoFAIBAIBIJ5Qf6wFyAQPE4YDIaHvQSBQCAQCASPOEJgCwSzpLW1lT/90z992MsQCAQCgUDwiCMEtkAwS/Lz83nnnXfIz89/2EsRCAQCgUDwCCMTHmyBYHasXr2... | [
"right",
"acute",
"obtuse"
] | null | 2 |
engineer | grade-6 | evaluate-tests-of-engineering-design-solutions | false | true | Which of the following could Abdul's test show? Abdul wanted to build a bridge across a creek. The bridge needed to be 3 m long and able to support 150 kg. Abdul was not sure what type of wood he should use. He found affordable boards made from either pine or fir. But he was worried they would break too easily. So, bef... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAEICAYAAAA0p80lAAEAAElEQVR4nOz916+t637fh32et/fRx5i9rL7XbqfxFPIckpZMUQRlORISxeU+EEIYEWzkLn9AchEhsAEHMAIEDpAAtgAGkmJZhkiaRYen7b3PPruvvmYbc87Rx9v7m4t3kfFfoO0Aem7WzSxrjDHf7/Mr3yL+4A/+oOHfnn97/u35t+f/j84//sf/+Gv5vQqAMvmvmeyMoCxYreYgSyw2CYenEy4Wt4x29nlxecXubp8gXJH5cHoEGiDpGs8vc242cHRso6gV603KeKK... | [
"if a pine board could support more weight than a fir board",
"if a pine board would support a 150 kg weight"
] | null | 1 |
math | grade-3 | parallel-sides-in-quadrilaterals | false | true | How many pairs of opposite sides are parallel? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD6CAYAAACbKDARAAAolklEQVR4nO3daXjUZZ7u8ftfqWxF9pUgAoogqNA2IC6g7Ih227aMu6gElZbjdPdMz/TMm/PyvDjdc64z7fRc49qAgorL0Xa0bZBVlEVBUGgVQRYRCEllq0qlkkpV6n9ehFQloSoQqNS/lu/nlU+oIj9J5bruPLnreQzTNE0BAAAAiAmb1QMAAAAAqYSADQAAAMQQARsAAACIIQI2AAAAEEMEbAAAACCGCNgAAABADBGwAQAAgBgiYKegNS836r//X5PVYwAAAKQlg4t... | [
"1 pair",
"no pairs",
"2 pairs"
] | null | 0 |
math | grade-8 | base-plans | true | true | What does this object's base plan look like? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADxCAYAAADx78DSAAAyQUlEQVR4nO3da3jU9b33+08ScoAkZGJixgQwIWqglCCSQoGrmnhL24UXGDzUCm0F2ZDSfd0uSFEve6skoO67rUhAe7eStBKoEFtPIbhh1YWS4i4HWYEsRjDBGibk1MnBHAdzmsl+MM4IyiHATGaSvF9PbEIy8x365MPv+vx/X7++vr4+AQAAAHALf28PAAAAAAwlBGwAAADAjQjYAAAAgBsRsAEAAAA3GnYBu6WlRWvXrpWfn58eeeQRtbS0eHskAAAADCF+w+kWka1... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA1AAAADxCAYAAADFs1bnAAA8GUlEQVR4nO3de1TVdb7/8ScgSAJuDGQHalwqcCxMpUxdFXhymmNHwy6n0i6ak4ydcxo1q2lmStBqTk3lJec3ozAn0cloajK8jE0dyz118npQjjsNrGCjXNpc4m7cNvz+2LLHCg3l8t3A67GWy9jC/r6A1Vrf1/q8v5+PR1tbWxsiIiIiItItPDw8jI4gPcjT6AAiIiIiIiJ9hQqUiIiIiIhIJ6lAiYiIiIiIdJIKlIiIiIiISCcNuAJVVVXF8uXL8fDw4MEHH6S... | 0 |
math | algebra-2 | describe-linear-and-exponential-growth-and-decay | false | true | How does h(x) change over the interval from x=1 to x=3? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAABtuklEQVR4nO39e3hUZZov/H8rdUjlXCEJSQhJEBEUJEAgYDgoDrY6ajsCKtjTbTuX3e+2d5+vvaevfmd6929Pj+32uqYPbzvqdPeeHg97994qB+0WDIgNCiZAIEIgAREjhARSlVRSVanzWqvW+v2RVEgggapkPVRV8v38w5VKrTs3a1U9666n7vUsg6ZpGoiIiIiISBdpiU6AiIiIiGgyYYFNRERERKQjFthERERERDpigU1EIzz44IPYsmXLqL87dOgQ7rjjDsiyPOr... | [
"h(x) increases by 600%",
"h(x) increases by 6",
