subject stringclasses 4
values | grade stringclasses 15
values | skill stringclasses 445
values | pic_choice bool 2
classes | pic_prob bool 2
classes | problem stringlengths 0 1.12k | problem_pic unknown | choices listlengths 2 4 ⌀ | choices_pic listlengths 2 4 ⌀ | answer_idx int64 0 3 |
|---|---|---|---|---|---|---|---|---|---|
math | grade-1 | ordinal-numbers | false | true | The first picture is a sun. Which picture is ninth? first | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAqBUlEQVR4nO3de1yUVf4H8M9hBhkYBERDxfKOZquBpZYVqGkXd9e0MjX7lZab9lsT87Jb6paSmtWqlZqpect+baVlGa2maUpaawsGXsoSNS8JSokgAzMwDOf3x5krzOWZmWdgZp7v+/XaDWeeeZ7D4XzPOfM858I45xyEEEIIIYQQWUQ0dQIIIYQQQggJJ9TBJoQQQgghREYB62CXGTk67byK3l9VoMxIo1AIIYQQQogy+NTB/rTYiKyfDG47zvt+r8WZqjoUlJvw+KE... | [
"tractor",
"sun",
"barn"
] | null | 2 |
math | algebra-2 | match-exponential-functions-and-graphs | true | false | Which graph matches this equation?
\[ y=3^{x}+1 \] | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAVUAAAE1CAYAAABX+HN0AAAdfElEQVR4nO3dfXBU9b3H8c9uEgIhMbHmAbUSESuRiATSktByibFDebDcEayilFpAbbHg9A/8A+5cJ3rbKnaUP7zUh/qA9jpQRRlLoAhaYLTXBEvMQsEGEBK9akIisAESskk25/4Rd5NNguTh7J5zdt+vGcfds+ec35c9u5+cp99vXYZhGHWt0ifN0lm/1G4IANBP8S4pJU76TpKUNUxy1fkM48MzVpcFAM5XcIkUf7S588nlw6RxIzsTFwDQP2f90uEmqbZVOtI... | 0 |
math | kindergarten | triangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJIAAACTCAYAAABlJ0ArAAAMwklEQVR4nO3da3QU5RkH8P/sbnazm2yWXIHcJCGEa7gIgaJQwXpEEBUFW/QUqwLV1luF9tRbWz0VSnsoiKdaPYLUWhEryBGwKtViEQ0hEZBLblwSciOQ7IbsJrvZzW6mH0J6UC4yM+/MO7N5fl9yODnv+zwwf96ZndsKoiiKTSHgmB/wRYCwCEK+k0UAnGZgiAPobwWEpqAo7vXybosY2aQEwHLU3/OHgVZgaFxPygj5Lr4IUNkBnAoBVX7A5A33/IJCRKRwmns... | 1 |
math | kindergarten | tall-and-short | true | false |
Which space shuttle is taller? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAGgAAAEICAYAAACzn7FPAAAUL0lEQVR4nO2dfVhU1b7Hv7wjMwyIivIOB9RhfOHFFCztcDyChplvlCJZat26dbvdblePZS8+aNY5nW6RdSqPivRY2jnPgL3cTo/Q6VCW7VFTy9qDii/IhsEX3vYMkCBw/5hmZAJmgNnDXlO/z/P4xN577bUW+7PXXuu31t7k0d3d3V3XDlS2AsZO4Ho3CBnx9gACvYDxAcBYX8Cj7lp392FR7moRfZGmArzPtJo3wnyBiQqzPUI+jJ3AqRbA0A6cbgU8xevmAyS... | 0 |
math | grade-5 | angles-of-90-180-270-and-360-degrees | false | true | What fraction of a turn is this angle? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABQCAYAAAAjrwKZAAAIhklEQVR4nO3de2xVhQHH8e8BrEil3sEKLksLtTMiltLIrA6VxyISEapzf0iW7I/pHxoy0LFkC05jfAWzZHMoZLhEljlNwBgzqRIfG4yXQXysL1Cn2F7qA9oNW7EEO8vZH9KG0ntv723uvXLa7+cvuOfe5vfnNyfnEYRhGCJJkiQpK0Yl+nDX/t353iFJkiQNCwkD+4d3X0e8LZ7vLZIkSVLkDQjsTbue5UR4goX31XwTeyRJkqRIGxDY6178IwAffHKAP9Q+lvdBkiR... | [
"3/4",
"1 full turn",
"1/2",
"1/4"
] | null | 1 |
