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 | kindergarten | take-apart-numbers-up-to-10-words | false | true | Choose the sentence that matches the picture. | "iVBORw0KGgoAAAANSUhEUgAAArgAAABUCAYAAABp2UT/AAAR/0lEQVR4nO3dXYwd513H8d/zzMt53z27tjdrt+w69UvSpraboJKEtMlFEEhRUHvVNjeACBdBAnoJAiGCkBBcwlVyF4RIueECUVDVO6RGCbRK1CiBuK4bO2/rfbH35bzPy/NwMXv2xV4ve3bPPDM7z+8jWbLXxzPz9cQ5/51z5jlCa61BRERERFQQMusDICIiIiIaJw64RERERFQoHHCJiIiIqFA44BIRERFRoXDAJSIiIqJC4YBLRERERIXCAZeIiIiICoUDLhERERE... | [
"9 is 5 and 4.",
"9 is 6 and 3."
] | null | 0 |
math | grade-5 | scalene-isosceles-and-equilateral-triangles | false | true | What kind of triangle is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADXCAYAAAAgGib5AAAb50lEQVR4nO3dfWxU973n8c/YDNhDZhn3EoYGDBQGTGIeHIxpKGkIxE1IKdAGHMAQtu2tolWq7qb/XCliVbXaVaWtepuq6XZbadtkNw1pCbdcmoRgMIUYxzwbME/GHmxshwezNgaMH2DGc/YPYxNrbOOHM3POzLxfUqRb+/icD/evj376nu9xGIZhCAAAAIApkqwOAAAAAMQTCjYAAABgIgo2AAAAYKK4K9iGYWjz5s2aMGGCvvSlL+mNN96wOhIAAAASSNwV7Pfee0/... | [
"scalene",
"equilateral",
"isosceles but not equilateral"
] | null | 0 |
math | grade-8 | identify-lines-of-best-fit | true | false | Which graph shows the line of best fit for the data? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAWYAAAFtCAYAAAA04cDVAAA7XUlEQVR4nO3de1RUV54v8G8VFI/iLSCgBBQV0vjW+CARo5104sTIBDSj6dgmq9N3xb6dx+2+7ep0T6/cScZrZ1Y6ceKYTJKJtknfzNhh1LTPmEcbSTBGIYhCiBCVl8ij0IJ6P8/9o6iSAlSUqn0O8P2sZXfq1Knz20Vtvpza55x9VJIkSa124HszYHABTglERCRQqAqICQGmaIGUMEDVapOkE91yN4uIiABgQSwQWmf2PEgLA3KiPKlNRETiGFzAWRNwyQ7UmgF... | 3 |
math | pre-k | fewer-and-more-compare-by-counting | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAMJklEQVR4nO3d3W9UdR7H8c+ZaYexUiD0yQ0sUdOyrF7wkICiCSQSQTSFrG7Cjf/AJmSzWbwxSwCNu3tD9tYLvTRxDUEDvbEYiMSEFUQXTOSpRGJAbWkrtOWp086cvSgYwsPSmXPOfH8/fu9X0lRCynw/c+ZzHus5URzHcX9JOntNGitLk7EAZKQhkprzUleT1FGQov7xOD4yaj0WEJ5nZkkNfdem/vCbgvS7R6faCSAbY2Xp9FXp55J05pqUG52c+gvKB2SvOT/... | 1 |
math | grade-2 | identify-the-fraction | false | true | What fraction of the shape is blue? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAABkCAYAAABgi07kAAAXLUlEQVR4nO2dW1Bb953HP7IEwgiDBBhhwJhLAphgHJMUY8dOsrH3Mkm3zWyz29mkb500szPxQ7KznXanfWp32u7D5iF+6DTp9KXpdnaamTZx0m5iO9O6JKwvEMDmZkvcLwIEEpZAAinah6MjDkJCtyOQ3P9nJjdZOucoo/M9v9/3//v9/ppAIBBAIBAIAN1eX0Cq2Ja99I866B91crXHxoF8HV9/upqOo6WYTfq9vjyBIKvQZFuEoBSAPquDeYc3+CcaYOtXqTtk4Hy... | [
"9/10",
"4/12",
"9/11",
"9/12"
] | null | 2 |
math | grade-4 | parallel-sides-in-quadrilaterals | false | true | How many pairs of opposite sides are parallel? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAWeUlEQVR4nO3dyXMk6VkH4LeqUlKr1ZJKrZa6xxEciBguzK1vDRgGjAls42XAYWzPPh6PDRz5HwgucLDHMx57AGO8AWYztllOnCC4cPPJxoDt6b1b6l1LLRx6ujKrSt2qKtWWWc9z+jI6q/VF1eUXv/jyzVKz2WwGAAAwFOVJbwAAAIpEwAYAgCESsAEAYIgEbAAAGCIBGwAAhkjABgCAIRKwAQBgiAYO2D/+wyvxkz+4Msy9AABA7pUGedHM+c9ci1v/eTciIubPVOK... | [
"1 pair",
"no pairs",
"2 pairs"
] | null | 2 |
math | grade-1 | addition-sentences-up-to-10-what-does-the-model-show | false | true | Which addition sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABUCAYAAAC4PkCPAAAQKklEQVR4nO3dW2xcx2EG4H/mXPbGJZeURJGyKkvWxW4gS0pTN0AVyHAcuAiQS9MWcP2Q9KF5cJCiKFKgLfqUvhR9bh9aoy9FiyJBgbYo3AKGkacgRgukjlM1NeTQsmXaEsWlZK24u9w9t5k+LEmRutBccs6cs3v+DxBArFdn5ocA89/Zc2aE1lqDiIiIiIiMkFlPgIiIiIhonLBgExEREREZxIJNRERERGQQCzYRERERkUEs2EREREREBrFgExEREREZxIJNRERERGQ... | [
"4+3=7",
"4+2=6"
] | null | 1 |
math | pre-k | rectangles | true | false | Which shape is a rectangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAEx0lEQVR4nO3cvU5cVxSG4W+Gn8Kxky5RLiDxJfj6cieJHBdu3Lm0lIbGReJ24jQkyAySBQLGoIGZs1OcIBMwMD/n7L3W2u9TGeHiFK8O4gPWIKWUxhfSX2fS6VyaJQFr2xxITzakHx5J321Lg/E0pbcnpR8LkT37Wtp8f9Z+8P229PSrtkJgXadzafRJ2r+Q/jyThiez9hNEhi492WibkqTJXBrOr30C6NJVU5dJGpZ9FNSC0JAFoSELQkMWhIYsCA1ZEBqyMBf... | 2 |
science | grade-8 | 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. | "iVBORw0KGgoAAAANSUhEUgAAAfQAAABwCAYAAADogILwAAAeIUlEQVR4nO3deXhTdb748XfWpk3TNN2gpdAqBTsCCio6iIOICJZFGQbEK/gTBC6oiCPjM9f7XFFGZVyuM4obKA4KOm78EIb94oagXFGQRQGRgmVpC7Q0adO0abPdP2IrS7ek2ft5PY/PY8LJyTfNOfmc8/18v5+vwuPxeBBCCCFEVFOGuwFCCCGEaD8J6FFs9+7dKBSKc/7TarXk5+fz8MMPU11d7dP+xo0bx9ChQ/1qy/fff09+fj7Jycl+vV4IIUT7qMPdANF+Tzz... | [
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is greater in Pair 2.",
"The magnitude of the magnetic force is greater in Pair 1."
] | null | 2 |
math | pre-k | represent-numbers-with-shapes-up-to-3 | true | false | Which group has 3 rectangles? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAADIElEQVR4nO3csYpUZxyH4f/s6hZGk1QJuYCYzipg593YeylWNt6RCIKdmj6bTnZ1QeNyUgxCIGSTKNlz3vV5qhkOA78DL8NXfbtlWZbj9zO/nM2cns98WAY259pu5tbhzI83Zr4/mtkdv1uWJydrz4J/7+7XM9dene2//HA089NX+6pha07PZ168nfn1/czLs5mDkw/7B6Jly24d7hudmXlzPnNw/qcHsGUfG/19mTlYdwp8GuGSJFyShEuScEkSLknCJUm4JAm... | 0 |
math | grade-5 | interpret-bar-graphs | true | true | For the annual class picnic, each student voted for his or her favorite meal. Which bar graph shows the same data? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACeCAYAAAAITX1dAAA1P0lEQVR4nO3dd3xP1x/H8VciEonECiKxGgRpjBgViS1GEbS1V82K3ZZSo7QUNfrTprYqqmipVskyitLYq6hReyUhiJFFQvL7Q/Otr1jhSxJ5Px+PPNp77rnnfL73yCOfe7/nnmtGd+skRETEIGlubFqHICIiGZh5WgcgIiIiIvIqUYItIiIiImJCSrBFRERERExICbaIiIiIiAkpwRYRERERMSEl2CIiIiIiJqQEW0RERETEhJRgi4iIiIiYkBJsERERERETUoItJuN... | null | [
"iVBORw0KGgoAAAANSUhEUgAABSQAAAFsCAYAAADVK7dvAACJBklEQVR4nOzdd3zN1x/H8dfNuNlmIgMRe88WNWOWFtVQq2ij1arS6h66FdXl12GUtqhWa0btokoUFTs2RVCCIEGW3CT3/v7Q3PY2IUGSm8T7+Xh48D3f8z3n873f3Pbmc88wABZERERERCRXWCwWzprgSBLEp0OaPm2LiIjIHc7JAF6OUNUdfI1gQAlJEREREZFcczbFwpYr9o5CREREpGBqWgyc7B2EiIiIiEhR8mfStb/9jVDd49poABEREZE7WXw6HEqEMyY... | 0 |
math | grade-4 | interpret-stem-and-leaf-plots | false | true | An employee at the craft store counted the number of red buttons in each bag of mixed buttons. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADoCAYAAADVNpOBAAApTUlEQVR4nO3daXRUVaL28acqQyWBTEBCgISQIAHCjKiMggYJMkbCdG0FBFoRuBJouVGkVWzHpQjdoQURNDIoV6LgANKM0gKNIIKCIMGgiEIgAUNiQ8jAfj/4pi4xIGhXndLK/7dWrVXsOsNzjn54ctauXTZjjBEAAAAAl7B7OgAAAADgTSjYAAAAgAtRsAEAAAAXss+ZM0c2m63KKywsTNdff70WL14sV0zTfuCBB2Sz2TR8+PDLbjNq1CjZbDalpaX9x+fDlWVmZsp... | [
"5",
"6",
"4",
"7"
] | null | 3 |
math | pre-k | one-less-with-pictures-up-to-5 | true | true | Count the cars in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAA/3UlEQVR4nO3deZQc13nf/e+tqt73nunZN8xgB4iFK0gKIEVqt0PLkhzGkqxEkl/nvLFjHzvO4kh2HO/2iRPHdhLrlW05sWPJMiWalEyKFAUSFAmQAIl9H8y+9kz39L53133/6MEAIAEu0gAUqedzDpaZrq6urjt//PrOc5+rtNYaIYQQQgghxKow3uoLEEIIIYQQ4p1EArYQQgghhBCrSAK2EEIIIYQQq0gCthBCCCGEEKtIArYQQgghhBCrSAK2EEIIIYQQq0gCthB... | null | [
"iVBORw0KGgoAAAANSUhEUgAABCEAAAB+CAYAAAAa5QvPAAB/8ElEQVR4nOzdd5gcx3ng/291mJx2Zmc2B+wCixwZAGaKlERJtmUrO0iyFey7czyHn88+Ocjh5LN9vtPJ56BzkOSzLdmURYlUIEWKGWAAkcMCWGBzmt2ZnRx7uuv3xywWAAGQoESApFyf50HYmZ6e3q6peareqnpLABJFURRFURRFUV4VUkrm63C6DAUbGqq1rSjKv1OGgKAOa3zQ5mo+JlBBCEVRFEVRFEV51czXJM/nX+urUBRFeX3ZGYKEC4zX+kIURVEURVE... | 1 |
math | algebra-1 | domain-and-range-of-absolute-value-functions-graphs | false | true | What are the domain and range of this function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABhqklEQVR4nO39f3yU9Z3v/z/nV34TEhJIIJAgIliQoChaEKouVl1tbaFrsb31h/2427Wntj39nO1+evaz7W779ePp2d12P3Wtp6fndKvd09u3p27VrWBEVBQKFSRCIMEfGCAkQH4M+TW/r5m5rs8fmCyBABm43kwmedz/0RlyPeeV65q55jlXrpnxOI7jCAAAAIArvNkeAAAAAJhIKNgAAACAiyjYAAAAgIso2ABGqKmp0Y4dO4YvHz58WNOnT1dbW1sWpwIAIHdQsAG... | [
"domain: $\\{x \\mid x \\geq 1\\}$, range: all real numbers",
"domain: all real numbers, range: all real numbers",
"domain: all real numbers, range: $\\{y \\mid y \\geq 3\\}$",
"domain: $\\{x \\mid x \\geq 1\\}$, range: $\\{y \\mid y \\geq 3\\}$"
] | null | 2 |
math | grade-8 | compare-linear-functions-tables-graphs-and-equations | false | true | Function A and Function B are linear functions. Which statement is true? | "iVBORw0KGgoAAAANSUhEUgAAAjcAAAGlCAYAAAAGbtd7AABQKElEQVR4nO3dfXyT9bk/8E+SJk2aUAqFlkJLadUC2kKZQIsKCAyBTTcfQHxm7ig7+8mGTDxH3RlOp+7MyXAen+bDdApTxzhD4SjurMjxsXQ+gEVtQdJCS2kKpWmb3nnO9/cHS0agbdLed3In6ef9evni1fDtdV+JV75cue8riUYIIUBERESUIrRqJ0BERESkJDY3RERElFLY3BAREVFKYXNDcfX4449Do9H0+d/ll1+udophJkyYAI1Gg61bt8b92PPmzQs9Lm+88Ub... | [
"The y-value of Function A when x=1 is greater than the y-value of Function B when x=1.",
"The y-value of Function A when x=1 is less than the y-value of Function B when x=1."
