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 | factor-quadratics-using-algebra-tiles | true | false | Which area model represents the factorization $3 x^{2}+8 x+4=(x+2)(3 x+2) ?$ | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAQAAAAFyCAYAAAAamASsAAAWQklEQVR4nO3dbWxU55nG8cszHvMyxubFgI1NTQwUwksKJlkqSilNQAGSVKWhH1KlQWpXq7SQZCt1RSN2paqtGvVDo22rVkLdUKlVhJJAouadOLQEWmiKMwYHDARwcW1sB4Y1dmwcY8+Z/eDYaxwg9syYk/Pc/98X4gOe+9GlM9ecc0x4spLJZLL5inT6svRBQupJCoCjsrOkcWFp5lipKEfKau5KJv/e5veyANxst+dJ2acu935RlCPNifa2AwA3fZCQTnZITVe... | 1 |
science | grade-4 | read-a-thermometer | false | true | Select the temperature shown by this thermometer. | "iVBORw0KGgoAAAANSUhEUgAAAUkAAAQxCAYAAACjw3+jAADPuElEQVR4nOzdd1hT1//A8XcmAcKeslRAwQXuvRW3tXVU66jWDrtbW6tt7d7L7vZra5ejddVR27r3xokTFUVkyN4rhCT390ckEoEA1tVfz+t5fCT3nnXX555z7g3IJEmSEARBEKolv90NEARBuJOJICkIgmCDCJKCIAg2iCApCIJggwiSgiAINoggKQiCYIMIkoIgCDaIICkIgmCDCJKCIAg2KM9gvN1tEARBuGOJnqQgCIINIkgKgiDYIIKkIAiCDSJICoIg2CCCpCA... | [
"80°F",
"70°F",
"75°F",
"72°F"
] | null | 1 |
math | grade-1 | more-less-and-equally-likely | false | true | On which color is the spinner less likely to land? | "iVBORw0KGgoAAAANSUhEUgAAAcEAAABkCAYAAAD+HYsBAAAPRUlEQVR4nO3de3RTdYIH8G/apjTp66ZNFZAWWtQiLS0kQTiMLwrMzC4vgUFoKXgQHzMqyO4iOusiO+6Oi+Ce4+7MnF1nRGcdmjoMuLwdESwoHhSSQF8jyKM8ijvQltwkbZM+s3+s7OnQtE3Sm9yb5vs5h8M5be/vfvPX9+T+Hlfl9Xq9ICIiikIxcgcgIiKSC0uQiIiiFkuQiIiiVpzcAYLR0tIK0SFCtIuwiyIcoggASBUE6AQBgk6AkCogMVErb1AiIlI0RZdgQ0M... | [
"neither; white and yellow are equally likely",
"white",
"yellow"
] | null | 1 |
math | algebra-1 | identify-direct-variation-and-inverse-variation | true | false | Which equation shows inverse variation? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAEsAAAAWCAYAAACIXmHDAAAFIElEQVR4nO2YXUhTbxzHv3tDu7FSERXCl7k2wsSLVqOkib2oN/k22UVvKCFCiHZRUFgXEeGNoGCUJIkgJNOZoEGEIZp1Z0usbDeNmWw328qNdCTb938Re/if5vmTZvYX/MADO9/fy3me3/Nyzo6CJLHDL6H82x3YTuwUax3sFGsd7BRrHewUax0oAWB0dBQKhSKutbe3S5zv37+PgoICpKen48KFCwiFQn+l038Sj8eDyspKpKSk4PDhw7Db7cKmBoAvX75ApVJ... | 1 |
math | grade-1 | two-dimensional-and-three-dimensional-shapes | true | false | Which shape is three-dimensional? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAcXElEQVR4nO2d2W8c2XWHf71wE/ddIimRIqmFpDSLRhrN6vGMJY7GiZM4cewsTh7yD+QlgN/yECAvQRAgQF7yYiDIQxAgCWA7sSGNx/bMePbFI8+Q1MZN4iY21+bS7D0PvypWkWqSLbKr7q3i+YBG02wNq0z21+fce889N5DNZrMzCeDeOrCSBlJZCILgEOEAUBkCTh0BmouBwEw8m/04qvq2BOHwcbkKCN9d5/84VgycKaedgiA4w0oauL0GTCeAO+tAMJriCyK... | 0 |
science | grade-2 | compare-temperatures-on-thermometers | true | false | Select the thermometer that shows the higher temperature. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHEAAAFICAYAAABnfBEBAAATCUlEQVR4nO2dbWwb933Hv6RIWZbEW2Jn8gMva5Mqri4varVuyADpBmQhgyBB4kgZhr2gTCXYA8KZKLYOE2F278aABtZhBR2hL4aNjAQM3YIT4gGDB14WbEsRUMGGDShyivO0AXd2kjZzfbRl8fH2guVFlEVKoo6U9LvfBxAkHo/Hv/DF9/4P/PL3d5mmaX5aBj5cBYo1oGqC2cd4XIBvAHhoGDg22Djm+rRkmsvG3jaM6Y6gAIwNAp4PVhsHTgwCXx9pqMzsX4o... | 1 |
math | grade-7 | identify-alternate-interior-and-alternate-exterior-angles | false | true | \line{HJ} and \line{KM} are parallel lines. Which angles are alternate interior angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADSCAYAAABw17dKAAAa9klEQVR4nO3dfXBU5fnG8evEQNLykqQJAmEqkRfrBJCVBE3AziYD1amlJal9sUlH1tJObRUSSxlxLDaVam3r6CItMlXaTSu02pZsW5lWKwPUWjKYExLSoHUgrKhDO0nYpcNikEh+f/jLlkjCS3J2z+4538/Mzsg+8JybYc54cfOccxt9fX19AgAAAGCJNLsLAAAAAJyEgA0AAABYiIANAAAAWIiADQAAAFiIgI2kdObMGT399NO66aablJ+fr4yMDH30ox/V7bffrsO... | [
"\\angle{HIL} and \\angle{JIG}",
"\\angle{HIL} and \\angle{MLI}",
"\\angle{HIL} and \\angle{JIL}",
"\\angle{HIL} and \\angle{KLN}"
] | null | 1 |
math | algebra-1 | identify-linear-and-exponential-functions-from-graphs | false | true | What type of function does this graph show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAETCAYAAAAMFHHvAAAYG0lEQVR4nO3dX4xc9Xk38Gf8b9dj/mxf4rWTwGv7LcQrMGUtg7FViWL3ojgwSR0pOEqpoqAiFTW56gW9omkToijKRaSYRAltUCIShVaKXNkIVNQaRa127TJiCQtaSKpdJ0qwZxVnjbP/vPae92Iz4117gZndM3vmz+dz4zOzzxk/xmjPd49/5/fkkiRJAgAASMWqrBsAAIBWImADAECKBGwAAEiRgA0AACkSsFnU1NRUTE1NZd0GAEDTEbBZ1MDAQAwMDGTdBgBA0xG... | [
"linear",
"exponential"
] | null | 1 |
math | grade-5 | parallel-sides-in-quadrilaterals | false | true | How many pairs of opposite sides are parallel? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAeg0lEQVR4nO3dfZBU9Z3v8e/pp3keBhBwQUUi8gwDmo16K2XWSirW9ebhVqqslBFUfIhuEA0G1LjZumbrhqCwsoK4RkRRYnKz1GaLS5Z74+VeV+7motkIDo8jy4MTgfAo89gz0336nPsH+uvTPc3M6Z5z+td9+v366/dte6a/Jf986lefOW3Ytm0LAAAAAE+EdC8AAAAABAkBGwAAAPAQARsAAADwEAEbAAAA8BABGwAAAPAQARsAAADwEAEbAAAA8BABuwL8w9FnZcX... | [
"no pairs",
"1 pair",
"2 pairs"
] | null | 2 |
math | kindergarten | times-of-everyday-events | true | false |
Patty is brushing her teeth before bedtime. What time is it?
Choose the more likely time. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHQAAABzCAYAAABJnyafAAANU0lEQVR4nO2deXBURR7Hv2/ui8lMQi6OnAvBCIECFbnUTUSrjLiWgqUgW1uyKsq6VWrWo8QS1Noz6B6uxyq7pWK0FGRLwAMUdldYLcCVhHCEJISEI5kMmZkkc7253v4xhDfPzEzmHUNehv78k0ze+3X3vG/6192/7tdNMQzD9ASANi8wGAZCDAhjCBUFjFMCUwxAvgagemiG2T8w2sUiSMFcM6Bq9UY/FGqACmNUbcLYYTAMtHiA7gBwwgsoBkLRC0TMsck4ZVQ... | 1 |
technology | grade | photo | false | true | What type of video game console do you see here? | "iVBORw0KGgoAAAANSUhEUgAAAV4AAADUCAYAAADUd0sQAAD7xklEQVR4nOz9V5RkyXkein6xbfos72376mozPT0zwBgMOCB4pEMI5wg4EkiR0tGSoy71piXpSA86WjKQ7l1aSw+SSFGOlIgrCrw60hIIghYEwMFgMBgLYGZ6fHtTPit95rZxH2L/kZFRO6uqgQFBABVr9eqszL1jxw7zx/d/vwnGOef4AS+cczDG5P/qd/o19BlA3++Hqf+w3x/2msPcf1SOylH54SvG97sB72fRhS7nfI+Qpd90IXzYeqmoz4jjWH6vft7vXvW3o3J... | [
"Sega Saturn",
"Microsoft Xbox",
"Nintendo GameCube",
"Atari Lynx"
] | null | 3 |
math | grade-8 | classify-quadrilaterals | false | true | What name best describes this shape? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEACAYAAACJVgHaAAAvHklEQVR4nO3de3CbdZ7v+bculmRL0cWSLdvqxHaz5yzh1FQSpraZremE0Nvbqd6p5ta3aQ4FCd1LA1PpOEOfWgh0J+nmVrNNx5nUIcA2ncBhOHOY5r67bLq6BghN7UJtEadmi7A1S9vG+CJbsi62LEuWnmf/EJcQQrAT248un1dVypIlP/r6D1c++un7+31tpmmaiIiIiIjIsrBbXYCIiIiISD1RwBYRERERWUYK2CIiIiIiy0gBW0RERERkGSlgi4iIiIgsIwVsERE... | [
"square",
"rhombus",
"rectangle",
"parallelogram"
] | null | 0 |
math | kindergarten | select-two-dimensional-shapes | true | false | Which shape is a square? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAADx0lEQVR4nO3aS1ITURSH8X8SYICgMy0XoC6B3bg09+A2mDlEnYtTAqkCSbWDFgXkkUf3uefxfaN0ddWtM/hVJ31vJl3XdadX0veFNF9K152Itm5nIh3OpHf70ps9aXJ62XXHZ63HoswdvZR2vi36i7d70ocXvUKibZsvpZML6ceV9HUhTc+u+xsgoyE7nPWmJOl8KU2Xt24QDdmNqV+dNG07ClUJaGQS0MgkoJFJQCOTgEYmAY1MAhqZBDQyCWhkEtDIJKCRSUA... | 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/t0lAAAer0lEQVR4nO3df3CV5Zk38CtABVwgGSwFxJK4ykJVJDZUkTiAdWcV3Qh2p/5YO9TaorK72q1u1W1nLK3i0r5tXUu1aru1RXfr26VWZcdinSKpUIj1rKFEi60/EhRNrKsJIAIFzvtHX7NSCAXOnfPkJJ/PTGc4z53k+mb843x75z7PU5bP5/MBAAAk0S/rAAAA0Jso2AAAkJCCDQAACSnYAACQkIINAAAJKdgAAJCQgg0AAAkVrWBv27Yttm3bVqxxAACQiaIV7MbGxmh... | [
"positive trend",
"no trend",
"negative trend"
] | null | 1 |
math | kindergarten | hexagons | true | false | Which shape is a hexagon? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAIyElEQVR4nO3cTWgc9xnH8d/8Z7XozWuvpZW8K4m2oo0oRYU6JDIlSYlMXWMS503IRpTk1FNPPbXQS6Dk0FMvvfRUHFzjiLw4JJjgOE7jujgVdSCIUuQEhVbyrt5XXr1mtfOfHkZD144jO9LMM2+/z83IyGvvl9m/5nnGhm3b9kwV+HwdWLGAmg2iPUsZwD4T+F4z0JkGjJkvbXusEvTLojgbyACpz9adX+TTQF+LUyHRXq1YwMQaUKoCN9cBVak5X2Bk5KV9ptM... | 0 |
