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 | algebra-1 | model-and-solve-linear-equations-using-algebra-tiles | true | false | Which set of algebra tiles represents the equation
–
2x=
–
6? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANkAAAB6CAYAAAAyNvY2AAAG50lEQVR4nO3dX2hb5x3G8eccWVYTx3Zpa83uao8l3UayreuSFS+53GjZHzJYXUY2elUyejUKZb3b9VYSCLkoBAaDkKuWLd3WwgiFkXWOLdzBOsZIaTOvidxhx04TY8lJpVjn3YV28qdbUx37/HSO334/YCzJOnqOwY/FeaXzU+CccwtN6Z9XpVpLWnMCsAE9gdRfkD63VfpUrxQsNJx7YyXr3QL8ND4g9Zy72r4y0it9oa/dQADrV2tJb69K803pnatSuLLW/gE... | 3 |
science | grade-2 | identify-solids-and-liquids | true | false | Select the liquid. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AABYn0lEQVR4nO39d5hk533fiX5Oqpxjd1fnMHmAQSACCTCACSAgUQIlS1pKa4kS02Ovr9dXkiWt72PrWd+1kr16rL22vL5XtiUuRSXLWuYEggBI5AEwOfR0TpVznTr5/nGqe7pneoABMAM06Po+KHRP9amq95zzrff9he/v9wrP1x1nfxDCEn308ZaiacH5NqzrEJfhvpj7vNgnZB9vF8IS7A+6v7esy8+LfUL28XZik3+Gc/k58e0ZSh99XBt9Uvax59AnZR97Dn1... | 1 |
math | grade-6 | nets-of-three-dimensional-figures | true | true | Which figure will this net make? | "iVBORw0KGgoAAAANSUhEUgAAAM0AAADNCAYAAAAbvPRpAAAEgUlEQVR4nO3dMVIiWxiG4dO33IJuAlIWoDswwpSUNWikayAllcgd6AJIm03oInoSmRHhVt1P7Gk593my+afoOl3ychqmB5uu67oC/Gf/DL0AODVnQy+gD03TDL0E3tV4IVPdTiOYn6XGn0eVO00ppbTTp6GX8L83Xl0PvYReVLfTQN9EAyHRQEg0EBINhEQDIdFASDQQEg2ERAMh0UBINBASDYREAyHRQEg0EBINhEQDIdFASDQQEg2ERAMh0UBINBASDYREAyHRQEg... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAADNCAYAAAA13ILSAAAY6UlEQVR4nO3de1xVZb7H8c8G8YIXMBW1MijBG5SakY1akJqWZaTJaE0jmrfJSojJqVRGHK+VKUpDRz0GZjVQFjrapJWiHWkOOo44AyeMEpxEjTAV3Ibc9vkDYWK0XchmL/by+369eu0X64XP+q3W3l+eZ+31PMtis9lsiMjPZrFYjC5BnMjN6AJERJqyZkYX0Bj0l77p0EBFXJ3pepIKyKZF50NcnSl7kgBZ41ONLuGqF5QyxugSRBrMdD1JERFHUkiKiNihkBQ... | 0 |
math | grade-3 | open-and-closed-shapes | false | true | Is this shape open or closed? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABkCAYAAAC8REciAAAD6klEQVR4nO3du24dZRSG4WXCBXgrhQ8pnRKJCrooEVJaFHEZ0FiYIkT0TmXlDmihc5/Ksii4CHfI2SninRuIhupPE1B8+Oa09/OUUyyt8tXSjGar67quAACAiC/GXgAAANaJwAYAgCCBDQAAQbMP7OXVqr758ai+/emollersdcBAGDDbc35I8c371b1+Odf6+JyWVVVB/u7dXZyXHv3FyNvBgDApprtBXt5taonRy/q4nJZDx/s1cH+bl1cLuvJ0QuXbAAARjPLC/b... | [
"open",
"closed"
] | null | 0 |
math | grade-2 | greatest-and-least-word-problems-up-to-1000 | false | true | Sophia's class recorded how many cans of food each student collected for their canned food drive. Who collected the fewest cans? | "iVBORw0KGgoAAAANSUhEUgAAAY4AAAC9CAYAAACknZrLAABC1UlEQVR4nO3deXxMV//A8c9Mtsm+I2RPEEuJnRJr+6OldkVKNXjUWlG0KE+s5bG3tkqrDS2tfd/SIraI1JKGEmJJgsiimogsMll+f4xcGYmYyY7zfr3yMnPvueeeO+7c75ztXtnE2bVzEQRBEAQNLJ4RgS6A94e+FVwUQRAEobLbtGU5APKKLYYgCILwqhGBQxAEQdCKCByCIAiCVkTgqEAp2Xp8EPkB3rc6k5KtV9HFEQRB0IgIHGXkWEoN/BPrFxkQzqVVIVZpzLU... | [
"Emma",
"Devin",
"Sophia",
"Tammy"
] | null | 3 |
math | grade-4 | multiply-fractions-by-whole-numbers-using-models | true | false | Which model represents the product 4×
3
6
? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAaAAAACOCAYAAAB359yrAAAF6klEQVR4nO3az2qbZxrG4UeOE0SbuFqUlg7p2BRmDJ1F4lW8k/G+4E3o1vQEEnoCkU+gPoX4ALrxnICUTd1uqiy66B9wBA5N61kIuw1qEvPNQjgdD8JQ6TXPh3Nd8OEYw+vXuhe/CNSoqqp69iLip+cRxycRr6oAgOLmGxE3rkT8462I969FNJ79UVXfHGVfC4A3yZ2FiPkfn4+/+eBaxPLb4zoBQGnHJxHf/x7x84uIH55HzB29Gv9AfAC4SDeujFsTEfHbScT... | 0 |
science | grade-2 | identify-living-and-nonliving-things | true | false | Select the living thing. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAADMlElEQVR4nOz92a9sW5beh/1mt9aKdjenu23ebKrLKqpYJGWSIi2VaBuC5QawBAmiBPiZgO0X20/+K0zABmza8AthwzAgQJYI00KJPatIFqtYrKw+q7K5/Wl3F93qZuOHMeeK2OeeLGbm5YMMVBxs7LNjx45YzZhjjvGNb3xD/dpdSj+9gJXhTx5/8vhv5WMb4Nt7eDrAhYX/7rk8r//EcP/k8d/2x8rATy/k/7twfF7/ieH+yeP/Hx7FTsd0fM6+6YVPHs1QSpG... | 0 |
math | grade-6 | identify-polyhedra | false | true | Is this figure a polyhedron? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAARxklEQVR4nO2dfVBTd7rHP9TiuFeaEztzxd07CXD1j4ViE+tqraiAux0trbyoM/W1hOlWbKsStotMxReo4I7Q3kTBqbA7V2hV7O21Rtna9r6USMF19FqCKO4fsoQw00I7Iycu3Tq09tw/4jlVXvNKkrafmfwhJuf8wpff8zy/5/n9nhMhSZLET4QMDwR7AP6grq6Ourq6YA/DP0hhTGtrq5SSkiIBEiClpKRIra2twR6WT4SlIP39/ZLBYFCEEKYKkjBVUP5tNBql/v7... | [
"yes",
"no"
] | null | 0 |
math | algebra-1 | identify-linear-quadratic-and-exponential-functions-from-graphs | false | true | What type of function does this graph show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAETCAYAAAAMFHHvAAAXUklEQVR4nO3df2xd9X038M9NHNv5ATHrnITSKmSixAOrcQT5pU6ooD0SLtyisFaR2u6RiMYfFd1f/QM9/1RIFNRObJpE2qplMLVDU0FblSmZQEKqeaZJdrJeYUTCnEp9bMZDSZwWHPL4VxJ8nj+ye20TJ/G1j33OuX69JMS5159z/FES5bxz/L3fTylJkiQAAIBUrMq6AQAAaCQCNgAApEjABgCAFAnYAACQIgGbOU1MTMTExETWbQAAFI6AzZz6+/ujv78/6zYAAAp... | [
"linear",
"exponential",
"quadratic"
] | null | 1 |
math | grade-5 | range-find-the-missing-number | false | true | Hassan has the following data: If the range is 30, which number could r be? | "iVBORw0KGgoAAAANSUhEUgAAAScAAAAkCAYAAADLufxbAAAHoElEQVR4nO3da1BU5xnA8f8uu+4CAnJZEURuGo2COF7aaOs1BhLrmCZja2vqJbZOps3U6XSasZmmTZw0kxnrtBMz0w9ppmV0NLXaxKSdjBKmKl7GqGiLikEhgIoLcluQJXvf0w+L6ApWkD1nz9Tn941znuU88573ffY97zkHDIqiKAD+ILi9EFRAQQghtGMAjAawjgKTsW+boiiK2wcef1RzE0IIACwmsJrB6A9KYRJC6IfHH7qSM3p80U5FCCHCeXxgDASjnYYQQoQ... | [
"4",
"30"
] | null | 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 | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAADWCAYAAAAD8D2GAAAaAklEQVR4nO3deXhU9aHG8e8s2TcgGxAgCYRVICiigii4tAqyuKHWpdfWvdXb9qooVNFKVerSulRbsbb6uFy1FlwK3GIVUUFcwIAQIOxJIHsI2ZeZOfePgZEkQ5mQ5MyS9/M8PJDfnJnzmwBvzrxnsxiGYRQ3w856qHGCw0BEpEvYLRBng6HRkBoOluImw/iq2t/TEpFQd3o82HfUu7/oFw7DY9xpJCLSFWqcsL0Oipohrx6s1Q73AwobEelqcTZ3tgDUOsHqPOo... | 2 |
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. Lamar noticed that he could make a dome of water on a penny if he added drops of water slowly enough. He wondered if adding soap to the water would allow him to fit more or less water on the penny.