math | grade-8 | identify-similar-triangles | false | true | Are these shapes similar? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACGCAYAAADnyP2rAAAyzUlEQVR4nO3deVyU5frH8Q87DMiigCwiILjBuItbHRfSXCAXSo/taStmZj/NMj12TFsoj0vZqeyU1snTYmkZZSaWpqUIEruiGCogw6ZsI4sw/P54cHRCcxsZluv9evFCnmfmmfv5w+HLPdd93Wb19fX1CCGEEEIIIYzC3NQDEEIIIYQQojWRgC2EEEIIIYQRScAWQgghhBDCiCRgCyGEEG1cfn4+M2bMwMfHBzc3N4KCgtiwYYOphyVEi2Vp6gEIIYQQwrTuueceBg4... | [
"yes",
"no"
] | null | 1 |
science | grade-3 | natural-resources | true | false | Which of these pictures shows a natural resource? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAV4AAAElCAYAAACszooYAAEAAElEQVR4nOz9V5Nka5qdiT1bC9faQ+uMSC2OViW7uhtNYBoYDA1jNmYw8j/QeMsb/gBe8QY2HBoBkhgY2D2NJlDdXfLUqaNP6szI0MojXGu19d688Kwc0KaHaGtw7uq7ibAdHh7hZnuv7/3Wu9Z6hW8HUbQdg4TE79fv1+/X79fv1/8f1yiA/QnUXMjI8HF6dl38Pej+fv1+/X79fv0vsxISbMdm34+D//G6+HvQ/f36/fr9+v36X279DmO96H+8Jv9tL/z5/+3... | 3 |
math | grade-4 | angles-as-fractions-of-a-circle | false | true | What fraction of the circle does this angle cut out? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADJCAYAAAAZxkUSAAAit0lEQVR4nO3deXSU5d3G8WuykB2SkEACCEGQhKVAJUQRkMUFYlC0EkClBRQVkBaqgIIKbm8FRNSKBRErtZbSIG5NcJdVQSAVCsTIIlvIIiEEs0Ng3j/iTIkssszMPTP5fs7xkDxJ5r6U8Zwrv7nnfixWq9UqAAAAAA7hYzoAAAAA4E0o2A6QlZWlrKws0zEAAADgBixsEbl0w4cPl8Vi0aJFi0xHAQAAgGFMsC9RRkaGysrKVFpaqoyMDNNxAAAAYBgF+xKlpaXZP16... | [
"1/4",
"3/4",
"1 whole",
"1/2"
] | null | 0 |
science | grade-2 | identify-properties-of-an-object | false | true | Which property matches this object? Select the better answer. | "iVBORw0KGgoAAAANSUhEUgAAAKwAAADcCAYAAADtE0oZAAA1KElEQVR4nO29eWwk133v+zmnqnpfuHM4C2fRSBqNLcnyyFeKYzuWFzh4c+3oOXaQlzwFBoI8+A8DRowAQYAgCBwYgf1PgMBB/vQ/Ca5vHFw710mc5zi6sXHlp9WyrV0jzaKZITkkh0uT7LXq/N4fp6oXkjNDDslm96i+AKd7ums5XfWt3/ntR4mIAFSrVaanpymVSvi+T4wY+w3XdSkUCkxMTJBKpQBQIiKVSoW3336bo0ePkkql8Dxvn4caIwY0Gg2q1SoXL17k7rv... | [
"salty",
"sticky"
] | null | 1 |
math | grade-8 | compare-linear-functions-graphs-and-equations | false | true | Function A and Function B are linear functions. Which statement is true? | "iVBORw0KGgoAAAANSUhEUgAAAjcAAAGlCAYAAAAGbtd7AABQqklEQVR4nO3df3xT9b0/8FeSJk2atBQKLYWW0sIt/ihS5EeL8kNQBOa4dyo/xM2hmzJ3ZSITt+m+w+vunW5OpvOKetXNzR8TrWwoXoV7V2CiUHr9ARalVUmLLaUplKZtevI7n+8fXTICpUl7TnqS9PV8PHzUpifv805459N3znnnVCOEECAiIiJKElq1EyAiIiJSEpsbIiIiSipsboiIiCipsLmhQfXEE09Ao9Gc979vfOMbaqcYZvz48dBoNNi2bdug73v+/Pmh5+X... | [
"The y-value of Function A when x=\n–\n1 is less than the y-value of Function B when x=\n–\n1.",
"The y-value of Function A when x=\n–\n1 is greater than the y-value of Function B when x=\n–\n1."
