subject stringclasses 4
values | grade stringclasses 15
values | skill stringclasses 445
values | pic_choice bool 2
classes | pic_prob bool 2
classes | problem stringlengths 0 1.12k | problem_pic unknown | choices listlengths 2 4 ⌀ | choices_pic listlengths 2 4 ⌀ | answer_idx int64 0 3 |
|---|---|---|---|---|---|---|---|---|---|
math | grade-8 | identify-lines-of-best-fit | true | false | Which graph shows the line of best fit for the data? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAWYAAAFtCAYAAAA04cDVAABFSElEQVR4nO3deXxU9b3/8dfsk4VkAiEJWxLCEgi7sspSqFq5UhSwVrilSm25YrXaWr21XK91QWrrVq1W5datt7218ANUEGopLURCiYAQSdgikA1IQsg2yWT28/tjSCSEsM6cc5J8no+HD5yTmfl8Mznznu98zznfr0FRFKXcC1+6wBkAv4IQQggVmQ3QzQSDoiHZCoZyj6J8Vq91s4QQQgBMiANzoSt0o5cVMmNCqS2EEEI9zgAcaoSTXjjsAmO9P/QDCWUhhNB... | 3 |
math | grade-6 | which-model-represents-the-ratio | true | false | Which model represents the ratio 9:1? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAoEAAABVCAYAAAA2Yz6oAAAMQElEQVR4nO3dT2xU1xXH8d/YjOM/BBkSCgWZBW6LLRERm7hEmEUjIbpJokglEmHZbJttu03XXWaddSqFRUJ2aaVs7CgkYRwUJJsGsxiLFAQhCOyx8R9eFzdTBjNjz5/35757vh+pIi7Oe+/o3Nx33j3vTyGKoujWqnS9Ij3ckNYjAQAAIDA7CtLz3dJv+6V9PVLh1qMo+vpB1ocFAACAtJzYJe34oeJ++HWPdGTAVYgAAAAIy8MN6dqS9N9V6T8VqevBuvsLCkA... | 1 |
math | algebra-1 | write-compound-inequalities-from-graphs | false | true | What compound inequality describes this graph? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAM5klEQVR4nO3da1CUZR8G8GtRCNcDC8GbNAhYFCOJm4ICKqQ5FRM5nKzAnKSMLDs7NvqhDJVsGpUmOxEDuDZKhsPhtQCNWVlwEEkxEfKAHRAoIgzQcAd2kX0/8LIjsCu7sPE8D16/b3s/MHP9916GPzf3cz8yg8FgwDiSlZUFmUyG+Ph4oaOMCusQF9YhLqyDiIjEbKLQAWytsbFR6Ag2wTrEhXWIC+sgIiIxs7jB1uv1qKqqwv6j+7Fw5kKuuNAtqY6rsLdiLyrrKwE... | [
"$-8<x \\leq-6$",
"$-8<x<-6$",
"$x<-8$ or $x \\geq-6$",
"$x<-8$ or $x>-6$"
] | null | 3 |
science | grade-6 | match-chemical-formulas-to-ball-and-stick-models | false | true | Select the chemical formula for this molecule. | "iVBORw0KGgoAAAANSUhEUgAAAQ0AAABrCAYAAABtyNf7AAAmAElEQVR4nO19a3Acx53fr3tmsbsgngRAEhBICAQlUiIoWT7bEq34ZEtnO5Xcyc7FuaNsX7nqviTlVK4SJ5Vyqlz54i/+kIov9icnVcndpeqilM+KfJdLIisnWT6bMuk7K7JAiQ/xJYAEARAEFq9d7O5050O/Z2YBglxgd8n+VQ12dqanp6ex/Zvf/zE9hHPO4eHh4XGboI1ugIeHR2vBk4aHh8eW4EnDw8NjS/Ck4eHhsSV40vDw8NgSPGl4eHhsCZ40PDw8tgRPGh4... | [
"F2",
"H2F",
"H",
"HF"
] | null | 3 |
math | grade-3 | which-picture-shows-more | true | false | Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlYAAAEvCAYAAACHYI+LAAEAAElEQVR4nOz9O4wky7amiX3dMxhYkBjCDCBAN0plAkF4ah4UiIiRKlqLAypZI1VSOnm0PFptSrtaurUl1tZOajePdLMkVgokdmgdW5oIgEK4lg4+ACvNHSABM8yQ48bhNC6FZf6IrNr30X3QPacYC6iKyAgPf9hzrX/9a61/8fd///d/3/138H//b+G/+bfw3/89F7nIRS5ykYtc5CIX+SfIf/ov4D//T+B/8T+C/9l/Bv+i+//8/d//n//r/9i3dZGLXOQiF7n... | 1 |
math | algebra-2 | solve-a-triangle | false | true | In solving this triangle, which law must you use first? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEbCAYAAADgR/OCAAA6BElEQVR4nO3de3RU9b3+8ffMZGayJzcJpsjBFOIpwQocoKBSQDkooDEaod6IpSigKJcUqlTQ48/2nOVpwVJvkUsRRGkOoLalghjkIgeBgAoaCqxKrCciIMVANLc9t8zs3x9pqVaRW5I9M3lea7lWV2Ym84mm8OzvPPv7dViWZSEiIiIiIs3CafcAIiIiIiKJRAFbRERERKQZfSVgd+7cGYfDgcPhwOl0ct5553HjjTeyd+9eO+YTEREREYkrXwrYn3zyCR9//DELFy7... | [
"Law of Cosines",
"Law of Sines"
] | null | 1 |
math | grade-8 | identify-linear-and-nonlinear-functions-graphs-and-equations | false | true | The graph shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABih0lEQVR4nO3dfXSU5b3v/89kJs8JJCSYQDRBRKJggqKIICiKW93aaqHtxvbY1r1se/TUPq292l9X196uU7eL09/ptv3VrdbTc9xVT7tWd11Vq2KgKAg0KEiEQIICIoaEkIfJ4zzf83D//kgmEgFJ4L6YDLxfaymZydyffHPfM9d858o197hs27YFAAAAwBEZqS4AAAAAOJfQYAMAAAAOosEGAAAAHESDDWDEDTfcoJdffnnk8iuvvKLLL79ciUQidUUBAJBmaLABjKi... | [
"nonlinear",
"linear"
] | null | 0 |
math | kindergarten | compare-sides-and-corners | true | false | Which shape has more corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALgAAAC4CAYAAABQMybHAAAC1UlEQVR4nO3UO4pUURRA0VPVn8BvphgZqUNwSIIDEpySM/CTGNmm/QPbLp7BQzAUsSh6s1Z0LxcOJ9jczbIsy9nNzJfrmYvdzO0ycGcdb2YeHs28uDfz9HRmc/ZjWT6cH3ot+P9eP5o5/ny9Xp6dzry6v9YPd9XFbubj1cy3m5lP1zPb89v1QdwUPDxaW56ZudzNbHd/PEDB75Z/LjPbw64C+yVw0gROmsBJEzhpAidN4KQJnDSBkyZw0gROmsBJEzhpAidN4KQ... | 0 |
math | algebra-1 | domain-and-range-of-exponential-functions-graphs | false | true | What is the domain of this exponential function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABk3ElEQVR4nO39fWCU9Z3v/78mM5P7hIQEEogm3AkKEgRFBUGxWLXa2mJvtD3b1l33tPb07vT72+7p6Wl7dvvz67dnd9ue7dput7vd2u5vf6dbt2hXNFBUFBoUJEIgQSEGCAkhN5Pbub9m5rq+f2AiEZAErg+TIc/HH7UzXNcr71yfmWve88lnrvE4juMIAAAAgCuy0l0AAAAAcDmhwQYAAABcRIMNAAAAuIgGG8AYVVVV2rlz5+jto0ePasaMGWpra0tjVQAAZA4abAB... | [
"all real numbers",
"$\\{x \\mid x<0\\}$",
"$\\{x \\mid x \\geq 0\\}$",
"$\\{x \\mid x \\leq 0\\}$"
] | null | 0 |
science | grade-8 | identify-common-and-scientific-names | false | true | This organism is a water buffalo. It is also called Bubalus bubalis. Which is this organism's common name? | "iVBORw0KGgoAAAANSUhEUgAAAZAAAAEsCAYAAADtt+XCAAEAAElEQVR4nET92a9s+5bfCX3Gr5tNRKy19t6nuefcvM7KtNNpylTZlbIMdrlMVclCJZBQgQDxwAMSQgKpJOCBF/jHkIAHQFXYBrvS6Sadznuzuf1pdrNWRMw5f90YPPxWuvbTlvaKvSJmzPkbY3y7If/7//Nft3b7jPJywYlxeUhMU6V3475Vnj9tvLxkAM5vPKenwrsvPA8PM5ij64GERvBCko6LAdULzXZaK0R3oTboVUnOcN4IUYnxPegveC53jvtn7NsXlP2JaAt... | [
"water buffalo",
"Bubalus bubalis"
] | null | 0 |
math | pre-k | tally-marks-up-to-10 | false | true | Count the tally marks. What number is shown? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAABBCAYAAAAngwHRAAAC8UlEQVR4nO2dTW7TUBDHJ8RVW0oSpZKRCIRKSAhBWLDogl4gnIBeoL0A4gRcAE7ABegFKBdIFyzYJFIlEItGLFIplm0FEtVW2PAR8xLbE03w6OX/W0bOvCf/4nkftiel6XQ6JaCGa0V3ACRJFeJ1AvLOArHGpOPZiPPvB5Ef0/mrrzQ4HVIUxH8+bzx36d6LJm03N1kNRH5MX95c0LeTgUg82ynNjiGD90PqvvycOHGzONUy7b9rUaW1kyt42B3Rx8OuWLx1IJGyNmr... | [
"7",
"4",
"2",
"6"
] | null | 2 |
math | pre-k | count-sides-and-corners | true | false | Which shape has 3 corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAGXElEQVR4nO3dv28cRRjG8WfWd/5FTBKEIAhXCUkEVFSp8pfQ87cgRXIkgkBCSIgGUQANFCDo3MWdK4cg01jcGsuJ7LPPOd/uDsVqo+NytmZ3Z96d2X0+FcG+uy2+uvW9tzOrtNY6Pgf+GgHDFEg0iGrrKWBtAbi9Cry9CKh4rPXj46YPi9rs3utA7+ko/8c7i8Dd1/IKieoapsCTU2BwDvw5AqLjJP8BIyOb1hbypgDgJAWidOoHRDYVTU00EDV7KNQVDI1EMDQ... | 0 |
math | grade-8 | identify-linear-and-nonlinear-functions-tables | false | true | The table shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAFQAAABeCAYAAAC98DOnAAAJCElEQVR4nO2cfSyV7x/H3+cIayXVEJk8HM+MOfOQrUNh1pKtxpeZmlgsMSUxk0iZedqQlsyOCGXfUpq+xWkrSmZrLbPIVguT2Q6zhkI41++Pds7vd756um/XEftdr+38ca5zn8/nc1677uvczv1x4e9/2sh6YL3UKQSDKkwoZZhQyjChlGFCKcOEUoYJpcyqCJ2bm4NEIsHu3btXIx0n5ubmUFRUBIlEAnt7e/j5+eHatWtYWlriFW8D5fq+S2lpKcbGxmBgYLAa6Ti... | [
"linear",
"nonlinear"
] | null | 1 |
math | grade-5 | points-lines-line-segments-rays-and-angles | false | true | What is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABWCAYAAAD19uGEAAALiUlEQVR4nO3dXXBU9R3G8ecsARKQTWMIyb4oxRckq0QBcU+kIIxuatnFl4rjtDO9gHF60wu8cMaLjp1OcmE73ITpTeuMMNMbbA2tHUJsk3HUZjRnUStqPTCtitplE0DEnIjKS3Z7EVhZs1kWye7J7n4/MzvMnP9Z+MEMM8/885z/MdLpdFoAAAAApoXH7QEAAACASkLABgAAAKYRARsAAACYRgRsAAAAYBoRsAEAAIBpRMAGAAAAplGN2wMA08W2bXV1dWVd83q96uj... | [
"a line",
"a point",
"a line segment",
"a ray"
] | null | 3 |
math | grade-7 | rational-numbers-find-the-sign | false | true | The number line shows an unknown number, s. Is s positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAlwAAAApCAYAAADgbPfrAAAGT0lEQVR4nO3dXUxU+R3G8efAzoAMLFCCylpfrnRDzBIRRiC6mnhhE2sJxqT1hpp1Y1Zj1qvVJrv1ojUktonZNNrVjVdcUE3TMVZjY9NuM9pUZkYkkxBxzRpRsrtVQqyVl3kRTi8GBikizK5n/jPD93MD5z8n5CFz88zv/Occy7ZtWwCQRTo6OmRZlnbv3m06CtKE9xzZ7g3TAQAgVf39/aYjIM14z5Ht5l244vG4urq6FAgEtHjxYj5lAEC6/Odr6dpp6d9fSo++lJa... | [
"negative",
"positive"
] | null | 0 |
math | algebra-1 | perimeter-area-and-volume-changes-in-scale | false | true | Look at this rectangular prism: If all three dimensions are doubled, then which of the following statements about its surface area will be true? | "iVBORw0KGgoAAAANSUhEUgAAABQAAAAOCAYAAAAvxDzwAAABEElEQVR4nNWTMYqDUBCGf1eFqIWdgq2ilp5A+1cERDyAlVUO4TGsrEO6FKkt7OwEES+gV7DQzHYu7mYT2LXJB1M8Br7/McNwRETYkY89ZavQsiwcDoe1RFHE6XT6m5Ee4Ps+lWX5qPUS4XvA5XKBpmkIguBHeBiG8DwPdV2jbVskSQJJknC73TCOI87n8/aHy7KQbdvUdd3D9CiKiDFG9/ud+r4nQRCoKAoiIsqyjNI0pc1SrtcrHMeB67q/jogxBo7jYJom5nkGYww... | [
"The new surface area will be 2 times the old surface area.",
"The new surface area will be 4 times the old surface area.",
"The new surface area will be\n1\n4\nof the old surface area.",
"The new surface area will be 9 times the old surface area."