"h(x) increases by 3",
"h(x) increases by a factor of 6"
] | null | 1 |
math | grade-1 | two-dimensional-and-three-dimensional-shapes | true | false | Which shape is two-dimensional? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAADbklEQVR4nO3VP24VVxyG4d9c/ykcIA0iygJIlsAG0mZxacg+YA007ADsPo5IZYMlHF8NxQgpG7h5Bfd5mpmj03zNq7Os67pe389c3c3c7mce1gEO5HSZeXwy8/xi5qfzmeX687q+valnwfF58WTm9PJuO/x8PvPrD1udwGHc7mfefZr5637m/d3M7uZhuxAfHN7jk621mZmP+5nd/j8XwOF9be3fdWbXToHjJkAICRBCAoSQACEkQAgJEEIChJAAISRACAkQQgK... | 0 |
math | kindergarten | ordinal-numbers-up-to-fifth | false | true | The first picture is a bucket. Which picture is fourth? first | "iVBORw0KGgoAAAANSUhEUgAAAaUAAABdCAYAAAAFZHluAAAclklEQVR4nO2df1AUV7bHv909MwIyg+BvmGg0IDAxaNQFspUYNoplNhKNsC8Rk4rkF27VC5KKmnp5mmB0922U5AmmKmKMuFsVNcng7qqJeYPmkWSr3pDSJ1FrUNGsJgOYaHjCKCgz3f3+aGaYgfnRM0zPj577qaKU7p6+Bz2cc++5555D8TzPg0AgEAiECIAOtwAEAoFAINghTolAIBAIEYNkTumGlce0/+rB/V9acMNKIoQEAoFA8E1ATulvnVZsOnfbq7Npum7D5V4... | [
"crab",
"boat",
"bucket"
] | null | 0 |
math | kindergarten | subtraction-sentences-up-to-5-what-does-the-model-show | false | true | Which subtraction sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAPoAAAAyCAYAAAB1V8bkAAAPbUlEQVR4nO2de2xc1Z3HP3fm3rnz8ozfzzgxDo7zNIkJId6UpkQEEgoEQYqyZZeGUlYt26q7XaHSlbLtaldV9sFu2aU81LSiqFFFgVZBkMpLUTaQjSEBJyIBYzuE2I7jR2xPPB6P53Ef+8fYM7Zn/MxMPJ7cr2Rl7r3n3HM+md/33nPPOfeMoOu6jiFDhjJapoWugCFDhlIvw+iGDF0HMoxuyNB1IMPoi0Qt575Y6CrEaT51MjhSp+nqJF7Dehiap146+DoNJxqp21T... | [
"5 − 4 = 1",
"4 − 3 = 1",
"4 − 2 = 2",
"5 − 3 = 2"
] | null | 3 |
math | grade-3 | compare-area-and-perimeter-of-two-figures | true | false | Which figure has a greater perimeter? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALAAAABiCAYAAADwQVl6AAANeklEQVR4nO3de1BUZ5rH8S+NDcQL0pG7MClRxEFqEi6RuMkkEYmijjEyEttolbWWFXfRHZVKOyKa2lKJAUO85FbmAo7RGBNWA6ZWIoYKsIkQy7QworhsEIoWE7G8IN3K9d0/CCSkAVEbTh94P1WU9nlP08+p/vHS/XDePg5CCPFTE/yfBW61QotAkuzWMAcY5QiBw8HLCRx+ahTi+3qly5KkexfpCsMqLO03fJwgaER7uiXJXt1qhQtmuNwE/2sBTX1L+4AMr6Q... | 0 |
science | grade-4 | use-data-to-describe-climates | false | true | Which statement best describes the climate of Adelaide? Hint: Summers in the Southern Hemisphere occur in December, January, and February. Winters in the Southern Hemisphere occur in June, July, and August. Adelaide is a city in Australia. It is located in the Southern Hemisphere. It has a mediterranean climate. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAALOCAYAAACTXGSDAAD1PElEQVR4nOzdeXyU5b3//9ds2fedkISQAAkhAcIWCJuAIJZNFheqVqr1q7a2tNVu1p7252mtpz3ac1x6zrG14taqKKCERQUhLELYEkIgCSGEbCzZ92TW6/dHyEBIkCCTzKCf5+NhS+5Z7k/mvnPPe665Fo1SSiGEEEIIIYRwCK2zCxBCCCGEEOLrRAK2A2RmZqLRaNBoNIwbN87Z5YhvoDVr1qDRaBg7dqzDnvOrnte//OUv0Wg03HPPPX1+zJkzZ+z7amho6PPjYmN... | [
"Summers have more precipitation and lower temperatures than winters.",
"Winters have more precipitation and lower temperatures than summers."