math | grade-8 | nets-of-three-dimensional-figures | true | true | Which figure will this net make? | "iVBORw0KGgoAAAANSUhEUgAAAK4AAADNCAYAAAAhbEsaAAAaMUlEQVR4nO2dX2xTV57HPyQksRPADpASSPOvhJKKbeN0GQoxFUEtmm7VNkYjLTMPq5iHFagrbfzQ1TAPK1ztwwzamalZaUagHQmjrTTT6Y4wpUKdnVKMhlCgVeO0VIQGxsYhJPxJcg2NbQIO+3C5FzsJ+eP4z732+UhIabhNTg6f/O73nHvuOQsePnz4EIFAZxRkuwECQTIsnOqTFouFqqoqrFYrVquVl156CYPBkOm2CfKQaDTKuXPn6OzspLOzk/7+fnw+36TrFky... | null | [
"iVBORw0KGgoAAAANSUhEUgAAASoAAADNCAYAAAAPDD2hAABHuklEQVR4nO29e3xc1X3u/V1r7z03SZZ8l+8yGAyliWUOwYAhtgMEQkJskrbkcohFe3Kg0ATnTfqSnJxTm/NemrRpY9ITCm+Tg2jSkktTZEgJaS6WE+xwSyxSCDYYJNuAbfBFvkgazcze+/1jrbX3HtmAbSTNSLMePsOM9sxIa/bMPP49z3rWb4kwDEMsLMYYhBCVHoLFKEJWegAWFhYWbwX3RAdbW1uZNWsWS5cuZenSpSxZsoRMJjPaY7OoQeTzeR5//HE2b97... | 0 |
math | grade-8 | base-plans | true | true | What does this object's base plan look like? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADBCAYAAAD1lcd/AAA0tElEQVR4nO3de1jUdfo38DcIhJwcVJCDKJSHFC1owVK7VrCta9NdwG1JUzdwlyjzSaFHtn4mMaTrPrv4/Ab1KlFphRbtQPsT7EJ7bFdmu/IQuDllEyrVTCJnlZGTCALPH+P3KyjgAN+Z7wy+X38FzOEm/nnPx/tz33bd3d3dICIiIiIiSdjLXQARERER0UjCgE1EREREJCEGbCIiIiIiCTFgExERERFJiAHbAnJzc+Hp6YnIyEhoNBq5yyEiIiIiM2LANiONRoPIyEj... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA3gAAADBCAYAAACdQxJuAABA0klEQVR4nO3df1zVhdn/8RcIRCB4UEEBSajU/FXSRE33nWCrx9IltGaaeg/czCyXQndWK01MV/fC3aCuUsMJu7VM1x3YjbXa4KzH/BG6xIystDiJgIA/jiioIPD943ROmD9COPA54Pv5ePRwIpxzGfzRe9f1uS63xsbGRkRERERExCnc3NyMLkGuYe5GFyAiIiIiIiLOoYAnIiIiIiLSSSjgiYiIiIiIdBIKeCIiIiIiIp2EAl47yMzMJCAggJiYGAoKCowuR0R... | 0 |
math | grade-3 | choose-the-appropriate-measuring-tool | true | false | Which tool would you use to find out how long until the baseball game starts? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAACnCAYAAADzJ6XqAAAX8ElEQVR4nO2deVQUV77HP03TgHazujS44IKaxQ0ySlQQ9wE1MW8Mjkle3mgyJm8yI0mcTBJNzHln8jRiMmfGiWZe5sVk1Dx1JuBkkokBoyMu4AIaGkVcaHcRGpC12bu73h9td2hxAy2qq6nPOXWgq7uqvhe+/bu3bt37uypBEISSZjDWQ60VLAIKCu3GWwX+ahjaHfQ+oCppEoTsGqllKXgSjwaAd2G9/UWYDzygtbtOQaG91FrhdB0UN8OZevCqsdjfUEylcC/... | 0 |
science | grade-6 | compare-concentrations-of-solutions | false | true | The diagram below is a model of two solutions. Each purple ball represents one particle of solute. Which solution has a higher concentration of purple particles? | "iVBORw0KGgoAAAANSUhEUgAAAbAAAAEVCAYAAACBn7B3AABN/UlEQVR4nO2deXwc5X3/3zN7StrVLfnCtuTbxidgA+Y24bS5QkoSeNGaNCGhSdqEJpSG/HKQQkIJgZAWEnJRWoe0mIALuJzhChDAYMf4voVt+ZBt3dKe8/z+mJ3ZWV3WsStrd7/v10v27uzuzLOj+ejzeb7PMzOaUkohCIIgCFmGfqIbIAiCIAiDQQxMEARByErEwARBEISsRAxMEARByErEwARBEISsRAxMEARByErEwARBEISsRAxMEARByErEwARBEISsRAxMEAR... | [
"neither; their concentrations are the same",
"Solution A",
"Solution B"
] | null | 0 |
science | grade-8 | use-punnett-squares-to-calculate-probabilities-of-offspring-types | false | true | In a group of guinea pigs, some individuals have brown eyes and others have red eyes. In this group, the gene for the eye color trait has two alleles. The allele for brown eyes (E) is dominant over the allele for red eyes (e). This Punnett square shows a cross between two guinea pigs. What is the probability that a gui... | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD6CAYAAADUdTPBAAAWCElEQVR4nO3dfXDV9Z3o8U+Sk4Q8IZIEBI3y4HKxK1YFtLSrqKijq717q9daa7V2q45Dvd5x2zud6fbhn8qsM1tX7XaX6Wht6/bWpV6r3bEMuytupesDjVJ1RS2oQQwP4SlCHk9Ocu4fYAShhIQDCd+8XjPOnJz8vr/z5fzMzDvf/M7vV5TP5/MBAAAkoXi4JwAAABSOwAcAgIQIfAAASIjABwCAhAh8AABIiMAHAICECHwAAEiIwAcAgIQIfAAASIjABwCAhGSGewL... | [
"4/4",
"3/4",
"1/4",
"2/4"
] | null | 3 |
math | pre-k | are-there-enough | false | true | Are there enough daisies for every butterfly? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEECAYAAAASx0PMAACFyklEQVR4nOzdd3xc1Z3//9e900czozLqsiW5SC5yNwYbcLfpkBAgIQ0SSLKbLGF3078J5JcN7G52QxKyqRuSTYDsJgECoROwcaHYBvcuybYkq5dRmaLp9/z+GGls4YqRjcf5PB8hSFPu3HvfD839cO4pmlJKIYQQQgghhBgV+vu9A0IIIYQQQlxIpMAWQgghhBBiFEmBLYQQQgghxCiSAlsIIYQQQohRJAW2EEIIIYQQo0gKbCGEEEIIIUaRFNhCCCGEEEKMIimwhRB... | [
"no",
"yes"
] | null | 0 |
math | grade-2 | match-addition-sentences-and-models-sums-to-10 | true | false | Which shows 5+2=7? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAXYAAABKCAYAAACvkX8HAAAM/0lEQVR4nO3dS2wc933A8e+8dpfkrqiYkmiJVEzRkiInfqhRBNU+uBEgC8ghBzdQEAM+pUDTInGAtEWPuRVI0CIG0qLorQVS1EmL9pD0gbhJ7bZAHdhQkzhO3EiCSEQPk6LWEbnvef17GC5fWi93lvOf3R39PoBASdyd3a/s+XF2dnbGUEqpJReu1aESgK8QQggxQmwDShacGIfpHBhLLaXeXBv00xJCCJGEc/vAvlqP/nA4Bx+ZiKa+EEKI0VEJ4Jc1eM+FK3U... | 1 |
math | grade-7 | describe-a-sequence-of-transformations | false | true | What combination of transformations is shown below? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEyCAYAAADA5Kd8AAAn5ElEQVR4nO3daXRUVdr28asqUyWEhCEYBiFAGGRGAojI5PyitqIt0k5tq6io2GKLs93yqC0NTtigoqDt0KCIItgtPM4JIqJQIRhRogkYMEBkzFyVpOq8H2LyiAKZdupQlf9vLRcmntr3VYsPda3jrrMdlmVZAgAAAGCE0+4AAAAAQCg5pGDv2rUr4AGay0y75jIztGbaNbe5zAQAwATHL7eIuN1uO7MAwCFSUlLsjgAAQL2F//oXgf5Ac7vdzWKmXXOZGVoz7Zpr10w... | [
"rotation, then reflection",
"reflection, then translation",
"rotation, then translation",
"reflection, then rotation"
] | null | 0 |
math | grade-2 | write-subtraction-sentences-to-describe-pictures-up-to-18 | false | true | Which subtraction sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAfQAAABkCAYAAABwx8J9AAAbPElEQVR4nO2de3Ab92Hnv3g/SIAkwIdISuJDUkhLtmXqQYmRLNeOU8XO2Y4t1nHMdKzYSeO4zTWTm0vmLpPJtdcmdZvYSZtp00wdK5lTEjtUm+Z1kX2WmyY1bbmmJEqiREuiniRFkwBJEACxAHb3/gAJEMQCXAALaaX5fmYw9u7vtz/8PqJGX+7u72GQZVkGIYQQQm5ojNe7A4QQQggpHgY6IYQQchNgLmXjsyePIz4bQCwwA4u7Aq71t8LsrijlV5YEeugLeugLeug... | [
"13 − 5 = 8",
"12 − 3 = 9",
"13 − 4 = 9",
"14 − 5 = 9"
] | null | 2 |
math | pre-k | represent-numbers-up-to-20 | true | false |
Which picture shows 1 oval? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIgAAABcCAYAAAC1Ff1rAAAGDklEQVR4nO3dTXMTdRzA8e8+5bFpDEmBEYplHAvqMAIDM6KgB7jqjOPBmb4Fr3DwDeihZ18C3Bxn5ArjKFCcgVG0PhRwEOiFkoSSptnsZrO7HtJAUfgnwU1Tl9/nBNOQ7u8/326a7APat/e9cK7aBkAjBDTEiywkRIMQjpZMzMvV9rokJA6hdSrQ4FK1jdndZ+zN6RybsCglJJIXWaUVcqHssVAPCAG9m4PEIQBKCY1jE1bnLyHo678gBDxuQdPWBSLE00ggQkk... | 1 |
engineer | grade-6 | identify-independent-and-dependent-variables | false | true | Hint: An independent variable is a variable whose effect you are investigating. A dependent variable is a variable that you measure. Which of the following was a dependent variable in this experiment? The passage below describes an experiment. Read the passage and think about the variables that are described. Dr. McClu... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAFOCAYAAADtpiRUAAEAAElEQVR4nOz92bPtW5bXh31m9+tWt/vT3Xtuf2/evNlWUUkVUFQJGQOyFChMYOQI22Fshx1hHmRH6A/wE4/4ybYsGULIrZBcYAzGBQWqyhSZZGVlQ3a3b0+3+73aXzc7P8zfWudmFY1QoLpyBL+IFXufs7u1fmvOMccY32aIv/AX/kLkX13/6vpX17+6/v/o+kt/6S99Jn9XA7zzc/8RITh8b2maQF9D3yp8XWL7gJLQdjV5Cc5B30KzBhmP+eLLP88fePHz/INf/0+... | [
"the amount of oxygen in the tanks",
"the species of algae"
] | null | 0 |
math | kindergarten | square-corners | true | false | Which shape has 1 square corner? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAGGUlEQVR4nO3dzU4bVxjG8cd8VUqTdteoiy7bXkKupxfUuygSLGARskFKpVhxhBWQAghFArOwxMIUgT2MGcdf49PFiASUhprj8XvOe87zW4WQ4CPlH2P8GKZijDHnQ+C0B3RzYGxANLOlCvBsEfj1CfB8BaicD4x5n7o+FoXsxQ/AUqNXvPHzCvD790WFRLPq5sBxBrSGwEkPWEjHxTsYGZXp2WLRFADc5MBCfucdRGW6bWpkgAW3R6FYMDQSwdBIBEMjEQyNRDA... | 0 |