] | 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? | "iVBORw0KGgoAAAANSUhEUgAAALEAAAB2CAYAAACHxHLJAAAcKElEQVR4nO2de3Acxb3vPz27eq0sS5a12NaC1xYGY454WoYQQC4IYCVA2RbnGkyOgeSkrjlUzk2CbxUm4EtuFX5VqnicVJGkUokLOJRJOSCUkyrb3JCAwQQs6xhil42N8UuWH5HQw5JW2t2Z7vvHPHbWsqzX7kra3W9Bzc5MT3dr/O3f/PrXv1//hFJKkUUWExjaWHcgiyxGiyyJs5jwyJI4iwkP71h3IIvU4d133+X999/nxIkTnDx5kubmZpqbm8nLyyMQCBAIBLj... | [
"certain",
"unlikely",
"probable",
"impossible"
] | null | 2 |
math | grade-1 | flip-turn-and-slide | false | true | What has been done to this letter? | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAIQElEQVR4nO3cX0xb5xkG8OfYJtg0wYYqJIKIjJDJIhVhjQZo3QqOwtZKSyJRaZsSbQ1o0naRbpfTWk2rWaRkqybtotIuOm3QTVqlTWtRpk5dtSZDa7tCm8lJmNpmLC2NDIX8A5JgCMHfLghRyHLsD/vY5+O8z09CCPz69Yc5j+zzx6/V3t6uYrEYnDAwMAClFNgv934nT550pJfbYrGY0c+ztH6BWCyGeDzuSMOenh4opdgvj35ewe3KrH4+RzoRkdEYdCIBGHQiARh... | [
"turn",
"flip",
"slide"
] | null | 2 |
math | kindergarten | fewer-more-and-same | false | true | Are there more sleeping bags than pillows? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACgCAYAAAA2PRuAAAAa50lEQVR4nO3dWWwk+WHf8V9Vd/V9sXmTM0POfexoD2slr2BZK9kxnESWFMd5CIQEEJAAQQLBgGIYARIEzlscBBJswG8JEidBhDhxEtuQpcAJZCmO1jp2Ja202hnOwRmSw5vsZt/VdeahZzgzGnKWR3F3lv39vMxudXdV/ar74VfFf/3LCMMwFAAAAIBImO/1DgAAAADHCQUbAAAAiBAFGwAAAIgQBRsAAACIEAUbAAAAiBAFGwAAAIgQBRsAAACIEAUbAAAAiBAFGwA... | [
"yes",
"no"
] | null | 1 |
math | grade-1 | addition-sentences-up-to-10-which-model-matches | true | false | Which shows 6+1=7? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAXYAAABKCAYAAACvkX8HAAAM+0lEQVR4nO2dS4wcx32Hv+rHvIej5fIlcWlySYkxHdKEiTi0DwHkgNLNF8cCfLCRS3JRAgO6KDcfDQE+OUECxAZ88cHwwRcbCWBDhhDf7CQ2JFlSHNJayhQZLpez0u7Oo3v6UTk0Z19c7k7Pds/0lP8fsNhH91TVt+j9bU11VbXSWuv7A7jVg40IQo0gCIIwQzgKmjY8V4OTJVD3fa1/tT7tZgmCIAhZcP0IODd7yTdPl+BP6knqC4IgCLPDRgS/68L/DeB/e2C... | 1 |
math | grade-8 | identify-complementary-supplementary-vertical-adjacent-and-congruent-angles | false | true | Which angle is supplementary to \angle{6}? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADvCAYAAADIM6M5AAA1dUlEQVR4nO3de1TU953/8ScIv0ISyhDak+1ow0WDaaZRdxeMOUfLUG+hsgg1NkUJgWRjIWksmqrDafaIp10ZTRR0Y8C0jahE6kEDJrgkGst4cDdGPFsvJUeJ4ZLIbN0NYQyxzIYBfn+4sNF4Qy5fLq/HOTlJZr7z/b7mvxfv85nPx6urq6sLkSHA5XJhMpmMjiEiIiLSJ95GBxABKCsrIzU11egYIiIiIn2mgi2Ge+mll0hMTNT0WkREREYEFWwxVGFhIStWrADA7XY... | [
"\\angle{3}",
"\\angle{2}",
"\\angle{4}",
"\\angle{1}"
] | null | 0 |
math | grade-3 | scalene-isosceles-and-equilateral-triangles | false | true | What kind of triangle is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADOCAYAAAAEw3WqAAAmQElEQVR4nO3da1zUdd7/8TfDQU6G5AEFFGULDxVhQxIbWVhkqZF5CmZU2m21w25ltLsd1g5W65bb8SpXr+hq/1l4qOTaWtPLTWRTdl2MQUVDY42UwqILE7pwwEGG/40WrBUVYWZ+A7ye3VmHYX5vHnvn/fg+PvP9+LS0tLQIAAAAgEuYjA4AAAAA9CReXbDj4uI0ceJE1dTUGB0FAAAA6BAfbx0RsdlsSkxMlCQNHz5cGzZs0KhRowxOBQAAAJye155g79q1q+1/Hzh... | [
"isosceles but not equilateral",
"scalene",
"equilateral"
] | null | 2 |
math | grade-5 | three-dimensional-figures-viewed-from-different-perspectives | true | true | If you look at this object from the front, what will you see? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFWCAYAAABTgeowAABYW0lEQVR4nO3de1yUddo/8M8wIMg5FRRRDpWthD6CEkqWMa5aK5WYilmhuGQbeQK1Tc1kyHR1VwVP6a4RoOaupEFu4D7qCrl5wgPTI4g/bWMUEYU0znKamd8f44wgghxmuGeGz/ufzWG453JnX/u67m/XfX1EKpVKBSIiIiIi0gkzoQsgIiIiIjIlbLCJiIiIiHSIDTYRERERkQ6xwSYiIiIi0iE22CSo0tJSxMTEQCQSYfbs2SgtLRW6JCIiIqJOEXGLCAklKSkJUqk... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA8gAAAFWCAYAAAC1obQYAABjXUlEQVR4nO3dfVzV9f3/8cfhQozrMlA0uajsK6kT1CyzFPqWNW2lqbguTBzVxrzCcsvMBDJNNw1MnW7FBHVtkqa1tH3LBbl5RV7Q1wv8ad84iopCGteJeDi/P5Az8RLhwIeDz/vttlsJh/d52clue37er/f7ZbJarVZERERERMQuTCaT0SWISAM5GV2AiIiIiIiISEuggCwiIiIiIiKCArKIiIiIiIgIoIAsIiIiIiIiAiggi8GKiopITEzEZDIxduxYioqKjC5... | 1 |
math | grade-7 | similar-and-congruent-figures | false | true | Are these shapes congruent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEZCAYAAACtj1KJAABuZ0lEQVR4nO3dd1RU19fG8e/QpIgVUVFRBFEUsRF7bNHE2LGgWGLv2NFYYkFJrLGixoK9izXEaOwaC1ZCs4CYqD9ULEFEqcO8f6iT8Bo7cJlhf9Zircy9d+Y+NyvB7ZlzzlZpNBoNQgghhBBCiAxhoHQAIYQQQggh9IkU2EIIIYQQQmQgKbCFEEIIIYTIQFJgCyGE4P79+/Ts2ZMSJUpQqFAhypcvz5o1a5SOJYQQOslI6QBCCCGU17lzZ1xdXYmIiMDU1JRLly7RpEk... | [
"no",
"yes"
] | null | 1 |
math | grade-3 | am-or-pm | false | true | Nancy hears a rooster crowing at sunrise. The clock beside the bed shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABYFklEQVR4nO3deViUVfsH8C8qqwxCuSEoi5kyluIGqImmom+CWuKumUtulaG51Vvam9ri0k/Ret13c8cdTShTSgU0c8khK1l0EH1RwUFhZhT4/UGMILM8sw/w/VxXV8zM/ZznjuDinjP3OceuuLi4GEREREREZBI1rJ0AEREREVFVwgKbiIiIiMiEWGATEREREZkQC2wiIiIiIhNigU1EREREZEK1rJ0AWZ9cLkdBQQEK8vNRUCBHQUE+CgoKULNWLbg4O8PZ2RnOLi5... | [
"6:10 A.M.",
"6:10 P.M."
