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-2 | identify-earth-s-land-features | true | false | A plain is a wide, mostly flat area of land without many trees. Plains can stretch for many miles. Select the plain. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOEAAAC0CAYAAABi8Es+AAEAAElEQVR4nFz9yY+lW7Llh/1sN193Gm+iv222r3+sYpXIYkmkQAkaCaqhNBKgkf4rDTQUJIATFQRBBZEABUEk69Vj1evzZb7MvHmbuNF5d7qv2XubBraPx61KIPJ6uHuc437Otm1may1bJv/iX/zvVQQUJaXCvL+lbwWJAyUn8nzi6mJNKco337+lbVuWnJG80HtH6AdCbPlw+4HXb97y8x//iM9fPuX1m7ccD3va2NA0LVfbnhgc72/2KIoLgeActx9u8f2KV8+... | 2 |
math | pre-k | are-there-enough | false | true | Are there enough tulips for every butterfly? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEECAYAAAASx0PMAABfGElEQVR4nO3dd3wc1bn/8c/Mrtpqd9Ulq1hy70WyKQbcC9UYCD0EGzAhgQBJaOEmwC8XcxMSTAuEEAgB29zQSUy/YGMbG7CNe7csWZLVe9dqtbtzfn+stZZwwdiStSOe9+vlRFrNzs7MN7PnyZmZczSllEIIIYQQQgjRJfSe3gAhhBBCCCF6EymwhRBCCCGE6EJSYAshhBBCCNGFpMAWQgghhBCiC0mBLYQQQgghRBeSAlsIIYQQQoguJAW2EEIIIYQQXUgKbCGEEEI... | [
"no",
"yes"
] | null | 1 |
math | grade-6 | which-figure-is-being-described | true | false | Heather made a 3-dimensional figure out of cardboard. The figure had a triangular face. Which figure could Heather have made? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANgAAABSCAYAAAA2CxpTAAASi0lEQVR4nO3de1hUdf7A8feAUqAw6ApJXmACTaUEL2EQrrDZmoGsqOC1AC9sP7wg4GXbNIbS2EUDtMxEa0BdL9hPwfQxfCQme5Sf+HMZW/k94eVhFC9kagyIyE1+f0ycjTTlMoch9/t6Hh6dM2e+5+M4H76X8zlnFI2NjY1ltXD+DlQ2QH0jgiC0URcF2FrCABt4ygoUZTWNjQUV5g5LEB4/o+ygy7k7xgdOVvBsN2P2CYLQNpUNUFwF12rh7B2wqKg3PiGSSxD... | 1 |
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? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAACgCAYAAADq8hJGAAAY4klEQVR4nO3deXRU55nn8e+tvUo7oAWtCCHEZoyNMQETbGxwx3YSO5NM0k7sTJNk+nTaJz3T0053Ts/0MtPJzGnHOXMm8eA5OdkhieNOvGDAC8QGzGZsswmQEWjf97X2qnvnj1u6QqgQEi50S9LzOYfj41JV6aree3/1vs/7Vr2KpmkaQggBWMw+ACFE8pBAEEIYJBCEEAYJBCGEQQJBCGGQQBBCGCQQhBAGCQQhhEECQQhhkEAQQhgkEIQQBgkEIYRBAkEIYZBAEEI... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAiAAAAC4CAYAAADaI1cbAAAkNElEQVR4nO3deXRc1Z0n8O+rfdFubdYuy7K8YQzGODbExmCTADFLk4SQQBJDJqcTDt2TCUlnOp1OT0IyE0LOmcliZnKyAwmhExavgA3Yxgt4wbuFN1lLad+X2uu9O3+8Umm1LNul916Vvp9zdHRcLpWu9G599av7fu+WBECAiAiAEAItIeC8D+iXgQjTgYjixCIBqWag0gXk2QAJLECIKKolKHCgT+9REFGyW5YGWPQeBBEZxzmf+nmmDahyq69WiIjioV8Gzni... | 0 |
math | kindergarten | one-more-and-one-less-with-pictures-up-to-10 | true | true | Count the squares in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABGCAYAAAD2IOMfAAABqklEQVR4nO3YQQ3CQBRFUUowhAEEIQhBGEDSx8Asb9ukOUfAz+StbmabmbkBAACJ+9kPAACAKxHYAAAQEtgAABAS2AAAEBLYAAAQEtgAABAS2AAAEBLYAAAQEtgAABB67HX4/X3udfpQn9cvvWeXNbus2WXNLmt2WbMLcDQ/2AAAEBLYAAAQEtgAABAS2AAAEBLYAAAQEtgAABAS2AAAEBLYAAAQEtgAABAS2AAAEBLYAAAQEtgAABAS2AAAEBLYAAAQEtgAABAS2AA... | null | [
"iVBORw0KGgoAAAANSUhEUgAABJQAAABeCAYAAAB1lk6EAAADzElEQVR4nO3aMW7UUBSG0WsykyIQaBCIBQA1VTp2wEZYEAshO6BMQ52EniBSZZKREjJ6FCadhfRLNhbWOc3rrKtbzLO+cVdVrQAAgFG01urirurbtmqzq7r3tg3AAqy6qsO9qtcHVS/3q7oSlAAAYDQXt61OruaeAgCmc/S0ajX3EAAAsCTn2/58tV/19nH/by4A/O82u6rTm6rvd1Vn26pHcw8EAABLcnXfn2ISAEtyuNffbVVV1ztBCQAARrX7c4pJACzNw93... | 0 |
math | kindergarten | rectangles | true | false | Which shape is a rectangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAGyElEQVR4nO2dTU8bSRCG3/FgK2YZIFjalU8gRbs+cQAUWwIJkPK78wdyyzGbvS97yUohQcoHmhxMJBbB2j3dU11V/T63CNkM9hO7p/qtrqpt2/bqK/DXDXB9C3xvQUg0GxXQ1MDvm8BvI6C6+tK2bz7mvizimcU2sPH+ZvmP6QiY/bK0kJBYrm+Bd5+Bv78Cf94Ag4/flz+gZCQlTb10CgA+3QKD23s/ICQlP5361gKDvJdCSoGiEREoGhGBohERKBoRgaIRESg... | 1 |
math | grade-5 | range-find-the-missing-number | false | true | Estelle has the following data: If the range is 14, which number could t be? | "iVBORw0KGgoAAAANSUhEUgAAAZ4AAAAkCAYAAAC5WlyoAAAKTklEQVR4nO3deXCU9R3H8fc+u0nIBTkJkBASSEISbkiQEMKhHFoKWpFSbJ1a0DoqjMVRWsex03rNOO1oCx0db20VFBWDUNTAgCBHOMIRIATCESAcCTGQe5M9nv4RssNyNBv4PbuLfl9/ZZ797bOf33d/v+e3+zy7G5Ou6zqAzemk0e7AqevoCCGEEDfPBGgmE6EWMwGa1rZN13W9ye6g2eHwbTohhBA/asFmMyEWM5rNqcuiI4QQwnDNDgc2p47W7LD7OosQQoifiGa... | [
"588",
"427"
] | null | 0 |
math | grade-6 | model-and-solve-equations-using-algebra-tiles | true | false | Which equation does this set of algebra tiles represent? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAAA2CAYAAAAlHWAMAAAEjElEQVR4nO3dXSjzbRwH8O9/L9Ke+ya1CDlAz+MAEeFk5MxLXlLzUuKE5GQ5k1OlHFCUEg5IiQPvngOKIg4sceCEuBUH2J6wbLZ5m/2eg91zP3pmbuzamn6f+rft+v+vrt/qu2tXa/8uiYjI+AAc2YGbJ8BBYOzdFBLwXQ78qQKiQgDJeE+0ZQl0WewryQkDFD/srhfRIUDSH67UMfZeN0/AgQ0wPACHdkBmcbhOcKjYZ3yXuzIEANYnQPb0nxOMfYY7Q48EyAJ... | 3 |
math | grade-1 | find-the-next-shape-in-a-growing-pattern | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADhCAYAAAC9ZMGZAAAY2UlEQVR4nO3dbWwl1X3H8d/MffC119jbDdkFFrpRKQoKFF4kLZWyKG+aShXNmygvouRN1DeBplIVNZFAgRACYktaGiVSeXgTiSi7SRRoogoISREKCmkSFRKFLbCCwuJd26zt3bv22l773nk4fXH37qN9fR/m4cy534+0Erv2nTn/c2aGn4/PzHjGGCMAAAAATvDzbgAAAACA5BDwAQAAAIcQ8AEAAACHEPABAAAAhxDwAQAAAIcQ8AEAAACHEPABAAAAhxDwAQAAAIc... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAADhCAYAAAAJS2C/AAAd/klEQVR4nO3db2wc933n8c/M/uGSokieYku2ZUfBuYaN2rUfOHc+wDL65HrAwc2ToA+C+EnRJ7GSAw7FJYCNxHESG1HdO1+RAPWfJwFSVGqK2tfgELlJahgx7NRJz6ovYm0T8dkSZZIWSWlFikuRuzszv3uwWv0jueTuzp/f/Pb9AgRI4u7M7/ubGc5+dn7zG88YYwQAAADACZ7nZd0EK/lZNwAAAAAAkkbwAQAAAOA8gg8AAAAA5xF8AAAAADiP4AMAAADAeQQ... | 1 |
science | grade-5 | use-scientific-names-to-classify-organisms | true | true | This organism is a comet moth. Its scientific name is Argema mittrei. Select the organism in the same genus as the comet moth. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOzdeZxfVX34/9c5566fffbMZF9IWAIBBBUEFBEXpKgVq4CK0FoFrVbbqq2trVXRSqtt3VvFpaIoKipaN0QFEQiGJQkkhOzJJLPPfNa7n/P7Y8j8EnYltf3ifT4en8dj5rPcc5dzP5/3Pfd9zhHGGJOmKVprcrlcLpfL5XK53wdSSizL+t9ejf8RMg/uc7lcLpfL5XK/b7TWpGn6v70a/yNkHtzncrlcLpfL5X4fPVXjYPm/vQK5XC6Xy+VyuVzu8MkD/Fw... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADMCAYAAABp7h4wAAEAAElEQVR4nOy9d7RlR3Wg/1U46eaX+3VWR3WrlXNEQiCSLILBgAQIaYzHgGzMjG08wxgbg4EBD9gm/TBYgG1hcjYmiKCMWrlb6pzTe/3yu/Gkqvr9caUeCQkkjBxGvt9ad613zz2nqk7VrvNqn71rb+Gcc3meY62lR48ePXr06NGjR4//DEgp0Vr/ezfjXwUhxL93E3r0eFJkTwnt0aNHjx49evTo8Z8Nay15nv97N6NHj/+06J4S2qNHjx49evTo0eM/I8/UdfB... | 0 |
math | grade-4 | compare-decimals-using-models | false | true | Compare 0.2 and 0.1. Use the models to help. 0.2 ?0.1 | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC0CAYAAACuelsNAAAHQElEQVR4nO3dzYsO/B7H8e/cWJDJw8KKBZFMTu6FsqQkD7MxyZBGxh8wdrY0ZacoiiJPNYt7pRRqFhakNCkpStRYKBELM3nKwzRnITrjGM6Mj2uc8Xrtrqvrd82XvvLuN9c0TcPDw8MFAABE/DXRAwAAwGQisAEAIEhgAwBAkMAGAIAggQ0AAEECGwAAggQ2AAAECWwAAAgS2AAAEDT1Zw53dNwOjcFk0dPz94R8XbvI1yZqFwHADTYAAAT91A32Z9u3/2tMr//nnzv... | [