science | grade-8 | identify-rocks-and-minerals | false | true | Chalcopyrite has the following properties:
solid
fixed crystal structure
pure substance
naturally occurring
not made by living things
metallic luster Is chalcopyrite a mineral or a rock? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAADAPUlEQVR4nOz9d5Rt+XXfB35ODjfHyvnl/Dp3A40GGgQYRSVKo7E00hIlkWtM04tKXrM0ksYKttdYM2NpjU3RHksMEkmJUUQkCHQCutEZL8fKuW7O59yT549zX3UDBJqQGyAC67tW9etXVa/qhvM9+7f3/u7vFqIoijjCEY7wdSF+px/AEY7w3YwjghzhCO+BI4Ic4QjvgSOCHOEI74EjghzhCO+BI4Ic4QjvgSOCHOEI74EjghzhCO+BI4Ic4QjvgSOCHOEI74Ejghz... | [
"rock",
"mineral"
] | null | 1 |
math | grade-1 | simple-fractions-what-fraction-does-the-shape-show | false | true | What fraction of the shape is orange? | "iVBORw0KGgoAAAANSUhEUgAAAVsAAABkCAYAAAAolJMhAAAB9klEQVR4nO3UsW1UURRF0TsjS1MB2UQ2PViiAkqgAyQacA1uAFEBNdACogZDMhkVOHqkxIz+/lheKzvZifZhrbUGgE3dzMz8/vJhnn/92PvLq3a6vZ83H7/ufQPYyHFmhPY/8Pzz+94XgA3d/D3Oj097/bjK5eFuZmbO7z/t/OTfXL593vsCsLHj3gcAXgOxBQiILUBAbAECYgsQEFuAgNgCBMQWICC2AAGxBQiILUBAbAECYgsQEFuAgNgCBMQWICC2AAGxBQiILUB... | [
"1/4",
"1/2",
"1/3",
"1/5"
] | null | 1 |
math | kindergarten | identify-pictures-with-symmetry | true | false |
Which picture has symmetry? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAeC0lEQVR4nO3dfVBbZ34v8C9O7BiQnM5Aa4suzHQvQp6+3LHEZDsD4WXvQLuw2PwTEzTxH7ZYfPHEhFlyIbXxQGAWe9ckeLDxLDZr2TuTVDJx75QXQ1s8uyCC292tjtw2m0XITja4V8K1nO1ysPzOuX9I51gY9IqkR6Df5x8L80g6MHz1POd5TRIEQZh/DNx0Afwz4KkAQkiUvJwEyF8ClCnA9i1A0vwjQfjlAuvLIiTx/OU24GWby/2FYgugSnWnkxASHfwzwHo... | 0 |
math | grade-5 | parts-of-a-circle | false | true | What is \line{KL}? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADICAYAAACdx5VnAAAmuUlEQVR4nO3deVxVdeL/8feF60UQU0RQ0pTFFdfcFTU3nGxyaSptcUqtyZpsshqd6tfUzLdpGvu2jJW2WS7ljDb1TcvMNAVzS01TEA1ExA1lExQE2X9/oKfLiJoJnHPvfT0fDx6ez+ce7n2D54/3PXzOubaKiooKAQAAAHALdrMD1AWbzVajz8d7IgAAAFiVRxR8CjkAAAA8hZfZAQAAAADUHC+bzabY2NgLHhgwYIBCQkIumE9NTZXNZtPbb7+tefPmyWazqbS0tNa... | [
"radius",
"chord",
"center"
] | null | 0 |
math | grade-4 | compare-fractions-with-like-numerators-or-denominators-using-models | false | true | Which fraction is less? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC5CAYAAAAS5EjTAAAS0ElEQVR4nO3dTWyWZb7H8V8Jcp5CSzlqoq0vNSDhZWpajdqEGNPGxTGQYEJQWbjEM+YsjG+jrASjK5wY3OCZc87OGBMIK0yMCykBIyYEbSUCCRZTUykjnuEhdvIgjOlZ0H/P006hz8t139fL/f2sZlomXjP8Ft95evW+W6ampqYEAAAAwIlFvg8AAAAApITABgAAABwisAEAAACHCGwAAADAIQJ72m+//aYdO3aot7dXy5cv1+OPP64vv/zS97EQsd9//107d+7U2rV... | [
"2/8",
"6/8"
] | null | 0 |
math | grade-3 | read-a-thermometer | false | true | What is the temperature? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAbiElEQVR4nO3df3RcZ33n8Y8UJ9SpYz+mnO1uQuJrCgGcxLrKKVmcOMwdtzRA2moGuvxoSGaGs+wWWrAUTvmx5DAjDpTN0lQSLem2nKKr0JItTTNSzsmSQsu9Q0LSLez6Ko5JQmp0Jz84W+ji66QLe5JYd/+QNbES2RnNPDNjad6vc+ZodDV67sf66+PnfOeZgTRNUwEAAACwYlM3bzY7O6taraYoihSG4Qt+boyR67rKZDLK5XJyXbeb8QAAAIC2DXR6BzuOY42Pj2t... | [
"20°C",
"15°C",
"35°C",
"25°C"
] | null | 1 |
math | grade-7 | perimeter-and-area-changes-in-scale | false | true | Look at this square: If the side lengths are doubled, then which of the following statements about its perimeter will be true? | "iVBORw0KGgoAAAANSUhEUgAAAB4AAAAOCAYAAAA45qw5AAABTUlEQVR4nOWUr6oCYRBHz66f+GeDglkMG8SivoB5lw+L7BMY1BcQFJtBs2+wYLMYxQewiUUwGAwmq7YN685tW65wr1wWw/3BhIEzHIaBMURE+EDMT0gBzPF4TDqdJpvNxnU8HpMX3+93FosFQRDEVa/XExerx+NBoVD4Eex0OjSbTfb7PafTiW63Sy6XY7PZcLvdWK1WNBqNX3O4riuO40i5XJZKpSKz2UxexfM80VpLFEVyPp9FKSW+74uIyHQ6lcFg8BanWq0WlmW... | [
"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 2:1.",
"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 4:1."
] | null | 1 |
math | grade-1 | open-and-closed-shapes | false | true | Is this shape open or closed? | "iVBORw0KGgoAAAANSUhEUgAAAQkAAABkCAYAAACVdcVUAAAKOklEQVR4nO3dT1ATWR4H8K9be4IKMAegCqkiMBeHgjJzMbkZUbxMCZHxIFxIZsdaTyQcRmvFKUOJVq0eJvGyWrKV9gIeYDeR3YuY2XhLvBgLinjZ0FsFWwV7mJ6keq7uoekWFDR/OulO9/dzpCR5Wuab937v914fe/fu3TsQER3hd0YPgIjMjSFBRJ/EkCCiT/q90QMol7izhTdiDtl8Dqm1NAAgtZ459M86O47DO+iBq/crjLqH4ezsrudQiSzhmNkLl5JcQCK9inh... | [
"open",
"closed"
] | null | 0 |
math | kindergarten | count-scattered-shapes-up-to-5 | false | true | How many shapes are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEqCAYAAABgPCRaAAAPB0lEQVR4nO3dQW7UyNvA4RfUUk7Agj0rboEQxxkJiXMgIc1xEJpbZDX7LOYESBH9LfrvD2ZIp9vtKlfVW89zgKgSv23/5FTbL47H4zEAAIAUXrZeAAAAUI7ABwCARAQ+AAAkIvABACARgQ8AAIkIfAAASETgAwBAIgIfAAASEfgAAJCIwAcAgEQEPgAAJHJovYBV/vk74uvniMfvrVfyvMNdxIdPEa/etF4JAACTGecO/ihxH3Fa49fPpzUDAMCOxgj8keJ+IfIBAGi... | [
"2",
"3",
"1",
"5"
] | null | 3 |
math | grade-3 | identify-multiplication-expressions-for-equal-groups | false | true | Which expression describes the model? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACHCAYAAAAslC4OAAAjWUlEQVR4nO3dS2xb14E38P+9fIkviaJpPUzKUowEyKzsdNFVnabAbJJv4xSYYFZfJt034yxnZtNu2mUe0/VXL4spMHUX41kNIMSz6iJxVxkgA1u2RJG2HiRFUnxffguG1/eS1Is85z4O/z9AiOjYl9fmX38ennMfWr/f74OIiIiIiITQ3d4BIiIiIiKVcIBNRERERCQQB9hERERERAJxgE1EREREJBAH2EREREREAnGATUREREQkUNDtHZDJMAx0Oh3zq91uo9PpoNf... | [
"4×2",
"2×5"
] | null | 0 |
math | pre-k | one-more-with-pictures-up-to-10 | true | true | Count the dots in this group. Which group has one more than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFACAYAAACGDgu2AAAaq0lEQVR4nO3dbYzdZZ038N88dmbamdKZFtqSbh+glKEtRCQNqI0SswRDAgm8UN7JKqK7PsUXiya72RdujApCVzFqImTF3MbVCkICCfhIihoUcIFCKaWdPtKWzvSJ6cwwnfbcLxa9F2/6n0Kvc65zzv/zed1c1/d8S9Nv/v0zp6VSqVQCAABIojV3AAAAaCYGNgAAJGRgAwBAQgY2AAAkZGADAEBCBjYAACRkYAMAQEIGNgAAJGRgAwBAQgY2AAAkZGADAEBCBjYAACR... | null | [
"iVBORw0KGgoAAAANSUhEUgAABDAAAAFYCAYAAAClCwyGAAAoDElEQVR4nO3daYyd5Xk38Gs22zPexzbYRq7BrMYGVEpJaHBbVBVRRQEJKiX5VrKwVM2iVi2J1Lf90CobDkvK2yRqQQ1VohSIkxARlYSmiRwSQSEtm40xtvECtvF4nxkP4xmf94PxK5HCPcbznPPc53l+vy/zBd33df7MHF3n73NmOiKiEQAAQCEajUbsGo14eTji8HjEmG0b4JR0d0TM7Io4ty/i9CkRHaHAAACAwux6oxFPHip7CoBqec+siO6yhwAAgCrZOHz... | 0 |
math | grade-3 | acute-obtuse-and-right-triangles | false | true | What kind of triangle is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACJCAYAAAAWnk9+AAAYHElEQVR4nO3df1jW9b3H8dcN981vQkGdZIqkZdzKL8kf6EAwmJGKU9T10zQ28+QsZ6nNZm7qmVfm8uBlNnMhgZHpieMOruNO0s44y84125ixRctJUYeNQ1GIiHDfcN/nD8OoUOPmhi83PB/X5aXev76vW/95+/b9eX9NTqfTKQAAAABu4WV0AAAAAKA/ocAGAAAA3IgCGwAAAHAjCmwAAADAjSiwAQAAADeiwAYAAADciAIbAAAAcCMKbAAAAMCNKLABAAAAN6LABgA... | [
"right",
"obtuse",
"acute"
] | null | 0 |
math | grade-3 | division-input-output-tables-find-the-rule | false | true | What is the rule for this input/output table? | "iVBORw0KGgoAAAANSUhEUgAAAMkAAABtCAYAAAALS0X9AAALXUlEQVR4nO3dbUxUVx7H8e/AACMqzwodJbBiG4qIT9VqtwVSNKvFNTWKNnaZ2ABbadyWGuMa0iCp1thQYpvRF9jUdddS7FiduAGNFRrRom0Nrrbd0rVdZVVKsYKIMjLDw90XqHVC65WC3rnM//PGeIfc/Mjc3z33AOeMwWazKQghfpUR4Ow3v9c6h7hpXEKNvB8eZFxCDT5ahxDC00lJhFAhJRFChZRECBVSEiFUSEmEUCElEUKFUesA/RH3cACLl4UD8PamRpxO+T3... | [
"÷ 3",
"÷ 1",
"÷ 2",
"÷ 6"
] | null | 0 |
math | grade-3 | fractions-of-a-group-denominators-2-3-4-6-8 | false | true | What fraction of the shapes are circles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABKCAYAAACB4iNkAAANd0lEQVR4nO3dXXBU93nH8R/Srl52tdoXvbhGkrWyXCgSnibp8Ja6E+xMzaRNb1yD0zvPJPEFvgmF5BZ8G5zCjXXRNB1yZwPuuONpWtypI09phcR04k7YJSgILZaE65XQvmlXQrsSvZCFhW2slz2vu98PV0Kjc57zzDNznjnP//zPtvv3798XAAAAAEPU2B0AAAAAUElosAEAAAAD0WADAAAABvLYHQA2Jz59RZKUX8xKkvx1zZKkvrb9tsUEAACAz9BgO1QiHdPVqX9... | [