] | null | 0 |
math | grade-8 | changes-in-mean-median-mode-and-range | false | true | Look at this set of 8 numbers: How would the median change if the number 38 were added to the set? | "iVBORw0KGgoAAAANSUhEUgAAAT0AAAAkCAYAAAD7Ne16AAAIqklEQVR4nO3ca2xbZx3H8a9vsR07ttNcmnuTurk3bbM2XUnVLlDQ0KSNUq3d2MT9BUUIcZF4AQhpGhswbYAQGkNjg3dTBoNtMK0dHVtLWxpnNE2TNWnuiePcb83Vl9g+vHDjJk27eM1xfKifz7uc2jm/Pv/n/HPOeXyskiRJAsAPkgcIAqEtgiAI/99UgBpUBkB7fZMkSZLkAbwxDCYIghBt+lDzU+NHNDxBEO5+XsAPakk0PEEQ4oTkBTWBWMcQBEHYIAFQi0ULQRD... | [
"increase",
"decrease",
"no change"
] | null | 2 |
math | grade-2 | greatest-and-least-word-problems-up-to-100 | false | true | A pizza chef recalled how many pizzas he had made during the past 4 days. On which day did the chef make the fewest pizzas? | "iVBORw0KGgoAAAANSUhEUgAAAWEAAAC9CAYAAABidMw3AABBLElEQVR4nO3deVwU5R/A8c8usJwKInim4IFiVohXlqmYmWhoWlqm4lFmlLeZWprmTWrmQaZmivjTFDsELYU88MojD8QjLxTwAhQFkXPZnd8fKwMr97mgz/v1mteLnXlm5jvM7neffeaZeRQ7PbwlBEEQBIMwBnjd6x1DxyEIgvDM2bvyd5SGDkIQBOFZJpKwIAiCAYkkLAiCYEAiCVdi8ZKCpurqtFVXI15SGDocQRCKQSThCipQq2KOxiLf5HpAMiFCUnJGMubjjCr... | [
"Tuesday",
"Friday",
"Wednesday",
"Thursday"
] | null | 1 |
math | grade-5 | is-it-a-polygon | false | true | Is this a polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC2CAYAAADjsvoGAAAS0klEQVR4nO3dTUxb95rH8d95MbiSSYwEUrgSEColV0ECNKnUxYxCNu3dhW5uZpWwmWTXZJN216ySXdtN0l3SDbm7203obhqNBJW6uJrJlYmUSEUaIEiXjkDyycVSHXxeZnFs8xIgtjn2Oba/H6lCGLAfpYn088Pzf/5GEASBAAAAAETCjLsAAAAAoJMQsAEAAIAIEbABAACACBGwAQAAgAgRsAEAAIAIEbABAACACBGwAQAAgAgRsAEAAIAI2XEXgEO4jvzCUvhxe0m... | [
"yes",
"no"
] | null | 1 |
math | algebra-2 | outliers-in-scatter-plots | true | false | The two scatter plots below show the same data set. Choose the scatter plot in which the outlier is highlighted. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUYAAAFGCAYAAAAW1zbwAAAoS0lEQVR4nO3dfVBU18E/8O8uyK7KLmGrOGqQnbhoMBKNyBLU7S+mdZsnzfO06cQE27w0kKaWFEPbyVt/dqA+rZ2N1mmMWuMk4ZdpS6NJm5en41ObabS0iLCGaAU0AepGoqlLXN42siwr9/fHDVf2sqjA2Tf4fmYcuWcve86qfD333vOikSRJ+rcfaLkI9FwCAhKIiCaVRA1gSAAypwGzkgDNv/skqa472s0iIooNeUYgsfmifDA7CVg4XU5NIqLJpOcS8MFnwCd... | 1 |
math | grade-8 | describe-a-sequence-of-transformations | false | true | What combination of transformations is shown below? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEyCAYAAADA5Kd8AAAkvElEQVR4nO3deXhU9dn/8U/2kIQEwuYMQiAgKggkRGSVRSy9tFIVt+dxqfwqiBsF0ar1cUGxWlEExbWgdcNLbQVUwJa6gQGDEAhEENmEJMyAYQvZJtvM748hg7ZCMsk3czKT9+u6uITknHPfMeGazxzu8/2GeTwejwAAAAAYEW51AwAAAEAoibS6ATSN+R/l68H5O6xuI2ASO8br9t/31qjUWPW3RVndDgAAaMHCakdEnE6nHA6H1f3AkN/NLtahYrfVbQRUv8v7SpJ... | [
"translation, then rotation",
"reflection, then translation",
"reflection, then rotation",
"translation, then reflection"
] | null | 2 |
math | grade-5 | identify-parallelograms | false | true | Is this quadrilateral a parallelogram? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACJCAYAAAAWnk9+AAAWsklEQVR4nO3deXCc9X3H8c/vefbSLa0lH9jY2Nj45DA+8W1jjAl1gAmZBpoMzdEMSZN20mGmzTBNp8ykbVqapOdkOm0a2hnyDyRAIBgCtsEHBnxgYwPGBmNsg23JknVY2l3t8/z6hyRLq8pYK6201/v1n9eW5hmvNPPRT5/v92estVYAAAAAMsLJ9gMAAAAAhYSADQAAAGQQARsAAADIIAI2AAAAkEEEbAAAACCDCNgAAABABhGwAQAAgAwKZPsBMHgftkt/cLBTQdf... | [