">",
"<",
"="
] | null | 0 |
math | algebra-1 | write-compound-inequalities-from-graphs | false | true | What compound inequality describes this graph? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAANQ0lEQVR4nO3dfVBU5QIG8Gf5WBBQFgIlRCDHREk0EfmIj6s1FoWMAlkwNca1IcvSamqGpmm6ZuqMt6Iu1owxitQ0jgMDeC0gY7ZYkIYFBRFSiD5QqJFAQFpw97Cy9w9iRy5yZT/k7Nn7/P5R3l1mnhfOwsM573lXZjAYDLAjx44dg0wmQ0ZGhthRLMJ52BbOw7ZwHrbFXuZBRGQtTmIHsLauri6xI1gF52FbOA/bwnnYFnuZBxGRtcy4YI+OjuLs2bNQq9WYP38+z1T... | [
"$5<x<8$",
"$5<x \\leq 8$",
"$5 \\leq x<8$",
"$5 \\leq x \\leq 8$"
] | null | 0 |
math | grade-2 | which-table-is-correct | true | true | Nick went to a garage sale and saw the following items for sale:He decided to how many of each there were, so he made a table of the items he saw. Which is his table? | "iVBORw0KGgoAAAANSUhEUgAAAUwAAADeCAYAAABWtzmjAABXrklEQVR4nO29eZRdV3Xn/znDvW+oQUNptkbbkiXZZjABD0AMDQ4Ko00C2GHq4NWBNJg0pvNLgLXahtW96E7TCYQGY0KHmICZHMAEDDYG29hgPM+SLQ+yrVmlmuu9d6dzzu+Pc9+rkifKIKlKpfNZq1S13njvVdX37bP3Pt8tLr74YkcgEAgEfisa4KKLLpru4wgEAoEZj5zuAwgEAoEjhSCYgUAgMEWCYAYCgcAUCYIZCAQCUyQIZiAQCEyRIJiBQCAwRYJgBgKBwBQ... | null | [
"iVBORw0KGgoAAAANSUhEUgAAArYAAADeCAYAAADIO0PyAAB9XElEQVR4nOzdd7xdVZn4/89aa+99yq3JTXLTe0ISOipdUSEaQSlWGBFHGSuiI/wYFf0K+B3HGduIjaLfUSyAiAMooCAQkF5CJxVIID03N7eessta6/fH3ufcG2qAJPcmWe/XKyScss8+OzfnPPvZz3oecf7551scx3GcV3X++ecP9S44juM4r8ADOO+884Z6PxzHcYY9F9g6juMMb3Kod8BxHMdxHMdxtgcX2DqO4ziO4zi7BRfYOo7jOI7jOLsFF9g6juM4juM... | 0 |
math | grade-6 | reflection-rotation-and-translation | false | true | How has this figure been transformed? It has been... | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAE0ElEQVR4nO3cMWwbZRjG8ScoiWnVUNMUNSmoToQIYSGoqEsR+MLABEsnFAnJZq1grBgvG4wMrNhbmKKgIiSWhAQGpAphhERbAYMlaBuRUpeWNK6HjyG0KbIdO+dL/N29/58UWfKdn7uc70mu9eUdyOfzLggCxWF1dVXOOZEXPW9lZSWWrH4LgsDr42wtbzAIAoVhGEvg/Py8nHPk9ZCXFpxXfuU9FksSAK9RdMAAig4YQNEBAyg6YABFBwyg6IABFB0wgKIDBlB0wAC... | [
"translated",
"reflected",
"rotated"
] | null | 2 |
math | grade-2 | read-a-thermometer | false | true | What is the temperature? | "iVBORw0KGgoAAAANSUhEUgAAALkAAAEOCAYAAADVFbYlAAAWxElEQVR4nO3de5QjVZ0H8G+aAQWZ7hr0LDqvrlZEmUenwhGWYRxSPYoIqKmgCyiPJJ511xd0AkfBhTUJB5ZlEZOowKpHuwLqrMjSCeewDKikAsjo4u7cpmd4iGNXzwyeVVymenB1dx6p/SNTNd0z6Z50Unn0vb/POX26O52p3Onzze1bt+6vrs+2bRuEcGxRO1+sUCigXC6DMQbDMI76uSRJUBQFwWAQmqZBUZR2No9wytfqntw0TaTTaRQKBViWBQBYf14QqwcH8ab... | [
"20°F",
"25°F",
"0°F",
"10°F"
] | null | 0 |
math | grade-8 | identify-congruent-figures | false | true | Are these shapes congruent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEbCAYAAADgR/OCAAA5q0lEQVR4nO3deVjVdf7+8RsPqKCJppg2v0wCd8WtcUq/uRRailrijisuWWqW5YyKW+5JueVaLrhWbmlqouU2mllqOUGipoY1TrgLCorI8vuDOLJpLAc+Z3k+rssrOXw4vhiPzd3xfn3eTikpKSkCAAAAYBFFjB4AAAAAsCcEbAAAAMCCCNgAAACABRGwAQAO5dKlSwoMDNQTTzwhDw8P1axZUytWrDB6LAB2xNnoAQAAKEwBAQF6+umndebMGRUvXlw//vijWrZsqfr... | [
"yes",
"no"
] | null | 0 |
math | pre-k | select-solid-shapes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAZK0lEQVR4nO2dW3Cb5ZmAH1tnS7EkO5FE7Nhu0ljsbLDbTTYxFyEc2nQGSHYvyF4USq843HRnYMrdTpl2etdO6SUUbraBXizcrFNgOJMws3FSA5WTnUV2k1qOCJISWZJlnSV7L379P5KtJDofv2eGMTr+X6zHr97v/U59m5ubm740/C0O0RxkNxEI2g51H+xQwf4BsGuhz5fa3Ly41upmCQTlc2QQ1Etx6cZdWnAaJasFgnYjmgN3DL5Jw2Ic+tey0gNCWkE7s0M... | 1 |
math | grade-2 | which-picture-shows-more-up-to-5-dollars | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlYAAAEvCAYAAACHYI+LAAEAAElEQVR4nOz9PWwky7bvif3ezMMgUsIIEcAAyvQ6DEFIelkyBNazuo5XB+OQzyKPtet4bK/pNY912ZZIb9M73NYhrSGNGezybrU1VYAAVXqd0AcU21ImMANEYEaaDI3m4cpYkVlF7u599nl333ffbdQCuiuZGRkRGZ8r1vqvtf7VP/zDP/xD9z/D/+N/gv/x38H/8g8c6EAHOtCBDnSgAx3oV9C//lfwn/+n8L/7X8H/9j+Df9X9f//hH/7P/8M/d7UOdKADHeh... | 1 |
math | precalculus | identify-graphs-of-continuous-functions | false | true | Is the function f(x) continuous? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AABxBUlEQVR4nO3de3xU9YE3/s/cZ5LJ/U4gAUSQIKAgKAiChSor1S24Ptpua93d7rPbrb09dZ92e7G/bantbmu73bVd211X7dqnrq63FQyKBQGD3CIEEkAhQi6EXCaZ++Xcf3/ERCIgE/h+MxP4vF8vXzqTM598ncyc+Zwz33OOzbIsC0REREREJIQ90wMgIiIiIrqUsGATEREREQnEgk1EREREJBALNtFlZPPmzZg8eTJWr16d6aEQERFdsmw8yJHo8rFy5Up89rOfxec... | [
"yes",
"no"
] | null | 1 |
math | kindergarten | represent-numbers-up-to-10 | true | false | Which group has 7 hearts? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAANvUlEQVR4nO3dP0ybdx7H8a/tAIY4kYfTnb11gBwjd0tZqDxSpJMykYwIlk5pxpPSsUgdW1RGqo5HpEroTkIeEVlQFxjp0YENn+6GqKH+7/gGx6EOoTXu48/zs7/v19KS1D//PuZ5Ps/Tx4/9S7Tb7XapbvZj2exVy6zZNgCIxJ2E2b2U2dyM2Z8mzRKlWrv9/U9xTwvAuPvwvtmds3Lnh/yk2Z/vdtoIAKLwqmX2w89mF3Wzf5fNkj81O39B2QCI2r1Up1vMzC5... | 0 |
math | kindergarten | represent-numbers-with-shapes-up-to-3 | true | false | Which group has 3 rectangles? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAADCklEQVR4nO3dT4ocdRiA4a97ZpohJroRxQOoRwiB4A28S46SlQfRKwQC2biOce+IrmaSIRmnUy6agOAi/mnteYfn2XQVBT++gpdv1VCrZVmWs6uZHy9nLrYz18vAjXO8mrl3NPP5nZlPNzOrszfL8uz80GPBX3f/w5njF5e7m882M19+sKsabpqL7czzVzM/Xc38cDmzPr/ePRAtN9m9o12jMzMvtzPr7R8ewE32rtHflpn1YUeBf0a4JAmXJOGSJFyShEuScEk... | 0 |
math | grade-4 | compare-fractions-with-like-numerators-or-denominators-using-models | false | true | Which fraction is greater? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC5CAYAAAAS5EjTAAAmH0lEQVR4nO3df3TU9Z3v8VeoeIn8mMTu0hJ/5EdrQYXOFKF4CpiJ2HOsJSTaltZVNhNXFG+9S9I9inZvzUS7vSq9m2Hvbos9eBK2uF2xrQPh4vZUYdRo/QF0UsBCXchECVRszZdfGwr25v4xfMdJDJJJvvP9MfN8nMMRSMj3E77vc3j5/r6/n09Bf39/vwAAAABYYozTCwAAAAByCQEbAAAAsBABGwAAALAQARsAAACwEAH7jD/96U+677775Pf7NWnSJF1zzTV6+eW... | [
"2/8",
"2/3"
] | null | 1 |
math | grade-6 | rational-numbers-find-the-sign | false | true | The number line shows an unknown number, z. Is z positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAlwAAAApCAYAAADgbPfrAAAGNklEQVR4nO3dT2yT9wHG8ed1ajs4oSkEp0tpElQ4rBESYgSTUDRxqdoq4mAKB6QKITEhQBy2w8S0qTfExGGaKkGVSOxCSwSHGWlInHoxXGKHgNK6BMYKSVBLiYk6Nv+NE787hLiYkNpeef36Tb6fS/x79cZ6oleRnvf3/t73NUzTNAUADjIwMCDDMLRv3z67o6BKOOZwulfsDgAAlXrw4IHdEVBlHHM4XdmFK5fLaXh4WJFIRC0tLZxlAIAD5ZOmJj//Qbn4jFKjWXk... | [
"negative",
"positive"
] | null | 0 |
math | grade-3 | am-or-pm | false | true | Gabby is eating pizza for dinner. The clock on the wall shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABb7klEQVR4nO3de1iU95k//vdwmAGcEZgBYUaUwQNEhUBCmgaTLqitJq1GjDZtTLpi02Y37dUGt/0m23b3J7bbbvrd7VdMT5um2ZC0selGKwabVJvEodlKm0iE4GkwyuBhEGVwYEYOA8P8/iAz5TCHz5w5vF/X5RWc536e504yXNx85n7uj8ThcDhAREREREQhERPtBIiIiIiIZhIW2EREREREIcQCm4iIiIgohFhgExERERGFEAtsIiIiIqIQiot2AhR99pFBDI8MjPn... | [
"5:10 P.M.",
"5:10 A.M."