"1/4",
"6/8",
"5/6",
"2/4"
] | null | 0 |
math | kindergarten | cylinders | true | false | Which shape is a cylinder? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAMBklEQVR4nO3dW0xb9x3A8a8BgzEQE0gDISTQNglpqiXdmjZdtSZtp3bTtrTVpOVl6rSX3aSu21PfVlWbJk3by6ZO2v1h615aTZqStOpUrbekanPVQtquMaQDcgETLsGADcY43sPP7jlcQrFzOfyOfx/JOuZgwh/8zd/nHJ+TBLLZbDY2A2eTMJGB2SzGrDgVAagrh81haKqEQCyVzR4b93pYxizfrlVQ0Z2UD9ZVQkeNVG3MSjORgWgCBmagKwll47PyCYvWrGR... | 0 |
math | grade-1 | select-three-dimensional-shapes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAWM0lEQVR4nO2dTXAU13bH//d2t2Y0GiFpJL4lATHIBa9gKLsq4IXDQ4k3uGwvbN4KyAaXUxWbV7y8bBKTDa7KInE9nu0sYuxFwLvYC+PAikDAC7AXLiRXmbIkPxAaJB5oRiM0n5rue7O40z0aaST00Z8z97fR0GpuH8399+1zT597LuGc80ezwEgOmDEAnUMi8R0qAVoVYFcE2NgEkEdFzr9/6rVZEsnyObAOUIdz4h+bm4DnW4SqJRK/MWMAP2eBiVlgKAfQp7r... | 2 |
science | grade-7 | 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 | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAXVElEQVR4nO3de3Rc5X3u8e+798xoRhdLtmRLsi0bMDYXGzABYgikMQXOCWkgoSdpE3I5XUnarHPanEuzcmlCmqw0TWlCWE2b9JK2pCcBcus6wQFKoJBAGiBgDBgMvhv5KsmyLFm3ue799o89ulpWBkvas0d+PmuxtDzMjN6Zd8+z3/1731djrLW2Mwd7hmHAg4JFRGRWxAzUubC6GpoTYDqz1j7bX+5mich8t2EBxHYPB/9oTcB5NUEaiYjMhgEPdg5BRw52DYP... | 1 |
math | grade-1 | shapes-of-everyday-objects | true | false | Which is shaped like a cylinder? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIUAAACFCAYAAAB12js8AAATnklEQVR4nO2deZAcV33HP90997mzM3tod7Varda6LMmysSVbtoSxJVshQHBIYUhRECCkkiIhTqWohCQUAipUkoIADjm5QlUIpgxJgQ1lGwcMtmUj2ZZs2bIsr6TVrnZ39pyde6anu1/+mJ29Zg9Juz0zu+pPlTSa7v6991O/b7/jN++9loQQIqpCdwaSOmgCi2sMmwR+Ba7zQJMDpGheiGOJartlUSvsDYDtzUzxyzoHbPEWFWNxbZHU4Y00DKpwNgNyQiuesAR... | 1 |
math | pre-k | triangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACJCAYAAADUvSEiAAACSElEQVR4nO3UO25UQRBA0ZrxJ+CbgQgIgSWwLy+EhbEDPhkBJrXBEsajR/CERO7RHTScE3WrpVIFV71ZlmW5vJ35fDNzvZu5Wwbu7XQz8/hk5tWDmefnM5vLn8vy/urQa3HM3j6ZOf10s15enM+8ebhWCPd1vZv58GPm6+3Mx5uZ7dXd+iAy9unxydrUzMz33cx299cD7NOfpn4tM9vDrsL/QmgkhEZCaCSERkJoJIRGQmgkhEZCaCSERkJoJIRGQmgkhEZCaCS... | 1 |
math | calculus | describe-linear-and-exponential-growth-and-decay | false | true | How does h(t) change over the interval from t=
–
9 to t=
–
7? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAByt0lEQVR4nO39e3RT97kv/H6nbpZsGcsXkMHEJoRAa7ABAyFcDYUEEkIaaLJIO9IGQi/pbtqze96z1tvd0b32and2RvdYbddpVtLVlQRI2rdnd4fdJKsBDIFgLjUBggMGG0IcB4wN+CIsy5J1mVOa8/why7HDxRLMnyXZ388YGa2F5teP57SmHj3+aUrSNE0DERERERHpwpDsAoiIiIiIRhI22EREREREOmKDTURERESkIzbYRDTImjVrsH379hv+29GjR3H//fdDURQ... | [
"h(t) decreases by a factor of 4",
"h(t) decreases by 6",
"h(t) decreases by 2",
"h(t) decreases by 4"
] | null | 3 |
math | algebra-1 | special-right-triangles | false | true | Find s. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACsCAYAAABB/9v7AAAcTUlEQVR4nO3de3DU9f3v8dd3d3MBAiGR7AYOtwDyY/Sg/H4jFx2BwCh4CwEPRVp/M1UZOWPPHHS8/EpplQGOqRVvg+PYAamXFksBKwH5CXWOguRg1XqB2B5qIQGaYy5ISLgmm/1+v+ePb3aTGCK57OW7yfMxk4Eku9nvLv7xysv3vj+Gbdu2AAAAAESFJ9EXAAAAAPQmBGwAAAAgigjYAAAAQBQRsAEAAIAoImADAAAAUUTABgAAAKKIgA0AAABEEQEbAAAAiCJfoi8... | [
"4 millimeters",
"$2 \\sqrt{2}$ millimeters",
"$4 \\sqrt{6}$ millimeters",
"8 millimeters"
] | null | 0 |
math | grade-8 | nets-of-three-dimensional-figures | true | true | Which figure will this net make? | "iVBORw0KGgoAAAANSUhEUgAAAMYAAADNCAYAAADjXA+eAAAPP0lEQVR4nO3dX2gb557G8a+XkuCLtURpCQd3g7LJUghrqqSQEwh0FDgtbjhdy+0utFloZXohL7RILtvEsE0tl5T8g0amgbUviu1epIfdbT0mB2MaaKRSQ1poLFDp7jmNGx0TQ0sOYeQbod5kL9SZ2NZrW7Yky3+ez81gR0i/AT/5zcz76n2bHjx48AARWeRvGl2AyGb0SKMLkJ0llUrR1NREKpXyfl54DIVCxqNlWRtXJNCkSympJ8dxGB0dJZVKYdt2Ve/V0dHB8eP... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUIAAADNCAYAAADNPHklAAAZfklEQVR4nO3df3DU9b3v8WcQkua0ZPdy9XK9QVgERdGYFVpAc8oujj+QI2Zja6/aHlmOtzeZM3iSeK4/5raVpdop6FQ2R6dDZq7Dxt6LnbaSjfZgFKfucqQSrLIYhaMGu0BS7ZXD/W6w5iTZJfePdb8QEiCQ3Xw3+b4eM/abQGb3/XHNq+/v9/v5fL4FAwMDA4jIIAUFBVaXIGNoktUFiIhYbbLVBYi9RCIRCgoKiEQi5vcnH71e77BHj8czdkWK7RTo1FhyyTA... | 0 |
math | kindergarten | count-scattered-shapes-up-to-5 | false | true | How many shapes are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD7CAYAAAAfKeBkAAAhrUlEQVR4nO3de2zd9X3/8de5+cQ+9rGdY59zfGzHceIkTpz4hpMcdwQbE0JC7ErbJNCkahWrRNT9s0mokZgEmoo0JCqk7Z9p4aeO8VOnCjStEnZayoAWbcWGpbmxpCx1SgHbceLc6lwcJ7bP74/i/ggE4sv5fj/fy/PxJ5HPeXEE6OXD67xPIJfL5QQAAADAE4KmAwAAAADIHwo+AAAA4CEUfAAAAMBDKPgAAACAh1DwAQAAAA+h4AMAAAAeQsEHAAAAPISCDwAAAHg... | [
"5",
"3",
"4",
"2"
] | null | 2 |
math | grade-8 | nets-of-three-dimensional-figures | true | true | Which figure will this net make? | "iVBORw0KGgoAAAANSUhEUgAAAM0AAADECAYAAAA8s6WhAAAPQElEQVR4nO3dbUxUd74H8O8BGaVOp+VhnYrYsrLr0IvbZeXJXImCSSmQKNxdI64XvYnRGk32RXfVPpg20RtrmzTbJpusoRpfuKzttO5eMCm2vBDs4q5QqDXrpODdudVCS8cn1ulQcGA490V3sJYBzmHOw/8cv5+XxDLfqf32/59zfv8zkizLMohIsQSzAxBZzRwzX9zv9+Odd94BAGzYsAHZ2dlmxiFSRDJre+b1erFt2zaEQiEAgNPpxNGjR1FbW2tGHCLFDN+ehUI... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAADECAYAAAAS09MaAAAjgUlEQVR4nO3de1yUddr48c+I4AkBD4niAZIST614xN+qgT4rqU8KHTbKNKW1gz1bYZu5bVtCT2b67K6Yz2vTSsPWJxfLRNtMoZUx8feIoeBvJcFCxwQVQUUERE7z+2OcURRwYOae+56Z6/169fL1QmbuayKuvtd9f6/rqzMajUaEEFbT6XRqhyAcqJ3aAQghhJa1V/PiBQUFbNmyBYDHHnuM4OBgNcMRQojb6NQqt5OTk1mwYAEVFRUAeHt78/HHHxMTE6NGOEJ... | 0 |
science | grade-3 | identify-plants-and-animals | true | false | Select the animal. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADeCAYAAABL7FARAAEAAElEQVR4nOy9dZRd15Xu+1trw6E6xVyqklQlqcRooWXJQrNlZoqDTuyOg+0k7iTtMLUdMLaZmW2BbcmyBRazSlzMTIf23mu9P3ZJcfqq7/V9+ee9MXqN4eHS4arz7bm++c1vziW29WpdGYGowf+s/1n/n1z9HhwehOYUZJkwP9O/Xf4PcP9n/X99RQ2ojPg/D3h/v13+D3D/Z/3/YZ3EqaP/fpt5ugcay58CLVGuBi0RaIR2UXEP4Zpo2wUEIgkENKI0gqkDuL0... | 3 |
math | grade-2 | identify-halves | true | false |
Look at the colored part of each shape. Which shape shows one-half? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAARDElEQVR4nO2deXQVVZ6Av3p79gWyJ+QFQthBQthbtiaAio6ordAq7iBHegDnjD0zxzk950w73drtBBWHxdF2elrHFccRt253hXEkbGGJSci+BxKy5231av6o90KABLJUkpu8953DCZBXt37JV7fq1q9+95akKIpS44Cz7dAig0vBzyjCIEGIHiYGQowJpBq7ovzQPNxh+RkK5oeCoaBd/UecCSYFqUeDn9FDiwx5bVDtgPx20DW71G/4ZY9OQvSqW4BWGXRyl2/... | 2 |
engineer | grade-6 | identify-the-experimental-question | false | true | Identify the question that Tristan's experiment can best answer. The passage below describes an experiment. Read the passage and then follow the instructions below. Tristan divided 40 unripe bananas evenly among eight paper bags and sealed the bags. He poked 20 small holes in four of the bags and left the other four wi... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAEICAYAAAA0p80lAAEAAElEQVR4nOz92bMtyZXeif18iIi9z3jnm3MiMzEUCigUamAXq1BdZLFbJCWzVssoWUsm05tMT/2/tOlJb7LWi14klZpqmfVA0kgWa0KNKBRmZCaQmUBOdzzTHiLC3ZcelnuE731PgnoREjJjJA7OuXuI8HH5Gr71LfNf/pf/pfAfrv9w/YfrP1z/f3T9V//Vf/WpPNcD/ODr/5phGBjHEWMMhgRA6xvatkWIDMOASQnnHMYYYow45/T9lHZuaozZ+S0iOOem75bLWos... | [
"Do bananas develop more brown spots if they are kept in bags with holes compared to bags without holes?",
"Do bananas develop more brown spots when they are kept at room temperature compared to in a cold refrigerator?"