] | null | 1 |
math | grade-5 | median-find-the-missing-number | false | true | Manuel has the following data: If the median is 27, which number could p be? | "iVBORw0KGgoAAAANSUhEUgAAAQ4AAAAkCAYAAAB48dRBAAAIMklEQVR4nO2ce2xT1x2AP79im8QE5/2AOCQhoU0IDLICFZQwCKW0iGobHa2AlqlF7bSqm0Co27QNDYTEmCZ1UyexqotgjJV1Ki1MlIytFGghpQERIBAgL0KwQ94PB8eve/eHQ0gIdHbiawdyvj/Pvcf3u8e/+zvnnnNslSzLMoBHgl4XSDLICAQCgQ8VoFaBIQK06r4yWZblXjc4PWF1EwgEDwF6LRh0oPZIImkIBAL/cHp8bydqpzvcKgKB4GHC6Qa1Vwq3hkAgeJj... | [
"29",
"2"
] | null | 0 |
science | grade-3 | identify-rocks-using-properties | true | false | Select the one substance that is not a rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEGCAYAAAD2aACLAADOtklEQVR4nOz9Z5Bk6XnfC/5O2pPem/Kuy7T34y0wAEkYUqQoUpfUajekJUNLxe5V7KeNG6GVVrEfpLixoRuhkBQ3VqG7IikCdMAAGIfBzGDQ0zPT093Vrrx36b3Pk3ncfjhZB8AlJN1LcjCG9Y+YqKzqmqrMrPOc932f52+EO3Vdn/eAz8oJTnCCvwSaKmy0IduHkA2eCRpft5wU1glO8FeDzwrzHuNxS/3x1y0nhXWCE/zVcVxHsv7jr1k+madyghN8/nFSXCc... | 2 |
math | grade-3 | reading-schedules | false | true | Look at the following schedule: When does Laugh Ha Ha, a Comedy end? | "iVBORw0KGgoAAAANSUhEUgAAAZsAAAD3CAYAAADL2fltAACeX0lEQVR4nOydeVxP2f/HX5/2lHYlSZuohCgp0moJIZJ2ZGaIsYxlZsoYM0bIMraMqbGMZSilFFkyVNaxFFGWqFQqoYVU2s/vj36f++32+XzqU2qYmfN8PO6j7jnvc877nHvved9zzvt+DicwwICAQqFQKJQuRAwAZrh/9ZHVoFAoFMq/lYjw7RD52EpQKBQK5d8PNTYUCoVC6XKosaFQKBRKl0ONDYVCoVC6HGpsKBQKhdLlUGNDoVAolC6HGhvKv4KCwhI4Ov+I6V5... | [
"2:30 P.M.",
"1:50 P.M.",
"12:05 P.M.",
"1:15 P.M."
] | null | 0 |
math | grade-8 | apply-multiplication-and-division-rules | false | true | The number line shows an unknown number, x. Is – 2x positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGXklEQVR4nO3dT2iTeR7H8U+SJilJa830j9tdrB2G2UNXELHGVlxx2MPOIi6kIwOyjDi4uCjePe2tCMIyJwUF2YODIgzUAfcwe5pNe0nSRqcQml3cwU7VWW2NjrVpmqTNs4eYaLF/ZjA+v6eT9+v0PE97+MATwoff883vcVmWZQkANpBr167J5XLpyJEjpqPAJtxzABtJg+kAAPBT3bt3z3QE2Ix7DmAj+dEFu1gsKplMKh6Pq6Ojg1UEvBWlrKWn/3yu+YkFzafz8rZ... | [
"negative",
"positive"
] | null | 1 |
math | grade-2 | select-three-dimensional-shapes | true | false | Which shape is a cylinder? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAU60lEQVR4nO2deXRUVZ7Hv/dVKnuobATIQgghBDBI2BtQQLBpRKMoCtjt9ESlG2c8Zzxtt63d09qjzjhzZLD7ONMLthq7p1WMogIGEWU1shmSKIuEAElIgBASsu+pevPHq1dbKkvdvO1W3Y/nWC/17rv394pbt37b/T0iiqJY2wOc7wBarUCfCA7HcAQRIMoEZIQDY4IBUtstisdb9BaLwxk+80cBQeUd0h/jgoHMCGlWczhGo9UKlLUDV3uAcx2A0NInneCTlmN... | 1 |
math | grade-3 | 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? | "iVBORw0KGgoAAAANSUhEUgAAALEAAAB2CAYAAACHxHLJAAAst0lEQVR4nO2deXRcxZ3vP1W3u2VJlmRJ2JItC4NXbBaHHYcgEkiAABkCZFjC8JIQJiScOS8k5AyZxCRz5uWE8DIv5E1mSF4ywDhkwuJhDHkkDAnbwyE2XgCDAa8EW5KxbGuxlu5W33ur3h9Vd+mWbCxbaklG33N0Svf27b73Vn1/3/rVrzahtdZMYALjGHK0H2ACEzhSTJB4AuMeEySewLjHBIknMO4xQeIJjHtMkHgC4x4TJJ7AuEditB9gAsWH6tiJan4dvf89VGc... | [
"impossible",
"certain",
"unlikely",
"probable"
] | null | 2 |