Lamar put equal-s... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAEhCAYAAAAUBJnbAAEAAElEQVR4nOz92ZNk2X3nB37OOXf1JTz2yH2pzMqsDUChABIkCDbY6G6RTZFUj9Q2rdGY2kymh3mQbMzmZcZMf8OM5qXNxkwczbxptLTa1JKNutEjLuACkAQKVUBV1pJ7ZmRExuq7+13POfNw7r3hUSgsXEQUCvEzi7yR7h7u193P/Z7f8v19f+I/+U/+E8uZndmZndnPkP3n//l//lN5XQ/gn/2zf/ZTefEzO7MzO7O/rP2n/+l/+lN7bflTe+UzO7MzO7OfMTsDzDM... | [
"the pennies with soapy water",
"the pennies with pure water"
] | null | 0 |
science | grade-4 | identify-magnets-that-attract-or-repel | false | true | Two magnets are placed as shown. Will these magnets attract or repel each other? | "iVBORw0KGgoAAAANSUhEUgAAAjgAAADoCAYAAADi1J7wAAA4k0lEQVR4nO3deZwcZbn//U9VdVX3dM/09OwzSSArZBEIJJEtJCAoiBAUXABF/emjnkf9HTgcPRw8uO+KB4+gPsddEQRFBQHZVBAISyAEApgFspPMvvR0T+9dVc8fk2CWmWR6pruru+p6v155BQjJ3Jnu6vrWdV/3fSu2bdsIIYQQLpbdkyfbnSPbnceMm9gZG2vvDztjsws464RawjmLmrxNTR5q8hYhVaFprkFIg5CmvP5zkwHHBFXmhxTmhxSn/3piDD6nByCEEEJ... | [
"repel",
"attract"
] | null | 0 |
math | pre-k | represent-numbers-with-shapes-up-to-3 | true | false | Which group has 1 heart? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAI30lEQVR4nO3dP0ybdx7H8Q/ESe3aHFEedBRsyQPCHiJhiaCWbJCVhoksRGKF1RJZqBR0UbdaykokJktUQmVyCyNkC6qyUOkG0/NAZKegO0dRMIHkQL7h4eGuwT7857F/3++Tz2sphPrH96fnrUc2th93lMvl8v5H4B/vgcMz4LQMInF8HUDXNWDwS6D3BtCx/6Fc/vWd6bGIavfNXwDf7+/tb/puAPGgXTWRNIdnQPYI+OMjsPse6Hx3av+A0ZJkXdfsRgGgdAZ... | 1 |
science | grade-3 | use-data-to-describe-world-climates | false | true | Which statement best describes the climate of Rio De Janeiro? Hint: Summers in the Southern Hemisphere occur in December, January, and February. Winters in the Southern Hemisphere occur in June, July, and August. Rio De Janeiro, Brazil, is a city in South America. It is located in the Southern Hemisphere. It has a trop... | "iVBORw0KGgoAAAANSUhEUgAAAtgAAALLCAYAAADDkfUwAAEAAElEQVR4nOzdd3yUdbr//9ek995II4WQQkmhBAKhSBENHSysuqIef+qu38U97tl11T3r8Rxdz+7qupYtnnXFtqIooASCSgtFCC0hBJKQSgolvZdp9++PkBtCAgaZZAa9no+HktxT7mvmvjPzns98ikZRFAUhhBBCCCGESViZuwAhhBBCCCG+TyRgX0VmZiYajQaNRkNSUpK5yxE/QGvXrkWj0ZCQkHDD9+Xj46Oez73/WVlZ4efnx49//GMqKyvV65aXl6vXaWpquqH... | [
"Both the temperature and the amount of precipitation are higher in summer than in winter.",
"Summers have lower temperatures than winters."
] | null | 0 |
math | calculus | determine-continuity-using-graphs | false | true | Is f(x) continuous at x=8? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAABvbklEQVR4nO3deXhU930v/veZVaNdSEISwhJgDDZYEgiLzchLId6wXYPtYOeXxWluWqdJnPS5bW9+aW5+ba7r67Zx06S2m+ZeN7bbpKmJsR2DBcYGAxEGGRkEEhhkAVoQWkaaGc16ljnn98cwsgQIZuB8GS3v1/P4wbOctz46Z+bMZ776nnMkwzAMEBERERGRKSypLoCIiIiIaDJhg01EREREZCI22EREREREJmKDTUSj7NixA7NmzcLatWsBAA888ADeeOONiz5XVVU... | [
"no",
"yes"
] | null | 1 |
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? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAACgCAYAAADq8hJGAAAaKklEQVR4nO3deXBU55nv8e85vbd2QAvaQAghBBgwXoiBgDEYxyaO7SQTjxPb99qeuZVc1yyp8cykZsvciXNvjZPUrZt48FQqGU+Ckzge7wa8QGzAgMHYgJEBIxbt+760ej3n3D+OdGTRrQUQ6pb0fKpcrmqdlg79nv6d933et/tVDMMwEEIIQI33CQghEocEghDCIoEghLBIIAghLBIIQgiLBIIQwiKBIISwSCAIISwSCEIIiwSCEMIigSCEsEggCCEsEghCCIsEghD... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAiAAAAC4CAYAAADaI1cbAAAj6UlEQVR4nO3deXhU933v8feZfbQgCbQhJECA2IwN8UaMHS+xTRK7xM7Sum7jtLbbPk39pL19mrR5uqVNnN5bJ/3jNgm5Nzdp2thJ0zTxDo5tHIMx2AYbMBgwu/Z9X2c/948jCbQAMkjnnBl9Xv/oeUajmR/z+82H75zzPb8xABMREcA0TZpjcHIQ+pKQUDqIyDTxGZDrhaosKAmAgQoQERnWHDXZ0+v0KEQk062fAz6nByEi7nFi0Po5PwArsq1PKyIi06EvCcc... | 1 |
math | kindergarten | one-more-with-pictures-up-to-10 | true | true | Count the snails in this group. Which group has one more than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAA9j0lEQVR4nO3deXhcVd3A8e+dfbLv+540bdKke7pSaKEUWcsiyCIKsoiKoOgroCigIvK6oLih8AIKogjIUmSHFum+pk3aNG32fZ9kMsnMZGbuff+YNG2aNF1Ikyn8Ps/D89C5c+89uSe/nl/PPYuiaZqGEEIIIYQQYlzoJrsAQgghhBBCfJpIgi2EEEIIIcQ4kgRbCCGEEEKIcSQJthBCCCGEEONIEmwhhBBCCCHGkSTYQgghhBBCjCNJsIUQQgghhBhHkmALIYQQQgg... | null | [
"iVBORw0KGgoAAAANSUhEUgAABIYAAAB+CAYAAABRYRpnAAB56UlEQVR4nO3dd3gc1dXA4d9sX/Xem9VsNfduMNhg03sngUCAhHxJgBCSAGmkENJJSKOFkJBAaKGY3mzAvdtqLipW72212r4z3x8ryZYlywZsa43P+zw8wrs7RTM6O3PP3HuuAmgIIYQQQgghjgpN02j1QJUD+v3gk7ttIYQQQcSgQLge8kIg0QQKkhgSQgghhBDiqGl1a2y0TfReCCGEEIc3LwIME70TQgghhBBCfJ7sdQR+JptgcmjgqawQQggRLPr9sHsAWjy... | 1 |
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/t0lAAAga0lEQVR4nO3df5BV5X0/8M8C6vJD2WLWLGLj3UGLCA5LlwTUGVlMJ1/RbERnUoxmqhKJMd/UaGwr7Yy6EU1JJ1ES1ESbIDE2Mak1Wh0lX6ew1DiAdetlXBRTk3tRcVcwcZEfbhC43z+Mm1BYBO6593Dvvl4zznDOs7vPG/3jvn32Oc+pKRQKhQAAABIxKO0AAABQTRRsAABIkIINAAAJUrABACBBCjYAACRIwQYAgAQp2AAAkKCyFeze3t7o7e0t13QAAJCKshXsbDY... | [
"negative trend",
"no trend",
"positive trend"
] | null | 1 |
math | grade-1 | compare-sides-and-corners | true | false | Which shape has fewer sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALgAAAC4CAYAAABQMybHAAAC4UlEQVR4nO3Wu4oVWxRA0XVOPwKfmRc/QA0N/QvxUy9+hpmhenPbtFsbbPtQBoVgKBeLQ0/GiGqzYbGCSbF3y7IsFzcz/13PXB1mbpeBO+t0N/PwZObZvZl/zmd2F9+X5d3lsdeCv+/Vo5nTT9fr4en5zIv7a/1wV10dZj58m/l8M/PxemZ/ebteiJuChydryzMzXw8z+8NvF1Dwq+Ufy8z+uKvAtgROmsBJEzhpAidN4KQJnDSBkyZw0gROmsBJEzhpAidN4KQ... | 1 |
math | grade-8 | similar-and-congruent-figures | false | true | Are these shapes congruent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD9CAYAAACGLQCpAABgaUlEQVR4nO3de1zO9//H8UcnHRGlOTQ55Jhqy5zmMGw2P+cwbMMyh9mGmENR6CByljnsO3MaszmMMTM2cpyzppIJW1iUCCU6XV3X74/WNU0NuepzXfW6325uX32Or8++1NP7en3ebyONRqNBCCGEEEIIoRPGShcghBBCCCFEaSIBWwghhBBCCB2SgC2EEEIIIYQOScAWQgghhCijPvvsM958881824YNG8Zbb72Vb5uXlxeTJk0qydIMmqnSBQghhBBCCGVUrVqVW7d... | [
"yes",
"no"
] | null | 0 |
math | algebra-1 | model-and-solve-linear-equations-using-algebra-tiles | false | true | Which equation does this set of algebra tiles represent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABiCAYAAABqHaQ/AAAKG0lEQVR4nO3dTWgc5wHG8Wd2VpGsbWSbSoqkJDaVTRMptCAbuzFtDq0JsXtwC2uCroWAe2h6qUgh5BykmyGYlEIhhFJCbdmnwiJTnEZpHNnYwq4jNS1yKtXVx67slVda62tn3h4cC4wcS+t9Z7Sz+/9BDrOI+Y9OfhRGrxxjjBEAAAAAK2Jb/QAAAABAJWFgAwAAABYxsAEAAACLGNgAAACARQxsAAAAwCIGNgAAAGBRfKsfAKhWXrpfJj9q/b5OokNuc5JewD0AAL6... | [
"5x+6=11",
"2x+6=18",
"5x+6=16",
"2x+6=10"
] | null | 0 |
math | grade-4 | parallel-sides-in-quadrilaterals | false | true | How many pairs of opposite sides are parallel? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAjTklEQVR4nO3deZCb9Z3n8Y/Uap3dah3dbRvMYYPB4JjbHIFAWDIQjhhzhjEECEOSqq3aqq2pmp3aP2a3arayW7Mzs1uzNbVbSbjvEDBgbghDICQEA8ZgG1/cMb7ULbXUraPVamn/aKznkbptt21Jz/NI79c/1qO+fu1+/vj0rz/6/lyVSqUiAAAAAA3htnoBAAAAQDshYAMAAAANRMAGAAAAGoiADQAAADQQARsAAABoIAI2AAAA0EAEbAAAAKCBCNiwxCP3DemZJ0e... | [