"no",
"yes"
] | null | 0 |
math | grade-6 | which-figure-is-being-described | true | false | Jada made a 3-dimensional figure out of wood. The figure had a round base. Which figure could Jada have made? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOwAAABSCAYAAABXEzgRAAASPUlEQVR4nO2de1RTV77HP0GCgJgAonREwQeItrU8fIy2vrCMYgUV6tgrU24VmepYl4OusYuuLkdcvW2to1aq1XFZpty2o62ooGiLVYfQ6rWtY0lr66vYxlerQiEgJLzP/SPmSAR5BpOM+7NWVnL22XufX3bON+e3f3vvcxSSJEnXa6DQALfqoU5CIBDYAc4K6NkNgtzB18WUprheLUlfldvWMIFA0DK/VUEfF3D+wWBK+I0LBPcwKVogENieW/VwvhJ+qYELBpN... | 3 |
math | pre-k | represent-numbers-with-shapes-up-to-5 | true | false | Which group has 3 stars? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAMpklEQVR4nO3dz2ob9x6G8dfJuCS1LQW5HHFQqQ1KjnGNJVCgs4gMvYB6X4ivwBfQhS+gEF9Bs3dI17WDtXdB0EUXLqT0NF0o1JwqjUMkK5FSKegshBzHGcn6M/7OjP18NqlxJc3GD3pBP81Eu91u//WP9OS1dPRWarUFAL5wJqSZq9Ktj6XkR9LEX2/a7Z+qQV8WgIvOjUnO7687P/z7I2lhqlMjAPDD0Vvpt1fS//6R/vtaulJtdX5BbAD4beZqpy2SVHsrXXl... | 0 |
math | grade-8 | identify-complementary-supplementary-vertical-adjacent-and-congruent-angles | false | true | Which angle is congruent to \angle{3}? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD/CAYAAADL5aGiAAAqEElEQVR4nO3df1RUd37/8RejkkmgZWCO6MpmHVuMm0Rk7NHFzZIAtue0xPSoPbqantMFutlihFTdjRr9xjgkqesPdiUnSrQne8CztjHRXbFn1Z49p3HccFyJ9jCgdiXxlKFZXJUCYyLpHFiG7x90pqCI/JiZO8w8H+d4EmHm3je7/7x45zWfG9fX19cnjIjH45HFYjF6DAAAAEQwk9EDTCQ2m00ej8foMQAAABDBCNgj5Ha7dfv2ba1atcroUQAAABDBCNgj5Ha7JUm... | [
"\\angle{6}",
"\\angle{5}",
"\\angle{2}",
"\\angle{4}"
] | null | 0 |
math | grade-2 | names-and-values-of-all-coins | false | true | Which coin is this? | "iVBORw0KGgoAAAANSUhEUgAAANUAAADVCAYAAADAQLWDAAC5AklEQVR4nOz9fWzU55U3jH9szMzgsWdsD2MwBscvY7QNhuSWDazv8LOSEBM2WTVxtJFMVqsgFS1SH91BQneUzZM0VbPJna2yTyRS3ZGyYiWq1R2QuqqTqs0SHJI+PGG9gNEGsOkKxjY1mBcPY3vGL3j8+vvjms+Zc10zJmmbtuluj4RsPDPf+b5c5zpvn/M5eYuLi/ij/C5lanEx/hl+cmIC32wpsn7WzXXiiW//IwCgvbUBRzp7rE8u9bctT78sxwAgv++8PwVvzRM... | [
"penny",
"dime",
"half-dollar",
"dollar coin"
] | null | 3 |
math | pre-k | count-corners | true | false | Which shape has 4 corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAHV0lEQVR4nO2dz28UZRjHv9tdNoYFCbS4UulBqxQT9GYIMdGDd8968mLiwZP/gxgvxnjQ4Ml4woMH4kE0VSM20YQmhkhiU+kBDg0UxTbddluWXcbDy2D5Me2Wvvv8eOf7uTRlm87bZz4788x35lkqWZZl1zrAXBto9YBuBkJ2TK0C7K0Cz+0GmnWgcu1mlp1f1l4WSZnjjwO1S+3wzaE6MNEIFhKyU1o9YHYVuNoB/moDQ8vd8AIlIzHZWw1OAcBKDxjqbXiBkJj... | 1 |
math | grade-3 | choose-the-appropriate-measuring-tool | true | false | Which tool would help you add the right amount of garlic powder to a recipe? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAACnCAYAAADzJ6XqAAAiLUlEQVR4nO2deZwU1bn3v1W9zNbTPTP07AvDOggIgrgEEBOiIKIxonjjEnxViF4vmqv5iMtN7tWQqIlbFCTB7VXMIphXI26omBcEVDYTDLIMMA4Ms+89W29V5/5RPb3M9CBLd0831vfzgZ46tZxTVb96zqlT5zyPJIQQdW442A0dCngFOjonjFGCdAOMSoVcM0h1LiG2OQa7WDqnE+dZwXigW1vIN0NZmqY6HZ0TpUOB/V1Q64bybpAdXm2FLiqdUyHdoGkIoFM... | 2 |