math | kindergarten | rectangles | true | false | Which shape is a rectangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAH40lEQVR4nO3dz28TRxQH8O/u+ge2EwfbUktOcCgFqSoSoCoSgUD+8rRAkGhFK7VCIoUDqIekB9vEiW1sZ709uFVbWiC7M/Pmjf393BAkjLxfe3ffvLeOsizLjqbAqxFwkgJnGYiMlSJgPQGu1oHPK0B0NMmy7we+l0XLbKsJlF6OFn/YrADXGosUEpk6SYGDIXA4BX4dAfHgbPEXDBnZtJ4sMgUApykQp//4CyKb/srULANiv0uhVcGgkQgGjUQwaCSCQSMRDBq... | 2 |
science | grade-3 | predict-temperature-changes | true | true | Two identical blocks are heated to different temperatures. The blocks are placed so that they touch each other. Heat can flow from one block to another but cannot escape from the blocks. Later, the temperature of each block is measured again. Which pair of temperatures is possible? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAACgCAYAAADq8hJGAAAW5klEQVR4nO3daXAkZ33H8W/33IekGZ2rcw9712tsgzEGbLDB3CaAzVHgQEJRcYWCVCpH5eAFJqlUQqBIihQkVSFUQsxtcxhYGzAYA8YGbFgg3tjYWe+lcyStpLmn5+ruJy9aalmrWe3srqQeSf/PG3t7Dj3S0/Pr7v/zTD+aUkohhBCA7nUDhBCtQwJBCOGSQBBCuCQQhBAuCQQhhEsCQQjhkkAQQrgkEIQQLgkEIYRLAkEI4ZJAEEK4JBCEEC4JBCGESwJBCOHye92... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAiAAAAC4CAYAAADaI1cbAAAjrUlEQVR4nO3deZAkV30n8G9m1n11VXf1fUzPaLo1Gh0IIQTCEodAIJZDGAJk4SUcEHYYwoF3YxfjWAvvbuyCHd4N74I3YjERZoUPQCCu0YCEhARCsiyJEaCxLkYz09Nn9V33XZn59o+sqp4+pqd6pjozq+r7iSAGVVd3v+73+lffzPzlKwmAABERACEElsrAmTyQ0QCV1YGImsQhAUEFmPAB/S5AAgMIEVUtlQR+kbZ6FETU7t4QAhxWD4KI7ON03vh30AVc6Te... | 1 |
math | grade-1 | more-less-and-equally-likely | false | true | If you select a marble without looking, which color are you less likely to pick? | "iVBORw0KGgoAAAANSUhEUgAAANkAAACRCAYAAABOtR13AAA2uUlEQVR4nO2de5gU1bnuf6uqe67MDDOTYYARQe4gSvCKGkfFKBj1KJiImJhka3Y0nv08SWQnasRs946AHhPNPu6tJjkxm3iMGEJQjzuIiZdgFBTwBiIiEGFmYBDmwlz6WrXW+WNVVVfPDDA909Nzsd9Hn5qqrq5eq+i3v8t6v6+EUkqRRRZZ9BmM/h5AFlkMdWRJlkUWfYxAfw8gi4EP2bgPWfM+6sgBZFMdqnk/KtSMKBmJUTIKUVqFKK3CPHEWorCsv4c74CCyMVk... | [
"black",
"orange",
"neither; black and orange are equally likely"
] | null | 2 |
math | grade-7 | classify-quadrilaterals | false | true | What name best describes this shape? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACuCAYAAAAMN3rwAAAbC0lEQVR4nO3de3SU9aHu8eedhGSSDAkJhEzCJORKsCqsbsVutFwqKCrdoFhkUaK7h7XO0bbHapd2Hxc9SNW1rNvLant6enav9lQTOUhFsVoVQbfYShXp3iothEuuQ8gFEnKZzCSZzHv+CAQIqLm8k3dm8v385xBmHhb88Tjr93sfwzRNUwAAAAAs4bA7AAAAABBLKNgAAACAhSjYAAAAgIUo2AAAAICFKNgAAACAhSjYAAAAgIUo2AAAAICFKNgAAACAheLtDgBrtQT... | [
"trapezoid",
"parallelogram",
"rhombus",
"square"
] | null | 0 |
science | grade-3 | classify-rocks-and-minerals-by-color-shape-and-texture | true | false | Select the light gray rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAABwnUlEQVR4nO29eZBdx3kf+uuz3X3mzgoMABIgKWshKZlMZEumbDn+49khpVjx8mLZL09lu16ceknKea9crnKcqOKKLetVpfz8Uo5LsSVbFhXtFHdSFBdJpCASpMRFpEASAklQAAbALJiZu997lu73R5+v73d6zr0zALiBmm/q1r1zlj59uvvblxZKKYUd2IEdyAXn9e7ADuzAGxl2EGQHdmAM7CDIDuzAGNhBkB3YgTGwgyA7sANjYAdBdmAHxsAOguzADoyBHQR... | 1 |