"no pairs",
"2 pairs",
"1 pair"
] | null | 0 |
math | kindergarten | one-less-with-pictures-up-to-5 | true | true | Count the bees in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAABCdUlEQVR4nO3dd3gc5bnw4d+s2qqstKorqzfLlqwu94JbTEwwNj0VOEAgCQEbCCQQDhBwTnLoISYBQouBnC+hxWAIzVXGuKpYkuWm3utWSauy2vn+GGklWZKrbK+t974uLm+ZuuOHefzMWyRZlmUEQRAEQRAEQRgXqgt9AIIgCIIgCIJwKREJtiAIgiAIgiCMI5FgC4IgCIIgCMI4Egm2IAiCIAiCIIwjkWALgiAIgiAIwjgSCbYgCIIgCIIgjCORYAuCIAiCIAjCOBI... | null | [
"iVBORw0KGgoAAAANSUhEUgAABCEAAAB+CAYAAAAa5QvPAACBgElEQVR4nOydd1wc1/W3n9ldYKlL7x2B6E1dsrq7Lbk7zb3EiXtN4jhuUZLfa8clju3E3ZZLirssO26qqBc6AhV6r8uyCyxl2Xn/GFhAoIYktJLu8/lIwO7M3Zm5+52559xzz5EAGYFAIBAIBAKBQHBCkGWZxj4o7QbTAFjEaFsgEJylaCRwV0OsCwQ4Kq9JCCeEQCAQCAQCgUBwwmjsldlpPNVHIRAIBPbFLA/wdwTNqT4QgUAgEAgEAoHgTOJAt/IzyBGmuiq... | 0 |
math | grade-4 | estimate-angle-measurements | false | true | What is the measure of this angle? Choose the best estimate. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAAvCAYAAADZ272NAAAHRklEQVR4nO3dW1CUhxmH8f8CKyy6YASMB8ASY1qtTXESI9CMTj3GCVjFVaaKaeIhNraxaCAUBY/BI1VHO2mq9RQtRo0mNZoaT9N0lOBYGqqRGBGsShRNQGHRVWHdXqRlajNxNGX5dtnnd7nfxfdcvvPOO9+aXC6XSwAAAACahJ/RAZ7qRk2tTn901OgMAAAAeJkAowOMdOGTEjnsdp0uKJQkfVZQqFvXr+vc8ROSpP4TX9Bj8X2MTAQAAICXMfnqicjkTjH3fN4+Jkb... | [
"30°",
"120°",
"60°",
"90°"
] | null | 0 |
math | grade-1 | read-a-calendar-ii | false | true | What date is 1 week after August 15? | "iVBORw0KGgoAAAANSUhEUgAAAssAAAF2CAYAAACYtNXtAABchklEQVR4nO3deVxU9f7H8RcDIm6giOCuKCouiEvmgmSa5pZZZt6r2bXUyrLVrkuUZj8zr9r1Xm3RblpumaZWoqa4BYqpqShuuOJGuCMkssrM7w9ikuDYoMAAvZ+Phw9hzpmZz3w4c+Y953zPOQ4Wi8Vy4FoYR+K2cz31EiIiIiJy7yqV9qKJewDNK3eydylyDxwir4Za4lLP08arN6UcSwEWe9ckIiIiUsw5kJ6Rzs8X11K5dE2aezxo74LkLpmOxG3nfq9elHJ0QkF... | [
"August 22",
"August 29"
] | null | 0 |
science | grade-5 | animal-adaptations-feet-and-limbs | true | true | Sumatran orangutans live in rain forests on the island of Sumatra in Asia. They climb trees to find food and shelter. The orangutan's hands and feet are adapted for climbing trees. Which animal is also adapted for climbing trees? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOzdd7gkVZ3A/W/l1Llv33zv3LmTM0MWkKAggoCgiIqsGXZ1XUQU46rrYlojgrC6RlRMKCYEAyJIDsPMMMMweebm2DlVrvePeZmXzABX2eXtz/PwPNya6nN+deqcql+fPl0tRFEU+b5PGIa0tLS0tLS0tLS0tPzfJIoisiwjeJ4XtZL7lpaWlpaWlpaWlv/7RFFEbCX3LS0tLS0tLS0tLS8OYRgivtBBtLS0tLS0tLS0tLTMnVaC39LS0tLS0tLS0vIi0kr... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOz9d7gdV33vj7/WWtN2P73qqDfbcq9gg00HYwwGA6H8QggX7oVwCSHUPDfcEFK4IQQuBgKhBIfATQIBQokDGINxr7IsW7YlWfVIp5fdp6zy+2PLio1tkLEICd/9eh49OmfO7Jm11qw1e97zacI557TWWGvp0qVLly5dunTp0qXLf02klHiehxDiV92ULl1+LZFd4dylS5cuXbp06dKly399rLVorX/VzejS5dcW2RXOXbp06dKlS5cuXbr8etB9tu/... | 0 |
math | grade-3 | identify-rhombuses | false | true | Is this quadrilateral a rhombus? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADFCAYAAABuBIVpAAAnYklEQVR4nO3deXxUhb3+8WeSSUhCErKTELaEfZPFgopYVEAqei2tIlVLa1uplvtrK/e2alWqgpba9gbbe9taba+0LsULrUBRNhFREAFZgglLWJMQQiaZZBKGrJOZ3x/BAxGEkJnk5Ew+7396vrN+56V9vZ6MZ85j8/l8PgEAAAAIiBCzFwAAAACCCQEbAAAACCACNgAAABBAdrMXAAKtoKBAWVlZcrlcWrx4cbP7srKytG3btos+b/LkyZo9e3Y7bAgAAIIZARtBZeP... | [
"no",
"yes"
] | null | 1 |
math | algebra-1 | identify-functions | false | true | Look at this table: Is this relation a function? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAACQCAYAAABNhSQEAAAPkklEQVR4nO3df1CU9b4H8PeyCAbBGrAbe2UVgxMGhqEtdJXpAummNFoyEYad5gCNB6/U0THo6ngdU26lMnPMFLlMI96rFxEKtS6J3CnOOf44geASZCVxoM7+QBCGBZaVYNnn/mHskREfi0W+fHc/rxn+2Ofxj/fMw5vv86zP83kkpaWlAggh43IHgJc63medg/ys9OE/0PGYRtxYByBkOqOCECKCCkKICCoIISKoIISI4LogdS99CCHrAiL9QwAA8bMXwbrxz6h76UN... | [
"no",
"yes"
] | null | 1 |
math | grade-4 | acute-obtuse-and-right-triangles | false | true | What kind of triangle is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACwCAYAAAA16xkbAAAf4klEQVR4nO3de1iUdf7/8dcwnAXkIEImgoEaJ3XLQ54SJLW2w9quUFQuHezwTTM7XNpmbh7Kta9ttv3a3Wtrv6WmpeVmSlpZW2KZ4IFMso0kUrGIECcZR2mEmd8fJjVlm8AM9ww8H9flH8I99+c19c+rT+/7/picTqdTAAAAANzCz+gAAAAAQEdCwQYAAADciIINAAAAuBEFGwAAAHAjCjYAAADgRhRsAAAAwI0o2AAAAIAbUbABAAAAN6JgAwAAAG5EwQYAAADciII... | [
"right",
"obtuse",
"acute"
] | null | 2 |
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 | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAATzUlEQVR4nO3deZCcdZ3H8ffzPH3OkUyYJJMJhFwEAgkmgBoEqpYIcUVFF3dd0N3arUJLd1V219pSWY/V9aAU0bJUtLBW2BKiq+yWoihyudwBkpCD3Be5k8lkMpOZ6enrOfaPp+fIZAIdp+c5Zj6vKio1T083T8/v15/n93x/z68fw/M872gJdvVBjwO2h4hITSQMaLRgQR20pMA4WvS8l7vD3i0RGe+WTYLEzj7/h9YUXFTvp5GISC30OLA9B0dKsKMPzG7bf0B... | 1 |
math | grade-6 | understanding-percents-strip-models | true | false | Which model shows 80%? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAVAAAABLCAYAAAAmjt81AAACKklEQVR4nO3XQWoTYRjH4XeStIva6kYUD6AeoSdwU/AQ3kDoOQrewDsodOMNeoNa91Z01bSB1obPxRAQ1JL8aR0jz7OZDDPD965+vOlaa+30qurTrGo6r7puBcBvTLqqnXHV062qx5tV3ella0dnQ48FsF5271dNTmb9zZPNquf3+roC8KvpvOr4ourzVdXHWdXo7Lp/IJ4AN9sZ962sqjqfV43mPz0A4GaLVn5vVaNhRwFYXwIKEBJQgJCAAoQEFCAkoAAhAQU... | 0 |
math | grade-1 | subtraction-sentences-using-number-lines-up-to-20 | false | true | Which subtraction sentence does this model show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAWoElEQVR4nO3de1BTZ94H8G+4ySJXFVS6lAhdsFgELxXQ7eJltPeqa2W106m4a23t7utWO461dafasqutveiUTqduZ9baFkfFBWt3HX1fK+AUuYigq4x2qwakAUvAIOEiRPL+cTyBiEqCB84l389MJslJJv5+EjjfPHnOc3Q2m80GIpJNtQVY9H/A8Z+B0vnA5FC5K+of9kFERCTwkLsAIne23wAkZguhTs3YBxERUTcGbCKZXOsAFvwvsHo8sCVZ7mr6j30QERE5YsA... | [
"8–4=4",
"11–3=8",
"8–3=5",
"11–4=7"
] | null | 2 |
math | kindergarten | triangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACJCAYAAADUvSEiAAACTklEQVR4nO3cPW4UWRSA0VtttwP+JgOxgBlSMhY062JDRJMykGNSGyxh3KoJSkiTu/W11JwT1dOTrm7w6YW1rOu6Xt/PfL6buT3MPKwDj3a5zDy/mPnzycyrq5nl+se6frg59Vqcs3cvZi4/3W2H11czb55uFcJj3R5mPn6f+XI/8+/dzO7mYbsQGcf0/GJrambm22Fmd/jfBRzTr6Z+rjO7067C70JoJIRGQmgkhEZCaCSERkJoJIRGQmgkhEZCaCSERkJoJIR... | 2 |
math | kindergarten | count-to-100 | false | true | How many flowers are there? | "iVBORw0KGgoAAAANSUhEUgAAAc4AAACRCAYAAABKSVgmAAAagUlEQVR4nO3dX2xc1aHv8e9ae8/4j4ghdiIXOVGAJlYMOJECUv7ArcqVLgRVqioqbh8Oug/Q9EiVKl1Kn3qOFHGk9uWIhD5VBzhXfYiKoCoSUluRngcoPY2J2kT35J8hiURNbIghNoodPLZn77XOw/afOOPZnu3YY2/795GsIM+M57uQZtbsvdfsbbz3/saNG5w9e5aLFy8yPDyMiCyv1tZWOjs76e7u5o477sj0WL1eReqr4vU6OjrqX3/9dX/ixAl/7do1nwdHjhx... | [
"20",
"26",
"24"
] | null | 2 |