] | 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 | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAAA2CAYAAAAlHWAMAAAEHklEQVR4nO3dPUgjaRjA8f9Es8Le7h1i8Dg7xTvBDwRBtwliJ4inCAkIdn4hfjQKlnZ2goUWWokgKhg1eo2dgqByYGEjRA9t1OTQSGJc8Uzie0U22ZWNrl+vMbvPDwZNZsZ5hH8mgxjGUEopzxX8cwGBMIQUQjxYqgHvU+D3t/DrGzA8/yn191mixxLfkw8/Q+ruReTBb28g76dIdUI8VCAMro/gvoKdCzCdhSIrJCrxFO9TIg0BnIfBFP5ihRBPEW0oqMCU2FH... | 0 |
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 | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAV+UlEQVR4nO3deXAcZ53G8e/bPSPN6LDkSLYlJz4TJ06cOwEHEgoHkl3CEq4iBWRZtgpSwAKBpSgCxV3AUhCOgoUsCwthlxzLsVWQi5BAIAk5SBzHsePE9+3YliVZsjSjObvf/aNHlizL8jga9fTIz+cfl3va4555e55+39/b74yx1tr9edgyBIMeFC0iIhURM9DswpIGmFMHZn/O2qcHqn1YIjLdLZ8Bsc1DwV866+CsxiCNREQqYdCDjWnYl4dNQ+AMFIMHFDY... | 1 |
math | pre-k | circles-squares-and-triangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACQCAYAAADwZHJxAAAG+klEQVR4nO2dTU9UZxiGn+HDhdU2aZo2/QGtSdNt46b/pD+lvwAlsBA3oCtQg2KiC8FEozFqSGQlURwKM4yGcKiBgTgzZDw9nNPFqFFkYM7M+/U8z32tmO835GI48879nLuQZVm2GROt7hHV9omSjADomYEC0el+ol9OEv10gqiw+T7Lnr3zvSwgmbPfEg2s7LUu/HyC6Mw3LQsB6JXaPtFygyiKif7ZI+p7l7RugGTAJKf7W04REdX3ifr2P7sBAJN8dOq/jKj... | 0 |
math | grade-4 | interpret-stem-and-leaf-plots | false | true | This morning, Mr. Navarro released the scores from last week's spelling test. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACOCAYAAAALm3/GAAAurElEQVR4nO3de1SU1foH8O/AcBvAQUAQEAQURVRKRRQvSaKBoYKgRaVhgmSKx7sSXsAyLqWpQXkUr+W1oybejmLlvcx7Xo8RhmYqDig6CooM+/dHyzlNzOBQL4q/8/2sxVr0zH7eZ++Z/nh43e8emRBCgIiIiIiIJGHytCdARERERPT/CRtsIiIiIiIJscEmIiIiIpKQ0Q32pUuXEBcXh6ZNm8Lc3BxWVlbw9fVFUlIS7t+/XyeT8/T0hEwmw6ZNmwAAQ4cOhUwmw9i... | [
"56 points",
"52 points",
"53 points",
"51 points"
] | null | 2 |
math | grade-2 | place-value-up-to-thousands | false | true | What is the value of the underlined digit? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAAiCAYAAABlRa5TAAAGeklEQVR4nO3dT0iU3x7H8c9Mgtqk+ScrqVxkCIppiywJ20hmSoTSXxCLyoUIRYtKKtq0y8QWlQVGGISFYdAfMKtFmqH9hQxtkCEhKKtpUrMGRWx+C++c63PHrva707V+vF+rc77POc88Z/fh4cxzbD6fzycAAAAAQWGf7gcAAAAA/kkI2AAAAEAQEbABAACAICJgAwAAAEFEwAYAAACCiIANAAAABBEBGwAAAAgiAjYAAAAQRAEBu6OjQ7t27VJCQoLCwsK0cOFCFRQ... | [
"60",
"600",
"6"
] | null | 1 |
math | grade-2 | flip-turn-and-slide | false | true | What has been done to this letter? | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAEm0lEQVR4nO3dQWsUdxzG8SdxQ0qEdlMrEmiqKUJLL7F6lp1A34KXHGT3nUxo6cn3sHtom0sPgUJvTUiOLZUBRQ+KSIMgWOLW1hqN5u+haCw7szO7M5v5z/y+H/CSnXmcTOYxs3H+v0y1Wi0XBIGKsL29LeecyBs/b2trq5CssgVB4PV5tpbXCIJAYRgWEri2tibnHHk58uqC68qvvOlCkgB4jaIDBlB0wACKDhhA0QEDKDpgAEUHDGiUfQBA2Z79/VIP7jxJ3W52rqH... | [
"turn",
"slide",
"flip"
] | null | 1 |
math | grade-6 | which-model-represents-the-ratio | true | false | Which model represents the ratio of 2 hexagons to 3 stars? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAYkAAABVCAYAAAC8VhhdAAALJUlEQVR4nO3dQUxVVxoH8P8D3xPhqTzUkbF5uMBRmDQlYtEmD5PaGDuTjqbtJIaZZd12tu1qkpnMcpZddz2mi7bBNDOZmdRFIWlphdg0EVtYFNIWIwWEJyKIt4vDVcB337v3vnvOuZzv/9soQe45Xz453znn3nduxvM8b2YVmFgGltaBRx6IiEioXRlgbyPwm2bgcA7IzDz0vJFF290iIqK0ObMP2PXdsvri1zngRIuqIEREJNPSOnD7PvDTKvDtMtCw+Eh9gwW... | 1 |
math | grade-5 | regular-and-irregular-polygons | false | true | Is this shape a regular polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACvCAYAAADHa6lVAAAcbElEQVR4nO3deXTX9Z3v8dd3DWHfUURkU8ASIBiCUgGtC673jGE8l2qdWjujc3q1ta1LO63r1I51GavetqPVSse5omPFcw9qq9YNvCIhJUhEggYU2RQMEMn2+26f+8ePKCIqyy/5bc/HPzkajR9jPOf5/eb9/n4tY4wRAAAAgIyws30AAAAAoJAQ2AAAAEAGEdgAAABABhHYAAAAQAYR2AAAAEAGEdgAAABABhHYAAAAQAYR2AAAAEAGEdhF5FsrQ01bktIHQbZPAgA... | [
"no",
"yes"
] | null | 0 |
math | pre-k | fewer-and-more-compare-by-counting | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAMZElEQVR4nO3dT0xU5x7G8R86bYDLcCO90RAkuuDiuMCIf0rMuKjBrZO7o4kxadk5NnZTuF3BoiVpXFlSvbuycNWgSbWrJlZWdVGxuitQFyYULV7BhGln+mfM3MXcQ2Ec5hzgzPm973m/n406wOGNbx7Ow5nzvqehVCqVfv5D5FFeJPdSpFgSAHWSaBBJ7hT5Z7PIntdFGn7+vVT6bkV7WIB7+lpFEj/my/9of13kwN/K6QRQH7mXIrO/ijz9Q2QuL7JjpVj+AOE... | 1 |
science | grade-5 | identify-mammals-birds-fish-reptiles-and-amphibians | true | false | Select the amphibian. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAADIkklEQVR4nOz9V7Bs2Xnnif3W2jb98fb6e8s7oKpQKBAgQBI0YNM020yL090zmlbPaPQwCilCepCJ0MtMSBHSaEbTwWmyyR6yaRpNsg1tN0iAJEASroACyheqrr/3eJs+t19LD2vvzDx5zrmmAEbMRHDdyHsyt117729/6//9P7PEN9taP1aBmsVft79u/7Ns3Qze78NWDNM2fGLKLJd/Lbh/3f7n3moWPFYx33vZaLn8a8H96/a/hFbIaaJHy+yTNvy1P34FACH... | 3 |
math | pre-k | represent-numbers-with-pictures-up-to-5 | true | false | Which shows 1? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAQtklEQVR4nO3dfXAU52HH8e/enU7vh15OEjIvAoMQBhHzYt5shxcPYJPE8Uvaxk7cOG2T6dTNdNxM00zwTNJp0qRjd8ZuUmfaJvFLmyZ+qVNik4DfIBACtmwDNoKAeBMScJKQkHQn3fvu9o8DAQGMDbp7lOj3YRhAu7p9Ds13dm/3uT3LdV23IwkHoxCxIe0iIlnis6DUC/VFUOMHqyPhuk1h08MSGX0WBsB3IJr5R60fGoozdYpIdkRs2D8IoSS0RMETTmcWKD6... | 0 |
science | grade-5 | predict-temperature-changes | true | true | Two identical blocks are heated to different temperatures. The blocks are placed so that they touch, and heat begins to flow between the blocks. The pair of blocks is insulated, so no energy escapes. Later, the temperature of each block is measured again. Which pair of temperatures is possible? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAACgCAYAAADq8hJGAAAbVUlEQVR4nO3dd2BUVdrH8e+dmUx6SCUhpAEphNAhgNJERFHBiisK+u7aFivrqiu6iL6WXcsqdnbt+666CJZFEUFENnQILTGBUEIgCek9pMxkZu77x4QLMSEESDKT5Pn8AeHOmTtncobfnHnumXsVVVVVhBAC0Dm6A0II5yGBIITQSCAIITQSCEIIjQSCEEIjgSCE0EggCCE0EghCCI0EghBCI4EghNBIIAghNBIIQgiNBIIQQiOBIITQGBzdgfZQY6rhldWL+e+BDY7... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAiAAAAC4CAYAAADaI1cbAAAmAklEQVR4nO3deWBU5bnH8e+ZmUxWQjZIWEIA2VFQEcQFFKmKC9Z9qdrb1qVaa9W21qWKXqvWrS5t1Vuty73VVnGr4gKiRZQdQRLDvidAErInZJvMzLl/TDJsIQRIzjmZ/D5/GDxz5swzeV8enjnnOe8YgImICGCaJoU+2FAL1QHwKzuISDvxGNDNDYPjIN0LBipARKRJYYPJkiq7oxCRSHdiInjsDkJEnGN9behnLy8MjQ99WhERaQ/VAVhbAwU+WFcLLrsDEhH... | 1 |
math | grade-6 | which-is-the-better-coupon | true | false | Danielle would like to buy an encyclopedia with an original price of $18. Which coupon should she use? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAATwAAAC4CAYAAAB+U1B8AAA/ZElEQVR4nO2dd3xb5fX/P1d7WpYtee+RxHYSO5vshCSEvUrZo2EGSvulP/hC+/223w46oS2UtkApUPYKeySskBCyd5zhOE7iPSVPDWvf3x+ybMm69+pq2XL8vHnxin3Hcx/b0kfnOec851A0TdMdDuC0FTC5ARcNAoFAOCcQUYBaCJQqgHQJQHXYaXrvwHhPi0AgEOLLgiRAVGf1fpMpAaYqvWpIIBAI5wImN1BrAdodwCkrIBhweU8QsSMQCOcaaqFX2wDA7AY... | 1 |