math | grade-3 | select-figures-with-a-given-area | true | false | Which shape has an area of 4 square units? The shapes are made of unit squares. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMIAAABoCAYAAACjZi+5AAACgklEQVR4nO3cvW5cRRiA4eesf4qQnwaBuACgSeoUFPgCyP1wB3A9CT2moEmbNCH0GEGDnViK8WooVpYQDRLZswet36exVyvNN5Ln9dEWO9MYY5xd8fMlF2uuh2TvHU7cO+DTO3x8zHT2bozn50tvK1nO4/scvr7cvPjkmM8/2FSS7LuLNa/e8ssVP12yOr/evFEEuU3uHWzOPLxZs1r/7Y3kNrk5838OVstuJfl/KIREISQohASFkKAQEhRCgkJIUAgJCiFBISQ... | 1 |
math | algebra-1 | special-right-triangles | false | true | Find j. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADJCAYAAAAZxkUSAAAlaklEQVR4nO3de1yUdcL+8WuAgRFEgTDBEwyYZthR7aDuL3OfNTtYokjnJ58OW1nPqmXW7qttdfO3lh3UzXwq0+3olpqHrNXcUvcptE0pLdGUw4BAgAcGOQ4MM/fvD/bnpnkCB+4Z+Lz/ima474sOr9flvC6+t8UwDEMAAAAAfCLI7AAAAABAe0LBBgAAAHyIgg0AAAD4EAUbAAAA8CEKNgAAAOBDFGwAAADAhyjYAAAAgA9RsAEAAAAfomC3A9VupwqqsrTKMU/O+jK... | [
"$2 \\sqrt{3}$",
"4",
"1",
"2"
] | null | 1 |
math | grade-5 | mean-find-the-missing-number | false | true | Clara has the following data: If the mean is 71, which number could w be? | "iVBORw0KGgoAAAANSUhEUgAAARAAAAAkCAYAAABBlmUaAAAIZklEQVR4nO3ca1CU1x3H8e/eWFzYBZE7CiIXAQURCcXQaEK8JIY4JmkdnabtpO00dpI2l5mkl2kz7UyvL5pMZjJJJzNOJo2tmFonNdXaxFsURERUELmpgLCwynJfWNgb2xeLG1eSYdl5HhfS83nH2bOc38zZ/T/Pc57zrMLtdrsBnE6YmIDJScCNIAiCLwUolRAaCmr1VJPb7XbbJsBmC242QRDmD60WtKGgdjlF8RAEYXZsNlCpQSmKhyAIgbDbQOlyBTuGIAjzkcs... | [
"63",
"49"
] | null | 0 |
math | pre-k | circles-squares-and-triangles | true | false | Which shape is a circle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACTCAYAAAB28ADfAAAKsUlEQVR4nO3dfWxddR3H8fdte2/b3XZd27vndVs3to5skxXBDcfDxhzBTUgWSTSaGGPgD5UQNRITDcSIMTE+JWpIfIgxRiSKGuMAkYcJ42kwxxDYWCnbunawbmtvWW9vH27v7fGPX6tVHsZ6fk/n3O8ruelIw/f3zTmf/u655/zOuYkgCILeArw+DLkSFAOECK0qAfWVsGoWzE9BoncsCJ4fdN2WiLONs6Gqc1j9x8IUtKVVCoUIK1eCjjycKsBrw1AxWFS/kJA... | 0 |
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 | [
"iVBORw0KGgoAAAANSUhEUgAAAJAAAADqCAYAAABN/8wfAAASNUlEQVR4nO3deXCc5X3A8e/77n3rPmzJNghbCGMbYwdfEIwptnEuwBxJQ0poQxI6yXR6MJm2yTSTmbSZNBSSdNqENpm0OUjrOgEMATtAzGWwjcNhbCMLHzKSdWu19/Xubv+QrSB5dfnxenel3+cPBu377Ps+a3/9vu8e2lfLZrPZ7iS8F4VQGowsQozLrIHHBAudUGsFrTuRze4LFnpaohSt8oK5LTr8Q70Vml3DdQkxnlAaWiPQlYSjUdCDxvACiUdMhcc03Ap... | 0 |
math | grade-1 | addition-sentences-using-number-lines-sums-up-to-20 | false | true | Which addition sentence does this model show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAW3UlEQVR4nO3de1BU590H8O9ykyB3BZEUQeiAlxDwEhFNophqYm5qolQzmUgaY2rasdWOY4zpRCOtpmlSfWMmE+tMqDU43grGpLz6jgngFLmIoFFHjRoQXDAuuITlvrLvH6dnuSq7y4HnnOX7mWF29yxZf78sy3559nmeo7NYLBYQEREREZEiXEQXQERERETkTBiwiVTgkwuA527g2f8VXUn/sA91cZY+iIi0xk10AUTOrroRGOEJuPfy56yxFXgtG/i/m4CH62BXZh/... | [
"2+4=6",
"3+6=9",
"4+6=10",
"4+4=8"
] | null | 3 |
math | grade-2 | match-analog-clocks-and-times | false | true | What time does the clock show? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEJCAYAAADhBFPCAABgS0lEQVR4nO3de1yUZfo/8A+IAwJjynAQPA2o4IHpRAWoBUppB8FK25S23XaV9ldbSfstK9zttCudtl2obbdN3dqt0Eo0wdZDopAmWKLV4GFQh7FscJDxwDAIA8LvD3YmRubwzDDDzMDn/Xr5Eua5n+e5VObl9dxz3dft19XV1QUiIiIiIhoQ/D0dABERERERuQ4TfCIiIiKiAYQJPhERERHRAMIEn4iIiIhoAGGCT0REREQ0gAR4OgDyvIuGS2hp64C+taP797bu3wO... | [