science | grade-6 | identify-phases-of-the-moon | true | true | The model below shows the Moon at one position in its orbit around Earth. The white half of the Moon represents the part of the Moon that is lit up by the Sun. Select the phase of the Moon shown in the model. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAGSCAYAAACWpbVCAACud0lEQVR4nOzdd3wUdfoH8M/M9pRNJ4GEhEDohCIlgaBiOxVsJ+iJDdFTzooNy6lnL2dH5XeenfNO9A4FpYhgBSIJQXonAgmBJARSNtlsnZnfH7s7u5vsJptsmS3P+17e7szO7jwpbJ79zvN9vowgCAJIr7zxxhtSh0AIIYQQEpXuu+8+qUOIWHKpA4h0Tz/9tNQhkBiiVqthNBqlDqMThmEwfvx47NixAxaLRepwSBRgGAaRNP4UFxeH9vb2Xj9fLrf9ObZarYEKiZC... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA50AAAGSCAYAAABg5aW2AAEAAElEQVR4nOydd5xcdbn/P6fNmV62J9tSCSSElk5AqhcpIlK8IAIXC1iuIgo27L0DXv1dVJSrXkG9KCIEEFAREklICJBACBCS7Cab7dPbOXPK74/Z73dndjfJJlvO7O7zfr02O+fMKc9MdmfP5zzP83kE27ZtEEfF7bff7nQIBEEQBEEQ05Kbb77Z6RCmLIIgOB0CQZQhOx3AVOcrX/mK0yEQMwi32418Pu90GMMQBAHLli3DSy+9hEKh4HQ4xDRAEARMpXuiXq8... | 0 |
math | algebra-2 | solve-a-triangle | false | true | In solving this triangle, which law must you use first? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEICAYAAABlBYO3AAAlbUlEQVR4nO3dfXSU9Z338c81z0nIJCRhRsJDHhrl4BO2aAWhVWpBatmW2q3tjX3AI4oe7d6l5251261/dM+es27ZXa2ySAVl69Hu2rq0LmVplaqUSECogrpU5RAeQ2cCJJOQZCaZydx/5DkEJMnMXNdc836dwx/NDMnXU5FPfvlen5+RTCaTAgAAAJASDrMHAAAAAOyEgA0AAACk0JCAvWTJEl166aXnvOlHP/qRDMPQb3/72yEfP3XqlPLz8/XII4+kd0oAAAAgSww... | [
"Law of Sines",
"Law of Cosines"
] | null | 1 |
math | grade-8 | compare-linear-functions-graphs-and-equations | false | true | Function A and Function B are linear functions. Which statement is true? | "iVBORw0KGgoAAAANSUhEUgAAAjcAAAGlCAYAAAAGbtd7AABQIklEQVR4nO3de3yT9dk/8E+OTZpQWgothZbS4opokSKHFuUwcAioPI86DqJz6p6NHWRTJm7O/R6cbsN5YDjnaermPE0dcwPxmfg8q7KhWOoJDGqrkgZbShMamrbpnXPu3x+YjFBo0t53cifp5/16+apNv/neV8KVb6/c95VvVaIoiiAiIiLKEmqlAyAiIiKSE4sbIiIiyiosboiIiCirsLihlHrggQegUqlO+9+ll16qdIgxJk6cCJVKhW3btqX82AsXLow+Ly+99FL... | [
"The slope of Function A is less than the slope of Function B.",
"The slope of Function A is greater than the slope of Function B."
] | null | 1 |
science | grade-7 | identify-rocks-and-minerals | false | true | Limestone has the following properties:
made mostly of calcite
not made by living things
solid
no fixed crystal structure
forms from ocean sediment
found in nature Is limestone a mineral or a rock? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAACmnElEQVR4nOz9Z5Nk53Xni/62Te99ljdd3dUeIACCBjRD6UhnJB7FxLkT98WduR9hvtQdE3FCE3d0Z+YczRGdCBKu0d5Ul/eVWZXeu23uiyf30w0QBGYEUqI0tRhFAGWysjL32s9a62+W4rquy2VcxmV8Yaj/0E/gMi7jDzkuE+QyLuNL4jJBLuMyviQuE+QyLuNL4jJBLuMyviQuE+QyLuNL4jJBLuMyviQuE+QyLuNL4jJBLuMyviQuE+QyLuNL4jJBLuMyviQuE+Q... | [
"mineral",
"rock"
] | null | 1 |
math | grade-1 | purchases-do-you-have-enough-money | false | true |
A bookmark costs 22 cents. Do you have enough money to buy it? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAACtCAYAAADF/guOAACWyklEQVR4nOzdd5xcVd348c8t09vu7GzN9p5eCCkkIZQAUqRJld4EFQFRFOVRUFF/Ps+jomLDBviAgLTQIYQSAiG997Kbzfa+Ozt97j2/PzY7ZknbTUJLzvv12hfhzpk795x75853zpzzPYoQQiBJkiRJkiRJ0lFB/bQPQJIkSZIkSZKkI0cG+JIkSZIkSZJ0FDniAX53QlDyei8T3wrSnZCjfyRJkiRJkiTpkzSsAP/5pgQ/2hQ9YOD+TnuS2rDJqh6D65aHD/sAJUm... | [
"yes",
"no"
] | null | 1 |