math | pre-k | classify-shapes-by-color | true | false | Which star is yellow? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAHjklEQVR4nO3d6W8UdRzH8c/sNduD0kgPOSPhKIdIKIHKbYRECEekapBagZYQ0SiGGI0YfYI+MDHyQE144AOMkPAAFSlaKPAXkKDBCD2fNIHehNDSBmrb8cGwAbbd3Zk9vrMzv8/rCeIa+W37Zr6705nfaoZhGF3DQNsQMDAKjBggSllAAyb5gXm5QGkI0LoeGsbVfqeXRV5WUQAEWofM30wNAWV5ZoVEqRoYBZoHgc5hoGUI8PWPmA8wMkqnSX6zKQC4Pwr4Rp9... | 3 |
math | pre-k | represent-numbers-with-pictures-up-to-3 | true | false | Which shows 2? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAPxElEQVR4nO3dW2wc12GH8e/M7C6Xu8vLkqJEUhRFyRIl6mJF8UV24hhpC9QvDdCmQdEGSYOiLwGKIgFatA9J0BRoAxRBG6MPDeqkCJqmaIEmbdEESN3YsetEsSXbsWzdLVoUSZl3kcu932ZOH1ZWRIu+c/dQ9f/3IpEzO3v24cOZ2w6NtdbOVWG8CLkA6hYRaZKIgQ4f9iZgWwzMXMXak1nXwxJ5/znWCZFLxcYPAzHYl2zUKSLNkQvgYgFmq/ByEbxsvbFA8Yk... | 1 |
math | kindergarten | identify-pictures-with-symmetry | true | false |
Which picture has symmetry? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAf5UlEQVR4nO3deWATZd4H8G8mR9OkR3rQlhboCUVQQBBZQNQK4oGAB+IBLgi6eIOu6+u6u4q6uu6u63qsqAjeLgqLeCKoQIuiIMgpR7l6UGgbeqRH0lwz8/4REprmPmfS/D7/SGYmk1928+0zx/M8I+F5nm8wA0cNQAcLWHkQQiJEJgGSpcBAFZCtACQNJp7/uV3osgiJP2NSANkRg+1FXwVQqralkxASGR0sUKkH6s3AYQPAtFttKyh8hERestSWNQDoZAGG7ba... | 0 |
math | pre-k | cubes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAYEUlEQVR4nO2dSXAb15nH/72jG01QBChxcRXpqpgaa5mDlhrZB8kXT02U5RCpKrkkuczBOWZydm7WNancRoecnKuXSspRpsaXUAcvpeUwIuWITpVIl7mIBCkAjQZ6fXN4fA2ABGk0NjaA96tSSQJJdBP966+/971NIISQTRf42gZKAeATcDiJQxaAMQlYMIApFRA2HUK+LJ70aXE4rXMtA8grNv3PjAr8S5pazeEkjVIA/KMMbLjAMxsQiz79ApeWk2TGJOooAFg... | 1 |
math | grade-6 | understanding-percents-strip-models | true | false | Which model shows 66
2
3
%? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUwAAABLCAYAAAAbHL5TAAACKElEQVR4nO3XTWoUYRSG0Vv9k0FMNANRXIC6hKzCkeAmJNMsItPgJgQnuovsIMa5ER2E/DSkTfM5KFrM7E0nsVs5Z1JdVH9woeDhVtdaa8fTqi+TqrNZ1VUrAKpq1FVtDquer1c9Xavqji9bOzhd9lgAq237YdXoaNLfPFurevmgrykA/Vf34UXV12nV50nV4PSqfyCWANdtDvs2VlWdz6oGsz8eAHDdvI0/W9VguaMA/DsEEyAkmAAhwQQICSZASDABQoIJEBo... | 0 |
math | pre-k | represent-numbers-with-pictures-up-to-5 | true | false | Which shows 5? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAgqElEQVR4nO3deYycd33H8ffv9xxz7+Fd7+F1HBvbmASQ7aThKCQxDYdKW0qAVkiUtEW0tFVRW4moLVSloYfoAbTQQ1RA2pRDiMMtATUQNQSViNQpiU3jODF2vOt7d73n3M/16x+z13hn1o693sc7831JkTPPM88889l5PjPPNc8oY4w578GxEuRDCAxCiGvEVpCzYGca+l1Q56vGHJiN+2kJ0X5e2QH2j0u1G4Mu7MrU2imEuDbyITxXhHMeHC2Bng1qI6R8Qlx... | 0 |
math | grade-2 | compare-sides-and-vertices | true | false | Which shape has more sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALgAAAC4CAYAAABQMybHAAAHlUlEQVR4nO3dS28TVxyG8cf22OaeIEpSLlK7abvtju/QTVu1Uj8kQmLBp2BfVUDVZkGaC20JuTjxjCenC+OQ0Dgksedc/ud9JBaJCTpIP52cM54zbjnn3HoJvw9gp4aRQ6lkK1pwswNfXYPlHrTWh8493w49LKXm36NbULwajL+414Nvro/1K5VqOzW82IO1El4OoL09Gr8g3MpCNztjywC7NbTrYy8oZaGJ5cpBO+xQlGo2AVemE3BlOgFXphNwZToBV6YTcGU... | 1 |
math | grade-3 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines parallel? | "iVBORw0KGgoAAAANSUhEUgAAAF0AAACKCAYAAADISkZUAAAKgklEQVR4nO2dfVRUdRrHPyPICoosguaqmFkiSdIeOJlKuLar1movFGUvIi7ZsqSIWhFaZy0rU0QLEQtJY1Nc0zIVywo66kkI08U2RCRsfQFR01F2eJmhEZz9A2dWBkhe7p37MvfzFwzc+3vO58x5nsvcL7+rs1gsFjQcSjepC3BGNOkS0Ex63uY9lB85KVUtToPr9d8YDXW8eu8LeHh5EDjuTsY8/geGhwbi4dVTqvpUic5+kM4ZNoPaqppmvxQQGkjw5LsZPjaQwSN... | [
"yes",
"no"
] | null | 1 |
math | grade-5 | points-lines-line-segments-rays-and-angles | false | true | What is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACwCAYAAAA16xkbAAAWSklEQVR4nO3de3RV5Z3G8WefS5KTkJMQXDLtCYOsYjABvNRWA0MUigmZ0aUuzXKgXTpt2mJdjhUltI5QHAWsLbEFO46FrtKO9sJywLEddSB4jyMBZZSKR0FdSEk6daoknJDruez5IxDFhIQk++xL8v38x9nn7PdxyR8Pe/32+xqmaZoCAAAAYAmf0wEAAACA0YSCDQAAAFiIgg0AAABYiIINAAAAWKi3YNfV1WnKlClqaGjo86VoNKopU6Zoy5YttoYDAAAAvKa3YFd... | [
"a line segment",
"a ray",
"a point",
"an angle"
] | null | 3 |
math | grade-5 | mean-find-the-missing-number | false | true | Luke has the following data: If the mean is 70, which number could b be? | "iVBORw0KGgoAAAANSUhEUgAAAVoAAAAkCAYAAADIDvJzAAAHwElEQVR4nO3df2zU9R3H8ed9767tteX6m9IVKC0VSikDld8FtAFBRZiSmQySLWgzdZtmkuiyaUz2g+GSmRHRoGTLsiguQwQLNJEfMqSALU5dAdsrtNrjWtcfV6AF2p69H9/9UY70gIY7e9/7flPfj3+afL+f9Pvq+9Pvu99+7vu9M6mqqgJ4AwF6fX4CqoqKEEKIb8MEKCYTSRYzVkUZ3Kaqqtrn89Pv9+ubTgghRhmb2UyixYziDajSZIUQQgP9fj/egIrS7/fpnUU... | [
"61",
"70"
] | null | 1 |
math | grade-4 | angles-of-90-180-270-and-360-degrees | false | true | What fraction of a turn is this angle? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAAUCAYAAAC3ZkrjAAADo0lEQVR4nO3dMWgbVxzH8Z9CFzmkGSx1imVPiWM0xLgeYoWKhhgcLV4MlZa6NDTBkGZoSUJoCwmkQ1PSxYbGLilNO0gBL16kgAxFIScPVquh4ix7qXzuJCuDUnQer4Ow6sTYcVzZqqTvZzl4Tzx+4pb/Sf93z+U4jiMAAAAAdXGk0QEAAACAVkKBDQAAANTRngrsxXhW98enVMhZB50HB6CQs3R/fEqZRLbRUQAAAFreWztNVMq2nszMKxV7pvW155Kkjrfdmpi8dGj... | [
"3/4",
"1/4",
"1/2"
] | null | 2 |
math | grade-3 | purchases-do-you-have-enough-money-up-to-10-dollars | false | true | A box of envelopes costs 1 dollar and 83 cents. Do you have enough money to buy it?
| "iVBORw0KGgoAAAANSUhEUgAAAvgAAAGICAYAAAA06JS/AAEAAElEQVR4nOy9f5wkRX3//zwOsAcPqUaQaVG5QvzRC0ZnRGVHRW+MIQ5Geez6K7uYCMM3xuwZk9wm0dxiIt6h0b0kKquoLP68VdRd/MUoCnOicTZRnCHGXEdF6tRoj0ZTpR9xml/294/q7pnZ271b4JQL6dfjsTsz3dVV1fWj+1Xvev/YEMdxTI4cOXLkyJEjR44cOe4XOOK+rkCOHDly5MiRI0eOHDkOHXKCnyNHjhw5cuTIkSPH/Qg5wc+RI0eOHDly5MiR436E+z3... | [
"no",
"yes"
] | null | 0 |
science | grade-3 | compare-properties-of-objects | false | true | Which property do these three objects have in common? Select the best answer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADQCAYAAAByQhWRAACPCElEQVR4nOy9d5wc2Vmv/5wKHad7ctYE5ZVWuyutNmrt3XVc22vjhMEGczHJXLjX5HsxYO7F5pLMhR/BgEnmYoNtbJwDNs7enINW0ipnzWjyTOeucH5/nKruntGMNJIm6zz6lLq6qrrqVE2H73nr+75HSCklQLFYZGBggKmpKVzXRaNZbizLIp1O09nZSSwWW9Rj6fe/ZqWh3/+aa5mlfP9rNGsRIaWUhUKBo0eP0tfXRywWw7bt5W6XRoPjOBSLRU6cOMHmzZsX7Ut... | [
"yellow",
"soft",
"opaque"
] | null | 2 |
math | grade-3 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC/CAYAAADEvavOAAAehElEQVR4nO3deXiU1f3+8fuZmYSQBkkCQTAqRRFQsYg7AgIKghFZTHBBFBciAmqlFjfqj/5qwdalWhcwBlEoUFGCUSAgiiAYsVVA1gqyiIAgSwgQYxhm+f6R8CRTq5mBmZyZ5P36K+cxJLfXBdd1z5nPnGP5/X6/AAAAAISFw3QAAAAAoDahYAMAAABhRMEGAAAAwoiCDQAAAIQRBRsAAAAIIwo2AAAAEEYUbAAAACCMKNgIWd+5Dytr3mjTMQAAAKKSxUUzCFbhrtW... | [
"no",
"yes"
] | null | 0 |
math | grade-2 | place-value-up-to-thousands | false | true | What is the value of the underlined digit? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAAiCAYAAABlRa5TAAAJLklEQVR4nO3df0zV1R/H8ee9EnAxCEhMEplF03FD2gxMDc0xnFLNwYq0qJXa2h1brrWFWi43W03Roc7UGuh0tQTW/c8NnJtjqKUTU6iEHEsU0hWil2DKTeTz/YNxvny6l+THbd/53evx1+f8+JxzPvev9+7OeR+HZVkWIiIiIiISEs7/9QJERERERP6fKMAWEREREQkhBdgiIiIiIiGkAFtEREREJIQUYIuIiIiIhJACbBERERGREFKALSIiIiISQgqwRURERERCyBZ... | [