"4:25",
"5:20"
] | null | 1 |
math | kindergarten | represent-numbers-with-shapes-up-to-5 | true | false | Which group has 4 triangles? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAJY0lEQVR4nO3du24bBxaA4SNbcoBskibYXWyClLv7CGnyECnS5SG8iIG4UjpfOru3H8B+Axt+AqXzGpYgR4VgCNjIKgSECa2hSM4WhGNZN95mDofk91WhLsYcg/lFajxnVsqyLH/tROy0I1q9iG4ZAJVYXYn49GrEPz+O+Pu1iJVfi7L8+bdZHxaw6L7+LGL1l/bgwT+uRfz7L4MaAVSh1YvY/iPif52IV+2IK791B58QG6Bqn14dtCUi4vdexJXeiU8AVO1dW47... | 0 |
math | grade-2 | interpret-tally-charts | false | true | Emily washed some vegetables. This tally chart shows how many of each type of vegetable she washed. Did Emily wash fewer pea pods or beets? | "iVBORw0KGgoAAAANSUhEUgAAAZ8AAADWCAYAAAAOwo+EAABOzUlEQVR4nO3dd3hUVfrA8e/0ySQhIQkGCCXUACIJVUDBgCwoTUVAUUFg8Qd2ENuiiKggYluwAIKKuLi7qIA0ZVVAkCoIQSmhxARSKOmTTC+/P4ZMMmRmMmmTdj7Pw8PMvffce2aSzDvnnPeeI8mZgh1BEARB8JPQz+xIa7oSgiAIQsMjgo8gCILgdyL4CIIgCH4ngo8gCILgdyL4CIIgCH4ngo8gCILgdyL4CIIgCH4ngo9Qq2VE9Uf7gZFL7xSgDW5V09URBKGKiOA... | [
"pea pods ",
"beets "
] | null | 1 |
math | grade-3 | identify-faces-of-three-dimensional-shapes | true | false | Which shape has a square as a face? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAARJ0lEQVR4nO3dXWyb1RkH8L/TuEmcuI6bj9ImXdMPJy1bP0ZXIboybUKbkKBiu9mkSRtMmgQICe1iVwgmIU3TBGIwpGnaBRLazZiQQFoRVyA+VLUSIKAqE2sLqJCSxE7SOIntOE5c78Lved+YpG0Sv+ec5zj/381WNzSnUv497/ucc54TqVQqlbES8FkBmC0DixUQkSbNESC+CUjFgG2bgcjYfKXy3oztYRFtPLdvAZovFaq/2L4ZGGqvppOI9JgtAxfywGgJuFg... | 1 |
math | calculus | domain-and-range-of-exponential-and-logarithmic-functions | false | true | What is the range of this exponential function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABiN0lEQVR4nO39fZxU9Z3nf7+rq6rvu+mmG7uxtRsRQUG6FUUFQXAw6mhiApksJldunMuZjNkYs9nHL3tl55dkM/l5uXnsTDITx2Sz2clGnV9+VzZO1ESwIRgQSBNBWmjoVgFb6Buw7+i7qq6bU1XnXH801aG5kS44X6oKXs9/tIpz3v2pc6pOfepb3zrH4ziOIwAAAACuyEl3AQAAAMClhAYbAAAAcBENNgAAAOAiGmwAk9TU1GjHjh0Ttw8fPqwZM2aoo6MjjVUBAJA... | [
"$\\{y \\mid y<-1\\}$",
"$\\{y \\mid y>-1\\}$",
"$\\{y \\mid y \\leq-1\\}$",
"all real numbers"
] | null | 1 |
math | grade-8 | identify-alternate-interior-and-alternate-exterior-angles | false | true | \line{FH} and \line{IK} are parallel lines. Which angles are alternate interior angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD2CAYAAADs6vBqAAAfyUlEQVR4nO3df1BVdf7H8dcFBBUVXCwJZg1XcSl1UUD8RQKOjrW5CTtZbbVSkza1pWOb1u6WDpO77UxqkdTMlsyumk2LtnXddguTRDYjRQ9CRro5Crrl6CYJKBIk3e8fLXeXLxfU7rn33Mt5PmaYkftBzut8/nr58X3PdbhcLpdsqLGxUZIUHR1taY5gxf4BAAB4FmJ1AKts2LBBGzZssDpG0GL/AAAAPHPY9QQ7ISFBDodDdXV1VkcJSuwfAACAZ7Y8wXY6nTp+/Lj... | [
"\\angle{KJG} and \\angle{HGE}",
"\\angle{KJG} and \\angle{FGJ}",
"\\angle{KJG} and \\angle{IJG}",
"\\angle{KJG} and \\angle{FGE}"
] | null | 1 |