math | kindergarten | count-scattered-shapes-up-to-10 | false | true | How many triangles are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAF2CAYAAAAbcOzWAAAxbUlEQVR4nO3dbW8cSbre+asf5kz3tLvn+BzAMHB8vLvwYOD1Yr32LrDAAsYC/gR+4X2/n80fRFJTIE2qxYdusjlLjqShyJlusVvMqsrKyozKh4jYF1U605JIFcmqyozM/P/eNdEqRqVKlVdGxH3HR957LwAAAACd8HHTAwAAAACwOgR8AAAAoEMI+AAAAECHEPABAACADiHgAwAAAB1CwAcAAAA6hIAPAAAAdAgBHwAAAOgQAj4AAADQIQR8AAAAoEMI+AAAAECHEPA... | [
"10",
"8",
"7",
"9"
] | null | 1 |
math | grade-8 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADqCAYAAACY/jKKAAAfCUlEQVR4nO3daZSU5bnu8X81DbRAQMEBFBEHFMUJoiBGHAAF3WY7JiJGszUaNc66ExPPh+x9zjqJ7hg1KkoSjRoVNYmKSSQigxoIKCCoKOIEiISWoyhBwQaarvOhunm60aant+qp4f9bK2vdd6VS77VWYrws3nqfVDqdTiNJkiQpEWWxA0iSJEnFxIItSZIkJciCLUmSJCXIgi1JkiQlyIItSZIkJciCLUmSJCXIgi1JkiQlyIKt/PHKRPjNmTD5pthJJEmSWi3lQTO... | [
"yes",
"no"
] | null | 1 |
math | grade-8 | make-predictions-with-scatter-plots | false | true | Based on the scatter plot below, which is a better prediction for x when y = 6? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAj7klEQVR4nO3df3CU5d3v8U8SFjbZGFbqhrhLEZ8EiHKUzYREFOExKCglDKXa+isKGB1R8FGPtaYz1KGtFakWnyCIihaoM+do/ZFaPIcaxurYM00Ed4gi7cYEjUhCICgbSEJCVvb8YbM1kI1Gruy9u3m//uK+r5v9fi9GzceL6742KRQKhQQAAADAiGSrGwAAAAASCQEbAAAAMIiADQAAABhEwAYAAAAMImADAAAABhGwAQAAAIMI2AAAAIBBMRWwOzs71dnZaXUbAAA... | [
"90",
"49"
] | null | 1 |
engineer | grade-6 | identify-the-experimental-question | false | true | Identify the question that Colton's experiment can best answer. The passage below describes an experiment. Read the passage and then follow the instructions below. Colton mixed bacteria into a nutrient-rich liquid where the bacteria could grow. He poured four ounces of the mixture into each of ten glass flasks. In five... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAEICAYAAAA0p80lAAEAAElEQVR4nOz92ZMl13XmC/62z+5nPnHixDzkhJwwcQApgAIlippKpSvW1bU2676y/gvK6r1f70s/lHXVe71dayuzeiizqntLXbdKEidRIAUSJABiynmKjDnOPPvcD9t9R2QygSSRAJFQYZm5xXzCj/v2tdfwfd8S//Jf/suUL+wL+8K+sM+R/dt/+28/k/9rANiTXRzXpVCq4lVKOIUyludiF0oYjo1tFYiSmCiVvtU1XYrFIqVSCdctYTt1LNPFtm10XSdNU5IkAUA... | [
"Do more bacteria grow in liquid with cinnamon than in liquid without cinnamon?",
"Does temperature affect how much bacteria can grow in liquid?"
] | null | 0 |
math | pre-k | fewer | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAASYAAACGCAYAAABwryeAAAAKGUlEQVR4nO3dW2zW9R3H8c/T0tK1tEWstAK2KCJEyMI4lLYzIx4miKDOmLCTxmxoyOKNN8hMjEUxwxu3mF1ooriLjciFiggKIS4UD9CqHNxYwlFKBVp4JD1bSst/F4+Fyvnw/L6/35++X4lBgv5/P96QzwPlsSaiKIoau6U9nVJbr9QTCQBMDUpI+ZnS2FypOFtKNB6PorpW39cCgJTpBdKg3Z2pr9yYLY3LS60WAFhq65V2dkiHu6VdnVJGa0/qGxglAL7kZ6Y... | 0 |
math | kindergarten | am-or-pm | false | true | Beth is looking for a new bed one afternoon. Her mom's watch shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABaCAYAAACCNCH/AAAH90lEQVR4nO3dTWgc9xkG8Hdt2Ylx0pl8EpoSQVpyKjOUpkmhWDm5gkJ6aC6FSoa2kU7KKVpBoYRCoYfYp9YnxTSgFRQcKEHqZZVLD4ViHwqrQwKFlqyPdZPsNk7S+Gt7UKRuZEvZXY93tJvfD3ywd/47z+zp8Z93ZiqdTqcTAABAIQ6VHQAAAMaJgg0AAAVSsAEAoEAKNgAAFEjBBgCAAinYAABQIAUbAAAKNNHrgTc//EvceP/NiM6ndzEOo6xy+L44/OALUTn+dNl... | [
"1:00 A.M.",
"1:00 P.M."