math | grade-3 | is-it-a-polygon | false | true | Is this a polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC6CAYAAACUcDp9AAAWOklEQVR4nO3dP0xbebrG8WdXK6cABwpH+cNIIYhIUNmkYJsQPJo0sEXI7iY71Y3JSLfaGUi3kylCimTLheS2O5hb5ZLVBIqBW2Q0BtLcFHCoHMkIPNI6ZpUjrWOTwjS5hTknJvyJDcc+x/b3I40SjAOvool4/Pr9vb9fvX///r0AAAAAOOLXbhcAAAAA1BMCNgAAAOAgAjYAAADgIAI2AAAA4CACNgAAAOAgAjYAAADgIAI2AAAA4CACNgAAAOCg37hdALCfTD6nVXN... | [
"yes",
"no"
] | null | 1 |
math | grade-5 | compare-decimals-using-grids | false | true | Which decimal is less than the one shown in this diagram? | "iVBORw0KGgoAAAANSUhEUgAAAJwAAACcCAYAAACKuMJNAAAB8klEQVR4nO3WwWnDQBBA0VFwLa4ohQRMqgiGFJKK3Mz6pGByM4Hv4Lx3k2DEHv4O2tZaayDy8ugD8L8cbh+28/FR5+DJrdNlZm42nNgoHH6+eHt9v/sjn18fv57db8A99kti9u/P7vzDkRIcKcGREhwpwZESHCnBkRIcKcGREhwpwZESHCnBkRIcKcGREhwpwZESHCnBkRIcKcGREhwpwZESHCnBkRIcKcGREhwpwZESHCnBkRIcKcGREhwpwZESHCnBkRIcKcGREhw... | [
"0.18",
"0.21",
"0.4",
"0.5"
] | null | 0 |
math | grade-2 | which-picture-shows-more-up-to-5-dollars | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlYAAACYCAYAAAAm2KfyAAB97ElEQVR4nOz9d5ydZ3ng/3+eenqd3qtGmlHvzZJc5IZtbExxoTiEACFLAmGzm8aGhLApu8k3u/vb/W4gFJuOjQFXXGTLkmz1rhlJ03s7U05vT/3+ccYDJL/dtUEG4n3er5dfY3tG43Pfc8bnOtd93dcl2LZtz2gwkIO0CYaNw+FwOBwOh+MNkAUISLDCC1UqCDNF2z6Z+lU/LIfD4XA4HI5/3bYHQe7Plf6hRoWVvlLU5XA4HA6Hw+H4P0ub0JuFaQ36ciCmjNI... | 0 |
math | algebra-1 | surface-area-and-volume-changes-in-scale | false | true | Look at this cylinder: If the radius and height are tripled, then which of the following statements about its surface area will be true? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAACqCAYAAADoZADPAAAUU0lEQVR4nO3dbVBUV57H8W93E5+g7RaNjIjQSiKiARpDcGcisbFMSi1H8MXU1JSThJhUxdVkh6mZTLZSs5nZqUxS2RfjQ00MW+smWCOVdYwbJJZJlTsBQ3aSUYgtagbcqECw1aCkoSN58t6zLy59bQSuTw3Nw/9TBd333tPdp5vz63PuIzallEII0S97rCsgxHAmARHCggRECAsSECEsSECEsCABEcKCBEQICxIQISxIQISwIAERwoIERAgLEhAhLEhAhLAgARHCggR... | [
"The new surface area will be 4 times the old surface area.",
"The new surface area will be 16 times the old surface area.",
"The new surface area will be 3 times the old surface area.",
"The new surface area will be 9 times the old surface area."
] | null | 3 |
science | grade-8 | compare-thermal-energy-transfers | false | true | Jennifer was delivering two identical pizzas to a customer. While driving to the customer's house, Jennifer put one of the pizza boxes on top of the other one. This table shows how the temperature of each pizza changed over 15minutes. During this time, thermal energy was transferred from ____ to ____. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAABfCAYAAACdpLOcAAAjHElEQVR4nO3deVxTV/o/8E/CEgKERUDqUgVRFimiVVEUl4rftjK2jhS3Sl1arVV+VXGrltYqWG0dOuMyjlORujHjXu1oHS2VqiBWraigtrhhQVRkkSUQCCT5/cGYGsOSQFiMn/frxR/cc5fnnJtz75N7z70RfLEsWwUiIzB1piO2bMxr6TCInmnsR0S6+eiz9i0dAlGthC0dABERERERGQ4TfCIiIiIiI8IEn4iIiIjIiDDBJyIiIiIyIkzwiYiIiIiMCBN8IiIiIiI... | [
"the surroundings . . . each pizza",
"each pizza . . . the surroundings"
] | null | 1 |
math | grade-1 | simple-fractions-what-fraction-does-the-shape-show | false | true | What fraction of the shape is purple? | "iVBORw0KGgoAAAANSUhEUgAAAVgAAABkCAYAAADDoygiAAAO8klEQVR4nO3daXAU550G8OftOXRLSELIAoUrQsIckoAFwTqJIXZIsOPg2BtwMMZcXmedYGxw8BZOSLLOFjE58JFyKmviJOVyueJKVap2l/UGx8aENegASQghTgFCQhISus8ZzfS7H3oujQCJ6e7RyDy/L6Nh+vijD4/e+ffbbwsppQQRERlOGe0CiIg+qxiwREQmYcASEZmEAUtEZBIGLBGRSRiwREQmYcASEZmEAUtEZBIGLBGRSRiwREQmYcASEZmEAUtEZBIGLBG... | [
"1/2",
"1/3",
"1/4",
"1/5"
] | null | 2 |
math | grade-3 | compare-fractions-using-number-lines | false | true | Which fraction is greater? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAB8CAYAAABTwcfUAAAZRElEQVR4nO3df1BU9d4H8Pey7C6t8ht5EAW51MPtzs0MVMAf15te04wmyjRjUtQmTZtuxaDpbUafmtFx9FYz93ZtzKmRRtPSHcJxcJDAQDFlZclMh3xKAe1G/DKWZWFhdznPH173CdHEOrtfzjnv1wzTsO4f78/37Mn3Hs8PnSRJElRk79690Ol0yMnJER1F8Ww2G6qqqrBkyRJERUWJjqNo7e3t2LNnD6ZPn46JEyeKjqN43M/lw/1cPtzP5cX9nJQsSHQAuV25cgW... | [
"1/8",
"1/6"
] | null | 1 |
math | grade-5 | is-it-a-polygon | false | true | Is this a polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADhCAYAAADyOcJJAAAbT0lEQVR4nO3dP0zbeZrH8c+uTlAQg0/yihBGwiCQoLKhYJpAjCYNpAhEm1yqw07aCyHdTVLEKcJMFyDpTgnOVXNkbnCKIQ3ROjjNUcCPikggj1daD6zGhRezBTS5wvEvkH9j7J/5/Wy/X9IqG4YdHs1kpQ8Pz/d5/vD27du3AgAAAGCJP9pdAAAAAFBNCNgAAACAhQjYAAAAgIUI2AAAAICFCNgAAACAhQjYAAAAgIUI2AAAAICFCNgAAACAhf7F7gJ+T2Y/q/X0liT... | [
"no",
"yes"
] | null | 0 |
math | grade-1 | square-corners | true | false | Which shape has 1 square corner? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAFZklEQVR4nO3c328UVRiH8e+Z7rZlu7MNaBADRkn4Yds1wSsS/VP4W73VhFu2INCIBonVoMSd7pbddud4MVu7VVsETt+ZM/N8Ei5IQxnCk7Nv5rzgvPd+dyrtjKVsJh16Ae+t5aR0SbrZkT5altzuxPv7w7IfC3V2tye1no6Ln3y8LN1eKyoE3lc2kx6PpF+m0pOxlAwPiy8QGUJKl4qmJGlvJiWzhS8AIR01deClpNxHQVMQGkwQGkwQGkwQGkwQGkwQGky0yn4... | 1 |
science | grade-4 | compare-properties-of-objects | false | true | Which property do these three objects have in common? Select the best answer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADQCAYAAAByQhWRAADHTUlEQVR4nOy9d5wdV333/z5nZm7dvmqrXiw3WZZ7wza40UwzJYaEEggkgQTIL/mRQMKT5CEJv/AEUp4ngSQkeSghMZjmblzBuFdZsi2r97bavnvrzJzz++PMzJ272nJ3Ja1kad56jW6bcubu3Hs/53s+5/sVWmsNUC6X2b9/P0NDQ3ieR0LC8ca2bVpaWujq6iKTyRzTYyXXf8KJRnL9J5zKzOT1n5BwMiK01rpUKrF161aWLFlCJpPBcZzj3a6EBFzXpVwus2PHDla... | [
"sweet",
"stretchy",
"flexible"
] | null | 0 |
math | algebra-2 | identify-the-direction-a-parabola-opens | false | true | The graph shows a parabola. In which direction does it open? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAHyCAYAAADRDLnIAABppUlEQVR4nO3dfVyU950v/M8wDzzDICAgCmqMRgygGE00Ekm1idU2G21T07PdNtnu3rs9Tdvs3bt3uz09PW2PJ3fP6UnbdNNutmezMd30td1km9hGg4mJIAZiiCgoRCOiIA/yMDDPT9c8XPcf5EJR0EF+P2YYPu/XK69XGK75zNe5Zq75Xj9+87t0qqqqICIiIiIiIRKiXQARERERUTxhg01EREREJBAbbCIiIiIigdhgE80R9913H/bt2zf285/+9CesXLkS4XA4ekU... | [
"up",
"down",
"left",
"right"
] | null | 1 |
math | precalculus | determine-continuity-using-graphs | false | true | Is f(x) continuous at x= – 2? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB1o0lEQVR4nO3de1xU950//tfcBwYQBAXEABpv0QCKMV7xsqZJjGkaTFJNH9vW1O1u8m1u/e13v5u0br+73eim391uE5tk8+13k5judjfVbWI2KloTbxSrRBQUjIpEUMThPjDXc+bMOb8/cAh4BT0fZwZez8cjjzwYOG/ensOcec1nPud8DJqmaSAiIiIiIl0YI90AEREREdFQwoBNRERERKQjBmwiIiIiIh0xYBNRP7t370Zubi6WL18OAPj617+Ojz766Ko/GwwGMWf... | [
"yes",
"no"
] | null | 0 |
math | pre-k | represent-numbers-with-shapes-up-to-3 | true | false | Which group has 3 hearts? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAF7klEQVR4nO3cP3BUVRiG8XcTIBlMJIVjIBbS6FJJo6GLQoGVpLOBoWSgscNKKdTKNHbQYBUarRIbTREHumRoYuWKDY0so4WwkAEkcy3OZmBIQvbPuXvPe3h+MwzJ7OzNdzgPd3b3brZWFEXRfCL9uS61NqSnhYDk7KlJ48PSO/ulyX1Srfm4KFbvVz0W0Lljr0t7bq2Hbw7tk+qvhaqB1LQ2pMZD6c4T6Y91aej+03AD0SJl48OhUUl6sCENbTx3A5CyzUb/K6S... | 1 |