] | null | 0 |
math | grade-5 | compare-decimals-using-grids | false | true | Which decimal is greater than the one shown in this diagram? | "iVBORw0KGgoAAAANSUhEUgAAAJwAAACcCAYAAACKuMJNAAACGElEQVR4nO3aMU4CYRRG0cGwGXZAYeeKXIkrorNgBy5nqMYQOjFegu+cTpNnKG7+kPjt1nVdF4i8PPoDMMv++ofT4fyoz8E/9/Z1XJbl6oUTG4X97S9e3493/aHPj7PbJ7jdXpqfOh3uu719yHyHIyU4UoIjJThSgiMlOFKCIyU4UoIjJThSgiMlOFKCI7XbFr/mSfylbWlinjTs1jyJUQRHSnCkBEdKcKQER0pwpARHSnCkBEdKcKQER0pwpMyTSJgnDb01T2IUwZE... | [
"0.76",
"0.5",
"0.8",
"0.78"
] | null | 2 |
math | grade-8 | parts-of-three-dimensional-figures | false | true | In the cube shown below, which lines are parallel? L | "iVBORw0KGgoAAAANSUhEUgAAANwAAADxCAYAAACgaNlpAAAfhklEQVR4nO3de1BTZ/oH8G8AgwpGiCIBEkBgBrTLxm6Ll1praVUcZ3XrtugqWnTH64iKl3rp4upPq9J6xcvqbm1dXNRZLzta6lScXVu7y+pqxyW7VugoUUKAIBpUgkIE8vuDzSmQEAI5OZfk+cxkqjQ550nr1/c97/ue90gsFosFhBBO+PBdACHehAJHCIcocIRwiAJHCIcocIRwiAJHCIcocIR1Bw8ehEQiwfHjxwEAOp0OAwYMQHx8POrq6niujl8UOOJWTU1N+NW... | [
"IL\n and \nEH",
"JK\n and \nKL",
"FJ\n and \nIL",
"FJ\n and \nKL"
] | null | 0 |
science | grade-8 | compare-concentrations-of-solutions | false | true | The diagram below is a model of two solutions. Each blue ball represents one particle of solute. Which solution has a higher concentration of blue particles? | "iVBORw0KGgoAAAANSUhEUgAAAbAAAAEVCAYAAACBn7B3AAB3tklEQVR4nO29d5wkVb2//1RVx8mzOc3uzmY2EiQsUVDyIjmIP7zgF1CuygVURDGBF9RLxnvFiwFEEJWVcBEkgyA5rSu7S9qc4+TOVef3x6lTVd0zszs70z3s9JznxdLd1T1d1d31rk885xhCCIFGo9FoNAMM85M+AI1Go9FoeoM2YBqNRqMZkGgDptFoNJoBiTZgGo1GoxmQaAOm0Wg0mgGJNmAajUajGZBoA6bRaDSaAYk2YBqNRqMZkGgDptFoNJoBiTZgGo1Goxm... | [
"Solution A",
"Solution B",
"neither; their concentrations are the same"
] | null | 0 |
engineer | grade-7 | evaluate-tests-of-engineering-design-solutions | false | true | Which of the following could Sandra's test show? Wind turbines use wind power to produce electricity. Sandra was a materials engineer who designed wind turbines. She wanted to design a new turbine that would produce 10% more electricity than older wind turbines. She thought that a turbine made from lightweight material... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAESCAYAAACW6uzYAAEAAElEQVR4nOz9WZMlSZbfif2Oqtpy7/U19si9sjKrqqu6u3pBA72gAHCEBAkOZUgKOaQQT3zhEwQfgMs73vAZKDIP5AtnhKDMoInBAGgAw250Y6qru6trr8p9idW3u9iiqocPamZ3cfdwj4yMysjMOC4udhfbrpna0bP8z//IP/pH/0h5Ls/luTyXz5H803/6Tz+T4zqAf/JP/gmqSoyRGCOqOvz3YozBGIOIDK+dczhjcc4ABlVBDfgI80aZz2oWdYX3nnJUsDOaMCo... | [
"whether the new turbine could produce 10% more electricity",
"how much the new turbine would weigh",
"if the new turbine could turn easily"
] | null | 0 |
math | grade-3 | reflection-rotation-and-translation | false | true | How has this figure been transformed? It has been... | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAANnklEQVR4nO2dW2wU1x3Gv/VevDP2msVrDMVeC1KDURSuSYhTk2YdCSrRS9yklZKokaARfSrhKZCqqrCjqgqJqqrQpyAuD1D3xRHpQ6LgCJMGEpKmsIE2snFIXK/NxfGatTfMCWvPTh+WddcYe8/Mzs7Mzvx/Ei/Wmf8cZvfbOWfO+b5xPf7440okEoEevP/++1AUBVRPe72enh5daplNJBKx9HV2Wj1PJBJBe3u7LgU7OjqgKArVK6CeXaDvlbXqlelSiSAIS+MxuwM... | [
"rotated",
"translated",
"reflected"
] | null | 1 |
math | grade-3 | coordinate-planes-as-maps | false | true | What is at (4, 4)? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFjCAYAAAAHNnwuAABjXElEQVR4nO39eZhcZZ3//z/PObV19Z7uTshCAoR9J4GERRBCiCwREFB0QKOsMYAIAvIZcRwHvz+BYVNkUVBGBcSFCQygsgWJICKEACGBrITQZO21utaz/v6oTiVNd5JuUp1KUq/HddWVWs6573d1Q/Wr777PfRtBEASIiIiIiEhRmKUuQERERERkZ6KALSIiIiJSRArYIiIiIiJFFNr4wcMPP8yrr74KwD777MMll1xCNBotSWEiIiIiIjuiwgj2q6++yttvv81tt93... | [
"pet store",
"art gallery",
"radio tower",
"magic shop"
] | null | 1 |
math | kindergarten | am-or-pm | false | true | Todd is washing his dog one morning. His watch shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABaCAYAAACCNCH/AAAIiElEQVR4nO3dwWub9xkH8MeN25CG7H2hG6WEzuRYukqHbgusi9u1TXzqbutJynaIfXJ2qWUY21/QlDGawMAOO1iGjXSX2VAm57ayQQo9SIdSaA8TLU2hGUhLSpc0iXdIbFQldiTllWTZnw/kEPv96XkkfPj65+d9f2Pr6+vrAQAAZOKRYTcAAAC7iYANAAAZErABACBDAjYAAGRIwAYAgAwJ2AAAkCEBGwAAMjTe6YX1+jfx4YfX49atfrbDKHvssbF49tn9cfhwxz9... | [
"11:00 A.M.",
"11:00 P.M."
] | null | 0 |
math | grade-3 | match-clocks-and-times | false | true | What time does the clock show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACwCAYAAAA16xkbAAAQa0lEQVR4nO3dXWzdd3kH8Md23n1KWlYag2gps9HQ2uHTbRpMSdguOhzYGFpTxNi0OBIvE3EumiClNzQIhwsSifamqWiDUJOqIKEm0sYmxZXSbBDTaoXJZrwOu6zA2HEb6Ns5eWljexfBjn2S2Ofv8zs+Ped8Pjc9lv37/58qvvjmyfN//m3T09PTAQAAJNFe7wIAAKCZCNgAAJCQgA0AAAkJ2AAAkJCADQAACQnYAACQ0Ip6F7BU586di2PHjsXw8HD85Cc/iR/96Ef... | [
"nine fourteen",
"nine thirty",
"nine forty"
] | null | 2 |
math | grade-8 | make-predictions-with-scatter-plots | false | true | Based on the scatter plot below, which is a better prediction for x when y = 24? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAnKUlEQVR4nO3df3DV1Z3/8VcSAslFIUIS8UJ+dFH8XB0lzG0HrUAStoCWMBDarT9IBUSUWh3CuN3B6m7T3YFsty4Sh5Za3AV2wbXbleDiTDcwlag7m9j1zl6KbC5QbXIDAQksQfESIHK/f2ju10BuIMnJ53N/PB8znXo/5/p5v09nKq85nntOSjgcDgsAAACAEalONwAAAAAkEgI2AAAAYBABGwAAADCIgA0AAAAYRMAGAAAADCJgAwAAAAYRsAEAAACDYipgd3Z2qrO... | [
"25",
"97"
] | null | 0 |
math | algebra-1 | perimeter-and-area-changes-in-scale | false | true | Look at this square: If the side lengths are halved, then which of the following statements about its area will be true? | "iVBORw0KGgoAAAANSUhEUgAAABgAAAAOCAYAAAA1+Nx+AAABMklEQVR4nN2UsaqCYBiGX/NALQ2RIC3iJnQDDq6BLQ2tBYG4eAGFbm3qLYg34ZhzITh1B26tuTRIoO8ZzkEITocT2HIe+IYXfv4H3g8+gSTxRnrv/LwVeJ4HQRAeZj6fdycAANu2QbKdw+HQreAVJEnCdrvFdDrFaDSCbdtIkgS6rmM4HGI2m6Esy6/HJOm6LkVRpCiKnEwm3O12rOuazxiPx1ytViyKgkVRUJIk6rrOPM95vV5pGAbDMCS/62ipqoqn04mKojAIgl8... | [
"The new area will be\n1\n2\nof the old area.",
"The new area will be\n1\n4\nof the old area.",
"The new area will be 9 times the old area.",
"The new area will be\n1\n8\nof the old area."