"900",
"9",
"9,000"
] | null | 2 |
math | pre-k | tall-and-short | true | false |
Which building is taller? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAGgAAADvCAYAAAAeqZHBAAAK/0lEQVR4nO3dfWzU9R3A8Xfb68P14drSVigFChQnFCdYQfegbsrqMo2JENzckpkRTdzcFrO5B+NmYubDtj9mMtwGyDacD8wHLI1E6CwELaLy0NIO6VHoYUtbWvpAe9f2+tzbHz/u7K0HHPQePr/6eSUNxz38ft/kneN+d59fjxiPx+NpG4Z6N/SOwagHFUWWGEiLg6uTYWYCxLQNeTwHXdFelgrkJhtYTrqNv+QmwDUpRj0VPb1jUNcPrcNwwg2xrlHjBo0jQ1q... | 0 |
math | pre-k | count-scattered-shapes-up-to-5 | false | true | How many shapes are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAE2CAYAAAAUKOa6AAAT40lEQVR4nO3d63NdZ3XA4bXP/RxZjiVLcnyNIusu2YZO2plChzDQTtoJhFDgrwQKhMtMhsIUZqAzNDMhtmXHBEJKEi5xiBxfJNmWdfrBpHGcOLFlHe293/08HyFIy1t8+Plk7aWs3+/3AwAASEIt7wEAAICdI/ABACAhAh8AABIi8AEAICECHwAAEiLwAQAgIQIfAAASIvABACAhAh8AABIi8AEAICECHwAAEiLwAQAgIQIfAAASIvABACAhAh8AABIi8AEAICECHwA... | [
"1",
"5",
"2",
"3"
] | null | 2 |
math | grade-4 | properties-of-three-dimensional-figures | true | false | Gabrielle built a 3-dimensional figure that had a square base. Which figure could Gabrielle have built? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHgAAABSCAYAAACfUxCCAAAReUlEQVR4nO2ce3hU5Z3HP+/lnDkzkxsBEi4BE+QqFhJIEaqVKl5QqRK52LX7PEDUlEusVsF1W2zp07rusl7WS7WsD6tAqW29NNZWi9U2gIrYUm2tVVDZQBGRJJIAyWRmkjn7x3tmkqjtSq7MON+H8wxzzlx+b77n9/3d3kS4ruseisA7zXCsDVpd0khiaAGZCsYEIN8GcSjsuq8c7W+z0ugNnJEF+u1m82SoDeOChv00khfH2mB3E7wfgT3NII+2mgtpclMDmcp... | 1 |
engineer | grade-6 | identify-control-and-experimental-groups | false | true | In this experiment, which were part of an experimental group? The passage below describes an experiment. Sadie grew roses for a flower shop. One day, she noticed tumor-like growths on her rose stems. She could tell that the plants had crown gall disease, which is caused by a type of bacteria. She knew that allicin, a c... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAE3CAYAAADBi3hdAAEAAElEQVR4nOz917NkWZbeif22OMrl1XFDR0bKyqrM6qzK0q0KaHQDMwCmiQEMIwwwoxkfYIQZX0j+G3gYjhGggSMexmicoZEgDU00BsB0A42uLi0ys1KHyBA3xFV+XR+xBR/2Oe5+IyKzRFZ1VtOw0zw97r3uR+6z9lrf+ta3xD/8h//Q8x/Gfxj/YfyH8Rdo/KN/9I8+kf1qgG/8T/8YpVOcz5iXEufbxNkGOlnDCU1vbZ2rzz7F13/n1/md3/0aFy6ugTBYO8XhiVQ... | [
"the roses that were not sprayed",
"the roses sprayed with garlic juice"
] | null | 1 |
math | kindergarten | represent-numbers-with-shapes-up-to-5 | true | false | Which group has 2 circles? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAKoklEQVR4nO3dX6jfdR3H8ddvHj3ljnpsQ9OjsJU2SrSgODNbBpUWWBdB1MUSoqQ/VxHiRUEQ3UQgXUR3ykLypn9gti4Uw4t0utCLabVW1gx22sIdptvZ8syNXxffrbM8Han8nffnt30fD/jBDr/t93nBYU++53s4vzMYDofDA8eT544lR04mJ4YBGImJQXLRecm1FyaXX5AMDiwOh7853HoWcK7bfHEy8adj3QdXXJBsWtvVCGAUjpxM9hxN9h9P/ngsWXP4RPe... | 0 |
math | pre-k | count-shapes-in-rings-up-to-10 | false | true | How many triangles are there? | "iVBORw0KGgoAAAANSUhEUgAAAqsAAAEECAYAAAAPuX1XAAANc0lEQVR4nO3du24b1xaA4W0hZdzkGfwMfuYIAlmwEIlAhBsiDdmkEFgcAyx0GdnRGR1oIoAQxuIp7Fi2ZIo0b7M4832dLuYMvLChH7zs/Wo2m80SAAAEdFD1DQAAwDxiFQCAsMTqT+j3P6Z+/2PVt8ESzAoA6uGXqm9gXxRFmTqdy5RSSm/f/pZev/ZfF5VZAUB9eGZ1SZ3OZZpOP6Xp9NPXECImswKA+hCrS8iyaRoMrr9+PRhcpyybVnhHzDOZ3JkVANSIWF3C4eF... | [
"3",
"6",
"10",
"8"
] | null | 1 |
math | grade-8 | perimeter-and-area-changes-in-scale | false | true | Look at this rectangle: If both dimensions are doubled, then which of the following statements about its perimeter will be true? | "iVBORw0KGgoAAAANSUhEUgAAABgAAAAOCAYAAAA1+Nx+AAABOUlEQVR4nN2UIY7CYBCFXzcVQBGkcAIMcAEQDYIg8Ehc0TiCrsCgECg4BQmCoGiCQxAsqkeoaTAk/N+6LiS7ZJMtZp97M5n3iZmMBaA36uOd4Slgu93K8zzl83lVq1UtFovsCAD1ep3pdEqSJBwOBxzHYb/fk4UEsFwun4rtdpv5fP7jULlcZjwe02g0KJVKDIdD1us1zWaTYrFIt9sljuMvwKOu1yuu67Lb7V4CBoMBURQRRRGVSoVWq8XxeCSOYzzPYzabfQ/wfZ9... | [
"The ratio of the new perimeter to the old perimeter will be 1:2.",
"The ratio of the new perimeter to the old perimeter will be 2:1.",
"The ratio of the new perimeter to the old perimeter will be 3:1.",
"The ratio of the new perimeter to the old perimeter will be 4:1."
] | null | 1 |
science | grade-8 | compare-concentrations-of-solutions | false | true | The diagram below is a model of two solutions. Each green ball represents one particle of solute. Which solution has a higher concentration of green particles? | "iVBORw0KGgoAAAANSUhEUgAAAbAAAAEVCAYAAACBn7B3AABvpUlEQVR4nO2dd5wcdf3/nzO7e/1yl+QuDZLcJSQhlSSY0AJIkCJFaYLKFwWEKD9RQRFR/CqiiMAXUCwoNkRRFBAQiKH3EkIzFYLk0nu53nZ3Pr8/Zj6f+czs3OWS3F3udj/PxyPZ293ZnbKf17zrfMYSQggMBoPBYOhn2Pt7AwwGg8Fg2BuMATMYDAZDv8QYMIPBYDD0S4wBMxgMBkO/xBgwg8FgMPRLjAEzGAwGQ7/EGDCDwWAw9EuMATMYDAZDv8QYMIPBYDD0S4w... | [
"neither; their concentrations are the same",
"Solution A",
"Solution B"
] | null | 1 |
math | grade-3 | angles-greater-than-less-than-or-equal-to-a-right-angle | false | true | Is this angle greater than, equal to, or less than a right angle? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABwCAYAAAAkAwevAAAL80lEQVR4nO3daVSVdQLH8d9lkYuo4L7VqFAuYJqgltsRkkwbj5qTaZknTDM1UzTUOTmdYZZTM5ggpkZaDafMsrJk4kQHNzwuuW+piQ6KmpjLyEXRe1nvvDBIRyHUBx4ufD9v9D5evT/ffc9z/jzX4nQ6nQIAAABgCDezBwAAAAA1CYENAAAAGMijrD+wOeyakfxvrT58UDaHQxHB3RU3ZKj8rN5VuQ8AAABwKWUGdsQXK5X046HS14l7dskppxKfHl0lwwAAAABXVOY... | [
"less than a right angle",
"equal to a right angle",
"greater than a right angle"
] | null | 0 |
math | pre-k | triangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACJCAYAAADUvSEiAAACXklEQVR4nO3VO24cVxBA0Zrhx4As2RkNBwolL0Er4Sq1E+1AljMFphySEgHSHLSDhgDnbNwxxudE/fCAQgUX/XbLsiw3jzN/3M/cHWaeloFnO9/NvDqbefNi5pfLmd3Nw7J8uD32Wpyydz/NnH+6Xw+/Xs789uNaITzX3WHm47eZPx9nfr+f2d8+rRciY0uvztamZma+Hmb2h39dwJa+N/X3MrM/7ir8XwiNhNBICI2E0EgIjYTQSAiNhNBICI2E0EgIjYTQSAi... | 1 |
math | grade-3 | parallel-sides-in-quadrilaterals | false | true | How many pairs of opposite sides are parallel? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAGhklEQVR4nO3dvW5cZRRA0TP+UygCAiSawCOQUPAI8AhUdDwYHVU6WrpQQoEDFSVlQImCEUhjey4NP2lgQrydwaO1qnulrzjNlbY+Hc2slmVZBgAASBzsegAAANgnAhsAAEICGwAAQgIbAABCAhsAAEICGwAAQgIbAABCR89z6JNvz+f0bDOvH6+uex5gR56cL3Pv9sF8+u7xrkcBgBtta2B/9M35fP7o8o83/0kD++y7Xy7n7HLm/nsiGwBe1NYVke9/3byMOYD/Cd8... | [
"no pairs",
"1 pair",
"2 pairs"
] | null | 2 |
math | grade-7 | identify-alternate-interior-and-alternate-exterior-angles | false | true | \line{IK} and \line{LN} are parallel lines. Which angles are alternate exterior angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADSCAYAAABw17dKAAAdeElEQVR4nO3df2xV9f3H8ddpvVQHZ/cyWye4FByKpIBW2q7F/bhtjLE4HcUtoCORK/uRubr1ymTEbQ0w021fZ9ztGHHqUm6TSaWztKNulMyEMhN7x3pKAVsbM2q5muHspbfYCt5V6PcPQrMKBUpve+6P5yO5CdxP7+e+jDnhfd/9nPc1hoeHhwUAAAAgKlLsDgAAAAAkEgpsAAAAIIoosAEAAIAoSvoCu7+/3+4IAAAASCBJX2AXFhaqp6cnKnt1d3fLMAy9+uqr560... | [