math | grade-3 | compare-area-and-perimeter-of-two-figures | true | false | Which figure has a greater perimeter? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKQAAACbCAYAAADsmTA5AAAU8ElEQVR4nO2de1hVZaKHXy4blBERCQkTbwd1vKSUp8NMGjmoox1GLckRHM0ZtAQLAxEPgdcMEDUvaXghkWzMS5GXwWYcPVlQjsRBxUZkYIdIEJIBKrgRN5t9/ti5k8HSLZdvLfze5/FRWGvBb8HLYvut9fs+K6PRaLx0E7Q6qDZAvRGJpM2wtQJHG+jnAG52YHWpzmj88proWBIJeHcG2wKd6Q13OxjwC5OtEklbUW2Af12HspuQrwPra/WmDVJGiQgcbUzuAdQ... | 0 |
math | kindergarten | ordinal-numbers-up-to-tenth | false | true | The first picture is a moon. Which picture is second? first | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAkiklEQVR4nO3deVhTd74/8HdCEkggBmQVEEFFVHBc666l2kqtV6XWhdG2tmqnOr3PjNud5c48Lp3Ob9oZq72/26l2ql2vvSqtbcFqsa3aSutSF1QUcakIiAgigRASEpLcP46JAQLZzsk5JJ/X8/SphLN8+Tyf53O++Z5zvl+RxWKxgBBCCCGEEMIKMd8NIIQQQgghxJ9QB5sQQgghhBAWcdbBVhstSCloxPBDGqiN9BQKIYQQQggJDB51sD+/bcTGy/ouO85H7rairNm... | [
"moon",
"rocket",
"star"
] | null | 1 |
math | pre-k | represent-numbers-with-pictures-up-to-3 | true | false | Which shows 1? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAALj0lEQVR4nO3dXWxb9RnH8d9587vzniZtuvEyKFCJFW3aAGljF5uENmnTNO62iavdcL9d72p3SLtk2sVuQJs0CRhMomKaGN0mEdgGK2FASV8CfaFOqdvEdmyfY/vswk2alASS1O6T5Hw/EmpKUvfvp+f7r318nDpxHMcXQ+nkklRpS61YAPrEd6SiJ92dkyZSknOxGcdvLFovC0ieBwckf3ap+5P9KemefLdOAP1RaUsnatLHofTBkuQutrqfID6g/4petzVJqrY... | 1 |
math | grade-7 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADaCAYAAACchDUnAAAdLElEQVR4nO3deXyU5b338e8smUwWkhBCwiqLiIAoKCIIiPqop7aI4oKiaBVoBcXHY63reVWtWotL7YO4W0HcTlVQqWjF01I3UAFBQUU4BtxYDBCWkHUymXn+QO9JaAJJ5p77mrnzef91XeE+yffVNiffTOa6fp5oNBoVAAAAAFt4TQcAAAAA3ISCDQAAANiIgg0AAADYiIINAAAA2IiCDQAAANiIgg0AAADYiIINAAAA2IiC7ZDPSzdq8AuXauwb16ukstR0HAAAACS... | [
"no",
"yes"
] | null | 0 |
math | grade-2 | compare-sides-and-vertices | true | false | Which shape has fewer sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALgAAAC4CAYAAABQMybHAAALLklEQVR4nO3dzW9c1RnH8d85d2bsebFDCLWDlCpIQFBSEAmJGyElmyKhLkCq1JcFfdmAVLVC7b7/QxdUSCxKN6BuSl82ERKLIiQkJOKEUPEmQlrVIlIcNy/Enhd7Zu49XVwbGye2M5577/OcM7+PxMIkIg/w1ejMmTPnGuecm+8Cl9rAUgz0HYi8VTLARAQ8XAOmK4CZX3Hu7KL0WETZOzkJlL5opz/cXwEeqaf1E/lqKQY+bwFXusDFNmAX++kvMG4KwUSUtgw... | 0 |
science | grade-3 | 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 | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAADWCAYAAAAD8D2GAAAW/klEQVR4nO3deXAc5Z3G8W/PIc1IsnxJtmyM7+ATsLEJ5gzYwALhWAgQstmQO7W7CRuSbDZhl92EbAgJ5CpIyFVZUglbBAeScJortoNDwA42py8wPjC2ZUuyZcnW3NP7xzvDeCTZGkkz3T2a51OlkqbndeuVj8fdv/ft97VW7EvYf21LAmBhAxYiIsVhY2OBDWc1BAg835Y8ImIUNiJSTJZJFQuea0sSyF7TzBzm4+zGIA1VCh0RKY7WuM2qlgSbOtPYgC8bLwo... | 2 |
math | algebra-1 | perimeter-and-area-changes-in-scale | false | true | Look at this triangle: If the base is doubled, then which of the following statements about its area will be true? | "iVBORw0KGgoAAAANSUhEUgAAABUAAAAOCAYAAADABlfOAAABHUlEQVR4nM2TMYqDUBCGJ7LEwgsERCRYCN4gnRYWVh5Ae8t0XsBCSCFi61lECzsrsbOxEjsrC1PIv8WCxBgX3A3sDkwx8+b9fMP/3gEA6M3B/ORS0zR0uVyIZVm6Xq/rga7rQESrFEURW2FZFlzXxf1+BwDwPI+iKOZz5nQ6EYBFxnFMqqpukpZlSaZp0vF4fD3wTDGOI87nM+q6fknpOM5iI8MwFrXneViJBkEA27Y3VwcASZKQpulcP6//8Ug9DAPdbjfKsmyvd4t... | [
"The new area will be\n1\n2\nof the old area.",
"The new area will be 4 times the old area.",
"The new area will be 2 times the old area.",
"The new area will be 3 times the old area."
] | null | 2 |
math | kindergarten | represent-numbers-up-to-10 | true | false | Which group has 6 hearts? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAASFUlEQVR4nO3dP0xb597A8R+t29rX5qbKQS+NbckDij1EwlKIeskGrC5MZAEpK4y1RBeuFPRG2Wopa6IyIXElVE9OygjZgq5YiPQO5r4eEpk0qHWEilOSvo78DsaIYJz4z8PzPD7n+1kSkvjxrxz6jXnic05ftVqtvvpL5H//FDl8L1KpCgAo4esT6f9c5OrfRAa/FOl79a5a/fcfpscC4Hb/+LuI7z9/1j648qVIIlirEQCocPheJP9G5Ne/RHb/FPnsj0rtN4g... | 0 |
math | kindergarten | subtraction-sentences-up-to-5-what-does-the-model-show | false | true | Which subtraction sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAAAyCAYAAAAZUZThAAAP1UlEQVR4nO2deXCU533HP3to39We0uq+kDgkQOJcDEjyAa6TYhvHTjhip7iOauhk4k6cHjP5z9dM28mkTUM70zYTY4fJhJQQcEtdIHZrMMSxDIFFyEagw1yLtNJKuzr2fPfsH+9qV9LKQpJB0or9/rN6r+f5fbXf73O/z8qi0WiUNNJIY1zIZzuANNKYy0gbJI00JkDaIGmkMQHSBkkRtHVcn+0QkjCdmFKNh3IG40hjmth/4AiN5yzUbTDTsGv7bIcDTC+mVOSRrkH... | [
"4 − 2 = 2",
"5 − 2 = 3",
"3 − 3 = 0",
"3 − 2 = 1"
] | null | 0 |
math | grade-2 | cubes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAXZUlEQVR4nO2dX2wTV77Hv2n+OcGxzdrOH7BJqGxDdkGZBpa9RNBSgnSblmqh0obtviR0H/b2StvSZXUfgq4apAsrXaksdFfq9qGQPC2bSrfpJht6dQmbFghXWUgcgTbEziUOk2yC/yj+V8fOH+U+TM4kjp0SyIxnxj6fl4TxMD7x+fjM7/zm/MlaXFxcnJoFRiJAaAGYXwSFIjtysoCibMBaCJTkAVlTscXFvqDUxaJQ1s+PNECOM8L9oywP2LGJs5pCkRuhBWD... | 0 |
math | grade-8 | congruent-triangles-sss-sas-and-asa | false | true | Which rule explains why these triangles are congruent? | "iVBORw0KGgoAAAANSUhEUgAAAUUAAAF/CAYAAADelduWAAA5kklEQVR4nO3deVzN+f4H8NdpX2ghRYyytTCSErIz1DDGco0ZS0aYDWMZs10zSAazzzD7ZmSKWfxmJq6hYmIMKipZW5QUikqltJ/O+f1xnOOkkDrnfM/yej4eHq7zPZ3va+bOvOb7Pt/lI5JKpVIQEREAwEjoAERE2oSlSESkhKVIpEElJSXYuHEj/P394eDgAFNTUzg7O2Pq1Kn47bffUF9fL3REg8dSJNKQXbt2oXv37jh79iw+/fRT5OTkoLCwENu2bUNlZSWeeeY... | [
"ASA",
"SSS",
"These triangles cannot be proven congruent.",
"SAS"
] | null | 2 |
science | grade-8 | use-punnett-squares-to-calculate-probabilities-of-offspring-types | false | true | In a group of cows, some individuals have solid coloring and others have white spots. In this group, the gene for the coat pattern trait has two alleles. The allele for white spots (a) is recessive to the allele for solid coloring (A). This Punnett square shows a cross between two cows. What is the probability that a c... | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD6CAYAAADUdTPBAAAZsklEQVR4nO3dW3CU9f3H8c8ecj4tIZSDIUKk4TCioljCaEWFTpEyIhfWKmAU6EU76hSxtVPbzrTjDGNb65X/URCnMpSOSKlTq9KJSIQKRaNFbTmEkBOnkA0hu9kcNtnD/2LJZmMOgD66u799v2aYYbPPPs9v53vzyTe/gy0cDocFAAAAwAj2eA8AAAAAgHUI+AAAAIBBCPgAAACAQQj4AAAAgEEI+AAAAIBBCPgAAACAQQj4AAAAgEEI+AAAAIBBCPgAAACAQQj4AAA... | [
"0/4",
"1/4",
"4/4",
"2/4"
] | null | 0 |
engineer | grade-7 | evaluate-tests-of-engineering-design-solutions | false | true | Which of the following could Kaylee's test show? Kristen's back porch got too warm in the summer sun. Kristen thought that the porch would stay cooler if it had a roof to provide shade. She wanted the roof to keep the porch from getting above 25°C and to stay up in rainy or windy weather. Before she built her roof, Kri... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAEICAYAAAA0p80lAAEAAElEQVR4nOz9ebwt613Xib+fqarWtOfhzHfKHTIDgYQZCQEhdhMxQVAkBDCCRlpbjMYItraiKGr/figtNrRKqxgJQRQbmWLAQGbIfHPn4czDHtdYwzP0H0/V2nuf8ebuc9j33pzvea3Xc9aqvaqeelbVt77D5/v5ire97W2B23JbbstteR7JP/2n//RAjqsB3vIj/2hfO9mvxg3hYHX2/o8vb8o8riXXm58X9d/sY/9un7+gEOK622+0vvtd/+f79w96//sRFUB7z0y... | [