] | null | 1 |
math | grade-4 | interpret-stem-and-leaf-plots | false | true | The receptionist at a doctor's office kept track of each patient's wait time. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD+CAYAAAAAuXIHAAA7pElEQVR4nO3de1zP9/8//tvr1auDVErRgU6KDiy2jCGHKTKnKJHTG5NsIdbeDhvbMIyND+/ly5zZmAgLiUUTMqehyTQlTLxrOZUoOrwevz/8er6XDl6zZ6+Xw+16uXS5vDx6PJ7P++Pp1cXt9fB8PlIIIQSIiIiIiEgWSl0XQERERET0MmHAJiIiIiKSEQM2EREREZGMlEuXLoVCoZC+lEolLC0t0bVrV6xZswZlZWW6rlFj165dg0KhgImJiVbOV1xcjGHDhsHc3By... | [
"9 minutes",
"11 minutes",
"10 minutes",
"12 minutes"
] | null | 1 |
math | grade-8 | quadrants-and-axes | false | true | Which point is in Quadrant II? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH9CAYAAAAgWgsdAAA8FklEQVR4nO3df3RU9YH//9ckQ0J+TgJBws/4C1AhgoCRX6GlSIvi4k+O5WNbrdRP7Tk92q7b79fDdj27buXrnl22itbvlm2/sv3ItkcWti0FF0WEEEQMCAQIFrAEMCQmkN+ZzExm5n7/CBMTCCGB982dC8/HOT0yd5Kb13l35t7XvOc9dzyWZVkCAAAAYESC0wEAAACAqwkFGwAAADCIgg0AAAAYRMEGrnGzZ8/W73//+47bf/zjH3XrrbcqGo06FwoAABejYAPXuNt... | [
"T",
"V",
"U",
"W"
] | null | 2 |
math | grade-4 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC7CAYAAABfLOnYAAAYUUlEQVR4nO3d/29U9Z7H8fc5nU6nw/Qb03ZoKYVaQNavIWIiiZdNIIFETIT1eq/fFt0K14Bm/4f9cX9XjAt2lYui6/WyJGoCubBZdMPNqiGrSxbBQoG2MG2nQ9uhnc63sz+Uns+M2tIvZ+ZzZub5+Ol8mpn2HZzGV2fO5/UxLMuyBAAAAIAjTN0DAAAAAKWEgA0AAAA4iIANAAAAOIiADQAAADiIgA0AAAA4iIANAAAAOIiADQAAADjIo3uAX3Phh7ic+88x8fpM8bh... | [
"yes",
"no"
] | null | 0 |
math | grade-1 | open-and-closed-shapes | false | true | Is this shape open or closed? | "iVBORw0KGgoAAAANSUhEUgAAAQkAAABkCAYAAACVdcVUAAAFCElEQVR4nO3d7WuVdRzH8c85ZytZ3nGgERNyICyCBatBJQ0hTK1MJyVIeENlEVmQTEWI6GFR5LBACrTErGER5lyBZiS1yO4THKEjSR9sDyYd5mZjavPqwXAxdvbdOTvX71x379cfcM7v0Vv5bH5NeZ7nCQAmkQ76AQDCjUgAMBEJACYiAcBEJACYiAQAE5EAYCISAExEAoCJSAAwEQkAJiIBwEQkAJiIBAATkQBgIhIATEQCgIlIADARCQAmIgHARCQAmIgEABORAGC... | [
"open",
"closed"
] | null | 0 |
math | grade-1 | comparing-review | true | false | Which group has more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAgwAAABeCAYAAABPX0zaAAAG1UlEQVR4nO3dv2/U9x3H8bf5cUixjT1ETRGVQiy1pRPQJUtASGGhVVQv8Qr5BxKzwpx2rOEfgKxmcZMhC0NqmLLEbKGpHCo1MlUyXH0GyS7oOlxPylHffe77vc/37ovzeCz81OfzfR7LS+cfTLXb7faTvYi/P4tovYh43g4A4CfuyFTE7OGIX74W8UYjYurJbrv95fakHwsAqKu3j0cc+eZZ5xcnGhG/nu6sCQDgp631IuLR04itvYi/PYs4tP288wfGAgDQNXu... | 0 |
math | kindergarten | count-on-ten-frames-up-to-10 | false | true | How many shapes are on the frame? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACQCAYAAAAyRxwtAAAOZ0lEQVR4nO3dP28dVRrA4Xf+2MEhwk5iJ1ttUiJaEEh0C20qkKioSBMpYj/AfgA+wKJIaQINFRJUaYmokEDQoi2dLsROYiMTE3v+bJGghWTJje0zcyec5+kiReecn6bwq+vrM8WNW/t9ABD/OFvP+wgA/AWU8z4AAAD8lRiwAQAgIQM2AAAk9MQXDl89Vc3jHHPzw932D//Wrz8n+tvZ/wkADsgn2AAAkJABGwAAEjJgAwBAQgZsAABIyIANAAAJGbABACAhAzYAACR... | [
"9",
"1",
"4",
"3"
] | null | 0 |
math | grade-5 | reflection-rotation-and-translation | false | true | How has this figure been transformed? It has been... | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAOh0lEQVR4nO3da3BU5RkH8P/ZTZbcd7mlIRRyI8KCNaEKQopkYVCnlBlIbZlqYEiGL2jsgCNoGdQkGj9YotBOCopDEwShQ1shQ9VptdxSgnJzg8AGMVcwiUkwm5DNbrKX0w8x4ZINe87uue2e5zfjjMDZZ9/Zc/57bu8+h8nOzmZNJhOEcOLECbAsC6rnf71jx44JUktuJpNJ0Z+z2uqFmUwmFBUVCVKwuLgYLMtSvQDqhQrarpRVTyNIJUKIolHQCVEBCjohKkBBJ0Q... | [
"translated",
"rotated",
"reflected"
] | null | 2 |
math | grade-4 | classify-triangles | false | true | What kind of triangle is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADaCAYAAACchDUnAAAjwUlEQVR4nO3deXCUdb7v8U9nIUnbJJWMidABAyYDGEANi+wEwiIgyOqCjDqKuOHCHkDRYc0mICAggyIig6JglFK4OmdGczijXCdl7p2bk/IEhmnqju2t6anpOUTTZOu+fyAZkEWSdPevO3m/qqxAL8/zaYo/Pnx9+vtYfD6fTwAAAAD8IsJ0AAAAAKA1oWAbMmHCBE2YMMF0DAAAAPgZBduAnTt36siRIzpy5Ih27NhhOg4AAAD8yMI12MHl9XqVnp4uh8MhSUpMTJT... | [
"equilateral",
"scalene",
"isosceles but not equilateral"
] | null | 2 |
math | kindergarten | count-to-fill-a-ten-frame | false | true | There are 9 shapes on the frame. A full frame has 10 shapes. How many more shapes do you need to make 10? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACQCAYAAAAyRxwtAAAPtUlEQVR4nO3dXWyfV30H8J9rJ2lejGvHaQYjDQ1p06VpA0JRuWglh1alY9sFAuoIilRpGkKgXbGLicFUAUOTNqS4UXsxCS5axKTSikmDsJuViiK1UcZSJyUdeVMiEiVO27TO6/JW7yJY5GVO/P//z/Ocxz6fz10s/8/5fXMu/NNzzv85XS8eOT8RAMT6pT25SwBgFrgpdwEAADCbaLABACAhDTYAACR0zYHDjw1056gjm18fu3jFv+WXvyTyX7zxLwFAizzBBgCAhDT... | [
"8",
"1",
"4",
"5"
] | null | 1 |
math | grade-1 | open-and-closed-shapes | false | true | Is this shape open or closed? | "iVBORw0KGgoAAAANSUhEUgAAAQkAAABkCAYAAACVdcVUAAAKKklEQVR4nO3deXDU5R3H8ffmIpKYSCNGhgFqpooBJKjIFS65IYQAIt5Q6sEpl0dbOy3C1NGp5QiESxBEkYpiQgiEcBiD4ZaiCBLKIIyJSDNxi4kkAjm2fwRSqgLJZnef3f19Xn/vbD7/5DPPPr/n+/xsDofDgYjIVQSYDlAfezMOcGz/CdMxRPxakOkAzvjPv79n5Utr2LfpIABLv5hNo+hIw6lE/JPPrSQyFm1hcsc/1hQEQOYb2wwmEvFvNl/Zkzjx2SkWTV7BN8f... | [
"closed",
"open"
] | null | 1 |
math | grade-1 | am-or-pm | false | true | Pam is taking her new puppy for an afternoon walk. Pam's watch shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABYO0lEQVR4nO3deVSb55k3/q9YHhZLLBI2SF4QXiB2IJDgJrGbBkhSO52GGDdpZ5J2xnjaZrqcTvC0b9rZXuNp59fOTN/XOJ3pO12mIV3cdsYe4+IudpNYJBOTxcTCeBNeELYRYCMQSGYRCP3+IFJZtNzakIDv5xyOQbqe+7ltS4dL93M91y1zOp1OEBERERFRWMRFewJERERERIsJE2wiIiIiojBigk1EREREFEZMsImIiIiIwogJNhERERFRGCVEewIUfY7JMUxMjk7... | [
"3:30 A.M.",
"3:30 P.M."