] | null | 1 |
math | grade-1 | subtraction-sentences-using-number-lines-up-to-20 | false | true | Which subtraction sentence does this model show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAWaklEQVR4nO3de1BTZ94H8G+4ySIQUEGlS4mwCxaL4KUCul28jPZeta2sdjoVd62t3X3dasextu5UW3a1ay86ZadTtzPr2hZHxYK1u46+rxVwilxE0FVGu1UD0oAlIEi4CJG8fxxPIIJC4Jhzyfczk0lykom/xwDnmye/8xydzWazgYhoiKoswOL/A078BJQsBKaGyF3R4GhlHEREJB8PuQsgIvU7YAQSsoRwqmZaGQcREcmLAZuIhuR6B/Ds/wJrJgJbk+SuZvC0Mg4... | [
"8–2=6",
"8–6=2",
"8–3=5",
"11–2=9"
] | null | 0 |
math | pre-k | are-there-enough | false | true | Are there enough carrots for every rabbit? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEECAYAAAASx0PMAABRfklEQVR4nO3dd5gc6WHf+W9V5+4JPTkPZgDMAIOcNgeSIkUuyWUWaZG2zpJlkZKs4JODfLrHZ0tny7Z0R8uWgyRblqmTaImkmHe5y7B5l5uwyBkDTM65c6r3/mjERViEnlAzv8/zUBQa3T1V+PKtebuqq8oyxhhERERERKQk7OVeABERERGR1UQTbBERERGREtIEW0RERESkhDTBFhEREREpIU2wRURERERKSBNsEREREZES0gRbRERERKSENMEWERERESkhTbBFRER... | [
"yes",
"no"
] | null | 1 |
math | pre-k | addition-sentences-up-to-10-what-does-the-model-show | false | true | Which addition sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABUCAYAAAC4PkCPAAAQQUlEQVR4nO3dXWwdZX7H8d/MnDefl8SJ7RDbGGchJAsiiUpSkSABrSrBBUGglkrbgqhYbZG4RO3NVoXdvSlSr3qFelNKVaRVL1hptduutBerSmxDt1rYpYEtJAFCEjsk2M7L8Xmfl15MnDiO7cTOzDPHM9+PhADneJ7n54nO8/dznnkeKwiCQAAAAAAiYSfdAQAAACBNKLABAACACFFgAwAAABGiwAYAAAAiRIENAAAARIgCGwAAAIgQBTYAAAAQIQpsAAAAIEIU2AA... | [
"8+1=9",
"6+1=7"
] | null | 1 |
math | grade-3 | lines-line-segments-and-rays | false | true | What is this? | "iVBORw0KGgoAAAANSUhEUgAAAG4AAABuCAYAAADGWyb7AAADWElEQVR4nO3cv08TYQDG8adcoS20YiWUSAwqCXEiIXGRSRK7uGg3jYOWxdE0/gP6DxhwZaFdnBwgcaQJDgbjZIKLkGjjz1yjQG1pKfWoA+XoFSrFQMsTn0/SQN/eC5f79t5rOpyrXC6XIXTaWr0D8m8UjpTCkVI4UgpHSuFIKRwphSOlcKQUjpTCkVI4UgpHSuFIKRwphSOlcKQUjpTCkVI4UgpHSuFIKRwphSOlcKQUjpTCkVI4UgpHSuFIKRwphSOlcKQUjpTCkVI... | [
"line",
"line segment",
"ray"
] | null | 0 |
science | grade-3 | classify-rocks-and-minerals-by-color-shape-and-texture | true | false | Select the rock with the lighter color. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAABgp0lEQVR4nO29WYwl2Xke+J0T292XvLlnZVV3VcvdbJLiTtEkJVsyWuJQsmhBwvjFmMeB4QfPYB6GwFgYQLYoD2ZsCBqAEGwKGFkeckbWeGAL8lCgpaFIURqK7FY3KZC9r1VdVZmVmXe/N9Zz5uHEf+JEZOTNrO6u3hR/4dbNGzduLCfOd/79/5mUUqKiiioqJf5WX0BFFb2dqQJIRRWtoAogFVW0giqAVFTRCqoAUlFFK6gCSEUVraAKIBVVtIIqgFRU0QqqAFJ... | 1 |
math | algebra-1 | domain-and-range-of-absolute-value-functions-graphs | false | true | What is the domain of this function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABkgklEQVR4nO39a3Rc9Z3n+39KVaX71ZItGRnJGIOJjWQwGOIbmDYBAgmJTTImOZ2EDD1pepJOJg96Vlb/uzPdvThM1nQnfTqTZJLMZALM6bPSoRvoxkZ2DBhs5GBjYctIgHGEkS3but/qvqtq7/8DI0XyTVX2/qlU0vv1xKvKtT/6au/au771ra1dHsdxHAEAAABwRU6mCwAAAABmExpsAAAAwEU02AAAAICLaLABTFJbW6t9+/aN3z5+/Ljmz5+vzs7ODFYFAED2oME... | [
"$\\{x \\mid x \\geq 0\\}$",
"$\\{x \\mid x>0\\}$",
"all real numbers",
"$\\{x \\mid x \\leq 0\\}$"
] | null | 2 |
science | grade-4 | identify-rocks-using-properties | true | false | Select the one substance that is not a rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEGCAYAAAD2aACLAAEAAElEQVR4nOz917Nt2ZXeif3mXH6t7c3Zx1/v0gMJD7AMq8giGd0tkopmtxRSdzBab3rS36BHvSoUoQhFKPTACDFIRtOqqohioVBIAJkw6a+/93i3vV3eTD3sc+/NBLIKJJBZSID3i9hn7bPN2mvvNb81xhzzG2OIH0+VuuFBWeM5nuM5fgnMc7jvw2kCdR2+VVs+Lp8T6zme41dDWYMb3vL+In/2uHxOrOd4jl8dT3iUqmeP6Z/0wiQO/yaO55eGEOIXvKL4Gzm... | 0 |