] | null | 0 |
math | kindergarten | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 7 − 5 = 2? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAagAAABKCAYAAADuScD9AAAVrUlEQVR4nO2da4xc1X3Af+feO4+d3Z3dtfFrsY0BP3kFO8QPQiiEYGMSGgghqqCUJZFaReqHqumHgFpFidRUSdp+SBopUlG6gaAmKQkVqZJgQkpI6NoG1jZgjLFZG3uNH+t9z87z3nv64cz7sZ61x/Yy/v+k1c7cuY/zW/99/vc87hmltdYn0nAwDpMeuBpBEARBuOA4CtptWBGBBUFQJ1Ja75y42MUSBEEQhAIbouAciJs3i4KwqtVkL0EQBEG40Ex6sH8Kjqf... | 2 |
math | algebra-2 | domain-and-range-of-absolute-value-functions-graphs | false | true | What are the domain and range of this function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABe8UlEQVR4nO39fWCU9Z3v/78mM7lPICGBBIIJIoqCCYiCBUGxWLXa2kK3i+32Rtfdrj212p7ft3v629N2b37W07O77W49ttv1bE+1Pf392rpVu4KRoqDQUEEiBBMQMWAgQG4mN5O5v2bmun5/0GSJ3GXg+jAZ8nz8ozPM9co712fmmve858qMx3EcRwAAAABckZPpAgAAAIBLCQ02AAAA4CIabAAAAMBFNNgARqmpqdG2bdtGLh86dEhTp05VR0dHBqsCACB70GADGKW... | [
"domain: $\\{x \\mid x>2\\}$, range: $\\{y \\mid y<5\\}$",
"domain: all real numbers, range: $\\{y \\mid y \\geq 5\\}$",
"domain: $\\{x \\mid x>2\\}$, range: $\\{y \\mid y \\geq 5\\}$",
"domain: all real numbers, range: $\\{y \\mid y<5\\}$"
] | null | 1 |
math | grade-5 | scalene-isosceles-and-equilateral-triangles | false | true | Is this triangle equilateral? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADOCAYAAAAEw3WqAAAlLUlEQVR4nO3de1jUZf7/8dcMMIgkooCmi3lARaPSJFezqO+yqZBoYa2YiG5rJ7PatM3aTtppV8s0rezctxQLLdxNSNcsrPjlIRYEFQ2VksJYJQLJcWSAme8fLf7WTY3DzHwGeD6uqz+aZj736+qvF/f1vj+3yel0OgUAAADAJcxGBwAAAADaEgp2K7Jlyxb17NlTf/rTn4yOAgAAgDMwMSLSOixfvlyzZs2SJJ177rkqKyszOBEAAABOh4LdCtx22216+eWXT/msoqJ... | [
"no",
"yes"
] | null | 0 |
math | grade-7 | similar-and-congruent-figures | false | true | Are these shapes congruent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEaCAYAAAArGyAnAABWEUlEQVR4nO3dd0CV9eLH8fcBDoKCgAgi7hHkrm6pDQdlVoqpOUJcWaagOXPnLMWVqRmOzL0HZomaabnyZ1rmJicpmRoogogi6/z+oLh5cws8B/i8/rkceM73+Tz3cvHDw/f5fk0Wi8WCiIiIiIhkCRujA4iIiIiI5CUq2CIiIiIiWUgFW0REREQkC6lgi4jIfQkICGDkyJGZr9PS0njppZcYP368caFERKyQSQ85iojI/Th48CAvv/wyUVFRODg40K9fP86fP8/SpUu... | [
"no",
"yes"
] | null | 1 |
math | grade-1 | find-the-next-shape-in-a-pattern | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADhCAYAAAC9ZMGZAAAYaUlEQVR4nO3dbYxcV33H8d+9d2Z2vF57jVGcOEElwooItAXRYqFKtKgSoqqUqq8qJIjUF5VKWgmpEso7EEnJq4IqVaCqedk3tMJQIgjEBitNgpuAHBMSZIfYcRKBvWvvep88Ozs7M/ehLybXHtv7MA937j33nO9H4g3Ovff8zzk++9vjO2e8JEkSAQAAALCCX3QDAAAAAGSHgA8AAABYhIAPAAAAWISADwAAAFiEgA8AAABYhIAPAAAAWISADwAAAFiEgA8AAABYhIA... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAADhCAYAAAAJS2C/AAAdEUlEQVR4nO3dW4wc133n8V9V34bN4cyEjiiNaMRKBCVSLjK0a8II4N3Ai8BJAAZ5WhiQBeyDAUsJYiBAoDcbktZ+so0FFjIW1uO+eBeRszYsJRJjQbEcxopCMbRskLJI0RIczoUz5Fw409PT3XXZh1aJzZmenr7U5dSp7wfwQ8z0qfqfczynfl3Vp5wwDEMBAAAAsILjOFmfgpHcrE8AAAAAAJJG8AEAAABgPYIPAAAAAOsRfAAAAABYj+ADAAAAwHoEHwAAAAD... | 0 |
math | kindergarten | flat-and-solid-shapes | true | false | Which shape is solid? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAIRElEQVR4nO3dTWiUdwLH8d8zkxc0rUEMq6slVsn6gim+1fYQoRct9WBZW4oX21IxYuvBVkp6bHudFmkOhRKXHurJS112DwviMXuorxVErUp9QbtZNhIcmwmTZPLsYfJQCRqTmMlv5vl/P5eZh7n8BubLDMOfmSiO47hvWLpRkB6WpNFYACqkLpKez0p/mS8tbpCivmIcn867ZwHheXWBVHe9UL74c4O0uqlcJ4DKeFiSfhmU/jMsXStImfxo+QHiAyrv+Wy5NUn... | 1 |
math | grade-5 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines perpendicular? | "iVBORw0KGgoAAAANSUhEUgAAAJkAAABwCAYAAAANF9LwAAAKVklEQVR4nO2de1BU5xnGn4MguissHWBnKrKNWmTDLRUzeFmCN0RHpdlaLeCIijRI66VWa63TYFXqJGC9NGbibWxGzYwwWotDta3JGCdm2+ok2haMmOpg2JhOWXYMCLvc3O0f20OOLkT3cs73fWe/3187MAfeGX6zuzzP2e8V3G63GxyOjISRHoCjfrhkHNnhkgXA9QtXcW53LRztXaRHoRqBvyfzH0d7F9Z+uxjR+hgs3VWKLLOJ9EhUwiULkE0Zr+DBf+wAgGRTKkr... | [
"yes",
"no"
] | null | 1 |
science | grade-8 | use-punnett-squares-to-calculate-probabilities-of-offspring-types | false | true | In a group of horses, some individuals have a black coat and others have a reddish-brown coat. In this group, the gene for the coat color trait has two alleles. The allele for a black coat (L) is dominant over the allele for a reddish-brown coat (l). This Punnett square shows a cross between two horses. What is the pro... | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD6CAYAAADUdTPBAAAG9klEQVR4nO3asYpcZRiA4X9lXANhjdqKsiFhE8RCcK8hWFgI2oR0hnRegZAmSZdbiLXFNiLWFpY6VQKSQklwQQikCyawRMYqMY2wMbMzs+88TzfM4ZwP/ublO2djNpvNBgAAkPDasgcAAADmR+ADAECIwAcAgBCBDwAAIQIfAABCBD4AAIQIfAAACBH4AAAQMln2ABzetWvXxp07d8apU6fGrVu3lj3O2nMeAMAqssEHAIAQgQ8AACECHwAAQgQ+AACECHwAAAgR+AA... | [
"0/4",
"4/4",
"1/4",
"2/4"
] | null | 3 |
math | grade-1 | compare-vertices-edges-and-faces | true | false |
Which figure has fewer faces? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIAAAACACAYAAADDPmHLAAAS5UlEQVR4nO2de1jUdb7HXzMDjIKMgIAOBCKBqamp4SU22jzblg+u1hq2rkgWx8qVNm3RVdm8JKIeoA5ptlZW6nrOZlbPyaKz6pLrCbrgjcxGEwJGQgiT23BxYIY5fwwzzygDzMDc4Dev5+GZZ+b3vXx4fu/5/m6f92dEOp1OV90GJS2g0oJGh5tBjIcIfCUQ7Q0jvUBUrdbpChudHZYbZzBTBh7FLfo3ci+4w0evDjeDF5UWvm+Gqja43ALiRo1+g3vnCwNfiX5... | 0 |
math | grade-2 | select-three-dimensional-shapes | true | false | Which shape is a cone? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAPB0lEQVR4nO2dS4wcx3mAv+qex87sLFd8LSmTIkVRjzC0xDiB4QgIfCByCGIkOeR1yDEXBQmCwJAvMmL4ouQQODJyin1IAAMJghxycCLHji0mlh+yZMuWGMd8y+FqZZHUvh+zs7vTXT50V/fOY3d7Znqmp7v/78LdmdneX9DHYtVf9f+ltNb63jbcrsOaA02NIIwdBQVTNjxRhRMlUPe2tH5jNemwBCE6HzsEhVt175uHS/DUpGe1IIwbaw7c2ID3t+FmHazVpve... | 0 |
math | grade-3 | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABeUklEQVR4nO3de1yUZfo/8A+KAwLjgeEgVDqggiZTGRbgEaG0LUFLK6XvHr6rttXuJu122GB323ZXO+4u1K/dSttt97uBbVoCWmmioIZYUtbgAbRhtBoYZDwNgzKg/P5gZ2JgDvecmAE+79fLV8w89/M8dzrz4nru53quK6Crq6sLRERERETkEcN8PQEiIiIiosGEATYRERERkQcxwCYiIiIi8iAG2EREREREHsQAm4iIiIjIgwJ9PQHyvYvGy2hr74ThUmf3f9u7/xs... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABujElEQVR4nO3de1yUZfo/8A+IA8KMKcO50gERNJnUsASPKKVtiVrapvTt8F21LdtN2t1sw622Wi3d3YL2V1tpu7XfDa20FLSURMEjlpQ2eAAVRitgkPE0MwgDwu8PmomBOTxzHuDzfr18OYf7eZ4LnKm55rrv6/Zrb29vBxERERERuYSfn5+3QyDyOn9vB0BERERERES9CxNNIiIiIiIicikmmkRERERERORSTDSJiIiIiIjIpZhoEhERERERkUsFeDsA8r6r+mt... | 1 |