"\\angle{IJH} and \\angle{NMO}",
"\\angle{IJH} and \\angle{LMJ}",
"\\angle{IJH} and \\angle{IJM}",
"\\angle{IJH} and \\angle{KJH}"
] | null | 0 |
science | grade-6 | identify-ecosystems | true | false | Select the tropical rain forest 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, wet summers and cold, wet winters
soil that is rich in nutrients
only a few types of trees This ecosystem has:
warm summers and ... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACtCAYAAAD2xRSHAAEAAElEQVR4nOz9d7Rl2V3Y+35XXjvnc/bJqepUruqu6tzV3VIHtaAlUKIlEBLIyBKXeI0JeoDNe7afkZ8MBoR8QQhEEAJkgVAOrZY6h6qu6srx5LhzXnvlte4fp9V2GQzmjgfysPanxhmn1l5hr7VPzVG/85tz/qZwsh2Ge2KQkBgYGBgYGBgYGBj4R9H14aoBQscLw0HgOTAwMDAwMDAw8I+t64MQhmH47b6RgYGBgYGBgYGB7wzyf7vxb3/vzWQyGbqdHul0mu3... | 0 |
math | grade-8 | quadrants-and-axes | false | true | Which quadrant is the point F in? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AAA8N0lEQVR4nO3de3RUZYLv/V8lRULuCQQIlxCk5aIhoKDcQ0sj3Sg2IsqxOdoto+MZPKdf7X6dXsflOK4Zu+E4a8ZpRdvTbU8vmRmd8cCL7TQNDooIMYgYEAgQOIAaQEhIQu6pVFWqar9/QKUDBEj02dm1k+9nLZfUrmLn52Nl71899ewqj2VZlgAAAAAYEed0AAAAAKA3oWADAAAABlGwAQAAAIMo2EAfN2fOHL3zzjvtt//whz/ohhtuUCQScS4UAAAuRsEG+riJEyf... | [
"Quadrant II",
"Quadrant III",
"Quadrant IV",
"Quadrant I"
] | null | 1 |
math | calculus | identify-functions | false | true | Look at this graph: Is this relation a function? | "iVBORw0KGgoAAAANSUhEUgAAAQ4AAAETCAYAAADH+ejgAAAOEElEQVR4nO3dT2xTZ76H8a8zw9iEaWK1yh+pDSM0NPGCXjsK1TiqhGB2bkk7FJVWlRypUpGGBTvWLaOWikqwAoq6qai9KaiqIlEprEh2NhURNkSVo0tESBYN6b0XGwgxcI1nEdmDiUn8s53YTp7PBjh58+alVE/OOT7x68hms1kBgEFTrRcAoPEQDgBmhAOAGeEAYEY4UFQ6nVY6na71MlCnCAeKisViisVitV4G6hThQFGRSETRaPSFHz99+rQCgYBmZmYkSY8fP9Y... | [
"yes",
"no"
] | null | 1 |
math | pre-k | circles-squares-triangles-and-rectangles | true | false | Which shape is a rectangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAACgUlEQVR4nO3UPW5VVxiG0e9e/xT8JBUgagQMgTGEKSVlxsQgmAEYpY2RqGywhOOrQ3GElCIdznMks1a1t3bzFo/2blmW5fx65sPVzOVh5mYZ+GHHu5mHRzPP7808OZ3ZnX9dlrcXW8/iLnv1y8zx2dV6eXo68/L+WiH8qMvDzLsvM39fz7y/mtlf3KwPIuM2PTxam5qZ+XyY2R/+9QC36XtT/ywz+22n8LMQGgmhkRAaCaGREBoJoZEQGgmhkTjeekDizZ8zn/7... | 0 |
math | algebra-2 | find-inverse-functions-and-relations | false | true | The graph below shows a function. Is its inverse also a function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AAB87ElEQVR4nO3deXgU150v/G9v6tYuIYEkhCWMAWGwWGQDBiMMsWMbYzsBx8HO4tjx5I5n4iWZO3NfJ69n7kxex+N57mRm7LGd5Y4TO/PmHcfc2E4MCILNIgUMGCEJJDYhkJBArQWppd6ruqveP5pqSyBBt1RHvej7eZ48DlL3r4+q+lT96tSvzjGoqqqCiIiIiIh0YYx1A4iIiIiIkgkTbCIiIiIiHTHBJiIiIiLSERNsIiIiIiIdMcEmomH+67/+C/v27Qv/OxAI4KW... | [
"no",
"yes"
] | null | 0 |
science | grade-2 | identify-living-and-nonliving-things | true | false | Select the living thing. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAAEAAElEQVR4nOz9Z5Rta3aehz0rh51j1a540j3n3Hxvp9sRmQQIokVApi0zWR62ScqUSA9LDn9ky7Ity5Y0ZHsMDw79sIbFYFoiSAMUxSAGNECA6G50uH3TyaFO5Z3D2iuHzz++Xet2ww2rhftHHgO7u+6pqnOqatfac81vzne+7zuVby2FuFOBmsYfPP7g8d/Ih5fDQx8uEmjp8OWm/Lz6B4H7B4//pj9qGtypyPfX+cefV/8gcP/g8f8Pj6s4TcXHn9N/2D/s/0y... | 1 |
science | grade-4 | identify-rocks-using-properties | true | false | Select the one substance that is not a rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEGCAYAAAD2aACLAAChdUlEQVR4nOz915Ns6XneC/6WN7nSm/J21/a7d3uYbhIkaAGSoo4onTM6MxOauVGcy5n5JxShqwmN5loTZ0ZHmtDRHIkSSYmiRIAgwUaj/e7efu/yld7nylx+rblYWdkGDZAAsQGQrCeiIquyXJrvWe/3ve/zPq/w1ihJrmYgK3GBC1zgR8AkgodTaPhQlOHnCun94gWxLnCBvxqyElzNpJ/b0cf3ixfEusAF/uo451GQfHyf+NN5KBe4wN98XJDrAhd4Rrgg1wU... | 0 |
math | grade-4 | measure-angles-with-a-protractor | false | true | Is this angle acute, right, or obtuse? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEVCAYAAADaTZLyAADfcUlEQVR4nOz9dXBc+bqmiT6ZKaWYmRksy0IzSCaZmV128T77UPfp6Z6JmIm4N/rOnTsXenoaTp+es8+G4jIzkwySbMmWLMmyxczMkAz3j5RWWaaSbRnr90RUVClzwS9Vysx3fev93k9mNpvNCAQCgUAgEAgEgmlB/q4XIBAIBAKBQCAQfEwIgS0QCAQCgUAgEEwjQmALBAKBQCAQCATTiBDYAoFAIBAIBALBNCIEtkAgEAgEAoFAMI0IgS0QCAQCgUAgEEwjQmALBAK... | [
"obtuse",
"right",
"acute"
] | null | 2 |
math | grade-5 | identify-rhombuses | false | true | Is this quadrilateral a rhombus? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACvCAYAAADHa6lVAAAaMElEQVR4nO3d63NU953n8c85UkuNrq0bFwvjG74wviTyxGYnQImpQO1oauUE22MMCBDGTmqprVmomtp/gAfU7rPZR2uwLXG1QQ7YUTaaWdsLZCEJcWKUYNlcHNtS8AXdkRqpJTV99oGkc7oBgxB9dLpPv19VlPRrdff5diOVPur+9K8Ny7IsAQAAAEgK0+sBAAAAAD8hYAMAAABJRMAGAAAAkoiAjYzR0dGhrVu3qr6+3utRAACAj2V7PQAwE44ePaqGhgZVVFR4PQo... | [
"yes",
"no"
] | null | 0 |
science | grade-2 | classify-rocks-and-minerals-by-color-and-shape | true | false | Select the light gray rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAACVw0lEQVR4nOz9WYwleZbeif1sN7v7fq/vW0R4REbumVWVtXVXU+RQMxhAkAAJGECAAOldD3oSoAcJGEAaDTgaCUMRo2VIDAmK4kAke++mqpfau7Iq98zYfV+u332/13YzPdg1y4isrKiiqouVbPoBHB7h4eEe4fd/7H/Od77vO0IYhiHXcR3X8bkh/qb/AddxHV/kuE6Q67iO58R1glzHdTwnrhPkOq7jOXGdINdxHc+J6wS5jut4TlwnyHVcx3PiOkGu4zqeE9c... | 1 |
math | grade-2 | place-value-models-up-to-hundreds | true | false | Which place-value model shows 894? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAW8AAACuCAYAAAD5/4yxAAAg+0lEQVR4nO3deZAkZ3nn8W9mVWZWVdbZd/doDkkzkoXASGAENjfsosAYvMB68YIAYcDY/sOcERBLcAULwcbGOjh2lzALBDi8XkzYrIH1AgHGePEVBBbDpXMkjaSZ6bu7jszKynv/qKruru7KmkZqdXVNPZ+ICs10vf3kO4eeynnzzV8qcRzHSx6ca0IjhCBGCCHEEZNWoJCCMzmY1UFZcuP4B/VhT0sIIcR+Pb0I6fua7Z/M63C92e7sQgghjpZGCPfYsOjBvU1... | 1 |
science | grade-3 | use-data-to-describe-world-climates | false | true | Which statement best describes the climate of Rio De Janeiro? Hint: Summers in the Southern Hemisphere occur in December, January, and February. Winters in the Southern Hemisphere occur in June, July, and August. Rio De Janeiro, Brazil, is a city in South America. It is located in the Southern Hemisphere. It has a trop... | "iVBORw0KGgoAAAANSUhEUgAAAtgAAALLCAYAAADDkfUwAAEAAElEQVR4nOzdd3yUdbr//9ek995II4WQQkmhBAKhSBENHSysuqIef+qu38U97tl11T3r8Rxdz+7qupYtnnXFtqIooASCSgtFCC0hBJKQSgolvZdp9++PkBtCAgaZZAa9no+HktxT7mvmvjPzns98ikZRFAUhhBBCCCGESViZuwAhhBBCCCG+TyRgX0VmZiYajQaNRkNSUpK5yxE/QGvXrkWj0ZCQkHDD9+Xj46Oez73/WVlZ4efnx49//GMqKyvV65aXl6vXaWpquqH... | [
"Both the temperature and the amount of precipitation are higher in summer than in winter.",
"Summers have lower temperatures than winters."