] | null | 0 |
math | grade-6 | changes-in-mean-median-mode-and-range | false | true | Look at this set of 8 numbers: How would the mean change if the number 30 replaced one of the 22's in the set? | "iVBORw0KGgoAAAANSUhEUgAAAT0AAAAkCAYAAAD7Ne16AAALMUlEQVR4nO2ceVSVZR7HP3dh3zdBQTZRAcVdRHDD3JJkTOuUzVSmNU7mZLbNVKdOU2Yz53TsZB3NqTNttrmkJplbbrgACgIKoiyiooig7HDlLu/8cfHmFVCU+15mvM/nH875Pb+X5wv3+/ye9/29730VkiRJAFqDgUadHoMkISEQCAT//ygApUKBi1qFnVJpjEmSJDXp9DTr9d2rTiAQCGTESaXCWa1CqTVIouAJBIJ7nma9Hq1BQtms13W3FoFAILAKzXodSp1BdPA... | [
"decrease",
"no change",
"increase"
] | null | 2 |
math | kindergarten | count-scattered-shapes-up-to-5 | false | true | How many shapes are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEZCAYAAADi0lFZAAAO20lEQVR4nO3dQU7jQBqG4SJ4SUuzY5H7NBHXmDui0PfJgnWzDMkskAXTEOwktqvqr+c5QLelz2q/XTjh5ng8HhMAABDCKvcFAAAA0xH4AAAQiMAHAIBABD4AAAQi8AEAIBCBDwAAgQh8AAAIROADAEAgAh8AAAIR+AAAEIjABwCAQAQ+AAAEIvABACAQgQ8AAIF0uS9gbi8vb+np6W/a73Nfyc+6LqXHx1/p/v4296UAAFCx0Cf4tcR9Sint9yk9Pf1NLy9vuS8FAIC... | [
"1",
"5",
"2",
"3"
] | null | 1 |
math | grade-5 | 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? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAAAwzUlEQVR4nO2deZxcVZn3f885997al96rOwlrEBUXREBlXEBl2HcIS0IQBgdlHB3H2fB9dTKOo7PpuAPisISEJUIAZREVEV83JI6oCIoQYJJ0V3e6u/btLud5/6h0kk4vVbe6OlXVud/Phw/p7rM851b97tme8xzAw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw2N2qNUGHOjkNg59yLLVB5TDBzGTBAA... | [
"1\n9\n of a full turn",
"1\n10\n of a full turn",
"1\n8\n of a full turn",
"1\n11\n of a full turn"
] | null | 2 |
science | grade-7 | identify-ecosystems | true | false | Select the hot desert ecosystem. This ecosystem has:
a small amount of rain
dry, thin soil
many different types of organisms 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... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACtCAYAAAD2xRSHAAEAAElEQVR4nOz9d5Rl+VnY/X53OvvkHKrqVA5d1Tm3emZ6erJGOcJIMkIkkV8DtoUtjK+5C99r5ItfDCIJJCMUEIwQSCOhMJo8PT090zlWzuHUyTnu+P5Ro15ug8H4vtCs1+ez1lmrT++zd+19qn5Vz/nt3/M8woWKbU96wCfR1dXV1dXV1dXV9Q+iZsJcA4SqYdvdwLOrq6urq6urq+sfWs0EwbZt+26fSFdXV1dXV1dX1/8e5P/2yf53jFKtVtneLKAqEiIStm4... | 1 |
math | grade-7 | identify-reflections-rotations-and-translations | false | true | Look at this shape: Which image shows a translation? | "iVBORw0KGgoAAAANSUhEUgAABbAAAAC3CAYAAADD5XikAAAcFElEQVR4nO3de7TVdZ3w8Y+KchO8hOjePOhUT0vMS+guohEr8II82iIMT1ZeGB3XrEctC5/yQiu0NVnWKgdNn0YbUydzKaN4Sc28P1qCujFzYHDGFBF/OxUYFLmlwvMHne0BD9fz++3f/u39eq3Fap/D5rM//TigvPn629tFxNoAAABSsXatf70GAIC0bJ/3AgAAAAAA0B0BGwAAAACApiRgAwAAAADQlARsAAAAAACakoANAAAAAEBTErABAAAAAGhKAjYAAAAAAE1... | [
"C",
"B",
"A"
] | null | 2 |
math | kindergarten | match-analog-and-digital-clocks | true | true | Look at the digital clock: Which analog clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABaCAYAAACCNCH/AAAJf0lEQVR4nO3dQWxb930H8J8sx16EwGKRJgMGzAy2y05kl8HIwagCDI6MYVNOhQd0prGDSSAAPRSI5B26YQjiAkEtXyqfJJ9EYgcjwDZxF7m7xIfBSS7TK9BmDYpEWAfYiNOSqRrbcRruoEjRpEjio59IUf58TuYjf3pf3b76+8/3H2q32+0AAAAycajfAQAA4CBRsAEAIEMKNgAAZEjBBgCADCnYAACQIQUbAAAypGADAECGDnf6wU9/8Vl88l/3ov25x2bz9Q4dHYp... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA7gAAADgCAYAAAApDMpcAABIfElEQVR4nO3dfVyT970//le4SwAhYYKIdwlgi2hLorZqtUKwVbuqLbZd13VS6Vl125mduLY752zdxLPtnN9Z2yOdPee7ac8KarutNytqbafWGrDettWAFcUWCFZFBCUBhYTb3x80lJhcV27IDYTX8/HggeTzua7rbYl98OJzJwHQCyIiIiIi8ore3l5c7gC+bANau4Eu/rRN5DNhEiAmFLglCkiMACRgwCUiIiIi8prLll4cbwl0FUQjz+xYICzQRRARERERBZM... | 1 |
math | algebra-1 | identify-direct-variation-and-inverse-variation | true | false | Which table shows inverse variation? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdwAAAA/CAYAAABKBHltAAANfklEQVR4nO3de1BV5d4H8O8CIuSOgGLekUEQTBNJsTY3E7kPBgE7h5iDMU7lMF6ayst4PWUH5K3xEqAcI06pCOEkKeloWWi+4wFqDipsO+KL4gFF2IGiWwXW+wfTnnbA0cbFWnvD9zOz/tjPs9zP1/m5+bGevddWyPXOF0FERESDygIAlpYvUTrHY8uL+DuWXjSdvMNd3jTWy5SwXqaF9TItZkoHICIiGg7YcImIiGTAhktERCQDNlwiIiIZsOESERHJgA2XiIh... | 1 |
math | grade-3 | interpret-line-graphs | false | true | A national trucking company carefully monitored U.S. gas prices throughout the year. In which month did a gallon of gas cost $3? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAGRCAYAAABfbMQ8AAB9pUlEQVR4nOzdeXiU5b3/8ffMZCcLZA8kYQ0JW9ghAdkFURYXQHFrXWtte7A97bH2/Hrantr2HFu1pda2ttZarVpBQIEgW9gMe0ICSSAJ2QPZQ/Ztkpn5/cHJ1JSgoCETks/rurgkM8/M853HAT5zz/e+b4PNZrMhIiIiIiLdwujoAkRERERE+hInRxcgN7/Nmzeza9cuRo4cybPPPtvpvtzcXF544QUAXnrpJTw9Pbt8jqqqKrZv305GRga1tbUYDAb8/PyYNGkSK1a... | [
"November",
"July",
"August",
"October"
] | null | 3 |
math | grade-4 | transportation-schedules | false | true | Look at the following schedule: Savannah just missed the 10:30 A.M. train at downtown. What time is the next train? | "iVBORw0KGgoAAAANSUhEUgAAAjQAAAEkCAYAAAA4tasFAADMPElEQVR4nOydeVyN2RvAv7e9tNqXiEIkW5KQrcSgiEjKkt3YzTASM5gxxtaM3ViGslWSPZIt26hkGfu+ZMkulaRu9fvj6nLdW12GMf3mfD+f96N7lud9zut57/u8z3nOuRKz5S65CAQCgUAgEBRhtADmufl/aT0EAoFAIBAIPopRO2ag8aWVEAgEAoFAIPi7CIdGIBAIBAJBkUc4NAKBQCAQCIo8wqERCAQCgUBQ5BEOjUAgEAgEgiKPcGgEAoFAIBAUeYRDIxAIBAK... | [
"1:30 P.M.",
"10:15 A.M.",
"1:00 P.M.",
"2:00 P.M."