math | algebra-1 | special-right-triangles | false | true | Find k. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACfCAYAAADDEa74AAAjmElEQVR4nO3de2xU95338ffc7fFtxjM2tiEhEAqENiSkbnED+4SGboE2JFxNAJPQhn2qRNtVNqpW6eqRdqPNrlZbadvVrqptGhISLinmmsAmQVsSkEibtrAQkrBc3VCCrzP22IPHzPU8fwy+DCHBNmOPx/68JDRgn5nzO8aWPv7N93y/JsMwDEREREREJC3MmV6AiIiIiMhoooAtIiIiIpJGCtgiIiIiImmkgC0iIiIikkYK2CIiIiIiaaSALSIiIiKSRgrYIiIiIiJ... | [
"$4 \\sqrt{3}$",
"$4 \\sqrt{6}$",
"8",
"16"
] | null | 2 |
math | kindergarten | count-money-pennies-through-dimes | false | true | How much money is there? | "iVBORw0KGgoAAAANSUhEUgAAAMIAAACDCAYAAADf5cT4AABzsUlEQVR4nOy9d5Rk51nn/7mxbuXQ1Tnn7unJOStawVZwEMEEexdsDCx4wXjBrNkfLOlwgGWNFzDBBmNjy1GyLUuysjQzmpxjT+qcQ+V08++P6i5LIMkzsiRkS99z+sxMq9V13/uE98mP4Lquy9t4G29xiP/ZD/A23sabAW8Lwtt4G7wtCG/jbQBvC8LbeBsAyG/kh5mlIvl8Hl0vUcznsQydQmIWw3aRZRlPKIrP5ycQDKFqXvzBAIIgIgjCG/mYrzlcx6ZYKJDPZsh... | [
"11¢",
"10¢",
"14¢"
] | null | 1 |
math | pre-k | select-solid-shapes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAPLklEQVR4nO2dy29c1R3Hv+c+PX7FsRM/IahIEIpQhVokxAK6aLugD6ldVZXYVe0f0H23XbLrCrFmWaktsGlVqSxaUkRI4iTgACEEHDvEcbDn3pk793G6OPfceXtedzxzz/l9pCjO2FaOPZ85c87v/H6/wzjnfK8GfOoDxzEQcRDE1GExYMEEnpoF1hyA7QWcXzqa9LAIon9eXASsW774x4YDXJwTVhPEtHEcA594wL0asOMDxlEkPkHSEtPMgikcBYByDBhxwyc... | 1 |
math | kindergarten | count-to-fill-a-ten-frame | false | true | There are 6 shapes on the frame. A full frame has 10 shapes. How many more shapes do you need to make 10? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACQCAYAAAAyRxwtAAAMQklEQVR4nO3dT2xU170H8N8YWyjEtUSA+C3bBmVTdUOyRAJUVwKaJmXDkq5TvWXo8pF1sw7dJsundF12gU2kBkz5VxFIkYLEwyKAwAic2nNn5r6FY5WQGpjxmblnfD6fHQoZn2/O4n5zzs9zW5/fqeoAIA7MTja9BAA2gYmmFwAAAJuJgg0AAAkp2AAAkNCPBg7fem1LE+tozPkH3R/8WX75SyJ/98V/CQD65AQbAAASUrABACAhBRsAABJSsAEAICEFGwAAElKwAQA... | [
"4",
"9",
"1",
"2"
] | null | 0 |
math | grade-2 | interpret-tally-charts | false | true | Leah sold cookies at a bake sale. This tally chart shows how many of each type of cookie she sold. Did Leah sell fewer heart cookies or snowman cookies? | "iVBORw0KGgoAAAANSUhEUgAAAYwAAADWCAYAAADCW7VvAABdvUlEQVR4nO2deXxU1fn/3/fOPtl3SAhJ2Pd9U0TADRUqiopbVVz61dal2lZr69cF+6tWatuvXcTaqlTrbqsoYsWKgAICsknYCSQEsm+TzD5z7/39cZNJhmyTBUjgvF+vvDJz7znnnjuTnM89z3Oe50jaSykaAoFAIBC0g3y6OyAQCASC3oEQDIFAIBBEhBAMgUAgEESEEAyBQCAQRIQQDIFAIBBEhBAMgUAgEESEEAyBQCAQRIQQDEGvwGFJ59hNx9l/7REclvTT3R2... | [
"snowman ",
"heart "
] | null | 1 |
math | grade-7 | identify-trends-with-scatter-plots | false | true | Does this scatter plot show a positive trend, a negative trend, or no trend? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAoNklEQVR4nO3df3SU5Z338U8CkpAEMhUJmURkQkB+hcOEpG2A85BJ3SNQiRvd0xXrHhcUNPasSrpnW2y7mq3Yk+3RkvoDg1ZAi5U9myouHMHHKgPKQ3AZGA5RYEuZQQUmQetAfjBAyDx/cJg1hAQCV+aeTN6vv5z7GvP93PpHPtxcc01COBwOCwAAAIARiVYHAAAAAOIJBRsAAAAwiIINAAAAGETBBgAAAAyiYAMAAAAGUbABAAAAgyjYAAAAgEExVbBDoZBCoZDVMQA... | [
"positive trend",
"negative trend",
"no trend"
] | null | 2 |
math | kindergarten | select-three-dimensional-shapes | true | false | Which shape is a cone? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAATAElEQVR4nO2dWYwcx3nH/9VzH3twLy4v0ZYtSrAUKraD0DJj5cVxIDiGnTzYCIzkLYaAJIBg2JAhIA95SCQlQODAMBIg0FMeciAHEkcEAjh6sC1DtGxKoiXKIiWK9FLcJffkztU9fVQe+pienZnd6Zqenqre7wdIM+yp6a7u+W/199X31deMc87X2sC7TaBmAxYHQUhHlgFTGeCBMnA0D7A1g/Of7E66WwQxPOemgey1pvuPY3ngwYqraoKQjZoNvNMAVtvA1Sa... | 1 |
science | grade-6 | compare-thermal-energy-transfers | false | true | The table shows the same data about how the temperature of each vial of insulin changed over 15minutes. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAABfCAYAAACdpLOcAAAh6ElEQVR4nO3deVgUV7438G83vdAiKrZAVFxaFEEEREeUGVcgvl5CYmyHxO3mjY6RGFRMosYJ6otiRI0m8RrHPDEmLjFKvEbm6jBqokZx55Uoo1EUbCNK4sgmyNbr/YOAQjfQDd0CzffzPP5hddWpX52qU/z61KnTAsmRMgOIqIZbox3R72R5c4dB1KqxHRGZp2KcY3OHQHZG2NwBEBERERGR9TDBJyIiIiKyI0zwiYiIiIjsCBN8IiIiIiI7wgSfiIiIiMiOMMEnIiI... | [
"Thermal energy was transferred more slowly into the vial in the refrigerator.",
"Thermal energy was transferred into both vials at the same rate.",
"Thermal energy was transferred more slowly into the vial on the counter."
] | null | 0 |
science | grade-4 | identify-rocks-using-properties | true | false | Select the one substance that is not a rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEYCAYAAADPtGNgAAC8DUlEQVR4nOz915dl+XXfCX6Ot9fb8BHpqrKqAMKSIEFKFCVKLWk4rW6x5039qGf9QzPzPmuWXno4M6JEidLQwaNQqKzKysjM8HHjene8m4ffiVtZRYAEKVQhAcVeK1eYjLgRce/ZZ//23l8jfWdRFG84UFG4i7u4i79HrDJ46sF1DA0VfrsuPi/fJdZd3MV/X1QUeMMR76+zjz8v3yXWXdzFf3/c5lFSfPw5+Rfzq9zFXfzqx11y3cVdfEZxl1x3cRefUdwl113... | 1 |
math | grade-8 | identify-functions-graphs | false | true | Look at this graph: Is this relation a function? | "iVBORw0KGgoAAAANSUhEUgAAAQ4AAAETCAYAAADH+ejgAAAWeElEQVR4nO3dbUxb970H8K95sI0dHpoKh7u0F1y1wRccQdTEgHZVxXlVFmiVSo2nTbsSaJGSNbxqtfYVfaCt2qqrJo1s3YsL2rQXM5qqTBClUqU42iaBaaK4Cs6cTHd2NrUjdpcYkmNsnnxfuD72AZfw58HHPv5+pAhsDif/gPP1+T+c/0+XTCaTICISUKZ2A4io+DA4iEgYg4OIhDE4iEgYg4NyisfjiMfjajeDChSDg3Ly+Xzw+XxqN4MKFIODcpqcnMTU1NS3fn1... | [
"yes",
"no"
] | null | 1 |
science | grade-3 | identify-vertebrates-and-invertebrates | true | false | Select the vertebrate. Hint: Mammals, birds, fish, reptiles, and amphibians are vertebrates. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAADpOElEQVR4nOz9d7Sl2VXeC//mSu+7w4mVq9RV1VXdLXVLLaklWhICIQQy2QSTMb42YDLYgEk22NfX9r0WwR9B2GBsg43B1wSTcxICIYFybKlbnauqK1eduMP7rvD9MdfeJXuI+wnqn/uNwRmjRlefOnXq7HfPNdecz3yeZ8pbtkt59ghWLH/98dcf/6/82E3w8D5c7GDDwceu6+fNXwfuX3/8v/1jxcKzR/r7vXTr8+avA/evP/7/4WMRp3259Tn34b7w/pe8gph... | 1 |
math | grade-1 | rhombuses | true | false | Which shape is a rhombus? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAHI0lEQVR4nO3dz48TZRzH8c/zTLtLt7ttF1hc5MIFjSFRNCgQIiGgCwuacPDChUQT48nEq3+BN2MwhsSo0QMHLhxQXEQwREMUTFBJDMH1sBeksMD2x7alu53n8TBlO42w0u30O+3087rApmz7hLzTb2c6P5S11mYXgL/LQNEFahZEbYspYMQBNg0BTwwAKlu19nIh7GVRlG1LAbHpsvfD+gHg6aRXIVG7ii5wvQTcXAD+KgO6UPMeYGQUpBHHawoA5l1Au74HiIL... | 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? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAACJtklEQVR4nO3deVxU9f4/8NfMsAzDDCCrbO4yprkkuKUlanYrwbp1rcDWXyWtt1Lqtovfuq2M9b2tYN8yM2ixWwltLola4jIouA/ugoMLyDKswwyf3x84xznMAAPMxpn385HBnPnMOZ8zMG/e57MdEWOMwYNVVVXi5MlTaGlphkgkcnV1CAEAeHt7Izw8AoMGDXJ1VYiAUfwj7ojin3Verq6AK7W1taGiogKMtcHHx8fV1SGEp6qqEpGRkfD29nZ1VYgAUfwj7ozinyW... | [