] | null | 1 |
math | grade-8 | congruent-triangles-sss-sas-and-asa | false | true | Which rule explains why these triangles are congruent? | "iVBORw0KGgoAAAANSUhEUgAAAXoAAADiCAYAAABA4gwKAAAwoklEQVR4nO3dd3yV5f3/8dd97jOSQAYQIKCShA2yQZkqWFBaByiidUOpLW2tQt0bZ0tdaNX25wAsalUcqO3XwR6BgIGwZI8EMETIhpCz7vv+/XGfkEEwIZyTsz7Px4NH4NwnyUVyzvtc53MtxTAMAyGEEBHLEuwGCCGECCwJeiGEiHAS9CLoZs6ciaIoZGZmnnJtz549tGnThuuvvx5d14PQOiHCnyI1ehFsJSUlnHfeeVxxxRV8+OGHJ28/cuQIw4YNIzU1la+//hq... | [
"SSS",
"SAS",
"These triangles cannot be proven congruent.",
"ASA"
] | null | 3 |
math | pre-k | count-corners | true | false | Which shape has 3 corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAFaklEQVR4nO3dy2tcVQDH8d/kJdZWXfn4A7RuXOgmIPggW3e6deVGUfCPEHHhwoWoqAsX4rbuEiqIjQ8kFjSLlkLTELBVEm0oaTOdMskk18Xt0Ippkpu593ce9/uBQtPJzJxMvzP3nMw9TKcoimJtS1ruSZs70qAQMLKJjnRiXHrimPTolNRZ6xfF2Ruhh4WcTT8oTVzqlV88PiWdfKCsEBjV5o508aa0uiUt9aSxG4PyAiJDnU6Ml01JUndHGtu56wKgTsOmtgt... | 0 |
math | pre-k | ordinal-numbers-up-to-tenth | false | true | The first picture is a bucket. Which picture is sixth? first | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAg3klEQVR4nO3dfXAT570v8O+uJGMby8bm3XZJoDZ+CQESqK10UuITsIe0EIjt3BRoJzFpYjpzA2QKZG4uJHDCOadJaC92OhNMSMzp3ABtbNoTaMixIcdpOnNlBi4OcGXAkAONbJOG+oAFNljS7v1jLVmy9bKSdlfa3d9nptNYWu/zsPN7/Ht293lheJ7nQQghhBBCCJEEG+8KEEIIIYQQoiXUwSaEEEIIIURCsnWwbzp5zPz3fjz0mQM3nTQKhRBCCCGE6ENUHew/9jq... | [
"boat",
"crab",
"bucket"
] | null | 2 |
math | grade-1 | subtraction-sentences-using-number-lines-up-to-20 | false | true | Which subtraction sentence does this model show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAUrElEQVR4nO3de3CU9b3H8c/mRhpyBRIQG4mhBxAMdwmBWgQGvFWBKil0HMEWUWwPVRwGUTuCpgWLWh3pOFJnSqkNw60JYsvgOWgSxpALIYEjDFjBADEJEkJiriRL9vzxuBtDgGRhzbPP7vs1k9ndZ5/ZfH+Ty/PZ3/4uNofD4RAA3KDT9dK8/5X2fy0VzpHGx5pdEQAA5ggwuwAA1rezVBq93QjZAAD4OwI2gBvyTYv00P9Iy0ZK6yaaXQ0AAOYjYAO4IUEB0p77pBf... | [
"7–1=6",
"9–1=8",
"7–3=4",
"11–1=10"
] | null | 0 |
math | grade-1 | addition-sentences-using-number-lines-sums-up-to-20 | false | true | Which addition sentence does this model show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAW9UlEQVR4nO3de1BU590H8O9yc4PcFURSBKEDXkLAS8RLEsVUE3NTE6WayUTSGFPTjq12HGNMJxppNU2T6hszmVhnQq3B8VYwJuXVd0wAp1xF0KijRs0iuGBccAnLfWXfP07PwgLK7nLYc87y/cwwu3sW199Pdj1fnvOc52gsFosFREREREQkCQ+5CyAiIiIicicM2EQK8MkFQLsHePZ/5a5kYNiHsrhLH0REauMldwFE7q62GRihBbz7+HXW2A68lgv8303Ax9PVlTm... | [
"0+4=4",
"3+7=10",
"3+4=7",
"1+6=7"
] | null | 2 |
math | grade-7 | identify-linear-and-nonlinear-functions | false | true | The graph shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AAB8H0lEQVR4nO3de3hb1Z0v/K+ulnyVL4lzww5JSGgS2ySQ0ISYwIQCA4U2tDS0L810hjJDZ4Bpn7bn7elb+p6WlOlzCp0pt+nplFNufZ+e0nIPJiQlxK4DuZjEjg3kYmLZjuO7JOu+99be7x+ylDixE8ney5Ks7+d5+lDL2j//sra09k9La69l0DRNAxERERER6cKY6gSIiIiIiGYSFthERERERDpigU1EREREpCMW2EQUd+211+LVV1+N//z666/jM5/5DFRVTV1SRER... | [
"nonlinear",
"linear"
] | null | 0 |
math | grade-2 | place-value-up-to-hundreds | false | true | What is the value of the underlined digit? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAAiCAYAAABlRa5TAAAEdUlEQVR4nO3dv0sbfxzH8ddFDXEJSordtCA0FRyiRZc2dHAqdhA6hNJC6FJEQcnQBukPBHEwlHYoZuiiougfUMF0CB1KOxQKFgkVwcGKilZRjGlqpV6HL97XYL9+G+9s8u33+YDAfT53984724vwuc8ZpmmaAgAAAOAIV6EbAAAAAP4kBGwAAADAQQRsAAAAwEEEbAAAAMBBBGwAAADAQQRsAAAAwEEEbAAAAMBBBGwAAADAQUcC9vT0tEKhkEpKSmQYhhoaGo4tEAw... | [
"5",
"500",
"50"
] | null | 2 |
math | pre-k | one-less-with-pictures-up-to-10 | true | true | Count the starfish in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAABC+ElEQVR4nO3dd0Dc9f348efngDvGHeOODYFjQwJJNAuiiTHDkeWoKxpjbWut2qq1P9taO2xtq53u3VaNiVuz3BmOaAIkMQYIYe8Nd4y7Yxxw798fBwQC8esAc4H3448299l3n7z8vPL+vN+vtyKEEEiSJEmSJEmSNC5Up/oCJEmSJEmSJGkykQm2JEmSJEmSJI0jmWBLkiRJkiRJ0jiSCbYkSZIkSZIkjSOZYEuSJEmSJEnSOJIJtiRJkiRJkiSNI5lgS5IkSZIkSdI... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA7sAAAB+CAYAAADlVwZsAACBq0lEQVR4nOydZ3gTV9aA35FtyUWyLcndxpa7DRhI6ARIoaRQAqSSQHrPbsrWZJPdTTb7pWxL752SnkAglZZCAjYdN9wt9yrJtiQX2dZ8PyTLNjbZ7C7FwH2fJ8GauTNzZ66O5px7T5EAGYFAIBAIBAKBQHBUkGWZegeUtIO1F3qEti0QHBe8JdB4QbI/hCtBQhi7AoFAIBAIBALBUaO+S2ZX24nuhUBwejM1ELxPdCcEAoFAIBAIBIJTieJ217+RSkgNcK00CQS... | 1 |
science | grade-6 | compare-thermal-energy-transfers | false | true | Two friends bought phones that cost different amounts but had identical batteries. After using the phones for a while, both friends had to turn them off to let the batteries cool. This table shows how the temperature of each battery changed over 5minutes. During this time, thermal energy was transferred from ____ to __... | "iVBORw0KGgoAAAANSUhEUgAAAvgAAABfCAYAAACdpLOcAAAqYUlEQVR4nO3deVhTR9s/8C9IFcUVcac0wIMQKaaKIFgVf2DrUqyKWkQWl6K+dQNbtVIUKyJia59iK2IV9LGKBQW0Uu2r1n2tCyoUfVyAomJdUJEtEsD5/XFeAiEJnIRAIN6f68qFzpkz557JzGE4mXOix0L7MhBCyJtmbgoQNUbbURDSvNE4IoSf5dcb9XD6jXo0QgghhBBCSIOiCT4hhBBCCCE6hCb4hBBCCCGE6BCa4BNCCCGEEKJDaIJPCCGEEEKIDqEJPiGEEEI... | [
"the surroundings . . . each battery",
"each battery . . . the surroundings"
] | null | 1 |
math | kindergarten | times-of-everyday-events | true | false |
Bob is changing into his pajamas just before going to sleep. What time is it?
Choose the more likely time. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHQAAABzCAYAAABJnyafAAAOQklEQVR4nO2deXAT1x3Hv9pdaXVa8iH5AhvbHOYmAQLkICkpmYQ2TYYwbScMZVomaZn2jw6hx7RMYmjaph2SzjQzSZoM7aRJmM60kOZoSNMpJAyhBXJACjY2GGMM2JYP3atrV9s/ZHu11mHtai3Z8n7+0j7t+72f9qt37Htvf6vheZ7viwCXGcDHASwPlWkEpQEsJDDPCFTqAE1fmOdPewvtlooSrCkBqEtM/KBaBywwxdVWmT74OKA9APRGgA4GILxs/AtVzOm... | 0 |
math | kindergarten | count-pictures-up-to-10 | false | true | How many dolphins are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAE0CAYAAABZ4EexAABrEElEQVR4nO3deZhcd33n+3fta1dv6m6t1mYZS7LwLlu2iS2H4IfHQGAmZALJTQLJJfcaEjuBQMITlowZAg4kTi725JJAgucS87AEx0FJbIhlZWSEbYQXWZtltdbel9qrTp1zqur+cbpL3epF3a0+6u7S5/U889B0VVedst9kvlX1O7/jqVarVUREREREpC54F/oARERERERk/mjAFxERERGpIxrwRURERETqiAZ8EREREZE6ogFfRERERKSOaMAXEREREakjGvBFRER... | [
"2",
"1",
"7",
"3"
] | null | 2 |
science | grade-4 | identify-minerals-using-properties | true | false | Select the one substance that is not a mineral. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEYCAYAAADPtGNgAAClzUlEQVR4nOz915Ns6XneC/6WN7nSm/J21/a7d3uYbhIkaAGSoo4onTM6MxOauVGcy5n5JxShqwmN5loTZ0ZHmtDRHIkSSYmiRIAgwUaj/e7efu/yld7nylx+rblYWdkGDZAAsQGQrCeiIquyXJrvWe/3ve/zPq/w1ihJrmYgK3GBC1zgR8AkgodTaPhQlOHnCun94gWxLnCBvxqyElzNpJ/b0cf3ixfEusAF/uo451GQfHyf+NN5KBe4wN98XJDrAhd4Rrgg1wU... | 0 |
math | grade-8 | identify-linear-and-nonlinear-functions-graphs-and-equations | false | true | The graph shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABhl0lEQVR4nO3df3RU9b3v/9f8yu+ECUlIYjABRKjBBEXRgqB4sOrR1hZai+23tZ5v23PbW/trnXPu6vestuue1uu3a53as2q1t7fn9NTa27V667fWqjRSLAg0VJEIAYLViBASID8mP2cyP/bM7P39IyQSAUl0fxiGPB+r1Mxk5pV39p7Z85qdPTMex3EcAQAAAHCFN9MDAAAAABcTCjYAAADgIgo2AAAA4CIKNoAJN954o5566qmJ008//bSuuOIK2baduaEAAMgyFGw... | [
"linear",
"nonlinear"
] | null | 0 |