] | null | 2 |
math | grade-5 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD7CAYAAABQdOO0AAAmS0lEQVR4nO3de3xU5b3v8e+aTMKEhCQEQggXE0kABQFRiAK1Qr2htVUR8NLdvra79qjbUz1eQKrV7nZXa8Ha2vYc7UXt1noDS7VeWqEqoshFUC5aQMIlQAhJIPfLkExmnT8SnwRbISQz80xmPu+/fs/qZK3vH/LqN5O1nuW4rusKAAAAQEh4bAcAAAAAYgkFGwAAAAghCjYAAAAQQhRsAAAAIIQo2AAAAEAIUbABAACAEKJgAwAAACFEwUZU+O3WO7Vw4zdV01xhOwo... | [
"yes",
"no"
] | null | 1 |
math | grade-3 | identify-rhombuses | false | true | Is this quadrilateral a rhombus? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEVCAYAAADaTZLyAAAo9ElEQVR4nO3de3Cc9X3v8c+zu9JKu9Lqaku2rAuOqR1cUgOBAEmhxA4QZpKm0yaZDDjTCWOTgAs0tFBAxja+EAIF2iY9Kak5zOEwhwRm4PQk4BLcxk5pTEgxJQZCAGNdrPtltbva1a6kfc4ftne10loXe/U8e3m//uL3eOX92iOjj37PR7/HME3TFAAAAICMcNg9AAAAAJBPCNgAAABABhGwAQAAgAxy2T0AUKgeeeQRvfbaa2l/bcOGDdq0aZPFEwEAgEwgYAM2+fK... | [
"no",
"yes"
] | null | 0 |
math | calculus | determine-continuity-using-graphs | false | true | Is f(x) continuous at x= – 3? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB0OklEQVR4nO3dfXhU9Z03/vc8ZiZPTMgzwSQCggJJBEUFiejiU2tFobrY3tXate7arXXbu+29/XVrr92W9e7ere3Wqu3d1q1iu9tbt1ZEjYiCQIMSiBBIQAwB8kDIwyQzk3k8D3PO749hYsLjDDnfTCZ5v66LiyuTOZ/55pw53/M53/M532PSdV0HEREREREZwpzqBhARERERTSZMsImIiIiIDMQEm4iIiIjIQEywiWiULVu2oLKyEnfccQcA4M4778Sf//zns75XURR... | [
"yes",
"no"
] | null | 1 |
math | grade-3 | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABfzUlEQVR4nO3de1iUddoH8C+IgwLjgeHgkIcBFTwwnbAAM0EptRLNQ6X0tie03doKOmgb7G61u9hxW6ht30rd6q3QSjLFNqVQUBMoscOgBuowmg4OMp6GQRlQ3j/YmRiZwzMnZoDv57q8ZOb5Pc/zE2euuef33M99+3V0dHSAiIiIiIjcwt/bEyAiIiIi6ksYYBMRERERuREDbCIiIiIiN2KATURERETkRgywiYiIiIjcKMDbEyDvu2C4hJbWdugvtnf+3dr5d8AAfwQ... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5AAAAEJCAYAAADiusiGAABrW0lEQVR4nO3de1iUZfoH8C+IgwKjxnAQSh1QQZPRigowFRRTa0Mr3VKK9oC41VralrZhu9Vu2LkFq/21orttGrqbZoptSqGgJlBS6eABtGE0HQQZFYdBGVB+f9BMDMzhnWEOMHw/1+UlzPu873s7zezOPffz3I9XW1tbG4iIiIiIyCG8vLzcHQKR03i7OwAiIiIiIiLqHZhAEhERERERkSBMIImIiIiIiEgQJpBEREREREQkCBNIIiIiIiIiEsTH3QGQ+13WXUV... | 2 |
science | grade-3 | predict-temperature-changes | true | true | Two identical blocks are heated to different temperatures. The blocks are placed so that they touch each other. Heat can flow from one block to another but cannot escape from the blocks. Later, the temperature of each block is measured again. Which pair of temperatures is possible? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAACgCAYAAADq8hJGAAAX8klEQVR4nO3dfXAc933f8ffu3vMT7oDDMwE+SKQoS7Ip2U4kh5Jt2XLkiWQ59riq22Yy8WQmyXT6MH3wH5Hb6bRuMmmnHaedqZtpXTtuGtt17Eh2bMmyHEt2FMmm6oixJZkiSOL5gQDu+fl299c/9rAgCBA8kAD2AHxfMxySi7vDAt+9z+5+93f705RSCiGEAHSvV0AI0TkkEIQQLgkEIYRLAkEI4ZJAEEK4JBCEEC4JBCGESwJBCOGSQBBCuCQQhBAuCQQhhEsCQQj... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAiAAAAC4CAYAAADaI1cbAAAkBklEQVR4nO3dfZAkZ30f8G93z/v77M6+v9ze6W51OklICAESloQlJBBlhDAUyNihXFBOGcqFk0owrlg4SSVgl5NKAk5VCFUhYGKMeOd0gJAQIMCyJO4AnYVeTre3t+/vO+/v091P/uiZ2Zt9u9m72e6e2e+nSrW6udnZ5/Z59rff7v71MxIAASIiAEIILJWBiTyQ0QCV1YGIWsQhAUEFOOYD+lyABAYQIqpaKgn8Im31KIio070xBDisHgQR2cf5vPFxwAVc6ze... | 1 |
math | grade-2 | place-value-up-to-thousands | false | true | What is the value of the underlined digit? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAAiCAYAAABlRa5TAAAGZ0lEQVR4nO3dW0hUXx/G8Wcss9JS0443KoUdIEjsIjITjSiLqBs1kTIsy7IyocNFJQUFUSFGWUGHYS4ESSgQojKhsoNR5KRWBlqWSQhZWU2WqTPvRbz7bTda6n/+Ki/fDwiz1/79Zta6e1hs97K4XC6XAAAAAHiE10BPAAAAAPh/QsAGAAAAPIiADQAAAHgQARsAAADwIAI2AAAA4EEEbAAAAMCDCNgAAACABxGwAQAAAA/qNmAnJCTIYrEYf2FhYV3Wtbe3Kz8/XzE... | [
"80",
"8",
"800"
] | null | 1 |
science | grade-3 | compare-properties-of-materials | true | false | Which is harder? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AABUuklEQVR4nO39eYxk2X2YC37nnLvGjX3JPSuXqqy9a+nqlWyuzUUURdEmqSdZhgQ8w/LDPBiegTUGDBsDDGD/MQ8DG5I1gAd6lP1MeaxnUZZEUiKlbpLNbva+VS+1r7mvkRn7ctczf0R1S6Qlc+vqTkrxAYnIvBEZcW/EF2f9nd8RLzW0PuJBRjFkyLtKK4arHdgIoGDAI/nBcTkUcsh7RUbBEW/wezv+i+NyKOSQ95K3/Av1XxyT782pDBny1zOUcsi+YyjlkH3... | 0 |
math | grade-6 | identify-complementary-supplementary-vertical-adjacent-and-congruent-angles | false | true | Which angles are vertical to each other? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADRCAYAAAD2Q8XkAAAYWklEQVR4nO3da2yTh9nG8YsUl7mjcsYaSiesJAItYymNs7QEYpccWq1LFCkZ1RRQhUimSYFtgaCpgnatCt0q0g8ToZNG6JAatAPJ1kGQopptVeqsdoEV9jig0nlixdRUm5YN7EooAo/wfmDx24RADth+fPj/vpHY1p1vF7fu6/GcGzdu3BAAAACAuMgxewAgVXR3d2vHjh1mjwEAANIcARtZz+PxaNmyZWppaZHD4TB7HAAAkObmcCKCbBUMBtXS0iKPxxP72eXLl5W... | [
"\\angle{4} and \\angle{2}",
"\\angle{3} and \\angle{2}",
"\\angle{1} and \\angle{4}",
"\\angle{2} and \\angle{1}"
] | null | 0 |
math | grade-8 | classify-quadrilaterals | false | true | What name best describes this shape? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAClCAYAAABm8IozAAAc+ElEQVR4nO3dfXRV9Z3v8fc5Z+8EeUoY0AoiRCJFkoAFV2e0OHfsLd6HdavS29vpVCoVr1jG0Su4LG2VWq3YCp1WrF7qEldh7Ehn+rC0dO6aB9pV763odDryGIKI4VmxFIcEEkiy9zn7/rFBIqMV4UDOSd6vtVyBkCU/ztl/fM7v9/19v5kkSRIkSZIkFUW2pxcgSZIk9SYGbEmSJKmIDNiSJElSERmwJUmSpCIyYEuSJElFZMCWJEmSisiALUmSJBWRAVuSJEkqoqC... | [
"rectangle",
"rhombus",
"trapezoid",
"parallelogram"
] | null | 3 |
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 | [
"iVBORw0KGgoAAAANSUhEUgAAAKQAAACkCAYAAAAZtYVBAAADSUlEQVR4nO3cvY5UZQDG8efMfhTIR2MkXIDSQE1h4V6A3I93oNcj9qyFDS00gL1rtHEXNmHdybE42UQaEDNnzpOd36+ZOZnk/cj8581U7zCO43hykfx6npytk8sxsDX7Q3JrL/nyRnL3MBlO3o3js9OllwXJo9vJ/uvz6eHeYXL/s6lW2JazdfLybfLbRfLqPFmdXk4fiJEl3Nqb2kuSN+tktf7XB7CEq/b+HpPVskuB9wmSKoKkiiCpIkiqCJIqgqSKIKkiSKo... | 1 |
math | kindergarten | one-more-and-one-less-with-pictures-up-to-10 | true | true | Count the snowflakes in this group. Which group has one more than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAA+jklEQVR4nO3deXRc93Xg+e/vLbVjK6zEQoAE90XcJJGUKFKyrMWW7NhOLDuddNuJMz3pLT1n0m73nDlz2t195vS0M//M6XQ6pycZy+7YseXEim3ZjmWLkkiJi8RVJEEKBEgsBEDsOwpV9d77zR+/QhWKpNyWTAkgdT/n8AgqFKpe1cPv1MV993ev0lprhBBCCCGEELeFtdQHIIQQQgghxN1EAmwhhBBCCCFuIwmwhRBCCCGEuI0kwBZCCCGEEOI2kgBbCCGEEEKI20g... | null | [
"iVBORw0KGgoAAAANSUhEUgAABIYAAAB+CAYAAABRYRpnAAB83UlEQVR4nOz9eXDc2XXnC37ub8kFmdgS+w4SIEiAZHGr4lJFsvZFqkUq2SrJlrslW54ev+m238S4bb2eiRft7o4XfpanI2bC3e6e57Yl+1myVJJVloraqlSlKpLFpaq4kwAJAiSIfd8TiczfcuePm8gEuEi0pCKS5P1EMAggt1/+7u9knnPuOd8jAIlGo9FoNBqNRqP5lfDTUYcjEy4AAgmI1T0gjUaj0WhWIJEIkLC31MJa7cPRaDQajUaj0WjuJY5OuMtSQTo... | 0 |
math | algebra-2 | domain-and-range-of-exponential-and-logarithmic-functions | false | true | What is the domain of this logarithmic function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABw6UlEQVR4nO3deXwU550n/k/fat0CCUkIJMActkDC3IfBxsFXfCXgZHCSsePE2cTZOPZk55f9ZfOaZGfn5fXmtZlkfvE6nsQzHh/ZzCRxfCQGCwIGAxYGgQwCCQyyAB2IltRSd6vPqq6u+v3RtIw4u6GeLnXr8/4jjlqqr75UdVd/+tFT9Zg0TdNARERERES6MBvdABERERFRNmHAJiIiIiLSEQM2EREREZGOGLCJaJSqqirs2bNn5OtTp06hrKwMnZ2dBnZFRESUORi... | [