"sample B",
"neither; the samples have the same temperature",
"sample A"
] | null | 2 |
math | grade-3 | match-fractions-to-models-halves-thirds-and-fourths | true | false | Look at the colored part of each shape. Which shape shows one-half? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAACb0lEQVR4nO3Vv04UURxH8e/sLhQIroXRWBKjVhA7Kp6AaE/PO1hQk/AOPoA9hiego1QbxEQ7MdrIwiasO7kWExJLHP5Msud8mt3J7J35Zc/cTFVKKSeT5Ms4GdXJtEQzZFAlS/3k2ULyeD6pTi5KOTzteizdhbX7yeB43Bw8mU9e3GueBs2OUZ0cnSffJ8nncdI7nTYnjD2blvpN2yQ5q5Ne/c8JzabLtn9K0ut2FN01g8MYHMbgMAaHMTiMwWEMDjNos+jN2w/... | 3 |
science | grade-5 | identify-vertebrates-and-invertebrates | true | false | Select the vertebrate. Hint: Mammals, birds, fish, reptiles, and amphibians are vertebrates. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAADa5klEQVR4nOz9eZBlWX7fh33OOXd9e+5ZlbUvXdXVe3X39DqNng0zWGbAAQkIkEhAlGiH7CAthyU6wgoqHLZkWxEOhRUhh0lT4iIwCJBYCGAwAGYwS89Mz/T09FrV3bXvWZVZuefLt9/lnOM/7r3vvayuHjTU/EOO4InIqsz37nKW3/n9vr/1iDd3rD1Rhqri37V/1/4X2doaLnXhbgwTDrzYyD6X/45w/137X3qrKjhRzn7v6NHn8t8R7r9r///QCjpN7Ogz534... | 2 |
math | pre-k | represent-numbers-up-to-10 | true | false | Which group has 7 hearts? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAW30lEQVR4nO3dsW/b2JYG8C+jjAbkvjwY4EILGyJgYGYtIECgdA9Sq5YuI5dR7Za1W/8JU1ullW6lVi0NvEouH98UAmhoZr1LQBjl0Yg3hrcgqEliayzRFO+55PdrZpxE9IEu/en6krznxf39/f1vt8AvEbC4Az7fg4goEy9fAK8qwH+awH9UgRe/fbq///vvqssioqL721+Bl/+M4i92q0Dj3+I0IiLKwuIO+Me/gF9vAT8Cvvv9c/wXDBsiytqrSpwtAPDxDvj... | 1 |
math | grade-8 | apply-multiplication-and-division-rules | false | true | The number line shows an unknown number, t. Is – 3t positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGA0lEQVR4nO3dXWhTdxzG8SetOa2pNe26VOvW2rvNUlGxxlYLChvspciME4Y34hDcFGEXu5Bd7cYJXg50KHgzwc6LEVdk3d0gCluT2nbFYLfBMNT3+jId9iVJ2+xCE1rapoqn+Sen389Vz+m5eOAE8vT09/8fVyqVSgkACkh7e7tcLpf27NljOgpyhHsOoJAsMR0AAF7WjRs3TEdAjnHPARSSFy7YyWRSPT09CofDqq6u5ikCkAcGYwlF+0d0725SQ3eTql7p1oqVbm3... | [
"positive",
"negative"
] | null | 0 |
math | algebra-2 | identify-the-direction-a-parabola-opens | false | true | The graph shows a parabola. In which direction does it open? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAHyCAYAAADRDLnIAABskUlEQVR4nO3de1hU9702/HsYZjjDICAQFJR4xHAQo4mJeKi2MdomYmOS7rdNNOk+9GkSzdO3u23S3SZ9re31dKc1qe3O7t6J2J397FQbYxoVE40oBKIoCirRiCjIQQ4DA8wMM7PmsN4/7EzF46C/HzPA/bmuXlcZZm6+wZnFPWt+ay2NqqoqiIiIiIhIiJBAD0BERERENJKwYBMRERERCcSCTUREREQkEAs20Sgxf/587Nixw/f1X/7yF0yfPh0ejydwQxEREY1ALNh... | [
"down",
"up",
"right",
"left"
] | null | 2 |
science | grade-5 | use-scientific-names-to-classify-organisms | true | true | This organism is a dromedary camel. Its scientific name is Camelus dromedarius. Select the organism in the same species as the dromedary camel. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOydd5glVZn/PydU1b23c/d092QmD2EAJWdFJCPigkSRsMoCIihKUFcUcdEVFRXBCILCgoqgYiSoiySHOIk8M0ye6Znu6e7bN1Wd8Pujbl8ZGIIyP91l6/M8/czcuhVOnTrV/Z73vO/3Fd57b4zBOUdGRkZGRkZGRkZGxv9OpJRorRFJkvjMuM/IyMjIyMjIyMj434+UEpkZ9xkZGRkZGRkZGRlvDpxzyH92IzIyMjIyMjIyMjIythyZgZ+RkZGRkZGRkZH... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADMCAYAAABp7h4wAAEAAElEQVR4nOy9eZwcVb3+/z7nVHX37Fsyk31P2BLCvsgiiyAiIioKCCqg16uIiFxR1Kt+Ea+ieAFF3BfwwhVFRUBE2WQNIYRAyAZk35eZSTJLT3dXneX3x6nu6ckCQfOTe7318JpXZrq7tlNVTT3neT7PRzjnnNYaay0pUqRIkSJFihQpUqT43wkpJUEQIIR4o3clRYrXhExJaIoUKVKkSJEiRYoU//thrUVr/UbvRooUe4QgJaEpUqRIkSJFihQpUvxzwFrLsz2... | 1 |
math | pre-k | represent-numbers-with-shapes-up-to-3 | true | false | Which group has 1 star? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAFnUlEQVR4nO3csW8TZxzG8ccJGIkawmC1RR5KUWhhcrLAZBGpLESqiitRZQviDyCsLUPbiZGoyVzMWiGRtCodMQ0TC2ZKaRBJB0iqZkgdE8kp0XWwHJnEgdxxjvM4388SW5bv3uGr8y++V04EQRAsrEpPV6TlNelVIGDX2ZeQDnVLJw5KHySlxEI1CB6W270sYPvOHJb2zazUnhxNSp++V6sa2G2W16QnL6X5VenPFamr/Kr2AtFiNzvUXWtUkiprUtdawwvAblZ... | 0 |
math | grade-4 | what-decimal-number-is-illustrated | false | true | What decimal number is illustrated? | "iVBORw0KGgoAAAANSUhEUgAAAKQAAACkCAYAAAAZtYVBAAACb0lEQVR4nO3bQUpcURRF0V/iWBxRBiIERxEKMpCMKJP5doP4K49A8vYlazWVK9XYPmwcb+d5ngdEPO3+APArQZIiSFIESYogSXl+9M3b/eVffQ7+M+fXn59+/fKFFCM7PHwhj+M4Xr+8/dEP/v7j28jbq9/c37ndX9wu3j3ib0hSBEmKIEkRJCmCJEWQpAiSFEGSIkhSBEmKIEkRJCmCJOV29V+H5mf8TVdLIfOzD7eTplwTb83PGEWQpAiSFEGSIkhSBEmKIEkRJCm... | [
"0.40",
"0.29",
"0.28",
"0.38"
] | null | 0 |
math | grade-1 | comparing-review | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAYAAAACGCAYAAADU6V0WAAAruklEQVR4nO3dd3hc533g++850zANg0HvvRCsAkmxi5REkaIlUc2UHSuWVpG962Rj+zrXcbL3OuvserWJN4lsR4438VXsuMreWM0SVUyRqpTEJrGTAAvqoM5gBtPrOe/9Y0CQlCWapMBhwft5Hj0SgcHBme8R8cOZU0YRQoiRFJyIQViDjECSJEm6BhkVcBqgxQZlZlBGkkLsCl3u1ZIkSZJyaWk+GI/Hsn+oMEObPTsdJEmSpGtPWIOuKAyn4FgM1FAm+wn5w1+... | 1 |
math | kindergarten | one-more-with-pictures-up-to-5 | true | true | Count the planes in this group. Which group has one more than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAAWdUlEQVR4nO3d2XNc12Hn8e/pvdF9uxu9YWmAIACukkyCWkhprEgpS47jxM5MbCvb/Afz4io/+i+YP2CqUjVV8zI1ysRJxVI8sl0OJVsWJcWSLFKkRIoLiI1oYmtsvaD3e+YBJEQ4kkyTTXD7fapEgujGubfx9NWpc88x1lqLiIiIiIh0hOdu34CIiIiIyINEgS0iIiIi0kEKbBERERGRDlJgi4iIiIh0kAJbRERERKSDFNgiIiIiIh2kwBYRERER6SAFtoiIiIhIBym... | null | [
"iVBORw0KGgoAAAANSUhEUgAABCEAAAB+CAYAAAAa5QvPAAA8uklEQVR4nO3d55Nc15nn+e9N732Wd6gCQBgShgYgRSOpKTOtbnWPXPf0zM7sbvSLjdkX0zPzqnf+gd2Ifdc7uxNjeja2p63UMi3XoyYpigRI0YgECQIgbHlfWZWV3t+zL7KqgKIFgUKiIP4+EVKBlVnn3rznnoznPPcYCzCIiIiIiMiOMMawWIerZSi0oKloW0Q+pVwWhJ2wLwDdnvbvLJSEEBERERHZMYs1w2v5u30WIiK7y8kIdHnAdbdPRERERETk18mVcvt... | 1 |
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 sizes. | "iVBORw0KGgoAAAANSUhEUgAAAksAAACtCAYAAACgPzu0AAAwsklEQVR4nO3deXhU9bkH8O/sazLZQ/YACQTCnrCDELaAolIV91asVatovW1dr7bXVu91uW1d6BWsikIRRQpWsGgVEBBkhxAWCWHJvi+TzExmP3P/iESWZDKTzMzvnDPv53l4HglzznlnPPPmPb9V4vF4PCCEEEIIId2Ssg6AEEIIIYTPqFgSsKKiIkgkksv+KJVK5OTk4Omnn4bZbPbrfLfccgvmzJnTp1iOHz+OnJwcREVF9el4Qog4LFq06Kq8FB8fj9mzZ2PXrl1... | [
"The magnitude of the magnetic force is greater in Pair 2.",
"The magnitude of the magnetic force is greater in Pair 1.",
"The magnitude of the magnetic force is the same in both pairs."