] | null | 0 |
math | grade-1 | comparing-review | true | false | Which group has more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAXYAAABeCAYAAAA31j+KAAAFu0lEQVR4nO3dP3PUVhjF4aOV1gME1oRhlgkFpgk0W6Sjg0+A6ahIKtIFOj5FOjsdUNGmsfkEUFJR0BhSsCkILEzwHzBgS1YKsROvbdYr6V5J+87vaYwxo/ceeeZoLS2+QZqm6est6a9NaSOR4lQAgCkSBdKJUPrxmHRmRgpef0nTJ+t1LwsA4MKljhS92Mw++WFGuvhd1voAgOmxkUgrH6V/tqTnm1JrPc6+QKkDwHQ6EWYdLkkfEqmV7PoCAGA6DTt8O5Va9S4... | 0 |
math | grade-3 | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABfKElEQVR4nO3dfViUZdo/8C+IgwJjyvDiUOmACqlMW2EBvqKU9iJYaan0tLvPqu22W0Ft2QZbbfVgZW9Qv9padavn2YBKS8VKKQzUEEpqC9TAGkarwUHGt2FQRpDfH+yMDDAz17wxA3w/x+ERM3Pd932mMwfnXPd5nZdfZ2dnJ4iIiIiIyC38vR0AEREREdFgwgSbiIiIiMiNmGATEREREbkRE2wiIiIiIjdigk1ERERE5EYB3g6AvO+MsQOtbe0wnG3v+m9b138Dhvk... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABvaElEQVR4nO3de1yUZfo/8A8HBwTGlOFc6YAIpUxa2AIeEqXULcFKS6Xvbv1W6bsdNqktLdhqq8U2O0F9a9vVttrdwEotxUopFNQUSzoNaiDCaDUwyHiaGYTh9PuDZWKAmXnmPMDn/Xr5cg738zwXOFNzzXXf1+3V3d3dDSIiIiIicggvLy93h0Dkdt7uDoCIiIiIiIiGFyaaRERERERE5FBMNImIiIiIiMihmGgSERERERGRQzHRJCIiIiIiIofydXcA5H4X9Z1... | 1 |
math | grade-5 | mean-find-the-missing-number | false | true | John has the following data: If the mean is 23, which number could b be? | "iVBORw0KGgoAAAANSUhEUgAAAMIAAAAkCAYAAADb/OWuAAAGW0lEQVR4nO2de3QU5RmHn52d7LLrJlx2IVeQgFySAAqCtgSBtJgWKlIBNUc8eEH0IGq9cLQVL2DbU1So9VLbemzPsWApFaiVVi4HOEEPlyNBQHQTiCQmUHIjJMFNNtmd2fGPmOiKmsnuTEbhe/785t39nvy+vPvNzkxObJqmaQChiEJLuBVVi6AhEJy/2AC7TcKd0AuHJLePaZqmNSttBJU2a+0EAgtwy07cshM5pCqiCQQXLC1KG7LNjhRUQ1a7CASWElRDSEpEtdp... | [
"17",
"22"
] | null | 1 |
math | grade-6 | identify-complementary-supplementary-vertical-adjacent-and-congruent-angles | false | true | Which angles are supplementary to each other? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADlCAYAAABpqIBfAAAtmElEQVR4nO3df1SWdZ7/8adK3kcnkPTcU863blBOyV0yYM3eaDuzgGOJZziKbQ24lT9mISwVwRSVEUUsMTWBLWcwPCs7jUcoG7HjWZ10Cs62o9x7ChgyfpiK6GZ5T3bHXbg3csv3D1c2J02FGy5ueD3O8XRzc12f63Wd0x9v336u9zWoo6OjAx/idDoJDAw0OoaIiIiIyDUNNjrArWpqaiI+Ph6n02l0FBERERGR7xjkax1sgEGDBnHXXXfxxhtv8LOf/czoOCIiIiI... | [
"\\angle{5} and \\angle{3}",
"\\angle{2} and \\angle{3}",
"\\angle{5} and \\angle{4}",
"\\angle{2} and \\angle{1}"
] | null | 2 |
math | grade-4 | properties-of-three-dimensional-figures | true | false | Eve saw a 3-dimensional figure. It had a square base. Which figure could Eve have seen? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMwAAABSCAYAAAAYTjvBAAASNklEQVR4nO3de1hUdf7A8fcQ0ibCgAmmkDOoqUQp7EKFqwKZRnYBNJYuyMVV11XkUtCGv1yGzdSfFwTv+agM2vZbbwmZF1JwXJVnwQtj6eqm0JiFCPUwIKAgLL8/Jk6igMwwgNX39Tw+PXC+55zPDH3O93K+33NkTU1NTaX1cKkWrjdCQxOCIPzIUgY2D8BjvaG/FchK65qaCqp6OixBuP89bQuWF2sNPwywguHWhmwSBMHgeiP8pwau1sNXtWBR1WDYIJJFEO5... | 2 |
science | grade-2 | natural-resources | true | false | Natural resources are useful things that come directly from nature. Which of these pictures shows a natural resource? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAV4AAAElCAYAAACszooYAAEAAElEQVR4nOz9Z5ckaZKliT3yMlUzcxIRGcmLdFX3EPTODBYHB9/wD/Cj9xycPTiLpdhZYGemu7e7uqqrkgVxYkRVXyL4IGrmHh40I1lEpklVpLsbVVNTvSrvlStX5H+4VP03Kzj1HOMYxzjGMb7HuK7wXzbwxQT3A/zf79nt7gi6xzjGMY7xw8Sph3+zst/X9eZ2dwTdYxzjGMf44WKPsVlvbgsveuBf/vG/B/RFdx1CRF5xJ/Cq+1/3/DeIb/P8/WPf5jnfNlS... | 3 |
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? | "iVBORw0KGgoAAAANSUhEUgAAAMYAAACECAYAAADLC1Q6AAAmuklEQVR4nO19e3xU1dnus/dMLpPJdZKQwCCJGCBg5FKhQNH4VSzQFg+3fiD4WdR6KnL6+7XK6U8ELz1fEfRrq3LaY70cteix2qINeKxIq7YiPdwrYD4SIXLL5ELumUnmsmfvtc4fa+89e09mkpkkc0nYz09Z2ZfZe62Z9ez3fZ/17rU4SimFAQMGdOATXQEDBpIRBjEMGAgBgxgGDISAQQwDBkLAIIYBAyFgEMOAgRAwiGHAQAgYxDBgIAQMYhgwEAIGMQwYCAGDGAY... | [
"probable",
"unlikely",
"certain",
"impossible"
] | null | 0 |
math | pre-k | count-sides-and-corners | true | false | Which shape has 4 sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAHJUlEQVR4nO2dv28TSRTHv87amxADd3YUToZEwiI5UApaWiqKiJa/MEqTdAilQBR0kSijNBwWQkjWJdH5OOL8MrHZK0wQnDjAu/PevJn9fjoIJqOdj9+zvzs7U8myLNv7AHROgP4IGGYgpDDVCnAlAZZngd9SoLI3yLIXh76HRWLm3lWg+upk/IdWCtyujy0kpCj9EfDyGPjzA/DHCTB1OBz/gJIRl1xJxk4BwNEImBp98QNCXHLh1HkGTPkdCikLFI2oQNGIChS... | 1 |
science | grade-8 | classify-elementary-substances-and-compounds-using-models | false | true | Complete the statement. Magnesium is The model below represents magnesium. Magnesium burns easily in air, so it is often used as a fire starter. | "iVBORw0KGgoAAAANSUhEUgAAAkMAAAFWCAYAAABqypkuAAEAAElEQVR4nOy9e7htR1Un+quaa7/PM+ckIQmPEMIr4am2gI3gq0Wugh/2RUS62/a2Nhfl9qXRbhtb7faBAREUEVTUK6ggKG/9IDwlQggGCXmRkOTk/X6ds89+773WrLp/VI2ao8YcNdfaJyc55yRz7G9+a+255qxZo6pmjV+NMWoM47336KmnnnrqqaeeenqEkj3WFeipp5566qmnnno6ltSDoZ566qmnnnrq6RFNPRjqqaeeeuqpp54e0dSDoZ566qmnnnrq6RFNPRj... | [
"a compound",
"an elementary substance"
] | null | 1 |
math | grade-5 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines perpendicular? | "iVBORw0KGgoAAAANSUhEUgAAAEwAAACPCAYAAABQ6z0xAAAH3klEQVR4nO2dW2xTdRzHPyWFQRmXNToYEblU2UhkFBhzW0yUOC4G0ZEYeUADvEACxnAT3oR4l8s0muhAE5fog6KEoVGQhTCjYQgzGQ0J9IHNySKXkDKgDGEN9aE7XbFd18v/0v+Z36fClv1OPqfnnP/nnP//dxzhcDjM/0k5Q3RvgGkxDljr+fNa6xsHrOF4M/VHGrXVNw4YwKraWg42N2upbRywr5t+AWDZ2+9oOTyNA+bKywPgTijEqt21dAWDSusbBywQvBn5EIb... | [
"no",
"yes"
] | null | 0 |
math | kindergarten | count-sides-and-corners | true | false | Which shape has 3 sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAFxklEQVR4nO3dzWscdRzH8c/mCa2NHgRF8CCCetSDUopCkf4BetOLeBAvCkL/B5VepCgogoiIB/WmOaghVgnxARsPJS0NsTkkh6RJNCRm0026zmY8/Do0tWnMZma/v4d5vyDQpCSZLO8kO58kO408z/OltjTbkpodKcsFlDbQkIb7pUeOSPcPSY2la3l+bsP3YSFlx+6WBi633DMPDEmP3eUqBMpqdqSZq9KVtvRHS+rbyNx/EBmqNNzvmpKkzY7U19n1H0CViqb... | 0 |
math | grade-7 | identify-alternate-interior-and-alternate-exterior-angles | false | true | \line{RT} and \line{UW} are parallel lines. Which angles are alternate interior angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADSCAYAAABw17dKAAAeOElEQVR4nO3de3BU5f3H8c/ZEAJFTCJUSIKSCBSUABu5aNQ2WUvFW2FRW3WKw8KoI5eBDIyaikrogB1sQ+ON2BkLmxkcxMpkR0Sgcknq1IzhFkSjFEoSZUjAyibctyGb3x/82ApJwGbP5uzl/ZrZGTlPcp4vMmf45OE5z9dobW1tFQAAAABT2KwuAAAAAIgmBGwAAADARARsAAAAwEQEbAAAAMBElgZst9utkpKSLpnL7/dr1apVGj9+vPr376+EhAQNGjRITz/9tE6... | [
"\\angle{WVS} and \\angle{TSV}",
"\\angle{WVS} and \\angle{TSQ}",
"\\angle{WVS} and \\angle{UVX}",
"\\angle{WVS} and \\angle{RSV}"
] | null | 3 |
math | grade-1 | shapes-of-everyday-objects | true | false | Which is shaped like a sphere? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIUAAACFCAYAAAB12js8AAARX0lEQVR4nO2de3Bc1X3HP+furrS7kiz5KVvYxsY2toeAecXUFEOhBkw7EJPgwhQyGQ9uCCXTEkjBaRLIq0NMU5JMgA7PKdMo0Ja4BOLGmOERbAo2GIOB4ie2hCRLsqyHV1rt657TP+6+78parfautPL5zJyR9t5zz+937v3uOb9z7r1nhVJKtUfgYBACJsQUmlMMt4AaFyzyQ30FiPawUjtPjLVbmvHCRZPAfSBofZhVAYurLMVoTi0CJuwbgKMR2B8E40TM2qE... | 2 |
math | grade-7 | apply-addition-and-subtraction-rules | false | true | The number line shows two unknown numbers, u and v. Is u+v positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAIM0lEQVR4nO3dW0yU+R3G8eedYYYRmEVqxVNUsmpRqrEqIBi7azY9pLVug7Ft3G2NiYlR42p7ozfr9mKJidvGXqhRU6+8UHvCqHemaTPSNhxEMgkV3XQLaGQVK6CCzIGZtxdzQJRTyzAvr/P9JGZm/qB5ksGZh//85j+GaZqmAMBGLly4IMMwtH37dqujIE24zwHYSZbVAQDgf3X//n2rIyDNuM8B2MmEC3Y4HFZTU5Pq6+tVWFjILsIoegelkx2D8nVHdaMnqsUeQ6v... | [