"$\\{x \\mid x \\leq-4\\}$",
"all real numbers",
"$\\{x \\mid x>-4\\}$",
"$\\{x \\mid x<-4\\}$"
] | null | 2 |
math | grade-2 | identify-lines-of-symmetry | false | true | Is the dotted line a line of symmetry? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAAAgQ0lEQVR4nO2deZQc1XX/v7equns2zUzPaBmhxRKLEJsEGIMEAksICYwBG9uKneDYxMZx4vx+NiAcOw45PwX74BhsnBzkgCCxcuxslmwIBhsDklAMzEggCc2Mxmgf7evsa3dX1bu/P3pGmqW7uru6uquq+33O4Rymq957V139rbfeewmSrGDmxc3Nzdc//PDDXwOACRMmdL/wwgs/AbCZiPa6bJ4kSxS3DZBIvIwUiERigRSIRGKBFIhEYoEUiERigRSIRGKB5rYBhUB... | [
"yes",
"no"
] | null | 1 |
math | grade-5 | identify-rhombuses | false | true | Is this quadrilateral a rhombus? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEPCAYAAAB4ALMPAAAfXklEQVR4nO3da3Td1Xkn4Feybr5hGWM7wrKNjS/ENoRgiBNMgOAmtNPSJIVpmkwMGcrMUEJL62lpO4WEkMDQMiRp18yQNVmdNbMmdM0KENomaaCeAEmIIQRwE262MQaMjTAYJMsXfJGO5oOx9tGxZR1J56ZznueL/5KPpO3z6aef3713XV9fX18AAAAFUV/uBQAAQDURsAEAoIAEbAAAKCABGwAACkjABgCAAhKwAQCggARsAAAooIoJ2F/5h3fiim/sic495V4JAAC... | [
"yes",
"no"
] | null | 0 |
technology | grade | peripherals | false | true | What kind of computer peripheral do you see here? | "iVBORw0KGgoAAAANSUhEUgAAANQAAAEsCAYAAAC7aJ3YAAD5xklEQVR4nOz9WawsWZYdiK1zzMxn9zvPw5tfDC/GzKzMKiazqjKJKnTxQx8EBHV/kOiWRLEB8rNBARKEVlMAGyw0CUoq6VcC0RD6p8EPodEcioUisjKzMiMy5njzfOfZ7/XZbTj6MF/bj9s1d783XkRWZalOwOP5dTc3O3Zs77P3XntSvu8brQGDEFAKYRjCcfPo+gEynovQb+LstA7f97G1s4tMLodWq4NcvohcLgfdasLxXERaIYhChGEIRAYqjBAFIcJsDlEUIYo... | [
"Modem",
"Mouse pad",
"e-reader",
"USB ethernet hub"
] | null | 2 |
math | grade-3 | read-a-thermometer | false | true | What is the temperature? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAXJ0lEQVR4nO3dTYgcd5on4DfVOsm+pC+eaTdjyBqBTmOJSDdjH3zKFFjoNKIS1KtzlEXvYQVeqtZeg8Gr3kymQQdjZCVz1LZAhZs9GBlUcfLFzbgCy7MXgdoJHtqz41PAYmth6e7cg5ShzPqQSlmhyqjmeUCQFZ8/3X4Eb/yjMR6PxwEAAFTiaFUXunv3bty6dSs+//zzuHPnTvzhD38o9/3sZz+LkydPxhtvvBFnzpyJEydOVHVbAAColUYVT7A//vjjGA6H8dVXXz3... | [
"15°C",
"40°C",
"30°C",
"25°C"
] | null | 1 |
math | grade-2 | find-the-next-shape-in-a-repeating-pattern | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADhCAYAAAC9ZMGZAAAaGElEQVR4nO3dTZAcZ33H8V/3dPfMvmmlRVrJkhwjlARDIOaQmBCcSgFOIKmQClyAopJDiqLgEg7mkioIBbhIJRzIhZDXAze4JClSSRwsoKhgyy85YBODCljbhS0haaVdSbuzs9NvTw6jkXa12t156ddnvp8qV1Hr6X5e/Gf7t08/0+0YY4wAAAAAWMEtuwMAAAAAskPABwAAACxCwAcAAAAsQsAHAAAALELABwAAACxCwAcAAAAsQsAHAAAALELABwAAACxCwAcAAAA... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAADhCAYAAAAJS2C/AAAfIklEQVR4nO3dTYwc533n8V9VV1X3vJNjcjgiKdM0dxPZa4U+ZOVVrEXgWIq9i3jh6OIYgvawCAT5sj7QlwXsCJaFBLGwsC+yst7sQTf74hhZ7EZr0TKMlURJDhBLXtmE45EIixwNOdQMyZmenq63Zw/NJmc4r91d7/39AAasma6q53n013T/qv9VZRljjAAAAABUgmVZeQ+hkOy8BwAAAAAAaSP4AAAAAKg8gg8AAACAyiP4AAAAAKg8gg8AAACAyiP4AAAAAKg... | 0 |
math | kindergarten | identify-pictures-with-symmetry | true | false |
Which picture has symmetry? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAswElEQVR4nO2deXRcWX3nP7W8klQlqUpSyVZZlly2Fm/tttrujXTTOBk4IaFJfAIJkJDQZDgzkGSCM1mAgQTncJIheycZskwCmExCJgGSDs3Socm06QVMr3Lb7rYtyy7L2qy1tFRJqlfL/HHrqhbV8kpS6ZWk+znHR0u99+qq/L7vd+/v97u/nyWRSCRGI3AtDHMxiCZQKBRlwm6BOht0OWGnAyyjS4nE87NmD0uh2H7cVw/2vrD4weeA/S6hToVCUR7mYnAlBCM... | 1 |
math | grade-1 | subtraction-sentences-using-number-lines-up-to-20 | false | true | Which subtraction sentence does this model show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAW5ElEQVR4nO3de1BU590H8O9ykyJXFVRSwgqtGAyCSgS0KV5Gc49aI9VMJmJrTEz72mjGMSZ2ogmtpuaiEzqZ2MzU2hTHW8GY1tH3NQKO3BG0ymgadUGyYFwQ5Cqs7PvH8Sw3EXY57HPO8v3MMLt7lll/P931fPc5z3mOzmKxWEBEwlQ0Asv+D8j9AShcDMQGiq7IPuxDXdgHEZE4LqILIBrOjhiAmENSiNAy9qEu7IOISCwGbCJBbrcBS/4XWD8F2BEvuhr7sQ91YR9... | [
"10–5=5",
"10–6=4",
"8–5=3",
"8–7=1"
] | null | 2 |
math | kindergarten | count-to-fill-a-ten-frame | false | true | There are 8 shapes on the frame. A full frame has 10 shapes. How many more shapes do you need to make 10? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACQCAYAAAAyRxwtAAAJMElEQVR4nO3dv2td5x3H8efmqLKHTl40FEHr2ZtqtBUbbisaWuKtYA8G/xGFaDAig6Alf4Mhgw0dAg4JBSUXV3iqUL0Ue3UComB78GzJPrld8oBkW7J+fJ9zzs3zem0Syrn3wxmeNzfX944ePHs9TQCkqwtzfT8FAH4GPur7CQAAwM+JwAYAgEACGwAAAr3zhsOlC00fz6M3j162B3623/6a2N9++I8A4IS8gg0AAIEENgAABBLYAAAQSGADAEAggQ0AAIEENgAABCr... | [
"2",
"8",
"4",
"1"
] | null | 0 |
math | grade-2 | compare-clocks | false | true | The clocks show two things Nora did Saturday after lunch: Which did Nora do earlier? | "iVBORw0KGgoAAAANSUhEUgAAAdsAAACiCAYAAAAJIGeJAAAzqklEQVR4nO3deXRU9f3/8ee9M5PJSgKESVBCgAQFgoRNK6AorbJYsAIu/SmLtFWpSNUWxFbqXhfA5VtRoHoUCbRaRaylhYCIrCoIJCwFJGGLSDIESMg6272/P2IGhmwzySxJeD/O4ZC5M/fez0zyuu87n/u59yq6rusInznP7cBZsg9X+SFcZYfQKvNC3aQWzRDVA2P0lRiirsAQ3QdDZLdQN0m0QJJL/5Jc+o8ixdY3uvMs5bkv4Ti7ucZzmqZjd2goqCFoWUukYzI... | [
"fed the fish",
"talked on the phone"
] | null | 0 |
math | grade-8 | apply-addition-subtraction-multiplication-and-division-rules | false | true | The number line shows an unknown number, y. Is – 3y positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGSUlEQVR4nO3dTWhU9x7G8efMy8k0LzWxxBKoudJbWgiiqHFMxBYXXdyLuBixCxc3CJfKVaSFboRC6aqCuy60VHCVYipYRoqtUNrNJJvMxETinRqoF5LGRVq93pvWxMz76WJekujUvDiZ/5zk+1mEOWdm8cA5i4d/fud/LMdxHAEu1tfXJ8uydOzYMdNRUCVccwBALfOZDgA8r3v37pmOgCrjmgMAatmyC3Y6ndbw8LCi0ai2bNnCyhEAAKi47FSvslNfKDczKknyNO6... | [
"negative",
"positive"
] | null | 0 |
math | grade-2 | greatest-and-least-word-problems-up-to-1000 | false | true | Some candy companies compared how many pieces of candy they have produced. Which company has produced the most candy? | "iVBORw0KGgoAAAANSUhEUgAAAdwAAAC9CAYAAAAZfMy+AABcuUlEQVR4nO3dd1gURx/A8e/Rq6AiCCpgsBsVu9jFEsUCtmisoDFqTERjifoaxcRuEmtiSUzQGLHF3mPB3lCxxK4BoohYQKQJ3M37x8nKSUfENp/nuce72dnZ2XXZ383szJ5qY6+WAkmSJEmSXhnPP3ZjANCy35DXXRdJkiRJeif9/dtPAOi95npIkiRJ0ntBBlxJkiRJKgAy4EqSJElSAZABV3olooUBlWLq4vakJtHC4HVXR5Ik6bWTAVfKtS3JNkxNdMoykB5KsSZ... | [
"Goodman Candies",
"Tasty Treats",
"Sweet Things",
"Candy by Katie"
] | null | 2 |
math | grade-2 | which-tally-chart-is-correct | true | true | Katie had a sleepover. She got breakfast for her friends. Which tally chart shows the right number of each breakfast food? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADhCAYAAADyOcJJAABGUUlEQVR4nO3dd3Rd533m++9up+IAB4VopNgssVmymi25xJaL4thOnCiTOklmNE4y5d7pd2YyuSvrrkxW1pTkTkmmOivrzp1kJrmJneLEduzYcSzZjmxZktWiQlIyQVIEiEYc4PTd3vvHPugACZIHlc9nrbM2sPc5u4CQ/fDl7/29ljHGICIiIiIibWFv9w2IiIiIiOwlCtgiIiIiIm2kgC0iIiIi0kYK2CIiIiIibaSALSIiIiLSRgrYIiIiIiJtpIAtIiIiItJGCtg... | null | [
"iVBORw0KGgoAAAANSUhEUgAABKAAAADrCAYAAABeie4AAACenElEQVR4nOzdd3xddf348dc55+7kZjerKyltOmhpobRlKGUJyBYEBWQKij8XogIqfBEVUEAUZDuQIShThkUBgVZWgdJC6V5JR/a4ucndZ/z+OMlNbjOappnN+/l4nMfJPeNzPuferPu+78/7owAWQgghhBBCiAFhWRbVcdgchhYDdPlvWwghxBjkUMCvwTQfFLhAQQJQQgghhBBCDJjqmMUHweHuhRBCCDFyLMoAx3B3QgghhBBCiP3JprC9LnLB9DT7018hhBB... | 1 |