] | null | 0 |
engineer | grade-7 | identify-independent-and-dependent-variables | false | true | Hint: An independent variable is a variable whose effect you are investigating. A dependent variable is a variable that you measure. Which of the following was a dependent variable in this experiment? The passage below describes an experiment. Read the passage and think about the variables that are described. Susan was... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAE3CAYAAADBi3hdAAEAAElEQVR4nOz9ya8tWZbeif12Z2anuf315++5+/MIz4zMrGQmM5glZhaLFFSkJAgokYIESQOJoATUoEb8FwQNNNJA4qggQMX/oAQUCiyxJIoDKdkALHZiRHaRXTQe/vz1tzuNNbvTYO1t51yPTFJikfQUQAPua2537JjZXnutb33ft9Rf/at/NfNvj397/Nvj3x7/f3T8tb/2176W17UA//j//n8jhED2E1YbLs5OODs9wWrDNA1s9zum4Bl9YggenzJTjviYCSnSaot... | [
"the type of liquid used",
"the number of rusted steel squares"
] | null | 1 |
math | algebra-1 | special-right-triangles | false | true | Find t. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC+CAYAAAAP4XhrAAAfWElEQVR4nO3deXiU9bn/8c9kspGFBJKQWJbATwQLVbYLZfmdIAhpTEDBg4Ch1SBUCz0eoOBh0YJhCVBr1fKTKsshvVpTBCxRSQrRImCFKpcsChRwgUDEAAlkX2cyvz+GpFASSCbPzGTC+/UPJPPM89z573N9r/u+H5PNZrMJAAAAgCG83F0AAAAA0JoQsAEAAAADEbABAAAAAxGwAQAAAAMRsAEAAAADEbABAAAAAxGwAQAAAAMRsAEAAAADuSVgl1aX6+PzR9zxaAA... | [
"$8 \\sqrt{2}$ meters",
"$4 \\sqrt{2}$ meters",
"4 meters",
"8 meters"
] | null | 0 |
math | grade-4 | what-decimal-number-is-illustrated | false | true | What decimal number is illustrated? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFICAYAAABqXYnbAAAKx0lEQVR4nO3asY2z3BaG0eHKBdCYI9eBnFEEmUUdjtwYHZwbTMr/WcALPmPWSmGjY2lbemzRlFLKDwAAEPG/Tx8AAAC+icAGAIAggQ0AAEECGwAAggQ2AAAEXf51sR2Ho87ByUxdv3jGPrIX+0hN7CM1WbOP/OMfbF9WamIfqYl9pCb2Eerzz3+wf35+fu6366oHP54vs2Zn57b4S5/VbP2z9tFsTbP20WxNs1v38ey8gw0AAEECGwAAggQ2AAAECWwAAAgS2AAAECS... | [
"4.34",
"4.14",
"4.24",
"4.41"
] | null | 1 |
math | kindergarten | select-two-dimensional-shapes | true | false | Which shape is a circle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACbCAYAAACao4KyAAAN6klEQVR4nO3daXAUZRoH8H/PZCbJJJNkcpJACAkh4QyEcERUWEEUqLB4sW4toHhrIR6rruuBZXniSnmsgrKuFC6i1KqlG7Rkl0vK5ZQcBAgkhBwIk0kIk5DMTCZz9X6I7CqLYJ9v98zz+5Li6Pd5qPnz9kzP229zPM/zDh/Q4AF6gkCAByGSRXGA1QgMswAZZoBz9PH8vm7WbZFwNjkBiDrm6f9FphkojOtPISFS9QSBOjfQ6gPqPYChO9D/BxQyIiersT9TAOA... | 0 |
math | grade-3 | match-mixed-numbers-to-models | false | true | Which mixed number is shown? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABkCAYAAAC8REciAAA9lUlEQVR4nO3deXycZ3nv/88zM5rRjPZ9l7XZlix5X+MtjpOQhSQsvwQolFNooWVp+XWjy+kC9LS0UNpToCxlK5SmEAiQkBAI4DjxvsuWbEm2rH0fLSNp9vU5fzySbNljbbNITq73P7GlmXvume8rr7l8P/dz3YqqqipCCCGEEEKIqDAs9wQWYnTITV+XneEBJ45JHy6HH6fdP/VfH25nALPFgCUlAUtyAknJRu2/qQmkZyaSnW8hM9eCMcGI163i90JOsbLcb+t1RTJ... | [
"3 2/9",
"1 2/8",
"2 1/7",
"2 1/8"
] | null | 3 |
math | pre-k | represent-numbers-with-shapes-up-to-3 | true | false | Which group has 2 circles? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAIiElEQVR4nO3dSWicdRzG8eedfTKJbaNN41KwndhUlKJiq0Xx0FooouDBDdSDICJekhaKtFDRg0vFknoRvHlQtEpBFESKgge1WkoUY5e0ca9tSkJaO+lMZn09jK+EZqZNZvv9fu88n4tIxPln+s0sb5Mnjuu67ngOGEsDqSJQcEGkTsgBuoLADR3AsgjgjGdd9+B56WMRzd8dVwChE+nyv1wdAfoT5aqJtEkVgdELwOkccDwNBM4Xyh9gtKRZV7DcKABMF4FAcdY... | 1 |
math | grade-2 | identify-multiplication-sentences-for-equal-groups | false | true | Which expression describes the model? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACHCAYAAAAslC4OAAAhNUlEQVR4nO3dS3PqWoIl4CUBwjxsA+YYY/C5EZm/r/5PRWdV3B7cykn1qLsH3REVVR3dg6pBd8S90xuROfAL/JQwbwFSD0h0JCE/gK3X1voiHAk+eYzuYXlpo70lKbZt2yAiIiIiIiHUuDeAiIiIiEgmHGATEREREQnEATYRERERkUAcYBMRERERCcQBNhERERGRQBxgExEREREJlI97A8JkWRYWi4XzZZomFosFVqsVbNuGZVmwLMt5DACqqkJRFKiq6jzO5XIoFAr... | [
"4×2",
"3×4"
] | null | 0 |
math | kindergarten | count-scattered-shapes-up-to-10 | false | true | How many hearts are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAFACAYAAADJUwhmAAA7sUlEQVR4nO3d6XMU57328au7p6dnNNqR0GYEArNKZjEEsJ08idfEW1IuO+dUPe+f/85VOXG8nJx4CT42DoYYIjbbAoQAowUtIGn27unnxVjxhkHLLN0930+VqlyApVvTM91X3/27f7fh+74vAAAAAJFg1nsAAAAAACqHgA8AAABECAEfAAAAiBACPgAAABAhBHwAAAAgQgj4AAAAQIQQ8AEAAIAIIeADAAAAEULABwAAACKEgA8AAABECAEfAAAAiBACPgAAABAhBHw... | [
"6",
"9",
"8",
"4"
] | null | 0 |
science | grade-3 | identify-mammals-birds-fish-reptiles-and-amphibians | true | true | Birds have feathers, two wings, and a beak. A robin is an example of a bird. Select the bird below. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAADJy0lEQVR4nOy9d7xsVXn//15r16lnTrv9Xi5waVIFC4JCsEQxBBsIllgTjbEEe0tMjEYxGDHBjhiJaDQaYyTGqOhPpIhIEemXevu9p5/ps8tavz/2zNyZOTPnnAuH6FfX+/W6MLPL2mvv2Wfms579eZ4ltNY6iiKUUhgMBoPBYDAYDIb/d5BSYtt29zIj7g0Gg8FgMBgMhv83UUoRRVHXMmnEvcFgMBgMBoPB8P8uvXpe/ob6YTAYDAaDwWAwGB4DjMA3GAwGg8FgMBh... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6cAAADMCAYAAACPx9V0AAEAAElEQVR4nOy9eZwtRX3+/66qXs45M3Nm7r7BZbtssiluCAqi0YgiKkJcE7dEY9zAuG/RYBSDignuiJGIRmO+RiVqVPQnKogIEgRkh3uBu9/Z52zdXVW/P6q7T8+ZM8uF6xLTz+s1987ppaq6Tp8z9fTzfD4fYa21SZJgjKFEiRIlSpQoUaJEiRL/eyClxPO8Wduum4LDB2BI/Z4GVaLEIpjWcHsDtkewzIPHj7jtsiSmJUqUKFGiRIkSJUr874QxhiRJZm0riWm... | 1 |
science | grade-4 | compare-properties-of-materials | true | false | Which is the stickiest? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AAAwrUlEQVR4nO2deZxcVZn3v/fWXr13utNZOhshhF0wbBFQFEZlhHGDmYGor4o66sdRcRuc8R3CwOuCDIoi6qsSEVwYwQ2H4SXKMkS2EAkJywCGkD2d3rfqWu695/3juSd163ZVd1Wnu6o6qd/ncz+13XvuqXt/93nOs5znGBsHlVpZBw0BaqihrBi24cVR2JeGliCc0yzfmzVC1lApNARgZZ28H7Gz35s1QtZQSWj+ZVT2O7MyXamhhsKokbKGqkONlDVUHWqkrKH... | 1 |
science | grade-6 | identify-elementary-substances-and-compounds-using-models | true | true | Look at the models of molecules below. Select the elementary substance. | "iVBORw0KGgoAAAANSUhEUgAAAKIAAAAiCAYAAADcQgLDAAAJ+0lEQVR4nO2beVhU5R7HPzOOOsCwS8oiaMrFXEJBFBdQEUXIcAlQy6TcKHdRU69mZco1TQzDG8m1cskULRXNHZUg1BABEZdMZUeZYZlhCWkY+gMZJdm83fswf5zPX+d5z/v7fb+c8z0v74HniKp3rKhBQKCVEdWUK4UgCrQ64tY2ICAAQhAFdAQhiAI6gRBEAZ1ACKKATiAEUUAnEIIooBMIQRTQCYQgCugEQhAFdAIhiAI6gRBEAZ1ACKKATiAEUUAnEIIooBNog1i... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAVEAAADMCAYAAADK+ZBrAAAyk0lEQVR4nO3deXxU5d3//9eZM3smuywhEdlBWSIiCihqLS5gra1r7W217a3VUlurta2tSxdbf9a2VFx+X7/lxmprN5cbl9at2krVKiqCICAohC0JZJ+ZJLOd5fvHmXNmJgtJmCARPs/H4zwmM3PmnGsymXeuc67rXJcCmAhxkL0dNplcAIXqwS6JED2L6rC5A+qTUOqGk0usx10HtVRCpEmAiqGuULX+TgHa9czjEqJiSJAAFZ8E9t9pKuv4XUJUCCHyICEqhBB... | 2 |
math | precalculus | solve-a-triangle | false | true | In solving this triangle, which law must you use first? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADaCAYAAACchDUnAAAcuUlEQVR4nO3dbXBUdaLn8V+nu5NO0t0JHYiCi6DsdUpHUWu0ABUZXYYRlVxHalaKtZx1Z5gXu1I7vnBni3WYqjv3DlOWa9253iqpcpSymKma3RpHDARBWXwMBGFEI1QNPgXJ1ShJOunTz+mHsy9OjDKEp6S7zznd388UL+hukz+J4Hea07/2mKZpCgAAAEBJ1Nl9AAAAAKCaENgAAABACZ0S2LFYTF6vVxs3bpz0watXr9a8efMqcjAAAADAjU4J7P3796tYLOqmm26... | [
"Law of Cosines",
"Law of Sines"
] | null | 0 |
math | grade-5 | identify-parallelograms | false | true | Is this quadrilateral a parallelogram? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACUCAYAAACp1l47AAAQuUlEQVR4nO3dS5sc1X3H8X9V1/Rlpnume3pGClgeB8fCj7jIfhRQDAZshIMxl0gg2GSRbV5AVnkh2XuPhISlR8YoGPmRrYAtCFaCY0sBKyOHh9FM3+/d1XWyGLlOaxPN0VR3XfT9rM7ZaM5m1L/p+tX/WEopJQAAAAACYYd9AAAAACBJCNgAAABAgAjYAAAAQIAI2AAAAECACNgAAABAgAjYAAAAQIAI2AAAAECAnLAPEJTG+x2pnmmJvSBipa2wjwPEjlv3JHN/Wr7... | [