"if shading the porch would keep it below 25°C",
"if the roof would stay up in bad weather",
"how long the roof would take to build"
] | null | 0 |
math | grade-1 | name-the-two-dimensional-shape | false | true | What shape is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAFi0lEQVR4nO3YMQ0CARBFwTuCAURQ0tCgCAv4wQXuFgsUjxxcZuotfvmy68zMAgAAJA5bDwAAgD0R2AAAEBLYAAAQEtgAABAS2AAAEBLYAAAQEtgAABAS2AAAEBLYAAAQOn56eHndv7kDfsbz9liup/PWMwCAP+WDDQAAIYENAAAhgQ0AACGBDQAAIYENAAAhgQ0AACGBDQAAIYENAAAhgQ0AACGBDQAAIYENAAAhgQ0AACGBDQAAIYENAAAhgQ0AACGBDQAAIYENAAA... | [
"hexagon",
"triangle",
"rectangle"
] | null | 2 |
math | grade-4 | multiply-unit-fractions-by-whole-numbers-using-models | true | false | Which model represents the product 8×
1
6
? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANwAAACECAYAAAD7h0UbAAAUD0lEQVR4nO2db2xbVZrGn8Sl67SB65adTYKqtRt3dpAYmrB0VA1KsNkqHe2OSh0QLRJ/7G6LlN0PW5ehMxNGqzgfdrur6SBnP6yKJpPGQxGECpJ2gNVMBnHbRJVgqJqWqVR2ampLiDRiKReaf3TceD/cnJPrxIn/3XvOveX9SahN7NhP8/De6/ue9zy3KpvNZq/eAC5PA9dvApksCIIwiVVVwO0u4NtrgLrVQNXVr7PZ97+SLYsgbn223gGs+tO0/kXDauA7a/V... | 0 |
math | grade-2 | certain-probable-unlikely-and-impossible | false | true | If you select a marble without looking, how likely is it that you will pick a black one? | "iVBORw0KGgoAAAANSUhEUgAAATMAAADNCAYAAADUt5eDAACH7ElEQVR4nO39eZxlVXnvj7/X2ufUqXns6q7qBhp7AJpJQHBgEoyYaK4SFBOvCEaTX6J+YwYcvon5fn2piahJTKJeY67X3Ht/RhAjiRJvTEISZXBohChDQwM90WMV3V3zcMa11vePNey1T1XTU/VQ3ed5wWv3Pqfq1Nl7PfuznufzTMIYY2hIQxrSkEUu8kR/gYY0pCENWQhpgFlDGtKQU0IaYNaQhjTklJAGmDWkIQ05JaQBZg1pSENOCckdqw/ePVLhqR1FXhivMjR... | [
"unlikely",
"certain",
"probable",
"impossible"
] | null | 3 |
math | kindergarten | ordinal-numbers-up-to-fifth | false | true | The first picture is a sun. Which picture is second? first | "iVBORw0KGgoAAAANSUhEUgAAAaUAAABdCAYAAAAFZHluAAAljklEQVR4nO2de1yUVf7HP2cuMMMgIBrKUN7RbDWwxM1U1LTS3SXNXDXbUuu32q6KeWlL3RXJWxe1vOQtFLPdzUuZRqtpmpDW2oKCl9IESjHBNBFkhrnz/P44c3uY2zPDDMzAeb9euw7P5Txnen3nfJ9zzvf7+RKO4zgwGAwGgxEEiJq6AwwGg8FgWGBOicFgMBhBQ8CcUpWBQ+dDd9DnyxpUGdgKIYPBYDA845NT2ldhQOZFrVtnk/urEZdr61BUbcKUU7U+d5DBYDA... | [
"barn",
"sun",
"tractor"
] | null | 0 |
science | grade-2 | read-a-thermometer | false | true | Select the temperature shown by this thermometer. | "iVBORw0KGgoAAAANSUhEUgAAAI4AAAHPCAYAAACFjuJ1AAAfpUlEQVR4nO2dXWwb55nv//yQ9TnTTeKiMTloC9irJYtTdF3b5NXpgVUSyNkAlaXmYg8ghtptgUVEE7vZc2HaulqcSpa2wHYj2r7YogUVGdibiKqM3WB3xTg42O025CItughKRslVMFTibG3EQyWyJH7shcIpKVGyNC+HmvHz/AAh1gxn+Lr+9T/vO/PO8zru379fA8McEedxN4CxJywOYwgWhzGEe78dtRp3fZgdHA7Hnm0txdne3oamaaY3iLEHvb296Ovra9rGlyr... | [
"50°F",
"40°F",
"75°F"
] | null | 2 |
math | grade-2 | select-figures-with-a-given-area | true | false | Which shape has an area of 8 square units? The shapes are made of unit squares. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKQAAACkCAYAAAAZtYVBAAADOUlEQVR4nO3dPXIcVRiF4TP6C4x/MigWACR27BBtgP2wA9gPC0CkTu3EmBwRItmqstBUE8yoCmLQ3NPXz5N1dXDvVL31Zf3NZlmW5fI2+e0mud4md0vgYE42yZPj5KtHyRdnyeby47K8uhp9LUhePk1O3t3sHr48S775bFcrHMr1Nnn7Ifn9Nvn1Jjm6utu9ECMjPDnetZck77fJ0fYfL2CE+/b+WpKjsVeBfxMkVQRJFUFSRZBUESRVBEkVQVJFkFQRJFUESRV... | 0 |
math | grade-4 | what-decimal-number-is-illustrated | false | true | What decimal number is illustrated? | "iVBORw0KGgoAAAANSUhEUgAAAKQAAACkCAYAAAAZtYVBAAACR0lEQVR4nO3bsU0DQRRF0TWiIpdABaS04IJogZQKXAItrVOC2bGEBHORzwltfcnB1Yjgcdr3fd8g4mn1D4DvBEmKIEkRJCmCJOV59uX5cv2r38GD+Xp/GX5++EKKkRWmL+S2bdvb67jkez4+r27/we3RS3XP+fKz23sPnb8hSREkKYIkRZCkCJIUQZIiSFIESYogSREkKYIkRZCkCJKU09F/HZqf8ZuOlkLmZw9+a34GE4IkRZCkCJIUQZIiSFIESYogSREkKYIkRZC... | [
"0.80",
"0.81",
"0.82",
"0.69"
] | null | 0 |
science | grade-4 | compare-temperatures-on-thermometers | true | false | Select the thermometer that shows the lowest temperature. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAQIAAAECCAYAAAAVT9lQAABoQUlEQVR4nO29e1wb570n/B3dwWgAg+3YCF/wpUYkcZzGRiR24jYGp8m2PRtwTtPkbGNy4qT77olJ4zhn3+NLjd33nDp2jX3ed5smx+DdbXMzpGm73VNDtk2aC8JpnOaCsGM7vkj4AhjQSCB0nfeP4Xk8IwnQZXQB9P18+AySRqORZp7v831+V4bnef6qBzg7DDj8gI9HBhlkMMWhYgC9EliaDczRAMxVN8+f4FJ9WhlkkEGqUM4CqjPDwoO5GuBrMwSWyCCDDKY... | 1 |
science | grade-5 | compare-properties-of-objects | false | true | Which property do these four objects have in common? Select the best answer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADQCAYAAAByQhWRAADjNElEQVR4nOz9d7wk513ni7+fSl0dT5+c5pzJWSONRqNoyZYlS7ZsbGxsrrExYLhml7275L2w7GV3L/4tLLBcTN4lGDAGbMA2zpbkICvnyUGTT86pc1d8fn9Ud58+aWbOmRmlqfe86tXdlbpOTXXV5/k+n+/3EVJKCVAulxkdHSWbzeK6LiEhrzWappFKpejs7MQ0zWv6XeH1H/J6I7z+Q65nwus/5Hrmalz/QkopS6US586dY/369Zimia7rV/lQQ0JWj+M4lMtl+vr... | [
"sour",
"stretchy",
"sticky"
] | null | 2 |
math | grade-3 | identify-equivalent-fractions-on-number-lines | false | true | Each of these number lines shows a fraction. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEECAYAAAASx0PMAAAjQElEQVR4nO3da3BU+X3m8ad1RQhJrWm1R2oNI8zYy20UCAihpiyIY7KxTTGbYAgqdsKSXdZ2bVEbSG3VVpKq3c2mnCwvtirOJKxEFSNvlNpUMGRFspC4BlyRMCWNJMY2AwY81iAY07q0ZlqNrs1p0ftCahnNABLDkf7ndH8/b6Q+rRdPtfry6Kf/+R9PIpFICAAAAIAtMkwHAAAAAFIJBRsAAACwUZbpAADsc/mDH+sLf/XvZ27nZeVqeeGL2rf21/Sftx5QfnaewXQ... | [
"B",
"C",
"A"
] | null | 2 |
math | grade-1 | addition-sentences-up-to-10-which-model-matches | true | false | Which shows 1+5=6? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUQAAABKCAYAAADDly0CAAAMw0lEQVR4nO2dSWwc2XmAv9p6YXeLnKFEjiTKQy0jS440UqwIwgwQxwJk3XxwbBk2MBcjQBzACzBB4KPP4yw2kASBT0YAAxk7QXywc/HAjic5JMgMlPEs9sSSIBLWMqSoHovsvbaXQ3VzU6vZ3exXVS39H0B0k1X1Xn0Nvr/fe/UWQymllly4UYdKAL5CEAThicA2oGTBcxMwmwFjqaXUG2tJ35YgCEKyXNgD9vV69Mv+DHy0EEVLQRCEJ4FKAL+pwQcuXKuDueZ... | 1 |
math | grade-4 | acute-right-obtuse-and-straight-angles | false | true | Is this angle acute, right, obtuse, or straight? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAMMUlEQVR4nO3de3BU9QHF8bObJyQlATYhhWwtRUV8ACmYEhQJJijSVmWcah/GR98d/6h9z3Q6Fds6Y2trbev0Ne0UEmqdVgVbpTx2JUAiApHEgMW0DQK7zTthl2RDyG52+0ceDSOVALv7u7t8P//l7s3ds/+duXP2ri0SiUQEAAAAICrspgMAAAAAyYSCDQAAAEQRBTtB+JsbTEcAAADABFCwE4C/uUFNG9aajgEAAIAJSDUdAO8u2OfT649/Sn2ef5iOAgAAgAngDrb... | [
"straight",
"obtuse",
"right",
"acute"
] | null | 3 |
science | grade-8 | identify-ecosystems | true | false | Select the savanna grassland ecosystem. This ecosystem has:
year-round rain and warm temperatures
soil that is poor in nutrients
many different types of organisms This ecosystem has:
warm summers and warm winters