math | grade-3 | correct-amount-of-change | false | true | You pay $3.00 to buy a baseball costing $2.18. You receive the following change: Is this the correct amount of change? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACgCAYAAAA2PRuAAACwh0lEQVR4nOz9d5hcd3n//z9PmTOz02e296ZV2VXvxZZ7kSum2NgQTGhJSAe+IQkJkEBCfp+EQEhCCxDTTHED9yYXWbZk9a7Vrna1ve/0euaU3x+zO5aMAdsIDPH7cV2+rJVWO3OO5o/X3HO/71uybdtGEARBEARBEITzQn6jn4AgCIIgCIIg/F8iArYgCIIgCIIgnEciYAuCIAiCIAjCeSQCtiAIgiAIgiCcR+ob/QSEn2VbJtlMhnQyQSqZIB6LkYnNks7lkQB/KIw... | [
"yes",
"no"
] | null | 1 |
math | grade-3 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines perpendicular? | "iVBORw0KGgoAAAANSUhEUgAAAHgAAABZCAYAAAD1lOBBAAAHGElEQVR4nO2da0xb5x2Hn4OBhECg5KayhKy5rCRlZQlNSUcCdtI2zZKGnF6mlDXz1labtqia1Elbp92kVsqkbpM6aVKjfYjSeUS02tIZ6HVLCYaatjQXRMgKyVoyR4OoIU0xFwdjc/aBgsJ6bCA5d97n4znHev/WT8/Li/33+0qKoigIHEuK2QUI9EUE7HBEwA4n1ewCZguL73p8ymcKV+fTUPWMpuMKgw0geKJjymfWrFhKzYGnNR9bEqtoY4iOxKirP47PH6D5VCc... | [
"yes",
"no"
] | null | 1 |
math | grade-4 | interpret-bar-graphs | true | true | An architect recorded the number of different types of buildings and the materials from which they were made. Which bar graph shows the same data? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC9CAYAAACJdQrFAAA02ElEQVR4nO3deVwV9f7H8RebCLIo5pKogKmkoliapoSWilsoaq7XFkXDUvNXtipZWelNqlt2cUvTq2Vet1yBRNssRbGy7Oa+gImyGCEKKNv5/TFx9IgW6AFU3s/Hg4fMd74z85np9Hi8Z/jO99j8MRITImI11RfqfykREZHKzLaiCxARERERuZUoYIuIiIiIWJECtoiIiIiIFSlgi4iIiIhYkQK2iIiIiIgVKWCLiIiIiFiRAraIiIiIiBUpYIuIiIiIWJECtoiIiIi... | null | [
"iVBORw0KGgoAAAANSUhEUgAABSAAAAFsCAYAAADcwBcVAACG/UlEQVR4nOzdeVhUZf/H8fcwbLKLoCiKOyqiuJTmrpm5Z1imPm22q1m215PVL1ss7WlXy8wsy0wtME0stUVNTVvMlVxB3BAVFVkHZub3x8ToiAsoMAN+XtfFhec+9znne+450cx37sUAWBERERERkVJhtVpJNcGubDhlhgK92xYREZErjLsB/I3Q2AdqeIIBJSBFREREREpNap6V9RnOjkJERETENbQPAHdnByEiIiIiUpnszLb9rukJTXxt3/6LiIiIXElOmWF... | 1 |
math | kindergarten | rectangles | true | false | Which shape is a rectangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAIxElEQVR4nO3dz29U5RoH8O8Mw2Ri20tbGkirUdpaWwo2ehNiEFzA1YQfi5pQf8vmJrCxLooa9C9QosIC3EByN/jbktgFPxINLARJZKGpUNpb2qLRFkxpK9OScZzOuJhwo1eRnnPe932ed+b7WUGaOefJ9NuZc97zPOfECoVC4UoWuHQDSM8DuQKIIkvEgKpFQMsdwPIkELvyS6Hw1XXpsqiUPfQPIDF8o/if+iTQWlFMIVFU6XlgaA6YyAL/vQHEr+eKP2DIyKS... | 1 |
math | grade-5 | mean-find-the-missing-number | false | true | Carmen has the following data: If the mean is 27, which number could z be? | "iVBORw0KGgoAAAANSUhEUgAAAVkAAAAkCAYAAAAjOUlwAAAH4ElEQVR4nO3de0xb5xnH8a9v2GBjIAHCPQkEnAAJpYHmtqSs1TZpU7cqS9utVTdp1W7apmmVpimbJlVTpyxqd+m2rtOmqf+1aZdKmTRl0zqt6ZIuQBKTkAYCJIQQwIC52UDABvvsDyceTkhij/OClT6ff5DPOfb55Xnxk+Nz3mMMmqZpAMyDNguEgcgSIYQQiTAARjDYAPONRZqmadosEFjBYEIIcb+xRpqtkXmkwQohhN4CwDwYNWmwQgihhBYAI6GVjiGEEPepEBj... | [
"27",
"36"
] | null | 0 |
math | grade-6 | mean-median-mode-and-range-find-the-missing-number | false | true | Nina has the following data: If the median is 18, which number could g be? | "iVBORw0KGgoAAAANSUhEUgAAAMIAAAAkCAYAAADb/OWuAAAHxElEQVR4nO2dWXBT1xnHf1os2bLk3ca2BAZvyAZsMJBAoCRhsQOBAkkmpU1o6JLhodN2OtNO+9LJW5/6kmbaMp0E0iQ0BDJtEmKDKTQGk5jNYGMwtrxgsLyAJXmLZEuWdPsgo45YCiZXEg7n96bvnHvPf0b3r/ud75yrq5AkSQLwemF8HPx+QEIg+PaiAKUSYmNBrZ4MSZIkucfB7Y6uNoEgGmi1oI0FtdcrTCB4fHG7QaUGpUeYQPCY43GD0ueLtgyBILr4fKCUxMR... | [
"20",
"17"
] | null | 1 |
math | grade-5 | identify-parallelograms | false | true | Is this quadrilateral a parallelogram? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEICAYAAABlBYO3AAAilklEQVR4nO3de3xcZ33n8e/zzNF4LNmSfJMt24kjmwQISQik3aRc8kpgSdpSCJQ7y31py3aXvrZ9bbdAKQkF2qW0C6/uLoUWwq3sQgh3aLkUkhIIl4amCblAwLfEsmz5Ius+mjnnefYPyWdGiiTL1sw8M3M+73/ye8ZnzvkSPPjr4eg8xnvvBQAAAKAmbOgAAAAAQDuhYAMAAAA1RMEGAAAAaoiCDQAAANQQBRsAAACoIQo2AAAAUEMUbAAAAKCGKNjAGZTuvl7lu54... | [
"yes",
"no"
] | null | 1 |
math | kindergarten | addition-sentences-up-to-10-which-model-matches | true | false | Which shows 4+2=6? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUQAAABKCAYAAADDly0CAAAMoklEQVR4nO2dS4wcx32Hv6p+zHt2yaWkJWlRgqiVTNFOpAQRJcu6GXKcxAEMw4phGEIOvhmBIRjOIUfnEMA5BEZyMHJLDonjwAhiOcolJzuCFCEBDMiKwEdomI/l8rHU7s6ze7qrcpgZcocc7k7PTs+j+f8AYme3u6v7I2p+XV3VXa2stXYjhAtNqMUQWQRBEB4KXAUVB9aK8JgPaiOw9v2dWR+WIAjCbDlTBfd8s/vLUR+eLXXTUhAE4WGgFsPZBlwL4VwT9E7... | 0 |
math | grade-3 | identify-rhombuses | false | true | Is this quadrilateral a rhombus? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEPCAYAAAB4ALMPAAAuh0lEQVR4nO3da3TU9b3v8c9cM5kJScgEMEEQIRJEIiAQQaRUy9LetFXbWgtFK0Vblgu2p2uXddZynbqKl7Oxx3162ac9XigoFJVttTe7y9nVXVrkFiEIRIIQIEBCbuRCMkkmczkPRmYyEiCBmfnP5f16NPPPXH6QPPjMd76/788UDAaDAgAAABATZqMXAAAAAKQTAjYAAAAQQwRsAAAAIIYI2AAAAEAMEbABAACAGCJgAwAAADFEwAYAAABiiICNS3rt1Ra98Wqr0cs... | [
"no",
"yes"
] | null | 1 |
math | grade-4 | fractions-of-a-whole-word-problems | true | false | Today, Jessica is working on her reading homework. She needs to read 8 pages. Jessica reads 2 pages in the library. Which model represents the fraction of the reading homework that Jessica reads in the library? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAVAAAABKCAYAAADt0gyQAAACBUlEQVR4nO3WMW7TcBjG4c9JmgFaWFARB0Bwgw6cgWP0VL0FnIGlJ6CFnagwJW2khlpmMJGQgCp+1SgEPc+SWLb1/6afv6brum62qvq8rFq0VXddAfAHk6bqaFz18lHV82lVM7vtuvP5rscC2C8nT6omn5b9xYtp1avHfV0B+N2irbq4qfqyqrpcVo3md/0N8QS439G4b2VV1XVbNWp/uQHA/dat/N5VjXY7CsD+ElCAkIAChAQUICSgACEBBQgJKEBoMviNs+M... | 2 |
math | algebra-2 | linear-functions-over-unit-intervals | false | true | How does f(x) change over the interval from x=
–
9 to x=
–
8? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB0tUlEQVR4nO3de3xU9Z0//tfcZzKTG0lIQiBBQLFgLqCoIFRcrLqltgXrF1t7Ea+49QJid91u2912LetuRbxfUcC2e9FfvaxoZFGiUFCRSCYkIEKAkBBymWSSuZ8zM+f8/kgnTSBAAueTk0lez8fDh48MOa9555zMmdecnDljUFVVBRERERERacKo9wBERERERCMJCzYRERERkYZYsImIiIiINMSCTUR9bNmyBRMnTsTChQsBANdffz3efPPNfr83Go3i8ssvx6effjq... | [
"f(x) decreases by 1",
"f(x) decreases by 2",
"f(x) increases by 200%",
"f(x) increases by 1"
] | null | 0 |
math | grade-3 | am-or-pm | false | true | Nancy is looking for shells on the beach. Her watch shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABaCAYAAACCNCH/AAAIY0lEQVR4nO3dz28cZxkH8CfBKAmgzCARNVWLIgFCUKTZXiAI1c4liTlQxIVy8eYAsaHSBoTi9R+R5IAa92JbQsr6QnoAnNMmEr8qUZID7a5AooCKFsqPqgU8AbWBtJhD4shxYmdnM7sbu5+PlIO98/p5Zk/fvHpm3h0rKysrAQAAlGLnsBsAAIDtRMAGAIASCdgAAFAiARsAAEokYAMAQIkEbAAAKJGADQAAJRrp+so/vRjx8o8j3rnex3bY0t67J+KThyMefmzYnQA... | [
"11:20 P.M.",
"11:20 A.M."
] | null | 1 |
math | kindergarten | count-corners | true | false | Which shape has 4 corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAH5klEQVR4nO2d3WscVRjGn81uV9ykLU1Tk9b2oraaFtoLBS2KFPU/ULzRKxFEBAX/BxUEQQqiIop4o14I9aa0KEZL0RUioRdtITVGS8E0ba1tProh62bHi5PBsR/p7sye933PzPODUpYkOyfn/HbmPOedOSlFURTNNoHfGsDCCtCKQEhmKiVgfRm4vwYMV4HS7HIUjc9rN4vkmQMbgMpUw73YWgVG+52FhGRlYQU4ex240AR+bQB98y33BUpGesn6snMKABZXgL6... | 2 |
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