math | grade-1 | subtraction-sentences-using-number-lines-up-to-20 | false | true | Which subtraction sentence does this model show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAWfUlEQVR4nO3de1BU590H8O9ykyJXFVRSwgopGAyClwhoU7yM5h61RqqZTMTWmJj2tdGMY0zsRBNaTc1FJ3QysZmpsSmOigVjWkff1wg44SqCVhlNoy5IFgwLgiwXYWXfP45nYUGFXQ6cy34/M8zunt1Zfz9dPN99znOeo7NarVYQEQ1SlRlY9n9AwY9AyWJgerDcFTmHfRAR0WC5yV0AEanfYQMQnymEOjVjH0REJAUGbCIalJsdwJL/BdZPBnYkyl2N89gHERFJhQG... | [
"7–7=0",
"7–6=1",
"7–3=4",
"7–5=2"
] | null | 2 |
math | grade-4 | acute-right-obtuse-and-straight-angles | false | true | Is this angle acute, right, obtuse, or straight? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABwCAYAAAAkAwevAAAJQ0lEQVR4nO3dX2zV52HH4e/xcQzG/1ggZstIMGzBdlMvNKsyMxqVimy3TVVpVVVNIZV2H3azTVUlNGlTp0lTejd10uKbbtKkqaTaxaRRiTRLoW3asZJASBTPSRdUTMjgBMcYbJ9dGEwS2WD7nPMLx+d5rvCxOe97+dGr90+pWq1WAwAA1EXbJz0BAABYTwQ2AADU0bKBPXF+JpeuzBU5FwAAaHrLBvbJ8akc/qe3i5wLAAA0vdsE9pV8+/vn8r3jF4ucDwAANLVlA/u... | [
"right",
"straight",
"obtuse",
"acute"
] | null | 1 |
science | grade-8 | 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 | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAX8UlEQVR4nO3deXgc9X3H8ffsale7OnzKJ8gHGIPBYAdzJQ7ggEMagsnFlbZpnydJ0yYtbRqalKdJnqQkaRtI+jwhSZO2afKkHAFCIRhzQ0zANkEGYxt8G9+HZEu2rGvvnf7x1WplaW2vrfXMSvq8/lnpt7OjnzSzn/nNd+andVzXdRuTsLUL2jOQdhERKYkKB2qDcE4VTAiD05hw3YY2v7slIkPd5SOgYkuXfTMpDOdWWxqJiJRCewY2dcL+JGzugkBb2p5Q2Ih... | 2 |
math | grade-1 | compare-money-amounts | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAmoAAACiCAYAAADx9uGPAACvYklEQVR4nOy9d5hcd3X//7r3zp1edrb3XtVXq95ly5K7bGzcANuB2NQ4CQQCOCGFJL/vk9C+fANOjAFjAzbGWMZyV5fVe12ttvdeptdbfn+s5mIBActBssDzeh49q7a78zk7c+Z8znmfcwRd1/XhBLRHIKiCopMmTZo0adKkSZPmPcAkgEuCGjvkmUEYjuv6ocB7/bDSpEmTJk2aNGnSvJ3FbjC1Rab/UGCGOsd0FJcmTZo0adKkSZPmyhNU4XwYhhLQGgExoEz... | 0 |
math | grade-2 | fractions-of-a-whole-modeling-word-problems | true | false | Carmen collects interesting rocks that she finds while hiking in the mountains. For show-and-tell today, Carmen is bringing her collection of 3 rocks to school. Which fraction model represents one rock of the collection? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAABKCAYAAAA2aaayAAACDUlEQVR4nO3XsU7bYBSG4eOQMATabq16AS1Ld26kW1cui5WNK2FmobA3XQlEgib6O1hRqw6fFErqVDzPZMu2dCRLr4+71lqbPVbdLKrmq6plK4AXa9xVvdqr+jCterdf1c0eWru4HXosgN1z/LpqfL3oT97vVx0d9AUFeKnmq6qr+6pvj1VfF1Wj22V/QSAB+g4eHfTHd6uq0eq3CwD86uGPVjUadhSA3SaSAIFIAgQiCRCIJEAgkgCBSAIE400f6E6m25gD4J9... | 0 |
science | grade-7 | 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 sizes and shapes. | "iVBORw0KGgoAAAANSUhEUgAAAksAAABwCAYAAAAOnzRFAAAb/0lEQVR4nO3deVxTZ74/8E8WkrAogqAFsUVZXECrpQhUp26oqHUARUVrF39tf9pW5tbb/dbbaW/bcdrb+7OdseqvY22hoFjbQhnUWxdERS/ihguuoNghAUQFFEhYktw/GFIpayDJScLn/Xr5epnknOd8Y845fs9znvN9RHq9Xg8iIiIiapdY6ACIiIiIrBmTJWojJiYGIpGo1R9PT09Mnz4dhw4dMqqt8+fPQyQSIScnx+g4tFot1qxZA7FYjM8++8zo9YmIiExBKnQ... | [
"The magnitude of the magnetic force is smaller in Pair 1.",
"The magnitude of the magnetic force is smaller in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs."