math | pre-k | subtraction-sentences-up-to-5-which-model-matches | true | false |
Which picture shows 5 − 4 = 1? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAABKCAYAAACiqlhpAAANlUlEQVR4nO2da3BU53nHf7srrdCN1cVgiwVWgBdssITMRVhxDKKZehxjDBPb0BTSaFKPP3TS4NZuJtNkDBRPP2TsDOOhadpJIlHj9IMvFCUNHoeWi90gFCq0ItiAZCHBLhcLrVZI2pX2dvphL7qwF2n3rI6on9+Mhjln3/Oc588z//c9l/eco1MURbnphQ43DATAryAIQobI0kGhAax5cL8RdDdHFKX5jtZpCcKXj3WzIavdHVooM8Ky/JA7BUHIDAMBuDQEN7x... | 2 |
engineer | grade-8 | laboratory-safety-equipment | true | false | Select the apron. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAPoAAAD6CAYAAACI7Fo9AAAsrElEQVR4nO2deZRdR33nv7+qe+/belGru7W0LcmyLVu2LLMZYgxObAMzHCATQoITZsiQSWbgZIEMjI0XyUkHvMk2yZAJnCELkJwDgeSEDIcAgWM2w3FszGIbhIRk2ZYtW4slWerlbfdW/eaPe+97923d73W/191P+n3Okbr7vXur6tatb9WvfrUBgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiAIgiA... | 3 |
math | algebra-2 | domain-and-range-of-radical-functions | false | true | What is the range of this function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABhZ0lEQVR4nO3df3RU933n/9f81k+QkEDCAgkwhgSMsLGxAwYbB9d248QppK2dnCZxj7ttuvm1PWfbk+1psm2PjzffbZNu0ySbZuuNk55+v9l647g1tkxwjIFADEYGYQn/wDJICNCP0c/5ee+duff7hywZGbAl+34YBp6Pc3ywRnNfeuvemTuvubozE/A8zxMAAAAAXwQLPQAAAABwOaFgAwAAAD6iYAMAAAA+omADmKKhoUH79u2b/Pr48eOaO3euurq6CjgVAADFg4I... | [
"$\\{y \\mid y \\leq-1\\}$",
"$\\{y \\mid y \\geq-1\\}$",
"$\\{y \\mid y \\geq 7\\}$",
"$\\{y \\mid y \\leq 7\\}$"
] | null | 3 |
math | grade-1 | interpret-bar-graphs-ii | false | true | Jen went to a bird refuge and saw some eagles, parrots, ducks, and penguins. She made a bar graph of the birds at the refuge: Which bird did she see more of, parrots or penguins? | "iVBORw0KGgoAAAANSUhEUgAAAlMAAAFfCAYAAABqa0kOAACXdElEQVR4nOzdd5xU1f3/8deUO312tu+yLL1IUUBQUREEFLHEEiVqLEGjxvyMscVEY+JXTUzsEVFiYiUFu4I1tihgAwVpUqTJwrILbJvZaffOvXfm98csAxsFWZbdGeDzfDx4uHPn3rmfOwzOe8859xxLKpVKIYQQQggh9oo12wUIIYQQQuzPJEwJIYQQQrSDhCkhhBBCiHaQMCWEEEII0Q4SpoQQQggh2kHClBBCCCFEO0iYEkIIIYRoBwlTQgghhBDtIGFKCCGEEKI... | [
" penguins",
" parrots"
] | null | 0 |
math | grade-6 | similar-and-congruent-figures | false | true | How are these figures related? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAB4CAYAAADIUIXCAAAdAklEQVR4nO3de1jUdd7/8efMAIIoCp6QRFTIXI8llrpKZmqZWOIB8nDb3q6bnaysrUvXfqWmlnZ76GytabbWWpZtWd6WrafVVto8LCqE6yGcUUcUBVZwYICZ+w/E7Fe6qTPzHWZej+viHy/m+3kxXl7Xyw/v+XxMbrfbjYiIiIiIeITZ6AAiIiIiIoFEBVtERERExINUsEVEREREPEgFW0RERETEg1SwRUREREQ8SAVbRERERMSDVLBFRERERDxIBVtERERExINUsEV... | [
"neither similar nor congruent",
"similar but not congruent",
"congruent"
] | null | 2 |
math | algebra-1 | special-right-triangles | false | true | Find q. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC7CAYAAABfLOnYAAAdYklEQVR4nO3de3Bc5Z3m8ef0XffWvQ34iikTstwSLnal4ksyZTMk4CQLjolrs3ZgTCCzMbOwBZuqXUzNjte1uU2qklDIeK0iY8aLxTreMrWYJGCMyZBazD2JHRvZloFpSZa6W5LV13PO/tGSjG1JVkst9e37qUqVJZ0+5438z+OX33kfw7ZtWwAAAACywpHrBQAAAADFhIANAAAAZBEBGwAAAMgiAjYAAACQRQRsAAAAIIsI2AAAAEAWEbABAACALCJgAwAAAFlEwC5... | [
"$9 \\sqrt{2}$ inches",
"18 inches",
"$3 \\sqrt{2}$ inches",
"$9 \\sqrt{3}$ inches"
] | null | 0 |
math | algebra-2 | domain-and-range-of-radical-functions | false | true | What is the range of this function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABzhUlEQVR4nO3deXxU9b0//teZNftCAkkIJOxoIGETFATFYtWq1YJtsb11ae16q7a9v7bX29t6u3ipt63tba/2Wluv6P32+7W1RVvBQFEQaKgsEQIJCCFAFiDLJDOTWc/++yMmJawZOJ+cGfJ6Ph592BnmvOadc2Y+857PnEUyTdMEERERERFZwmF3AUREREREVxI22EREREREFmKDTURERERkITbYRDRIaWkptm/fPnD72LFjGD16NJqbm22sioiIKHWwwSaiQaqqqlB... | [
"$\\{y \\mid y \\leq 6\\}$",
"$\\{y \\mid y \\leq-3\\}$",
"$\\{y \\mid y \\leq 3\\}$",
"$\\{y \\mid y \\leq 5\\}$"
] | null | 0 |
math | grade-4 | transportation-schedules | false | true | Look at the following schedule: Ashley is at the movie theater at 10:30 A.M. How soon can she get to the post office? | "iVBORw0KGgoAAAANSUhEUgAAAZ8AAADjCAYAAABadRmaAACH20lEQVR4nOydd1RUV/ewn6H3oqJGUEA0gKIGRUHBilhRUBQVNNhj7NEYjCaaqFGTaHwTjbEkESsgdrGBhYhRRAR7RUWNsSNFFClzvz94HR1nBgYLyfv7zrPWXYt7zj777HNm37vvKfci2954r4RAIBAIBBWIHkDrr7z/aTsEAoFA8P8Jf3z1Jzr/tBECgUAg+P8PEXwEAoFAUOGI4CMQCASCCkcEH4FAIBBUOCL4CAQCgaDCEcFHIBAIBBWOCD4CgUAgqHBE8BFUKA6... | [
"11:00 A.M.",
"1:00 P.M.",
"2:30 P.M.",
"1:30 P.M."
] | null | 2 |
math | algebra-1 | interpret-the-slope-and-y-intercept-of-a-linear-function | false | true | On the first day of school, Alexis decides to start doing sit-ups during her morning workout routine. Each day, she does more sit-ups than the day before. This situation can be modeled as a linear relationship. What does the slope of the line tell you about the situation? | "iVBORw0KGgoAAAANSUhEUgAAAioAAAI0CAYAAAAz7AJYAAB3wklEQVR4nO3deXxU5cH28d/MZCaZJJAgYQmERZYAQYKIgsii1tZaUSqbQEVBBcXdurS+3Z7HjdpaXBA3ioDWVhCDWxGptQpKKyJbIEEISgg7CWvW2c79/pGSx5gASSA5M8n1/Xz8I2fOzLnmMGaunPvc5ziMMQYRERGRMOS0O4CIiIjIiaioiIiISNhSUREREZGw1eiLyrBhw3jnnXcqfn7vvffo1asXlmXZF0pERERqpNEXlfT0dLKysip+nj59Og8//DBOZ6N/6yI... | [
"Alexis does 8 sit-ups on the first day of school.",
"Each day, Alexis does 4 more sit-ups than the day before.",
"Alexis does 32 sit-ups 24 days after school starts.",
"Each day, Alexis does 1 more sit-up than the day before."
] | null | 3 |
math | grade-1 | which-table-is-correct | true | true | Jackson went for a walk outside and saw:He decided to count how many of each there were, so he made a table of the animals he saw. Which is his table? | "iVBORw0KGgoAAAANSUhEUgAAAS0AAADJCAYAAAB2QWTOAAAp6ElEQVR4nO3deXzU9Z348dfc95lkchISIch9iNIi4FFBEGsVXevB1vVRakFbbWnVrW5/0vXq1tbabu2lu9pVq9atYMF2a4v1QNGigoBcIQnknBwzmSNzn78/pgNErpDMJHN8no9H/2jTfOYzQ/LO5/v9vg/J9773vSSCIAh5Qg6wbt26sd6HIAjCkEjHegOCIAhnQgQtQRDyighagiDkFRG0BEHIKyJoCYKQV0TQEgQhr4igJQhCXhFBSxCEvCKCliAIeUUELUEQ8sq... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAmQAAADJCAYAAACNDC6lAABYpElEQVR4nO3dd3iUZfr//ff0TEsyk14IHelFBaUJaiiCDV1FZfXns+iiu8sqrq5lXbC377K4a13cdV3FCljAuoAgICpNirSQBEjvmUmm1+ePMVEWECGTMsn5Og4ODzLJdV/3BGfOue7rPj+KBx54IIwQQsSIBx54oL2nIIQQUacGWLBgQXvPQwghfhYpyIQQnZGyvScghBBCCNHVSUEmhBBCCNHOpCATQgghhGhnUpAJIYQQQrQzKciEEEIIIdqZFGRCCCGEEO1... | 1 |
math | pre-k | what-comes-next | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD1CAYAAAAlI4EUAAAbbElEQVR4nO3dXYxk9Z3e8eecU29dU3RPNzb0jDE2huCAiQzIrBdj1gK/apE2F3gjK7uyFSVRXpSryLmKrVVi+9Z749V6JaNEaL0ym8CFFTsWSSYCDwwK7MzYCjMYz3jsmaG7YZjq7pnuejmve1FdXdP0W53qOm//+n4kyxJdXeffP54+PH3qX3WsKIoiAQAAADCCnfUCAAAAAIwPBR8AAAAwCAUfAAAAMAgFHwAAADAIBR8AAAAwCAUfAAAAMAgFHwAAADAIBR8AAAA... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAAD1CAYAAACRDCAyAAAhFElEQVR4nO3dXYwc15ne8aeq+muarZnhyCaHlEyvLEaOaAWmBWm9siUblm1ZiAHnQk4gJMEaiyTI7iJXG+dqbQSJvcid9saBFWCNLIzsgkpWuhB2N4I2USBpJBmhQtKLJSXLQ0vmx3Akkj0z5Ez3dH3motkzHM4Hu3q6qrpO/X+ALqTuqTrz8mWpnz6nTllRFEUCAAAAYATLsrIewkiysx4AAAAAACSN4AMAAADAeAQfAAAAAMYj+AAAAAAwHsEHAAAAgPEIPgA... | 1 |