a rainy season and a dry season
soil that is poor in nutrients This ecosystem has:
long, cold winters and s... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACtCAYAAAD2xRSHAAEAAElEQVR4nOz9ebRlaV3fj7+eYQ9nulNVV1V3Vw80DY0tg9CiqKhgVFbULCMixCAsgkaNMXGCBJUlMWYp+RKyXChBEwVRTNSlcViJ0SiCgiIIyNDI0EDPNdedzrCHZ/r98ey97zm3bnVDIsIvvd+1Tu27z56e/Zxz133v9+fzeX/EX+2FcNsIJooePXr06NGjR48ePT4jmDr46BzEvg2hJ549evTo0aNHjx49PtOYOhAhhPDZHkiPHj169OjRo0ePRwb08sp3vfH... | 2 |
science | grade-2 | compare-properties-of-materials | true | false | Which would smell more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AABBeElEQVR4nO29R4xl2Xnn+TvnuuddRGREmkhXviqLFEk1W1RTJHrUPWyBEoQWMFppIUGAQEBbAtJCOxLQUtoIkNm00AJGWxVnNJwRIEGtbnpWFcuwTFZV+gzvnn/XnG8W595nIiIzIzMjIyOz3h+48d67Pt7738+f76gf74i8UISywxRTHClaCXzQgaUQ6i58uWbX6ykhp3hcKDvwQtG+byej9XpKyCkeJzL+RTJa5+6750//+sGuoBQ0m7C1BdUqlErguiBy72M... | 0 |
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/t0lAAAjUklEQVR4nO3df3BU9d328SsBSQho9gZDCNhmlx+FOMlk06AN8owJyt2H1EaCHStiHwUE0T6tgrT+vEfSKoidtoAoKjqCSi3TUuVHKzhaWEodEsqW5VkFvMfJLipkg1YWIRCRsM8f3qTGZGOS/e45u5v3a6Yz7PmGfK/M1snFOZ89Jy0SiUQEAAAAwIh0uwMAAAAAqYSCDQAAABhEwQYAAAAMomADAAAABlGwAQAAAIMo2AAAAIBBFGwAAADAIMsKdnNzs5qbm63aDgA... | [
"positive trend",
"negative trend",
"no trend"
] | null | 2 |
math | pre-k | represent-numbers-with-pictures-up-to-3 | true | false | Which shows 1? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAdf0lEQVR4nO3df3AU933/8efunU6/TsdJOv0yAvFLCAthg7D4YTsI+AI2tvGvtI2duHHaJtOpm+m4mbqZ4Jmk07h2v3Zn7Ca1p40T/2jd+FdxCeBAwIagELBlGzBIRAgQQgJOP5F0J93t/djd/nEgkAFjS7pbnfR+MBrgdu/2c2/t6z7743O7immaZlsYjgfAr0PURAgRJ3YFsmxQmgEFDlDaQqZZ67O6WUJMPItdYD8WiP2nyAFlmbF0CiHiw6/D0QHwhqExAKo... | 2 |
science | grade-5 | 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. | "iVBORw0KGgoAAAANSUhEUgAAAksAAACtCAYAAACgPzu0AAAzJklEQVR4nO3dd3xT9foH8M/JbpqkSfeCDloE2SAb2XtWZInodeECr3ivA69cBPXqRVFcrIs/uSgiiAgyFVEZRWaBskdLWd0rTds0bdbvj0ovo02TNun3nOR5v159vWhycvLk9OTh+Y7zPZzdbreDEEIIIYTUSsQ6AEIIIYQQPqNiidwlKSkJHMfd9hMSEoJBgwZh7969Lu3r9OnT4DgOycnJLsdhtVoxZ84ciEQifPzxxy6/nhDiHU6cOHFXTpLJZGjVqhVmz56NsrI... | [
"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 | 1 |
math | grade-8 | identify-functions-graphs | false | true | Look at this graph: Is this relation a function? | "iVBORw0KGgoAAAANSUhEUgAAAQ4AAAETCAYAAADH+ejgAAAZSElEQVR4nO3db0xb570H8K8N/ksSs6Q22U0T7C0dCLyFKMGAOlUh0tVGA5vSaWXatBepVqmVwpvbquuLKc3atWqn9dXSrVOn0m1vRtSbGy106TYpjjptBhpu3MTuJdNVbah2B3ZL7KQ2Nn/s+8I5xz7YgA/+e+zvR6oAczicJPDt8/s9zzmPKplMJkFEJIO60hdARMrD4CAi2RgcRCQbg4OIZGNwUE6xWAyxWKzSl0FVisFBObndbrjd7kpfBlUpBgfl5HK5MDExseH... | [
"no",
"yes"
] | null | 0 |
math | grade-3 | fractions-of-a-group-denominators-2-3-4-6-8 | false | true | What fraction of the shapes are circles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABKCAYAAACB4iNkAAAOPElEQVR4nO3dz28b95nH8Y8oDm1KFEnJLmVZcmQ7sZ0urFhxtrVyqKUgrS/ZTbzAHvZQb5xDr4vcdm+rAP0Dgv4DkREU6GlX2a1RoI0RyXtYp8U6CiwgiZ3aUiOJ1MSSKJISLQ5F7UE/Yqe2Rcrzk3y/AB8iZ6jvPH4ezIN5ht9p2tjY2BAAAAAAW4S8XgAAAABQT2iwAQAAABvRYAMAAAA2Cnu9ANRm3ExLkrKlkiQpGYlIkgZTXZ6tyY+IE+xEPgEAakGD7VMTSwv... | [
"3/6",
"5/8",
"2/3",
"3/8"
] | null | 0 |
math | algebra-1 | compare-linear-functions-graphs-and-equations | false | true | Function A and Function B are linear functions. Which statement is true? | "iVBORw0KGgoAAAANSUhEUgAAAjcAAAGlCAYAAAAGbtd7AABRbUlEQVR4nO3deXxTdb4//leSJk26USh0gS60MEUUpIxAi4oMKAIud3ABxgVRr+LMyCiMesdlBq8zLrPIuOL4cxlnUEcUmWH7KnitcgGh9OoIFKVVSQstpSmUhjac7Pn8/mCSaeiStOe0J8vr+Xj44NH09H3eie988s77nJxohBACRERERDFCq3YCREREREpic0NEREQxhc0NERERxRQ2NzSgXnzxRWg0mm7/mzdvntopBhk5ciQ0Gg3Wr18/4PueMWNG4HHZuHHjgO+... | [
"The y-value of Function A when x=3 is greater than the y-value of Function B when x=3.",
"The y-value of Function A when x=3 is less than the y-value of Function B when x=3."
] | null | 0 |
math | grade-1 | ordinal-numbers | false | true | The first picture is a turtle. Which picture is fifth? first | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAob0lEQVR4nO3de1iUdd4/8PcMg8HMAArKgKIr6piSgIenBE0eS7Okq7DWtPTpsPLL2p402dxdT5Xu4uqW5bEnHw067M+zWdaKq4vVaiZdvxAB07YRIaFgLEiGGUZlmPn98WWGGZjDfc955v68rstLmLlPfv18D/d9fw8ik8lkAiGEEEIIIcQrxIG+AEIIIYQQQsIJNbAJIYQQQgjxIp81sK91mJB6TINxn7bhWgf1QiGEEEIIIcLgVgP7o8YOrPn2utOG8+c/G1DXbsS... | [
"turtle",
"sub",
"fish"
] | null | 2 |
math | grade-7 | interpret-circle-graphs | false | true | A survey asked office workers what they like to do when taking a break from work. Which activity is the most popular? | "iVBORw0KGgoAAAANSUhEUgAAAawAAAHiCAYAAAC0mviwAACiUUlEQVR4nOzdd3hUxdfA8e/dTe+9AwFCQu8gvXcQREQQXhFUUBTpKiAWUBREBKyI+hMbqIAiVUAIPfQOIdSQRiokpCe7O+8fCyuhpmyy2WQ+z4OS3Xvnnk3Cnp25Z2YUIYRAkiRJkso5lakDkCRJkqTCkAlLkiRJMgsyYUmSJElmQSYsSZIkySzIhCUZlRCCFStWMHnyZObPn09mZqapQyIjI4OrV6+SnJx83+djYmK4evUqGo2mjCOD9evXs3r1arKyssr82rdpNBo... | [
"having a snack",
"surfing the internet",
"taking a walk",
"chatting with coworkers"
] | null | 3 |
math | pre-k | represent-numbers-up-to-10 | true | false | Which group has 4 stars? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAKk0lEQVR4nO3dvW9T9xrA8SeERnIuqZBccdXKlpDoPUiRKtgqsmaF1StZyeqVrPwJsDIztl1ZQeoUxoZWQnJ0b29bo6hQR81t5DtY4SXNm+3jxy/5fJYUQk7OI51+8/slPidz3W63+/NexI+diDf7EX91A6AUF+ciluYj/rUY8c+FiLmf/+x2v/993KcFzLqvP424+LLT+8PnCxHX/9GrEUAZ3uxH/PBHxH/2IrY6ERd+/6v3DrEByrY032tLRMTb/YgL+x+8A6B... | 0 |
science | grade-7 | use-scientific-names-to-classify-organisms | true | true | This organism is an axolotl. Its scientific name is Ambystoma mexicanum. Select the organism in the same genus as the axolotl. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOzdd7hlVX34//dau51+bi/T+zB0GBAEBRGJoIgNK1EU89WIAkIiluSnYu+KSBQrBBENGiOoUQRFRMChTqHNMH3u3F5O232t9fvjOicMgyg6MYbs1/PM88y995y129rnfFb7bGGMMWmaorUmk8lkMplMJpPJ/M+RUmLb9p9XRhbcZzKZTCaTyWQyfx201qRp+meVIbPgPpPJZDKZTCaT+evx58bncj/tRyaTyWQymUwmk/krkAX4mUwmk8lkMpnM00gW4Gc... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADMCAYAAABp7h4wAAEAAElEQVR4nOy9d9itV1mgf6/2ll2/dnrKyUmDEAIJVUCQJsUYWlCQkSjO4AAKYkFQB0QElTZGBKQMEIQBEWUAf8yAAQFjgJAEklDS28mpX93tbav9/tg5nxyCGOSIDLPv6/qu69vlXe191rvXs56yRIwxOucIITBjxowZM2bMmDFjxoz/OKSUaK2/rzKEEMeoNTNm/PshZ0rojBkzZsyYMWPGjBk/HIQQcM79Rzdjxox/d/RMCZ0xY8aMGTNmzJgx44eH73d9/uV... | 0 |
math | kindergarten | compare-two-groups-of-coins-pennies-through-dimes | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlYAAACqCAYAAABvagFUAAB2HklEQVR4nO3dd3gc13no/+/M9r4AFp1oJAECLAB7JyWKKqS6rEhylUti2df24xLnOrl24lw7ufFN4iv7Jxc5Ki6yo2ZbstUpShSLKPZOgigkescCi+1ldmZ+f0A7Ji3HUWEVzud5/JAWgd05M2d23j3nPe+RdF3XhzJwKgFRFbI6giAIgiAIwttglsBjglonFFtBGkrr+t7IxT4sQRAEQRCEy9syL5jbE5P/p9QKs1yTUZcgCIIgCILw34uq0BqHwQy0JUCOZCf... | 0 |