"no",
"yes"
] | null | 1 |
math | grade-2 | name-the-three-dimensional-shape | false | true | What shape is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADkCAYAAACi9FP6AAAqsklEQVR4nO3deZRc9XXg8W/1qm5J3VILLQitaAchYRCbAQO2sQnY4AUDDjE6YSySTEySk8SZcc7x+IxnsnscO57jeCC2IxIHG4MxBptgIwQGI2xAoAW0oh2hDe1Sd0vdXfPH7ZZara27VdXvVdX3c06frqp+/d5FKo5u/d793ZvJZrNZJEmSJOVEWdIBSJIkScXEBFuSJEnKIRNsSZIkKYdMsCVJkqQcMsGWJEmScsgEW5IkScohE2xJkiQph0ywJUmSpByq6NZRD/0... | [
"sphere",
"rectangular prism",
"cube",
"cone"
] | null | 1 |
math | algebra-1 | write-compound-inequalities-from-graphs | false | true | What compound inequality describes this graph? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAL+klEQVR4nO3da0yTZxsH8H+BAoJARcirDgENWuUgKsjBA6/KpmxON8D5wrZsZgszO2f7wiJ+2AFJlm0umVtCiGFu2ZBgAtucopIa0WDWCWhtUYpTizoTBkNkUGkr9P3AWgVaKKzr87T+f1+wdx+S/2VLvLy5nrsSs9lshgepqKiARCJBfn6+0FH+EdYhLqxDXDylDiIi8kw+Qgdwths3bggdwSlYh7iwDnHxlDqIiMgzOdxgm0wmNDU14ejRc5DLZdw5onEpFDqcONG... | [
"$-8<x<-7$",
"$x<-8$ or $x>-7$",
"$-8 \\leq x<-7$",
"$x \\leq-8$ or $x>-7$"
] | null | 3 |
math | grade-3 | scalene-isosceles-and-equilateral-triangles | false | true | What kind of triangle is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADOCAYAAAAEw3WqAAAnN0lEQVR4nO3deVxWdcL+8eu+AdkFjZhQRhRFpSQZH52wkZloIRtsdyfNtFxSc80tRExzX1DQcUkkFBT3PbXS+umUNpZNlnuIhI9L5sYqy33//miGZ8ZMAYHD8nn/hwLnul+v/ri8+p5zTFar1SoAAAAAZcJsdAAAAACgOikq2CEhIfLw8NC0adOUnZ1tZCYAAACgyjL9+4iIg4ODbt68KUny8PDQqFGjNHDgQDk5ORkaEAAAAKhKigq2p6enfvrpp//6S09PT40aNUp... | [
"isosceles but not equilateral",
"scalene",
"equilateral"
] | null | 2 |
math | grade-4 | compare-decimals-using-models | false | true | Compare 0.6 and 0.7. Use the models to help. 0.6 ?0.7 | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC0CAYAAACuelsNAAAH6ElEQVR4nO3dS0jVfRrA8ccao+iCQUW3jVCklBRuWhQU3d5u0EW6LYKYahFEUFBthqCa1QvRqtq9BIG18UDQhRYtIqIsoUVKEFSrgkLKiqy0OLPSSSebyR61OX0+4OL88Od5jv6Er3+PnrJisVgMAAAgxbChHgAAAEqJwAYAgEQCGwAAEglsAABIJLABACCRwAYAgEQCGwAAEglsAABIJLABACDR335m8/BD17LmoER8+fOPIblfZ5HehuosAoAr2AAAkOinrmB3+ef... | [
"=",
"<",
">"
] | null | 1 |
math | pre-k | spheres | true | false | Which shape is a sphere? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAASo0lEQVR4nO2dW3AUV3rH/4M0YnRhNEZCErqgu8TNXAxGuBDgJc56azdbzj7s5WUrSSVbm5fElZfkJbuVqlTlIUml7Di7WduxvRgcY3bXjo13bS9YIAmhm2XAIIMkZEmAsIQl0H0kJO3k4ZtD91wkjWZ65pzu/n5Vqj60erq/Qv/5+vTp7/yPw+fz+YYeADdmgMlFYMEHhlGOZAewLgmoTANyUwDH0JzP1zYhOyyGiZwaN5DcM0P/2JgCVKeTqhlGNSYXga5p4Ms... | 2 |
math | grade-6 | changes-in-mean-median-mode-and-range | false | true | Look at this set of 5 numbers: How would the mean change if the number 7 replaced the number 2 in the set? | "iVBORw0KGgoAAAANSUhEUgAAAJ4AAAAkCAYAAAB41INoAAAEdUlEQVR4nO3cW0wcVRzH8e8MC8vCdqnI0t1y6Vou20KoUllLoLYkWh+INg2x3vrgk4nxrT60MSbG1GhiNCbGN+Ml+mBqRK3pS7XGtlaNoBCoUGBhuQXk1gW5dXfZy/iwlAQJoYlzZrLhfN44k5z/5M9v58wchlU0TdMAiIEWBhJAckSS9KEAKiiZgGV1SNM0TQsDERNPTNo+rMkAqloMGTrJOBHQYqDK0EmGi4BK3OyzkLadOKjyQUIynAaq2ecgbU8yeJIpZPAkU8j... | [
"no change",
"decrease",
"increase"
] | null | 2 |
math | grade-2 | am-or-pm | false | true | Ethan is putting the dishes away after breakfast. The clock on the wall shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABL1UlEQVR4nO3de3RU5b0//vfee265zCQhIJcEuVkhoQXElkSttKcaXBWP67sMtlJ72oNttV3r6wmuiv7RQlfB/lGhS9Cu1apHaI8eL5X4+60eaX8m0nNOKpBoi4BlIlYClAkxBkiyc5vLvvz+mGTIkLk8M5lr8n6t5SIz88zM02R257Of/Xk+H8k0TRNERERERJQScrYnQEREREQ0lTDAJiIiIiJKIQbYREREREQpxACbiIiIiCiFGGATEREREaWQJdsToBygm4Buwhz... | [
"6:00 P.M.",
"6:00 A.M."
] | null | 1 |
math | grade-4 | sides-and-angles-of-quadrilaterals | true | false | Which quadrilateral appears to have 2 pairs of parallel sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAADgCAYAAACaXl3yAAAKCElEQVR4nO3cTWxU1xnG8WfuzHgY48nIH6ljB9XIxUANAbmYhippQ1tYVBVRE7ck6UdcKYWqStRCJRIZiUa4iyrxplITKSGkUsuKKGxIURbJJos0FVhNqxQjmyxqqeKjBht7jGPPeHy7GE16GNv42r73nvOe+/w2CSLxnMVfj17x4Zjruu61PPDpFJArArMuiIyTiAGZONBWDTRWAbFrM657fkL3s4i8e/AeIHF5qvSDpipg09pS1USmyRWBwdvA1TwwNAU4E7O... | 2 |
math | grade-2 | symmetry | true | false |
Which picture has symmetry? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAiUUlEQVR4nO3deWBU5b038O/MZPZJJvuekAQCCbIpKGG7BATEFa+3b91qta+v6FvrBdtetW6vxQWXurVir2i9VbC2FRQUVNxAQQgEC0kwCWSFZMhknSyzz5w57x+TCYTMJOfMnMlJJr/PP5bknOc8SfOd55znPIuEZVnW6ARqrUAfA7hZEELCJEoCRMuAfA2QogAkRgfLHukVu1qETDzzY4CoGqv3H2kKYJrWm05CSHj0McBJC9DiBE5ZAWmv2/sNCh8h4Rct82Y... | 1 |
science | grade-5 | identify-magnets-that-attract-or-repel | false | true | Two magnets are placed as shown. Will these magnets attract or repel each other? | "iVBORw0KGgoAAAANSUhEUgAAALoAAAIKCAYAAACUW1WtAAAzqElEQVR4nO2deZRkVZ3nv2+NfcmMyMitFqpKgSqbKQZQWpYClOMRlQaERsXutrV11AG1RVpRcEG7URgHAUXbsWdEbdtWexBEG7cWRijsUqimUKporCpqyTUyImPfXrxl/ojMrMysXCIzlvfevb/POXkqEyIzb7z3yft+997f/V3BsiwLxLqx6ha0CR31SR3apA4jb8CsWDArJoyKOfe5WTFhli0YRRMAIAVFiH4Bok+c+RAgzftcjkhQ+mUoCRnqgAxBEWx+p+5GING... | [
"repel",
"attract"
] | null | 0 |
math | grade-7 | simplify-expressions-by-combining-like-terms-with-algebra-tiles | false | true | These tiles represent the expression 2+3x+4. Which expression is equivalent to 2+3x+4? | "iVBORw0KGgoAAAANSUhEUgAAAN4AAABoCAYAAACe9E7fAAAFwUlEQVR4nO3dTWwUZRzH8d/sbqX2hbfSQqFaKSHKm7FFINHEEGMTwZNpTDgYvRhjokQT8ULkwgHl5oUDiXIzgqHhpCbWXjCRiKYIpgVS23SFvtiWVEt3LaGz4wGVlhaS7s7MMzPP95P0sofnv233l5k+8//3cTzP8wQgVCnTbwCwEcEDDCB4gAEEDzCA4AEGEDzAAIIHGEDwAAMypt8A7OGOtsvLXfZ9Xadyk9J1bcbrLWqNJHaudI11aDjf7/u69RVNaqltta6eH27... | [
"3x+6",
"9x",
"7x+2",
"5x+4"
] | null | 0 |
math | kindergarten | compare-sides-and-corners | true | false | Which shape has more corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALgAAAC4CAYAAABQMybHAAAFXElEQVR4nO3dzU4bVwCG4c/8ZJGftqs2vYC26hXkNnJPvYDeABILsgiLNF20EVIVoUjdhEW6YJWCKoFDDAYaY2cAG49PF4NbNIJgEujM+c77rBIRKQd4Y38hMacRQgjbA2n9UOrl0jAIiNZMQ7o3LX1zW/rqltTY7oew0q36WMD1e/CZNLN2WPzk61vSd3eK+oFY9XLpdSa1BtKfh9JUd1i8gbjh4N500bIkvc+lqfzMGwAH45ZPgjRV7VGAm0XgsEbgsEbgsEb... | 0 |
math | grade-5 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAENCAYAAAA1yBIEAAAhUUlEQVR4nO3deXCceX3n8c/T/XSrdduyLcm2fI1kz9RM8MDsQGVqhoXhWqgEhmMHBjYLA4SCzW6yVCrZIpxmEgi12dpKyEWY5dgQThfnsuEYCBBguRkMczC25EuSdfjS2ZK6n2P/0PH7yZZkS+p+nqe7368q1zwzbkuPbT01b//87d/PCcMwFAAAAICSSMV9AwAAAEA1IbABAACAEiKwAQAAgBIisAEAAIASIrABAACAEiKwAQAAgBIisAEAAIASIrCBCjFUkJ72w4J... | [
"no",
"yes"
] | null | 0 |
math | grade-4 | transportation-schedules | false | true | Look at the following schedule: Janelle is at Magician Village. If she wants to arrive at Chickenville at 5:30 P.M., what time should she get on the train? | "iVBORw0KGgoAAAANSUhEUgAAAh4AAADjCAYAAADKUB2kAACegklEQVR4nOzdZ1QUSbiA4XeIgoBgREVQUUAFEQOiYEBAMaAIiooBs65pXXNOaxZzzghKEHMWxIQRzDlnRVdUgphI9wfL6DgDDIq49956zplznO6qnur2m56vq6obSbXhYekIgiAIgiDkAzWAyV0cfnc7BEEQBEH4P26i/wlUfncjBEEQBEH4/0MkHoIgCIIg5BuReAiCIAiCkG9E4iEIgiAIQr4RiYcgCIIgCPlGJB6CIAiCIOQbkXgIgiAIgpBvROIhCL/AmcO7aWW... | [
"7:15 P.M.",
"4:30 P.M.",
"1:00 P.M.",
"7:45 P.M."