math | kindergarten | fewer-and-more-compare-by-matching | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAYAAAACGCAYAAADU6V0WAAAnhUlEQVR4nO3daZAe933Y+e+/++nnvq+5njmAwUkAPERRlEzRtg7KVslK5BzlWMkm66RsV7myW062tvZI7aukUpU32c0bp+KU46yr4thbrsSRZMuxLMk6SUIUSZC4gQEw9/Xc9/P08d8XAwwJEhRhzkzPEPP7vAExeObpfr4Nzg/d/XQ/Smut14ZwswstFxyNEEKIR1BAQcKE41EYCYJaG2h9vrnfqyWEEMJPzyYhcKO79ZuxIJyMbU0HIYQQj56WC9c6sDqE610... | 1 |
math | grade-1 | addition-sentences-up-to-10-what-does-the-model-show | false | true | Which addition sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABUCAYAAAC4PkCPAAAQWElEQVR4nO3dbYwd113H8d+Zh/u4d58cPyZKbSd10sixQ0NfJEGFFKlKUFqppcC7ViBRKcoboAjeAKJvKl4iEPACCYQSUQQSCAWpouIFiqBpEU7SuEpcO0ld06zt3dje3Xvv3r0PM4cX47XXD7vdXc+cuTvz/UhXG93cO+f8NNKdv8/MOcdYa60AAAAApMLLuwMAAABAkVBgAwAAACmiwAYAAABSRIENAAAApIgCGwAAAEgRBTYAAACQIgpsAAAAIEUU2AAAAECKKLA... | [
"7+1=8",
"6+1=7"
] | null | 1 |
math | grade-8 | transversals-of-parallel-lines-name-angle-pairs | false | true | \line{MO} and \line{PR} are parallel lines. Which angles are vertical angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADSCAYAAABw17dKAAAg/ElEQVR4nO3df3DT9eHH8VdaaM1QS9BqS4kF6aSWX8GWtszuaFVcOrcVuKm1eqN453kdaIM3HO6uyspUdO4MOtgPPQl3IOLc2p56xQ0xDMXUI1AUq7jK1VamLJO0RYgE0n7/4EsPBgUhaT9N8nzc5U7yDu/3ix6f49WP7/enpt7e3l4BAAAAiIgEowMAAAAAsYSCDQAAAEQQBRsAAACIIAo2AAAAEEFDvmC7XC6tWLFiQNd44YUXlJSUpCNHjgzoOgAAAIh9Q75g22w... | [
"\\angle{RQS} and \\angle{MNL}",
"\\angle{RQS} and \\angle{PQS}",
"\\angle{RQS} and \\angle{PQN}",
"\\angle{RQS} and \\angle{RQN}"
] | null | 2 |
math | pre-k | count-scattered-shapes-up-to-5 | false | true | How many hearts are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAC0CAYAAADhJ1jdAAAjW0lEQVR4nO3dZ2Bc1YH28WeapkkadatbzVW2XLBNAgbbYHpYwDSHJAQIbYEADi8L7Kbtu0neJLtsyGISQgjZBWcDgcACISRgILSFADYuuBcZWbZsS1bvGs28H4wJBhdpNDPnzuj/+yiNz3nkEea5d849xxYOh8MCAAAAkBTspgMAAAAAiB4KPgAAAJBEKPgAAABAEqHgAwAAAEmEgg8AAAAkEQo+AAAAkEQo+AAAAEASoeADAAAASYSCDwAAACQRCj4AAACQRCj4AAA... | [
"3",
"2",
"5",
"1"
] | null | 0 |
math | algebra-2 | classify-variation | true | false | What does this equation show? Assume k is a non-zero constant. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdsAAAA2CAYAAACP1zPcAAAPCklEQVR4nO3de1CU1f8H8PcDiC53BBUXJE3NG4p4AUI0oTQTfjqpeEkbKRUMbXQGVFTylpLjaJljjAY5po5CmgmFN3LwhrIJ4QVvEeC9ABVc3UUQPb8/iP26rbC7wIrp+zXjTJx9zjmfs/Pke5/zPIuSEEL8XQn8qQbuPwaqBIiIiKgBLCTA1hzobAW0sQSkvyuE+E3Z1GURERG9nHzsAIs8dfUPbS2BLtbVSUxERET1d/8xcFkF/FUJ/KEGzJRV1S8waImIiBq... | 0 |
math | grade-3 | compare-fractions-using-models | false | true | "iVBORw0KGgoAAAANSUhEUgAAAtUAAAC5CAYAAADnGsNjAAAw9klEQVR4nO3dd3gU1f7H8feG9EZ6SKEXA6h0DL1LFQVFaYqIFEVEFAU7XEX5yb2ieBUbKMLFIAgWFKOgIL2FJiVAqKGGkAKB1D2/PyIrIYWEBYL4eT0Pj9nZmTPfMzsmnz17ZtZijDGIiIiIiMgVcyjtAkRERERE/u4UqkVERERE7KRQLSIiIiJiJ4VqERERERE7KVSLiIiIiNhJoVpERERExE4K1SIiIiIidlKoFhERERGxk0K1iIiIiIidFKpFREREROykUC0iIiI... | [
"=",
"<",
">"
] | null | 2 | |
math | pre-k | tall-and-short | true | false |
Which lamp is shorter? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAGoAAADyCAYAAAClFFC5AAALY0lEQVR4nO3dXXBU5RnA8f85Z3fztVlAQmJC8AsiZLV8SCEpY+0wlSgqViDOaL2BXFS9oXhbp+1M2xsGLpxOZxy8AHpR60VwOnhhB9uOTtUJQUTTmQ0JBARCSEhCwmbztdmzpxdLMCiJ+djdc57w/G4gyeZ9n+Q/Z/fsyQYMx3GczjicG4IBGxIOygN8BhRaUJEPJQEwOkcdpzHq9lhqKlUh8J0dSr1RGoCVBamKyn0DNrQMwtU4tA6BGU2kPqCRvKXQSjUBiNl... | 1 |
math | grade-8 | identify-similar-triangles | false | true | Are these shapes similar? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADqCAYAAACY/jKKAABNS0lEQVR4nO3dd3iT9frH8XeS7r3Z0ELZw4UcEQVUUJYeKTI9iIAoCCIeFyjjsARBERRFVEBlq0yriDhAf6KiiBZbQGQKFGgp3TNtfn+EBmqZUnja5PO6rl5t1pM7KPSTb+7n/ppsNpsNEREREREpE2ajCxARERERcSYK2CIiIiIiZUgBW0RERESkDLlkwJ47dy7BwcFs2rTJ6FJERERExMm4XMDOzMxk0aJFDB8+nG3bthldjoiIiIg4GTejC7japk2bxpAhQ/Dy8mL... | [
"no",
"yes"
] | null | 0 |
math | pre-k | circles | true | false | Which shape is a circle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACbCAYAAACao4KyAAAMCklEQVR4nO2daWxcVxWAv3vf2OOMx1sWJ05xmj20BaoWaBoCFFoKpYWKSlUlhNi3IlQQfxCiEkJIIPEHIVYhsQgQRbQSKgIBalkFTWmhSUGl1HGSullsxzF2bM/YM+N59/Lj2aIqBTRvX84njSzLmXnPvl/OOfe98+5V1lo73YITy7DkQtsiCIEpKehzYF8FtnaDmm5a++hi0qcl5JmD/VAaX/a+GemGA72ehYIQlCUXxuow1YLjy6AX294PRDIhTPoczymAmgv... | 0 |
math | grade-3 | multiplication-input-output-tables-find-the-rule | false | true | What is the rule for this input/output table? | "iVBORw0KGgoAAAANSUhEUgAAAFgAAAB/CAYAAABrPAW6AAALCUlEQVR4nO2da0yUVx6HnwFmuMgochtF1GGVVQq1mqpULbp4Ka5IbE3Net3WVu1FY4nUWqHLFloSSyNdPjRuRYklovaSpvUuWaWmZXdN2nRbjZoWqYpcHC5VYIS5MO9+wBlLJVmQcxDc8yR8OTP8f38eXs68875nDrqLy69qDAAitgVT/Xrj/W6jR4wrHonX/W7iQUcJlowSLBklWDJKsGSUYMkowZJRgiWjBEtGCZaMT2++OWJDCIZIPZdfrxXVjxC8/HSEPj2EgBg... | [
"× 5",
"× 3",
"× 10",
"× 2"
] | null | 1 |
math | kindergarten | represent-numbers-with-shapes-up-to-3 | true | false | Which group has 2 squares? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAC0UlEQVR4nO3dO24VWRRA0fOePwG/zhr1AIABEDAkj4kpITEAms5xpzZYwvipOiihtoTEL6m3pbWiKt3kBFsnutLdLcuyXN7O/HMzc32YuVsGjs7pbubxycyzBzNPz2d2l5+X5c3V1mPBz3v1ZOb0/c3689f5zIuHa9VwbK4PM+8+zXy4nfn7ZmZ/dbceiJZj9vhkbXRm5uNhZn+4dwDH7GujX5aZ/bajwO8RLknCJUm4JAmXJOGSJFyShEuScEkSLknCJUm4JAm... | 0 |
math | pre-k | cones | true | false | Which shape is a cone? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAWM0lEQVR4nO2dTXAU13bH//d2t2Y0GiFpJL4lATHIBa9gKLsq4IXDQ4k3uGwvbN4KyAaXUxWbV7y8bBKTDa7KInE9nu0sYuxFwLvYC+PAikDAC7AXLiRXmbIkPxAaJB5oRiM0n5rue7O40z0aaST00Z8z97fR0GpuH8399+1zT597LuGc80ezwEgOmDEAnUMi8R0qAVoVYFcE2NgEkEdFzr9/6rVZEsnyObAOUIdz4h+bm4DnW4SqJRK/MWMAP2eBiVlgKAfQp7r... | 2 |
math | algebra-1 | identify-linear-and-exponential-functions-from-tables | false | true | Is this function linear or exponential? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEqCAYAAAAvYSeKAAAdAklEQVR4nO3de1SVZf738Q+IIOIBDXUzMA4oS7alljgx2PzQ1DxkB+cZlGoaiBaeD1njD8KWBVNpwbZfKq2gs3Z4bEJXThaMknYgG9A1U6KinTTNRKOUcGub5PD80frxDKMDW7puNlver7VaK6/74r6+/Pdmr3vv7TPvvasa5SWWjviLHim/xdNjXJQnx3zk6REAAADQjnw9PQAAAABwKSGwAQAAAIMIbAAAAMAgAhsAAAAwiMAGAAAADCKwAQAAAIMIbAAAAMAgAhs... | [
"linear",
"exponential"
] | null | 0 |
math | grade-6 | which-is-the-better-coupon | true | false | The original price of a nightstand is $69.80. Which coupon is a better deal? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAASYAAAC8CAYAAADVTgNLAAAs1ElEQVR4nO2dd3hUVfrHP3f6THoCoYUiBARpigJBlCY2XDuurmVX3V1XXXvbtbu66hb7YtnyW11dy1oRxa6gFEFRCCCIoQdpCYTUydT7++NkMjOZmWTu9CHn8zzzZObee9575mbu957znve8R1FVVd3thI0t0OgBt4pEIpGkFIMCeXoYaoNeJlB2O1T1q4Z0V0sikUgEE/PBUNUiPvQxwaE5QrUkEokklTR6YEMz7HLCDy2ga3CLHVKUJBJJusjTCw0CaPKAzhO... | 1 |
math | grade-3 | shapes-of-everyday-objects | true | false | Which is shaped like a sphere? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIUAAACFCAYAAAB12js8AAAwTElEQVR4nO29eZhcd3nn+zlrndqr9029SL1IrX2xvIItL9jGgIFAwOHOEJLnMiHJZMKFSe6dMENmSCZ5MkOSyeQhhEu4ISSACSQ2GBsMtpFtLFvWYi0tqVf13l291L6dOuv9o3pVt2R5a7VMf56nnu46deqs33p/7+/9vb/3CK7rulED+vOQscFy2eAXDFmAoATtPqhRQYgWXffl9LU+rA3WCzeFQO7Ll97UqbDVX1LMBr9YZGzoycGkAb15ENNW6YMNQfziEpR... | 0 |
science | grade-5 | describe-classify-and-compare-kingdoms | false | true | This organism is Asimina triloba. It is a member of the plant kingdom.