] | null | 1 |
math | grade-2 | estimate-to-the-nearest-ten | false | true | How many marbles are there? Estimate. | "iVBORw0KGgoAAAANSUhEUgAAAdEAAAE2CAYAAAA+gqihAAEAAElEQVR4nOz9e5BdV3nnD3/W2vuc0637xUiy1DIgWcLCtuQhEMu3GOQkECyqMlxS2BAm5E0Chl8Nw0AqQEKqhmRsk6TeQDIJmKl3DAZsAmZ+UxVfgInNxZYl2ySxJN+QZGxLrZtttdSt7j59ztl7Pe8f67LXPt0tdUut7pbcT5W9tU/f9l577ef2fZ7vo0REmJEZmZEZmZEZmZFxSzrVFzAjMzIjMzIjM3KmROq9mP1PAaA656FXXDKhv3/GiM7IjMzIjMzIOSP5ni1... | [
"about 20",
"about 50"
] | null | 1 |
math | grade-6 | absolute-value-and-integers-word-problems | false | true | Brooke is showing her friends a new card game in which you can gain or lose points. Whoever has the score furthest from zero wins. So, losing points can actually help you win! The scores at the end of the game are shown in the table. Who won the game? | "iVBORw0KGgoAAAANSUhEUgAAAIIAAAB/CAYAAAAjDxo6AAAXR0lEQVR4nO2de1hUZR7HPwPMDFe5COKVQDAMIW4K0rqaYnlBzSCxVkVAy3J1e9rS3UwtVl1XsnZ9Ki9bKm0hm2SrJrp4Xe9mWRYSioh3RUFkuAzMwMzZPwaPToOGOqjF+3meeXjOezu/95zveS+H8/5exd/eOi8hsCDlJU9WLim732bcM2zutwGCBwMhBAEghCBoRAhBAAghCBoRQhAAQgiCRoQQBIAQgqCRFhXC6HFtiRvp1pKnEFgJuzvJNCLBnUeCHeRjrdbI1fI... | [
"Brooke",
"Jill",
"Lamar"
] | null | 2 |
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 | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAXRklEQVR4nO3d6XMUd4Lm8W9m3aUTJEBCEojLYA7bXDa2BXYPG9One93j8cT0THvmzXhedcyL3Y19N/sH7H+wMREbu+venvG0u9cH08b4HE4DNjcGIZBAErrvuq/MfZGoQEhggYqskvR8IhwOFVWpn5RVj/L3ZP6qDNu27b40XI9DJAdZGxGRgvAaUOGBDWFY4QejL2XbpyaKPSwRWeheqARvW9z5ot4PG8ucNBIRKYRIDlpj0JuGa3EwJ7LOPyhsRKTQKjxOtgB... | 0 |
math | grade-2 | which-bar-graph-is-correct | true | false |
Bob went on a picnic and brought nine pies, ten oranges, and five bagels. He made a bar graph of the food he brought. Which is his bar graph? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAZwAAAEOCAYAAAC976FxAAB8p0lEQVR4nOzdeZycRYH/8U89V9/dc2fOXOQmkAAhXHKrgFwiKiuu53rgouiqiPtzPZYVxcWVxWNxxRV1EfHCW1EX5SbchCTknCSTua+evvu56/dHTyZEUFFI56Der9e8Zrr76X7qqZnpb1c99VQJKaUccWFbBYoB+BJFURRFecEMASkdFsZhlgVixJHy4cL+LpaiKIpyKDsuDcbWSu1GhwWLE7U0UhRFUZQXqhjA5jIMu7ClAlrBrz2gwkZRFEV5MaX0WrYAlAL... | 0 |
science | grade-3 | read-a-thermometer | false | true | Select the temperature shown by this thermometer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAGQCAYAAADbbRRJAAC30klEQVR4nOydd3hTZfvHvxlN0jZJN9DFaFktyFRaUPZ8xUlRQRDEAS4EVFyvE3CBynAgKMMtMvR1C6iACi0/B6utMlqg6aC7Sdvs5PdHOYeMk9Vmtvfnuno9zcnznDwn0HO+53vu5755ZrPZDIIgCIIgCIIg2gX8QE+AIAiCIAiCIAjvQQKfIAiCIAiCINoRJPAJgiAIgiAIoh1BAp8gCIIgCIIg2hEk8AmCIAiCIAiiHUECnyAIgiAIgiDaESTwCYIgCIIgCKIdIQz... | [
"45°C",
"35°C",
"10°C"
] | null | 1 |
science | grade-3 | identify-rocks-using-properties | true | false | Select the one substance that is not a rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEYCAYAAADPtGNgAADvI0lEQVR4nOz9V5BkaXbnif2uvn5daw8PLTIzUpfIUl1VXS3QQKMbwAwWM7a0EUYujUYjjS984QOfSTPygbY2w31YM5K7D+TOLBRnFoMZoNG6ukuLzEqdkaG1a+1XCz54ZFZWdzVGoBOoKcbfzMMjrrtfv3Hv97/nfOc753+ED/tRdC4OSYlTnOIU/wkYBrA2hmMXsjK8lplsF0+JdYpT/M2QlOBcfPL7KPh0u3hKrFOc4m+ORzzyok+3iX83h3KKU3z5cUquU5z... | 2 |
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