math | grade-1 | simple-fractions-what-fraction-does-the-shape-show | false | true | What fraction of the shape is blue? | "iVBORw0KGgoAAAANSUhEUgAAAUQAAABkCAYAAAD+MUlEAAAB60lEQVR4nO3YsW1TYRiG0c+W+6wAPbBBJrBET88QSK4jMQR9+kiZwBvAAMzABJeCRyg1jvTH5Jzu696rX3qKu9u2bRsA5jAz8+Xb9/nx89fqLa/a+7c38/Xzh9Uz4FXbz4wYvgDeANY7PD0e725X7bjI8XSemevfD6y1Xz0A4KUQRIAIIkAEESCCCBBBBIggAkQQASKIABFEgAgiQAQRIIIIEEEEiCACRBABIogAEUSACCJABBEggggQQQSIIAJEEAEiiAARRIAIIkA... | [
"1/5",
"1/4",
"1/2",
"1/3"
] | null | 1 |
math | grade-7 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADhCAYAAADyOcJJAAAhIklEQVR4nO3deXyU5d3v8e9MJskkJCELIYQQwhL2XcENF1wRFHetj7a1np6qTxfb01Nb62MXa9VWW3va57Rqbe2mdnEXQVAUd0GURWQPS4CE7AnZM0lmnj/AK4lWSMh9zzWZ+bz/8PW7pmHur6+aV74Z7uu6PaFQKCQAAAAAjvDaDgAAAABEEwo2AAAA4CAKNgAAAOAgCjYAAADgIAo2AAAA4CAKNgAAAOAgCjYAAADgIAo2BpQnilbq+hV3a/Jj1+iBj56xHQcAAOB... | [
"no",
"yes"
] | null | 0 |
math | grade-8 | quadrants-and-axes | false | true | Look at the coordinate plane. Which point is in Quadrant III? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AAA0TUlEQVR4nO3df3DUdWL/8dcma0IS8gsCBDBErYAaAvJDficnh7QoFlFhPEbvpFKnOOPg3TA341DrtPZk7HToKf6YlvZG2pHWMYO1lws2ggghiFxAIEBggDsDGBJCyG82u8v++P5hN98ACezq+5PPfsLz8Zf7SXjnNW93P5/Xvve9u65wOBwWAAAAACMS7A4AAAAADCQUbAAAAMAgCjYAAABgEAUbuMUVFxfrk08+6b7929/+Vvfee69CoZB9oQAAcDAKNnCLmzhxoo4... | [
"(1,1)",
"(4,\n–\n2)",
"(\n–\n3,3)",
"(\n–\n5,\n–\n2)"
] | null | 3 |
science | grade-3 | identify-mammals-birds-fish-reptiles-and-amphibians | true | true | Fish live underwater. They have fins, not limbs. A goldfish is an example of a fish. Select the fish below. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOy9ebhcVZnv/1nD3ruGU2c+mRNCEkJA5kGQIcoggrYKyKhXBa96W8BW/Nkt2g6t9hVbbfWqaCtqo0irjY0y2LYIDgiIgTAIYUoIQ+bpTDXtYQ2/P/Y5RUIQAwRQ3J/nqSfnVKr2XrVq7X3etdb3/b7Ce++NMTjnKCgoKCgoKCgoKCj4y0RKidYakWWZL4L7goKCgoKCgoKCgr98pJTIIrgvKCgoKCgoKCgoeHHgnEO+0I0oKCgoKCgoKCgoKNh5FAF+QUF... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6cAAADMCAYAAACPx9V0AAEAAElEQVR4nOz9d5glV33nj7/OqXjz7TzT05PzaJQlJFAACRGETbQEyJhkG++CccDLGu9vd/FiWOw1Nt4fcU2wCcYLBoNIBoQAIZSl0cxIEzQ59HQOt2+sdML3j55pJARiAIFt9r6ep5/nTt26dU6d+tSZetcnHGGttUopjDF06dKlS5cuXbp06dLl3ydSSlzX5YEGbC5AyfnX7lGXLj+cpoYDbZhIoceFK6uL22VXmHbp0qVLly5dunTp8u8fYwxKqa4w7fJvnpK... | 0 |
math | grade-7 | interpret-graphs-of-proportional-relationships | false | true | The basketball gym at Craig's school was built in the 1940s and needs a lot of repairs. So, the school is asking families for donations to build a new gym. Craig convinced some local businesses to match a fraction of the families' donations. The graph shows the proportional relationship between the amount of money a fa... | "iVBORw0KGgoAAAANSUhEUgAAAisAAAI0CAYAAADcLmlmAABYcElEQVR4nO3deXQV9eH//9fdspCEJBBI2BJBJAgEBAVEQbFqpaL8BK2gH/d+3AourbXFanHn626rFi11oVbUSt0/ihapLKIsIiAJO0oCBAIhIfvd5/dHTDQkQBKSOzPJ83GO53jn3pv7usOdm1fmPfMeh2EYhgAAACzKaXYAAACAI6GsAAAAS6OsAAAAS2sXZeWMM87Qe++9V3v7gw8+0IknnqhwOGxeKAAA0CjtoqwMHjxYOTk5tbdnzpyp+++/X05nu3j7AADYWpv... | [
"The businesses contribute $6 when a family donates $20.",
"The businesses contribute $20 when a family donates $6."
] | null | 0 |
science | grade-6 | use-scientific-names-to-classify-organisms | true | true | This organism is a peregrine falcon. Its scientific name is Falco peregrinus. Select the organism in the same species as the peregrine falcon. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAADp/0lEQVR4nOydeZwkRZm/n4isu/q+pqfnvk+YAQERBEUUBRFQUQRPwAvXn67gtbouy6qr64EHKuuKiqKuiMciKoKIyDHiwAAzAwzMfU/39F13VWZG/P7Iqqys6uqeQVvc1Xj4FFOVlRl5VVV/443v+4bQWmvHcVBKYTAYDAaDwWAwGP73IqUkFApNvY4R9waDwWAwGAwGw/8NlFI4jjPlOtKIe4PBYDAYDAaD4f8OR9Lv8lk6DoPBYDAYDAaDwfAsYAS+wWAwGAwGg8H... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADMCAYAAABp7h4wAAEAAElEQVR4nOydeZwcVbn+v+851d2zZLZM9pCFJAQIgQRkR1BEuYDIogiCogJuqPeqIODV60Vcrt6L4oKKuyBuiMtFXAARkN2QAElYQ1ayr5PMZJbuqnPe3x+nuqdnSyYa0euvns9nSHd11alTp6qb85znfZ9XVFWTJMF7T4YMGTJkyJAhQ4YMGf5xYYwhiqJd7iMiL1FvMmT4y2EyEpohQ4YMGTJkyJAhw/8NeO9JkuTv3Y0MGf5qRBkJzZAhQ4YMGTJkyJDh/w5... | 0 |
math | grade-7 | classify-quadrilaterals | false | true | What name best describes this shape? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADpCAYAAAAeakAkAAAZWklEQVR4nO3df5TUdb3H8dfs/NiZ/TXbLl40NfOkWF1vSZhaKsKJUgu9egNUAn/VMSsULbxp6bGbpiV289eREjW5KEjglUivGiqoIMLR6pZ0BTHMKOHADjs7s7vz+3v/mJ2dXViW+fGd74/d5+McTjq77L799s9r3vP+fN4ewzAMAQAAADBFnd0FAAAAACMJARsAAAAwEQEbAAAAMBEBGwAAADARARsAAAAwEQEbAAAAMBEBGwAAADARARsAAAAwUc0C9q/fSOnmFd3... | [
"square",
"rhombus",
"trapezoid",
"parallelogram"
] | null | 3 |
math | kindergarten | represent-numbers-with-shapes-up-to-3 | true | false | Which group has 2 circles? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAJ6UlEQVR4nO3de0zV9R/H8dcBOlzEcwQVD3kJM8UKhxfMNP0jZ0at38basMxwa7VWzYm2Maebq3SZuhzqZrP5T2rMQatVv83ZDHNzaloiliLIz0LKcRQEPVwPHnZ+fyDs24EjYIfz/rzh9fhHuX0/r7Hn4BzGOdj8fr/f3Q78rwVo7AB8fhAZJ8oGjIwEpsYB4+yAze31+896pGcR9d88BxBV2dL5QrIdSB3RWTWRaRo7gIpmoKYduNICRHh8nW9gtGSykZGdjQJ... | 0 |
science | grade-8 | 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? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAACIQ0lEQVR4nO3deVxU9f4/8NeszAwMIDsDuMOYKwmuWZFmK1i3bovYYr8KrmUr1G2Xbt1bt8S6t1XtW2qFZd02yBYzyUozB8XdGXfBQVEQGJiBYWY+vz9wjgzrALOeeT8fGcyZcz6fzxnh7fucz3IEjDGGAFZTcwZHjx5DS0szBAKBt5tDCABAIpEgJiYWgwcP9nZTCI9R/CO+iOJf18TeboA32Ww2VFVVgTEbpFKpt5tDiIOamjOIj4+HRCLxdlMID1H8I76M4l9nQm8... | [
"sample B",
"neither; the samples have the same temperature",
"sample A"
] | null | 2 |
math | kindergarten | compare-two-groups-of-coins-pennies-through-dimes | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAZwAAACYCAYAAADQp1+bAAA9XUlEQVR4nO3dd5hd933f+fep99xepvfBVAwGvRcCrBIlikWiZMuSlThrx1acOE7sjXc35VlnnWyefXY3m7p2Hll2LCuKFFmiCklR7B0gAKLXQRtgML3cO7effvaPCzJ2NokJibgYan4v/gHiwfMA93O/85vPnHPP+R0pCIJg1oYrFSh64AYIgiAIwk9NlSCuwGAEWnSQZq0gOFK42y9LEARB+Fm2KwHq5UrtN206DEdrbSQIgiAIP62iB2NlmLHhUgXkglv7A1E... | 1 |
math | grade-7 | describe-a-sequence-of-transformations | false | true | What combination of transformations is shown below? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEyCAYAAADA5Kd8AAAY/UlEQVR4nO3df5TcdX3v8VcsZBNCCIYfCashhou02OTauBTRpndpbwuFXhVbZRuuusIuGn5V6xWKF1BsY6EIao0UKEkgopCAApVb+aGngRDRImPkBsq5ioGAJAEhEEIIG0zm/rHuNIDN5scnM7OZx+Mcj9ll5vv+xHyO++Sbz8wMq1ar1QAAAEW8rtELAACAXcluA7847uwf5QcPPtfApbCreOeUvXPj372t0csAAGiIWmCLa0q5Z+lzqVQqjV4Gu4COjo5GLwEAttl... | [
"translation, then rotation",
"translation, then reflection",
"rotation, then reflection",
"rotation, then translation"
] | null | 3 |
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