Asimina triloba is commonly called the pawpaw. Pawpaw trees grow in the southeastern part of the United States. They have large, sweet fruit. The fruit is sometimes called a prairie banana. Is Asimina triloba made up of many cells? | "iVBORw0KGgoAAAANSUhEUgAAAOgAAADUCAYAAACWEW+uAAEAAElEQVR4nOz92Y9tWX7fiX1+a9h7nymGG3GHvDfHqqzMGlhFVhWryOIgSpQokrIgN1qWu+WGLKFtwEbrH/CLX/zgBwuWBz4YsIEGLMAGhO6GpWZDDagbliyKgyRWsYo1ZVblnHeO+Ux77zX6Ye1zIm5WZrKKrGbWg1Yi8kTEjTjnxN7rt37T9/v9yd//+38/8+/Xv1//fn3o+of/8B9+JK9rAP7e3/6naDPl6Djw1a+9yx99ref+fWjbmhAsWTzNSKPoIUduHNR89nP... | [
"yes",
"no"
] | null | 0 |
math | kindergarten | represent-numbers-up-to-20 | true | false |
Which picture shows 8 squares? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAjgAAABcCAYAAABjj8+TAAADH0lEQVR4nO3avU4UURzG4f8ssAV+VKix0E60svUqvAGvw8vwOrwAvQtKKvyobMRgBUoisjkWExIr4urMrPPmeRrYbHLmvFS/TOhaa+34ourjedXZquqyFQDArGx3Vbe2qh7tVt1bVnXHP1o7ON30tQAAhvHsdtX2h/P+w/1l1eMbff0AAMzJ2arq3feqzxdV78+rFqeX/RfiBgCYq1tbfctUVX1bVS1Wv30BADBXVy3zs1UtNnsVAIDhCRwAII7AAQDiCBwAII7... | 2 |
science | grade-5 | compare-properties-of-objects | false | true | Which property do these four objects have in common? Select the best answer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADQCAYAAAByQhWRAAEAAElEQVR4nOz9eZhk13neCf7OufuNPTJyq6wdhcJOAiS4ryJFiqIsa7Uty5K8tJe23DPd9njtmcfTnh6Pp+223LItS7YsW1LLEiVKI4oSCVLcd5BYiB2F2qtyz4x9ufu9Z/44UQWAACmRBFBY7u958smqyIh7T0TcjHzPd97vPUIppQCiKGJ7e5vxeEyWZZSUXGtM06Rer7O6uorrus/rucrrv+TFRnn9l7ySKa//klcyz8X1L5RSKgxDzp07x5EjR3BdF8uynuOhlpR... | [
"translucent",
"stretchy",
"fuzzy"
] | null | 2 |
math | grade-7 | simplify-expressions-by-combining-like-terms-with-algebra-tiles | false | true | These tiles represent the expression 2+8x+4. Which expression is equivalent to 2+8x+4? | "iVBORw0KGgoAAAANSUhEUgAAAWoAAABoCAYAAADYZ7pcAAAG9UlEQVR4nO3cS2wUdQDH8d/sbgX7oEDtSmkRgRAEfISiknAwRiXxcTK9cDB40IMJEk3EC8ELB5QbFw4kys0oxsaTmlC5YJQETfGRFk0t2RX6sC2plnYp0pnxgEIfS83uzs78Z/7fT9IDe5jftiS/TObxc3zf9wUAMFYq6i8AAFgcRQ0AhqOoAcBwFDUAGI6iBgDDUdQAYDiKGgAMR1EDgOEyUX8BACjGHemUP3Uh8OM6dZuVznZEnlfSMZL4ZmL3aJeGChcDP25L7Xq... | [
"x+14",
"12x+2",
"10x+4",
"8x+6"
] | null | 3 |
math | grade-8 | apply-addition-subtraction-multiplication-and-division-rules | false | true | The number line shows an unknown number, y. Is 5y–1 positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGk0lEQVR4nO3dXWhU+R3G8efMy0k2L5tEjSXQpNntvrBBGsQ4JiJbL1skLSP2QmhFNq2gBBf2xivbi4rgRaEULUrtjcVU2DJSbYVejt4kE6PMOk1KLSQmlG6NVnedJJN5O71IZtZg3nRnzn9O/H5uZs7hXDxw5uLhx++csRzHcQQAHjIwMCDLsnTw4EHTUeAS7jkALwmYDgAAL2tqasp0BLiMew7AS9ZdsDOZjEZGRjQ0NKStW7cyRQCAl5Cb+o1y09eVT8ZlBRpl1XU... | [
"positive",
"negative"
] | null | 1 |
math | algebra-1 | surface-area-and-volume-changes-in-scale | false | true | Look at this cone: If the radius is tripled, then which of the following statements about its volume will be true? | "iVBORw0KGgoAAAANSUhEUgAAAKkAAACACAYAAABwdknRAAA/pklEQVR4nO2deYAV1Zn2f+dU3dt706AssggCKiqLJi6obBqNEhMdjdEkGjWbcaKJOk4cJxMTR81iFkOimWxO1BgzLonGPcYgqGjiDoIKbjQqiICydTd976065/vjLHXqdqOYAA1+/cLtW8up5VY99b7Pu5xTQmut6ZVe2YZF9vQJ9EqvvJv0grRXtnnpMZAuXryYAw88kJqaGs4+++yeOo1e2Q5ks4J01apVnHzyyZx11lnv2vbCCy9kypQprF+/np/85CcMHTqUJ55... | [
"The ratio of the new volume to the old volume will be 9:1.",
"The ratio of the new volume to the old volume will be 27:1.",
"The ratio of the new volume to the old volume will be 3:1.",
"The ratio of the new volume to the old volume will be 4:1."
] | null | 0 |
math | kindergarten | compare-sides-and-corners | true | false | Which shape has more corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALgAAAC4CAYAAABQMybHAAAEJ0lEQVR4nO3av24cVRjG4W/W9kqYBDoQDR0gIVHnxlLlGrgqSrepklAlBaa1nY2y9uZQLBP+KYpxPDsz7zxPNaORjt7ip1NN11pr59uqXzdVl7uqm1YwW8dd1cOjqu9Oq75eV3Xnb1s7uxh7Fty/R19UHb/Y7F++WVf98Pm+fpiry13Vs9dVv22rnm+qVhc3+w/iJsHDo33LVVVXu6rV7m8fIEHf8nWrWo07BYYlcKIJnGgCJ5rAiSZwogmcaAInmsCJJnCiCZx... | 0 |
science | grade-2 | identify-mammals-birds-fish-reptiles-and-amphibians | true | true | Birds have feathers, two wings, and a beak. A red-tailed hawk is an example of a bird. Select the bird below. | "iVBORw0KGgoAAAANSUhEUgAAAtMAAADMCAYAAACx6y9WAAEAAElEQVR4nOydebwcZZm2r3ep6u6znyQnK1lIQthCWARBEGQRBUQUBBRkRMFlXEBABJRRQWbUEQRHcANUkGVEZhDBZVgVIRFZxbBDQjayn737dHfVu3x/vNWdBAIEyAz4WRe/8yOnl6rqqu4+Tz11P/ctvPfeGINzjpycnJycnJycnJycV0ZKidYakaapzwvpnJycnJycnJycnFeHlBKZF9I5OTk5OTk5OTk5rx7nHPKN3oicnJycnJycnJycv1fyYjonJycnJycnJyf... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA4IAAADMCAYAAAAmsx3gAAEAAElEQVR4nOy9d7xlVX3+/15r7XbqbXOnMsMwQxGkC2pEUTQasRALaEAToyYmmmjQqKkmJiSmqDGxxIIaUTExGqMSNdaIwIgIKKH3gem331N2XeX3xzr3wChlEJLo73ue1+u+4N5zzt77rL3XnvXsz/N5HuGcc1prrLWMMMIII4wwwggjjDDCCA8OKSVBEHBlB45oQEv9Xx/RCCPcN7oGbu7DnhImAnjiuP+7HJHAEUYYYYQRRhhhhBFGeGiw1qK1HpHAEX7q0VL... | 1 |
math | calculus | domain-and-range | false | true | What is the domain of this function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABlt0lEQVR4nO3dfXxU9Z33//dkZnKfkJBAEoIBEaUFCYiiglB1sWpra4utF/berrW1W6t1t92fu1fb3e3l2l67bd1atV1bt2qvPh696lW1KzZSVBQKVSRKIOANRggJITeTTJK5P3Nzfn/QpASCTOB8M5nk9Xw8fPiYIfOeT86ZOfOekzNnXLZt2wIAAADgiJxMDwAAAABMJhRsAAAAwEEUbAAAAMBBFGwAI9TW1mrbtm3Dl/fv368ZM2aotbU1g1MBAJA9KNgARqivr1d... | [
"$\\{x \\mid x \\geq 0\\}$",
"$\\{x \\mid x>1\\}$",
"$\\{x \\mid x>0\\}$",
"all real numbers"
] | null | 3 |
science | grade-3 | identify-minerals-using-properties | true | false | Select the one substance that is not a mineral. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEYCAYAAADPtGNgAACVL0lEQVR4nOz92ZJkWZaeiX1rD2fSyUYfY47IiJwqs1BVALoa1aweADSFLS0N4QVFeNGXfBQ+Ah+AdxSK8IIXbBLdDaBIoAsoFLrGrMzIjIzRJ3O3Uccz7IkXW83d3CMiKwGUZzoC9ruYqJva0aNHj+5/r7XXXutf8sfzlD4YwURzjWtc498BywA/XcOjAXYN/N5Ofl5dE+sa1/j3w0TDB6P8/1V49ry6JtY1rvHvj0seufTsOfXruZRrXOObj2tyXeMaLwnX5Lr... | 1 |
engineer | grade-7 | identify-control-and-experimental-groups | false | true | In this experiment, which were part of an experimental group? The passage below describes an experiment. Tanner's young son drew all over the living room wall with crayons! Tanner wanted to find a way to remove the crayon markings. Based on what he read online, he decided to see if scrubbing a wall with baking soda cou... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAE3CAYAAADBi3hdAADh3klEQVR4nOz9Sa8k2ZLnif3knKOD2Z3cw2N48abKoSqzsquYWWiATdSCAJEN9IbkJ2mA4JrcElzWF6jvQIJ77rjqRXeB3WhWd1cOL1++92L06Q5mpnoG4UKOquk1t3uvR7hHhEekS8DD7NqgqqaD6F9E/vIX+a//6/9aeW/v7b29tx+R/bt/9+9+kPUGgP/r//n/dO+HVO/3qSJy7/ullG+4Wd9s+Tz0/hvaQ+tf7p/ps8vvHHt+1/vTsu7a58e+v/zoXcs/XJ6I2Ge... | [
"the sections of wall scrubbed with water and baking soda",
"the sections of wall scrubbed with water only"
] | null | 0 |
math | grade-7 | perimeter-and-area-changes-in-scale | false | true | Look at this square: If the side lengths are tripled, then which of the following statements about its area will be true? | "iVBORw0KGgoAAAANSUhEUgAAABcAAAAOCAYAAADE84fzAAACAUlEQVR4nLXTPWjqcBQF8KMIQpYaq/gFOuggOLgpgt2kDkLELIKDUuzmJF38mJ11dRBdpOgSKXHTwUVwKR3aQdAsTrWiHYSGiNw3lBef2IKP93rHw+HHzf0TDRERfmi0PwUDgJaIUC6X4XA4YDQaUSwW/wms1Wq4vb39xNvtNgRBwOPjI6bTKURRRLfb/R+LQzscDnFzcwOLxQKz2YxcLneCbzYbMAyD19dXNbu7u0M+n4csy0ilUnC5XAiHw5Ak6YBrtcdnZxgGs9n... | [
"The ratio of the new area to the old area will be 1:4.",
"The ratio of the new area to the old area will be 16:1.",
"The ratio of the new area to the old area will be 9:1.",
"The ratio of the new area to the old area will be 3:1."