] | null | 1 |
math | grade-2 | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABb20lEQVR4nO3de1yUZfo/8A+IAzKMB4aDQ6kDKmgybYUFmAeU0g6ClVZKv912V2m3djfZ3Q4b7NbWrrYddhfqW9umbu2h0Uorwba0MFADLOk0qIE5jKaDg4ynYRBGlN8f7EyMzOGeE8Ph8369fAXz3M/z3Cnz4pr7ue7rCunq6uoCERERERH5RWiwJ0BERERENJgwwCYiIiIi8iMG2EREREREfsQAm4iIiIjIjxhgExERERH5UViwJ0DBd9ZyHm0dnTC3d3b/t6P7v2H... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABqgUlEQVR4nO3de1yUZfo/8A+IA8JMKsO51AEVNJmyxRI8opS2FVhpm9Jvq12l3Wo32UO16W5ttdppD1Df2jZtq90NrbQSbBMLwzOWlDp4AHUYLQcGGU/DIIwIvz/YmTjM4Z7zAJ/36+UrZp77eZ4rnKm55rrv6w7q6OjoABEREREReURQUJC/QyDyu2B/B0BERERERET9CxNNIiIiIiIi8igmmkRERERERORRTDSJiIiIiIjIo5hoEhERERERkUeF+DsA8r+Lpst... | 2 |
math | pre-k | select-solid-shapes | true | false | Which shape is a sphere? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAX10lEQVR4nO2dTWwb153Af2+GFCnqw5Iox7Ys+aOOFDSA7SIF1g4WjRsD6cGB00PcW5JTgyzQ3QRtekrby6a7uTRoku4C26Z7WDunTX1YB/Ypa8cusHZ7SCMVSDaSF7Yj2bIjUaIsiRTFmff28DgjUqJl8fvr/S4Uh+TME+fH//zfx7wnlFLq7ipcT8CiC47CYKg7AgK6bBiOwI42EHdTSv35fq2LZTBsnSPdEJhI6Ce72uCxDm21wVBvLLrw5TJMr8J4Aqz7jn7... | 0 |
math | grade-7 | rational-numbers-find-the-sign | false | true | The number line shows an unknown number, t. Is t positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAlwAAAApCAYAAADgbPfrAAAGTklEQVR4nO3dXWhUZwLG8efEnUnMRzWNHyutrqS12CDEjzgmom1gYcEVIWMt1F7Y2EBaRZD2Rloom6Wp1Ku2oKBg3VYwSAsx4G5hWS86CZSZiZNk6GDaajXVFvykLSYmmTGevZjMxBjjJNaZ94zz/13NOTMZnnBunnnf97zHsm3bFgBkkZaWFlmWpa1bt5qOggzhmiPb/cl0AACYrkuXLpmOgAzjmiPbTblwxWIxhUIhBQIBzZs3j18ZadYU/FS+X3rUc+2sZucXa/n... | [
"positive",
"negative"
] | null | 1 |
math | grade-2 | flip-turn-and-slide | false | true | What has been done to this letter? | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAElElEQVR4nO3cz2scZRzH8U8k2AoN3ZocmoOW1J+3YFsoxcJO/gSvOe1CTxXFi+Bx8ofI7kUCnnJoL6UkTbBQitVRc/IXNFRaadRtldZU4fGw1Ez3R3Y7M7v7zPN9vyAEdibffbJ5PtnJ7jffqWq16qIoUhE2NzflnBP1stfb2NgopNakRVHk9eNsrd50FEWK47iQgisrK3LOUS9HvVCwr/yq90IhlQB4jaADBhB0wACCDhhA0AEDCDpgAEEHDCDogAEEHTCAoAMGEHT... | [
"slide",
"turn",
"flip"
] | null | 0 |
science | grade-3 | identify-plants-and-animals | true | false | Select the animal. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADeCAYAAABL7FARAAEAAElEQVR4nOz9d3Qc15X2jf5OVXUCGmjknANBgDnnHCSKonKW5bHlnG2N4zjMOI3Hljy2xzlKVs6JEikx5xxAEkTOOWd0rKpz/6huAJTpGfmd79713bXew8UFoLu6uqrOc/Z59rP3PkecHZGyJBpiVP5v+7/t/5VtzICaCegKQrwGq+Os15X/C9z/2/7f3mJUKIm2fh83pl5X/i9w/2/7/4cWwWlITr2mXe/A56+MIYSY/FtKee3fAqS0/laQ13xWChM5dShCghA... | 1 |
math | grade-1 | find-the-next-shape-in-a-pattern | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADhCAYAAAC9ZMGZAAAcOklEQVR4nO3dfZRddX3v8c/e52EeMzNGkknCQxJCgjqJBAXUEFCCAm2DC4loq/dWl5T+AZW7lNvrWq0YBK1LrVK0eq/FitgWlUXUVmoTWh4iQR5C1ZAEgklISEjMTEKSycyZmfO09/1jmDDJZB7OzH747d9+v9bin5Czf7/vb3/35HP2/M4+ju/7vgAAAABYwY17AgAAAACCQ8AHAAAALELABwAAACxCwAcAAAAsQsAHAAAALELABwAAACxCwAcAAAAsQsAHAAAALEL... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAADhCAYAAAAJS2C/AAAhmklEQVR4nO3da5RdZZ3n8d/e51L3OmUkVQmBkJgLaohEBdQQVKJCuo0uJN5G1ohLGl9gN72U1c0sWwXBbhfYQqutMw62GGYNXhahne60k6IFiSQihBFCCARTMSGXsqoClVSqTlWd297z4uQkldT11Nn3/f2sxQuSOvt5/s9+suv8zvPsfQzbtm0BAAAAiATDMPzuQiCZfncAAAAAANxG8AEAAAAQeQQfAAAAAJFH8AEAAAAQeQQfAAAAAJFH8AEAAAAQeQQfAAA... | 1 |
math | grade-7 | identify-equivalent-linear-expressions-using-algebra-tiles | false | true | These tiles represent the expression 8x–3+2x+9. Which expression is equivalent to 8x–3+2x+9? | "iVBORw0KGgoAAAANSUhEUgAAAdAAAABoCAYAAABBs6GsAAAL2ElEQVR4nO3dT2wcZx3G8Wdm194062xcFrt1sm5xKgpxgPyBxJUtVTRt0gInZCGhqimXCiGBCyrJBYWLpTakqaJeckAqVBwQtMo2p4LU4CpNZUdKkUOgjkFJqrXsJut1kC3X6787MxxCrbjdxvbsO5l69vuRfJiV9T4/abR+8s7ObCzP8zwBAIBVscMeAACAtYgCBQDABwoUAAAfKFAAAHygQAEA8IECBQDABwoUAAAfKFAAAHyIhz0AgGDN9fXKGRkxvm4sk1GivcP... | [
"10x–6",
"5x+11",
"10x+6",
"10x+12"
] | null | 2 |
math | grade-8 | identify-trends-with-scatter-plots | false | true | Does this scatter plot show a positive trend, a negative trend, or no trend? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAlGklEQVR4nO3dfXCU1cH38V8CxCQEwpMEzRIS4AaaJZQhL9hkRWlVKi8aQaeCRacqQimdooK22HvmFsSXRseKFcUXwFeqaKk3FAdBHlCKPEkcFnA0YWmpQAIkIokhhIArsM8fSDQmG0j27HXtbr6fGWfc65CcXwgz+eXsuc4V5fP5fAIAAABgRLTdAQAAAIBIQsEGAAAADKJgAwAAAAZRsAEAAACDKNgAAACAQRRsAAAAwCAKNgAAAGCQZQX75MmTOnnypFXTAQAAALa... | [
"no trend",
"negative trend",
"positive trend"
] | null | 0 |
engineer | grade-6 | identify-control-and-experimental-groups | false | true | In this experiment, which were part of an experimental group? The passage below describes an experiment. Trudy has a bubble machine and wants to know how to make the bubbles last longer. She read that bubbles burst when the liquid that makes up the bubbles evaporates. Trudy knew that when liquids are warmer, they evapo... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAE3CAYAAADBi3hdAAEAAElEQVR4nOy9d7hkR3Xu/avaqXOfPGdykjQjjXJCgSBENEFkjDFgG2MD18ZgY1/b+HJ9bYMJNjiAMcmInBEIEEI5Z42kURhNznPyOZ27d6z6/qjdfcKMhACD7vc8t+bp6XB2qKpdtepd7wol/uiP/kjz/8r/K/+v/L/y/6Py8Y9//Gm5rw3w0rM/S39/mXzOodGC8TGL7bsUt97d5N4H60QJJBKEBVoCGhIgSTzQDhkdYunwmIuLVBRbQhz3d1O0qYQAtDlO0D1ept8... | [
"the bottles that were at room temperature",
"the bottles that were cooled down"
] | null | 1 |
math | grade-1 | which-tally-chart-is-correct | true | true | Jon went to the park. He saw these snacks at a cart. Which tally chart shows the right number of each snack? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAB58ElEQVR4nO39eZxkdX3o/7/qnFN1autaunpfZqZnYXYGlBnkBgMIJLmIGjXqVeNVUBKImEeMMRq5D0d8JCr4I9G43cT7lSgaFUGISkIEZRBxdBgFZgOGme6epfeurqVrX875/VHT1V1dVT3VQ/d0dc/7+XjwoKtO1Wc+p7p75n0+n/d5vy2maZoIIYQQQgghFoSy1BMQQgghhBBiJZEAWwghhBBCiAUkAbYQQgghhBALSAJsIYQQQgghFpAE2EIIIYQQQiwgCbCFEEI... | null | [
"iVBORw0KGgoAAAANSUhEUgAABEgAAAEOCAYAAACaQiIAAADRPElEQVR4nOzdd3gj5bX48a9mRl2W5F63V7awkLBLuAktQAothZBOAgmk3MBN+CVc0gmENLikkeTeNEgoKZQQICSEEmApmywbYBvLNpfddZOLitU1Gv3+0Fq2LMnWFu/a3vN5Hh6smdHrd2ZlW3P0nnNMmUwmgxBCCCGEEOKwMJlMR3sKQgghDoJytCcghBBCCCGEEEIIcbRJgEQIIYQQQgghhBDHPAmQCCGEEEIIIYQQ4pgnARIhhBBCCCGEEEIc8yRAIoQQQgg... | 0 |
math | algebra-2 | domain-and-range-of-absolute-value-functions-graphs | false | true | What is the range of this function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABlIElEQVR4nO3dfXxU9Z33//dkZnKfkJBAgEBARKggQVFUELwpVl1tbaHt0vvaddvarbXtXuteXvtru9terlcf25vdumrv1q26V/fRq27RrmigWFAoKEiEQAIiRgwEyM3kdiZzc2bmnN8fdFICQRI430wmeT0fDx9thpz3fHLOzJn3nJw58TiO4wgAAACAK7LSPQAAAAAwllCwAQAAABdRsAEAAAAXUbABDFBZWant27f3f3348GFNmjRJTU1NaZwKAIDMQcEGMEB1dbX... | [
"$\\{y \\mid y<1\\}$",
"$\\{y \\mid y \\geq-1\\}$",
"$\\{y \\mid y \\geq 0\\}$",
"$\\{y \\mid y \\leq-1\\}$"
] | null | 2 |
math | grade-7 | identify-linear-and-nonlinear-functions | false | true | The graph shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABg9klEQVR4nO3dfXyU9Z3v//dkJvc3JCSYQDBBRKJggoJAQVAsVq22ttAbbLe17rHt6qm9++2j++tjT7eP067H09/u2j111Xp6tlt1t49Ht56qVTEgCgINlZsIgUQFRAgJkDtyN/fXzFzX74/cSAQkkevLZMjr+XhoMpO53vPh+s585zPfuWbG4ziOIwAAAACuSEt2AQAAAMDFhAYbAAAAcBENNgAAAOAiGmwAw2644QY9//zzw6dfeOEFXXXVVbJtO3lFAQCQYmiwAQy... | [
"linear",
"nonlinear"
] | null | 0 |
math | grade-1 | comparing-review | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAagAAABeCAYAAAB2DoBwAAAF7klEQVR4nO3dPXNU5xnH4XvFixhHilx4ksEunCaRq7ixI7ehcAeUKayvkXR2AV1o8iHEBwB3FEobMU6RzopdxAUxGbvALGYkguakONGEFfu+zznn1sl1NYBhnuf8luI/i2RpUFVV9fhFxNfPI4YnES+rAIDWXRxEbF6I+OUbET+/HDF4fFxVD592/VgA8D87P424+NXz+hdXL0ds/6ReLwBo2/Ak4vDHiG9fRPz9ecTa05f1bxgnALq0eaHeooiIZycRayev/AY... | 1 |
math | grade-5 | regular-and-irregular-polygons | false | true | Is this shape a regular polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD6CAYAAACbKDARAAAv+klEQVR4nO3deZwcdb3v/3dVdXUnM5lJJpOVbCQhEwJZBzxA8LpdN5AgXkERCCHAATwIHAVU8Iggm4goiF4VWQQOHBC8R5bL9rsuh4MBJZkkMyGQnSyQkNmSmWQyXdVd9fujuocJEDLJdHdVd7+e/8QH+pipmejDd337/f18DN/3fQEAAADICTPsBwAAAABKCQEbAAAAyCECNgAAAJBDBGwAAAAghwjYAAAAQA4RsAEAAIAcImADAAAAOUTABgAAAHKopAL27rT0+cW... | [
"no",
"yes"
] | null | 0 |
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