"negative",
"positive"
] | null | 0 |
math | grade-2 | greatest-and-least-word-problems-up-to-100 | false | true | Some friends played a trivia game and recorded their scores. Who had the lowest score? | "iVBORw0KGgoAAAANSUhEUgAAAQMAAAC9CAYAAAC3Zhh6AAA0P0lEQVR4nO2dd1gUxxvHP8cdIB3lrGgUK1YUS1TsvZdETaImtmgsMRqNURONLRoTibEQS9QEzU+NJSoao1ixKyqiRsWOgGIBAWnCwe3vj4OFE6QJHMh8nmefh5ud3X2XnXl35p3Z+SrquM2XEAgERR4VwOTe/Qxth0AgMCA/e2zHyNBGCASCgoFwBgKBABDOQCAQJFHgnUFMgoIpV+yYda0EMQkKQ5sjELy1GNQZ+ISb4vHIIsNK7hdlQkickoAYFevuW+ejdQJB0UJ... | [
"Edna",
"William",
"Natalie",
"Becky"
] | null | 1 |
math | grade-7 | rational-numbers-find-the-sign | false | true | The number line shows an unknown number, a. Is – a positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAlwAAAApCAYAAADgbPfrAAAGU0lEQVR4nO3df2jTdx7H8dc3ab6Nra5Ltd08ZhWEYyuCVmtsRad/3LY/nIOK/ziGCIKgeAg3xH9uf12R+cfkuKug4P4pR8+77eox/xvcsVRkSWp0gdJuB55pvc2jtXOe1iTNj+/+SBPtaddmzTffJjwff5R8vw3lVb6Q7yvv7yffGJZlWQKACtLX1yfDMHTgwAGno6BMOOaodDVOBwCAYt25c8fpCCgzjjkq3YILVyqVUiQSUSgUUnNzM+8ylqDA91n1jKUV/Z+l0YS... | [
"negative",
"positive"
] | null | 1 |
math | grade-2 | which-tally-chart-is-correct | true | true | Alice went to the state fair. She saw some things. Which tally chart shows the right number of each thing? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADhCAYAAADyOcJJAABU50lEQVR4nO3deXSkd33n+/ez1F6lKu1qdbdavdi92O1uY9qEOBNjbGJDMNsEX+BeYocZQsAEck9yc0gCnCQcCEwYhkmYzCSBuQFnhoRgO4QbMMRbmyWxGy/dbvdi96Le1NpVe9VTz/K7f5RUUqmqtHSXWlL7+zrHx6pfPfXU80jqcz710/f3/WlKKYUQQgghhBCiKfSVvgAhhBBCCCGuJhKwhRBCCCGEaCIJ2EIIIYQQQjSRBGwhhBBCCCGaSAK2EEIIIYQQTSQBWwg... | null | [
"iVBORw0KGgoAAAANSUhEUgAABDwAAADrCAYAAACFHoZnAACmQUlEQVR4nOzdd3hc1Zn48e+9d3rRqEuWbVlywRVsinEMSQyhGEiMgQRSfqFuGoFAeoCwm8KGQMISNktCCiQhZDcJhJ4QOhgCxoABY1vutmRbsnqZXm75/THSSOMZybItW7L8fp6HB8255957zkgead45530VwEIIIYQQQggxIizLojkJW6MQMkCXv7aFEOKwsCng12CGByocoCABDyGEEEIIIUZMc8LizeBoj0IIIY5uiwrANtqDEEIIIYQQYjzZEk3/f4IDZnr... | 0 |
math | grade-7 | apply-multiplication-and-division-rules | false | true | The number line shows an unknown number, r. Is r 2 positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAF5ElEQVR4nO3dT0yTdxzH8c9T6APjz5S5mpAF5pYdlkZHjFDBmMW7QVPjxYsxwZno3K6evGzGhOMSTTRhOzAlJltqnIvnFQ+jRTS4DnajwcMWkMgMCP1Dnx1KK0ygGkt/T+n7dWj4Penhkzw9fPLj+/wey3EcRwBQRgYGBmRZlk6cOGE6CkqEew6gnFSbDgAAb+rJkyemI6DEuOcAyslrF+xUKqWRkRFFIhHt3Llzy+wiZKbvKP33DTlzo3LSs/I0tKnKd0RVLV+ZjgY... | [
"positive",
"negative"
] | null | 1 |
science | grade-3 | read-a-thermometer | false | true | Select the temperature shown by this thermometer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAGQCAYAAADbbRRJAACchklEQVR4nOzdfVyT9f4/8BfivbJNsxtlxihNmSXYjczSGCV40koUOqF2Auxk1jnFOIGemxQQ+36/KR2GnfOr7MjGOaUWoHhOWULlNI3hKZ0Ww7J0yrDMzHHhLSr7/TE3Gbu7Njaua9v7+Xh4Om7XzQfF8dpn78/7E2E2m80ghBBCCCGEhIQ+XA+AEEIIIYQQ4j8U8AkhhBBCCAkhFPAJIYQQQggJIRTwCSGEEEIICSEU8AkhhBBCCAkhFPAJIYQQQggJIX25HgAhgbB... | [
"40°F",
"50°F",
"80°F"
] | null | 1 |
math | grade-2 | estimate-to-the-nearest-ten | false | true | How many marbles are there? Estimate. | "iVBORw0KGgoAAAANSUhEUgAAAlgAAAGxCAYAAAC+xcgLAAClOUlEQVR4nO29f3AU553n/wYhJI2AETITAwo7kqVcVpw4iUIiXhNGImcXImyKkdhjUQqdB1UuZO1KjKBye3v+xohc9rIbYmmw77B13IohUy5IzkZia9cgUxfEVPacjcEaXMRKvDLSGA+kNBJqydJIIw2a7x/abs9ofnXPdPc8T/fzqpoqGI2mH01PP/15Ps/78/4sC4VCITAYDAaDwWAwZGNFpgfAIAuO43Djxg243W709fUBAIaHhwEAxcXFAIC6ujpUVVWhtrYWBQU... | [
"about 90",
"about 40"
] | null | 0 |
science | grade-5 | evaluate-natural-energy-sources | true | false | Below are three examples of using energy from natural resources. Select the use of energy that did not add to air pollution. Hint: Burning a material such as wood, oil, or coal releases chemicals that add to air pollution. The engine on a garbage truck burned natural gas. A wood-burning oven was used to bake a pizza. W... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAADOCAYAAAB4pWlzAAEAAElEQVR4nOz9d5ClWXreif3OOZ+//qY35U1XVXdXT7vxsMQCBDmgA7jYZZAyGyS4K0VIsStRwViFFIqVgiGzSynIlVmKXHJJkMDSwJAwBMZgMK57uqddtanq8lVZlZX++s+fc/THdzOrewxmCAykCM39RdxIW5n33Lxf1Hvf932eR7w6sPaJGjQUM2bMmDFjxowZM2b8sTDS8P4ExLC0dlZ4zpgxY8aMGTNmzPjjZqRBWGvt/6/vyIwZM2bMmDFjxowfDJwPfjD... | 1 |
math | grade-3 | select-figures-with-a-given-area | true | false | Which shape has an area of 5 square units? The shapes are made of unit squares. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMIAAABKCAYAAADpAouEAAACGElEQVR4nO3cPY6bVRSA4eebv2JIoEGgLIBkCZEQiDTQsQu2AItgDawCKqAgCESRHUxCn0FQzSQjZRjrUnwaCSGF0teK36exLRfnSL6vb2UvY4xxfs3vV1xuuBmSN97Rwt1DPjjl/ROW81djPLmYvVYyz8O3OXp2tb64d8KDt9ZKkjfd5Yazlzy/5ukVBxc36xtFkH1y93A98/Biw8HmX28k++T2zP89OJi7SrIbCiFRCAkKIUEhJCiEBIWQoBASFEKCQkhQCAk... | 1 |
math | grade-1 | which-picture-graph-is-correct | true | true | Bob went to the store. He bought some fruit. Which picture graph shows the right number of each fruit? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADhCAYAAADyOcJJAAA6mElEQVR4nO3deXhkZZ3//fc5p/aqpJJ0ku70Dr0C3SzdKKA0jSO4AD/FGRX4qaO4gA/qAKOjMzI6o/KM/hxFnHHEbR4ZUBGXYccBEUHQXyOyydbQC/RCks6e1H5OnXOeP6o7vaXS6aZSlVQ+r+vqK1Sdu879PUnq4lN37vs+hu/7PiIiIiIiUhFmrQsQEREREaknCtgiIiIiIhWkgC0iIiIiUkEK2CIiIiIiFaSALSIiIiJSQQrYIiIiIiIVpIAtIiIiIlJBCtgiIiI... | null | [
"iVBORw0KGgoAAAANSUhEUgAABKIAAADhCAYAAAD75x1bAABhr0lEQVR4nO3dd5xU9fX/8de902e2LwssXURAREUxihUrtqjEaMSvJmpC1Jjkp0aTWNJjojHGxNRv1HxjNGoMGlARS9RgDTbshV6WsmyfLdPvvb8/BnZYt7ALuzNb3s/HYx/L3Pu59557YNm5Zz7FcBzHQUREREREeoVhGLkOQUREpN8ycx2AiIiIiIiIiIgMDSpEiYiIiIiIiIhIVqgQJSIiIiIiIiIiWaFClIiIiIiIiIiIZIUKUSIiIiIiIiIikhUqRImIiIi... | 1 |
math | kindergarten | addition-sentences-up-to-5-which-model-matches | true | false | Which shows 2+2=4? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAABKCAYAAAAi2W96AAALAElEQVR4nO2dS2zcxh2Hvxm+9inJlh+SHThGYtlxHTtOlMKJ0xx6cYqiOQW5BEVOQXNJWxgoemp76KUICqSXoHV7aw99HZsgBXoK0gYJ3BpBYrepZTdwHtbL1mO1by450wMlW5Ll9VJarrgMP4CwJJIz8/P8OPzPcDgUWms97cLVGpR98DQpKbHDFFA0YCwHe20Q002tzy9td7FSUjrn1ACYV2rBL6M2HMkHrk5JiRtlHy5XYcqFiRrIJS/YkZo2Jc4UjcCjABU... | 1 |
math | grade-1 | square-corners | true | false | Which shape has 4 square corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAElElEQVR4nO3cz2vbdRzH8dc3abIubdMmbVoFES9VFC9eNsSbIog4BdkI/g3+Pf4N0m3I3JwIRW8i9OJNnfUgItg2ze82a9N+8/EQC1WrxDW+vvnxfFzakJK8IU9etzQKIYSdrvRTR2rH0mkQcGkzkbSQltZz0lpWinaOQ9hqJX0WJtn1vDSz3ek/eDorvTDXrxC4rHYsPTqUfutKP3akVOu0/wSRYZgW0v2mJOkgllLxuSeAYTpr6iRIqWRPwbQgNFgQGiwIDRa... | 1 |
math | grade-8 | multiply-polynomials-using-algebra-tiles | false | true | Which multiplication expression does this area model represent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFaCAYAAAAkQypLAAAdQklEQVR4nO3dbWyd5XkH8Ou8mBibmARicJwMaEx5SbuoiZcWRNmmtumSCrWakCZaVaqQ9qHSSlshtA/Rto9om7S3TlEREpq6dhsrpROTNjwsljaMNoXFISUJL2lM4ja2YwccO7YTv5xz9oE1jfNWxed2jh+f3+/buS10XfkrUv66eZ7jXKVSqQQAAJBEvtYLAADAUqJgAwBAQsWLHfb0TcfgWPlq75J5bS352HTLNRf9mUzn57KZDnfHwGRv8pmrm9bFptYtdT0TAJi... | [
"(2x+3)(2x+3)",
"(x+3)(2x+3)",
"(2x+3)(3x+3)",
"(x+3)(3x+3)"
] | null | 2 |
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