] | null | 2 |
math | kindergarten | count-to-100 | false | true | How many dots are there? | "iVBORw0KGgoAAAANSUhEUgAAAVQAAAFUCAYAAAB7ksS1AAAhAElEQVR4nO3dzU8bZxvv8Z9jjz3jF142ppbioihquorUSiiLyLuSXTjr/ImsT9mR7BCLKBILVkWqVBKqUm/AeBiPmXF9FsZWyAwwY27y+D76fpeWsT/yE12POwzXXRiPx2MREdGDe/K/BhAR/f8SA5WIyFAMVCIiQ5Xm+aGjg1Ddk0if/xjeePzHnytaazv66RfXCA4HDhw4bHIUsv5SKgzG+vTB197v/RuPV9yiJGkYjm483tlqaOO3utxqITcKBw4cOGx0ZBqoh/u... | [
"87",
"97",
"96"
] | null | 1 |
math | grade-7 | rotational-symmetry-amount-of-rotation | false | true | This image has rotational symmetry. What is the smallest fraction of a full turn you need to rotate the image for it to look the same? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAABBOElEQVR4nO2dd3gc5bX/v2dmu3rZVbWtLldcKAYbCB3TwQ7GlBCSCyGNYjuBkHCJc29Iwi8BJ6TcS8pNg8Q2CSkQQkvAGNtg3C1ZVrF679peZub8/ljJSPaW2dWuJOP9PI8f0O47856ZnTPve973FCBBggQJEiRIkCBBggQJEiRIkCBBggQJEiRIkCBBggQJEiRIkCBBggQJEiRIkCBBggQJEiRIkCBBggQJEiRIkCBBggQJEiRIkCBBggQJEsxwuPM50+PbjxVPVX8... | [
"1\n10\n of a full turn",
"1\n11\n of a full turn",
"1\n9\n of a full turn",
"1\n4\n of a full turn"
] | null | 2 |
math | grade-8 | nets-of-three-dimensional-figures | true | true | Which figure will this net make? | "iVBORw0KGgoAAAANSUhEUgAAAM0AAACuCAYAAACV3ImdAAAMz0lEQVR4nO3dQWgbVx4G8M/LksgXaXxIIMGOpSQnO8GSfRLyVhIOLCRu48N2ISFFDqVLvKWNsofGycXypW56aMWWJWFLQbBmF9oelNY+FGo8bmN82kgmZE8lHjtLDrl4Jpc4e8ke1JmMY8nSSDPzNJrvB4WFzeY9L/389P7/9566Xr58+RJE1LDfiJ4AkdfYFhpZltHV1SXkH1mW7foxiOqyJTS5XA7pdNqOv6op6XQauVxO2PjkL12t7mkURUEsFoOqqnjv7e9xvG/... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAACuCAYAAAC7vP8mAAAho0lEQVR4nO3df1RTZ7ov8C/aaqyaHWYda3WBSVp72wt2IDDn9HBDCRy81iUgOKOOdmABx9pKtRLmtIouO4Q5jr/aNUTbqd6iy/RCtVXPMVjoqp163LQw3OktEMbCnZ6xskFPcdqZYUftiB0Z7h9h74nIj4TsZO+dPJ+1uli1Ie9LkYf33c/zPm/U0NDQEAghPouKipJ7CiSEpsg9AUIIUTLJgiTLsoiKipLlH5ZlpfoyCCHkDpIESZvNhoyMDCnealIyMjJgs9l... | 0 |
science | grade-4 | compare-properties-of-materials | true | false | Which would smell the most? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AAAr+0lEQVR4nO2deXxU1fn/3+fe2TLZFwIkgYRdEVFEEEWliOJC3Qi0/VakX231q9VW1J+KoICCCKiIilLR2mKt1VbjvqFWEBDZBGXfIWwhZJ1MZrvL+f0xJCQhmQzIkuW+X6/7SjJz7z3PmXzmnHvOec7ziBXlUvaIhXgVC4tTSoUBmyvhQAiSbXBxUvh1xRKkxekiXoUeseHfvcaR1xVLkBankyr9afLIa8rpMcXComFsp9uApoQ0TcxQCN3vR6usRPf5MPx+dJ8... | 1 |
math | grade-4 | compare-area-and-perimeter-of-two-figures | true | false | Which figure has a greater perimeter? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKwAAAB6CAYAAAAiVrjqAAAPc0lEQVR4nO3dfVBUdd/H8feyrCiBBCN7uzpZDnt5Z9BcCJpeeWNXiDJo3JSCqIEIgoBCYqK3Wmool5mihU/4EJkmOZqV+TTTMI0OzTizTTPBH+ETzSRjkgNosbgjrNvef2y7LonxtMvhnP29/tHd/Z2zX+rDYT2c8/2qrFar9dd2qDOB0QIPrAjCgOGtAn81/MMX/msQqH5ts1q/a5G6LEHo2sSh4H3dZHugGwT//YQtzYIwUBgtcPUeNLTDNRN4tTywvSDCKgx... | 1 |
math | grade-1 | compare-objects-length-and-height | true | false |
Which fish is the longest? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAPsAAAA8CAYAAACgn8yqAAAUtElEQVR4nO2de1hU17mH343IMMBwFQFRkQGieEdFTTBorIiXmlhTtZ7nSRtJrb0mxliTnsTmyTF5cpoabdKkOY2paWMbox49qEFFrEEiCYoC4wVQmAGiAwyiIDMDDir7/LGdDYgaQQwi6/2H2bPW3vubYX7rW+tb31pbkmVZrmyE4nqwXoOrMgKB4AHAVQJdL4jygCA3kCodsnykrqvNEggE95IJ3uBaVK8chLjBYE+lJRAIBN0f6zU4bYeKRjhTDy51V5UCIXS... | 2 |
science | grade-6 | compare-thermal-energy-transfers | false | true | Chad lit the charcoal in his grill to cook two identical salmon. He put one fish on the left half of the grill and one fish on the right half of the grill. This table shows how the temperature of each salmon changed over 6minutes. During this time, thermal energy was transferred from ____ to ____. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAABfCAYAAACdpLOcAAAjX0lEQVR4nO3deXyTZdov8F+SNmmbtmm6KhS1FLuxBOQjUg8gFsYz8HoEC4gsMsLLYq0KOqWiLAfKJk7piByGMywyFngF+yLjKyKK6ItFYPRQpIBMaSFsLUtDmy5pmrRJzh+dVkK3J83Wpr/v59M/mty57+t5nvtKrjy580T0z6nXLCAi6oJ6vBeMkkVl7g6DqEtjHhEJE7u7l7tDEEzs7gCIiIiIiMhxWOATEREREXkQFvhERERERB6EBT4RERERkQdhgU9ERERE5EF... | [
"the surroundings . . . each salmon",
"each salmon . . . the surroundings"
] | null | 0 |
math | grade-8 | apply-addition-and-subtraction-rules | false | true | The number line shows two unknown numbers, a and b. Is a–b positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAI4ElEQVR4nO3dbUxV9wHH8e8B7oMX8EItKFqQ2PlQ6+JURLSuxT02taSl0RddE+fiZmtj4tzSdG/2ZjNtTBe7F9ZIbLLFrkSzBec622bJalGT8SDqbZ3WWicPyhACCHrhPgBnL/DelqmA9XIP99zf59U9h/PiF/7c5Mf//M//GKZpmogksMrKSgzD4Pnnn7c6isSJxjz5aMxFJJGkWR1A5H61tLRYHUHiTGOefDTmIpJIxl2ww+EwDQ0N1NbWkpubq1mESebznpMcvVJ... | [
"negative",
"positive"
] | null | 1 |
math | pre-k | fewer-and-more-compare-in-a-mixed-group | false | true | Are there more rectangles or triangles? | "iVBORw0KGgoAAAANSUhEUgAAAKIAAAA2CAYAAABEBUJOAAADI0lEQVR4nO3du27TUADG8S9NlSampKItFyGSBSWFgShzeBPegJ2FmYGFnY2RJ+ARkNgREgiJhUpI0Evq1LkUxw5D4jRXX47PiY/N95s65bjNJ7v9S21zo9FoBKKEbSV9AUQAh0ia4BBJCxwiaYFDJC1sJ30BOnj36gR/ju1Ezq7WC3j24jCRs3XCOyKAQddN7OyLUyexs3XCOyKARsvAxw+XKN8q4n7l5kbO/HV8iU57gEbL2Mh5uuMdEcCTp+MxWOYAjqO+7zvOCJY... | [
" rectangles",
" triangles"
] | null | 0 |
math | kindergarten | ordinal-numbers-up-to-fifth | false | true | The first picture is a star. Which picture is fourth? first | "iVBORw0KGgoAAAANSUhEUgAAAaUAAABdCAYAAAAFZHluAAAeW0lEQVR4nO2de1TTZ5rHvwlJyIUYEAgIiGBFVLCotSqKlmordVwUHRVW29FWu7XTc2a97czszhzFTme3nfHS3e1Ue4q1tmtHpbWtWFusoq1W0fGCCioqFbmJIJIQQ0Ku+8ePRCKXXMg9z+ccj5q8v/f38j2e9+vzvs/7vCyj0WgEQRAEQXgBbE8PgCAIgiBMkCkRBEEQXoPLTEmmNSKxuA1jSxSQaWmFkCAIgrCOQ6b01V0tNl5X92k2x+/rUN1uQJlcj5fPtzs8QII... | [
"rocket",
"moon",
"star"
] | null | 1 |
math | grade-7 | bases-of-three-dimensional-figures | false | true | Look at this figure: What is the shape of its bases? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADlCAYAAABpqIBfAAAczElEQVR4nO3deXTU9aH+8WdmMsnMkI0hCwxWo0gVxzVxQ0RGQCVaRZBrr/aSW67H2wV6XfprfyxitZTEn+BKvG2ttpCftK6AW7itEFBBDSIBkRBBKCpL2MlClpnJzP0jgIQECOQ7850k79c5nBPGb2Ye4j/PfM7k+1jC4XBYAAAAAAxhNTsAAAAA0JXEHf7iuuuu04cffiin06n4+HglJCS0+HP4MYfDceTr413ncrkUFxfX6nvber6TPeZwOMz8+QAAAACnxHL4IyI... | [
"nonagon",
"triangle",
"heptagon",
"square"
] | null | 1 |
math | kindergarten | times-of-everyday-events | true | false |
Sam is reading a book just before going to sleep. What time is it?
Choose the more likely time. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHQAAABzCAYAAABJnyafAAANA0lEQVR4nO2de3BU1R3Hv3cf2WdeZLPJhkfYBDCEp4AIqAVCpQ4VBpXWAqW24lSobbEStVimgjpqa6Bqp0pnxE4VmDq+KChOa+Xho1WhCBgoBMwSApsNSx4k+8pudk//2GTvXrKv+9hkc3M+f53X73fO7nfOueeee+65DCGEOPzAOQ/QGQS6CSiDCBUDZCuBsXqgKAtgHF2EfNkx0M2iSMGNOYDqrCccsWQB1xnCalMGD51B4IwbaPIDdR5A0dEdzqBiDk6ylWH... | 1 |
math | pre-k | count-sides | true | false | Which shape has 5 sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAADFUlEQVR4nO3csW4cVRiG4W93bSOFBDojRG2oqNNScB0pqKm4oBRcTu4ghB7T2omlGK+GYmWJioKYb2bOPE81R6f4/+LVKWc3TdN0fZ/8fpfcHpOHKfDJznbJi0Ny9Sz56iLZXX+cpjc3c6/FyF5+kZy9uzsdvr5Ivvv8VCF8qttj8vZD8sd98ttdsr95OF2IjKf04nBqKkneH5P98R8X8JQem/prSvbzrsJWCI0KoVEhNCqERoXQqBAaFUKjQmhUCI0KoVEhNCq... | 0 |
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