math | grade-3 | coordinate-planes-as-maps | false | true | What is at (4, 4)? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAE7CAYAAADn6/a0AABRBklEQVR4nO3deXxU5d338c9ZZsmeAGEHFauIuBIFpYKIFItVsS5FW1tttYq2bm2t3tanfZ7a+3apWru4VG19WZe22rvWurSi4l61NSLugGzKTkLW2c851/PHkJGQAAmZMAG+79drXmYyc67zYxIn31z5neuyjDEGERERERHJC7vQBYiIiIiI7EoUsEVERERE8kgBW0REREQkj9y2D26//XZefvnldg8OGTKEW265ZYcXJSIiIiKys7K2dJHjn/70JxzH4fTTT9/RNYm... | [
"flower shop",
"office supply store",
"hotel",
"science lab"
] | null | 3 |
math | grade-8 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAAO1UlEQVR4nO3deXRUZZ7G8acqlUqIISwSILiEEJAlKqJttN0ZFWhAaMQY2XRoYcbuo3LsGeweHW099ulup/WoM2JLsygCioINalAEEeSIDG6RHZQtDDsYMUAIIamaP0K9SYxCQt1736Tq+/nrd6/xvr9zwONDeFLXFw6HwwIAAADgCL/tBQAAAIBYQsAGAAAAHETABgAAABxEwAYAAAAcRMB224cf2t4AAAAAHiJgu61/fykQkB57zPYmAAAA8AAB22033igFg9Jf/iI... | [
"yes",
"no"
] | null | 0 |
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? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAAAhPUlEQVR4nO2deXhU5dn/v/dzZpIwyWQmQBCQRRQBi1r3uou2dafqa4ckotZqlbfu2UT7vtb5ta+tSBLcsAVfX61WkhC3uu/iWrdS3MUFFRDZM1vWmfPcvz8CGmKWWc55zpnhfK6L64LMOff3DjPfOec8y30DDg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4O1rAxsLDI6hwcBoesTmBnIxq4pVQX8T+CcDa... | [
"1\n12\n of a full turn",
"1\n10\n of a full turn",
"1\n9\n of a full turn",
"1\n11\n of a full turn"
] | null | 0 |
math | grade-2 | choose-the-appropriate-measuring-tool | true | false |
Which tool would help you put the correct amount of salt in a recipe for mashed potatoes? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAACoCAYAAAACcRc/AAAh/ElEQVR4nO2deZgU1b33P1W9zNbTPTP0TM/OsA0ICIIYFRANURDRGFG8cQleFxKvQRPNIy6PeS+JiZq4XQVJcHsVswjm1YgLuOWKgMqmYhCYAcaBYfa9Z+u1zvtH9VR3z4IC3T3dWJ/nmamuU8s5Vf3t39l/RxJCiDoPHOiGDj/4BDo6x4xRgnQDjEkFhxmkOrcQ25xDnSydk4kzrWDc363u5JlhbJqqOh2dY6XDD2VdUOuB8m6QnT71gC4qnRMh3aBqCKDTD7I... | 1 |
math | grade-4 | angles-of-90-180-270-and-360-degrees | false | true | What fraction of a turn is this angle? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABQCAYAAAAjrwKZAAAGCUlEQVR4nO3dT2jX9x3H8dev68lg4g7LaXOJHpNJ0NLMCtolFxUadTsYdzDWMT2Z1NEVtklFsdvQgjWetGudg2G8zPgH9eKfi6DCRoTcBhqjp8jAWNLb+O0Q4xLzp7F8Y/zZxyP8Ll+++fH+3Z58+Hw/31K5XC4HAAAoxBvzPQAAALxOBDYAABTozW+64fHIcM7eupQ79/rT9/SzqKomTfWNaapvTFvzujTVN76MWQEA4JVXmmkP9vX+G9ne3Zn7Qw9m/JINzevyZWd... | [
"1/4",
"1/2",
"1 full turn",
"3/4"
] | null | 3 |
math | grade-4 | compare-fractions-in-recipes | false | true | Does this recipe call for more mayonnaise or honey? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFwCAYAAACCdAwbAABpNUlEQVR4nO3deZzNZf/H8dc5szLGjBkMxpqlssvcEmKICNNNC5JKcScihLtuSyZUSqF+U5nC3Y1QSookUcg+liHZdzOG2ff1zDm/P8acHLPYzjFD7+fj4fHonO/1va7r+/1O53y+1/l8r8tgsVgsXGKxWDCbzZhMJus/o9GIi4sLzs7OODk5YTAYEBERcTSLxUJubi4mk4mcnBzMZjPOzs7Wf0ajUd9JIlIqGfIDbLPZTG5uLjk5OeTk5ODi4kKZMmX04SUiIqWCxWI... | [
"mayonnaise",
"honey"
] | null | 1 |
science | grade-4 | animal-adaptations-skins-and-body-coverings | true | true | Snow leopards live in the cold, snowy mountains of Central Asia. The snow leopard's skin is adapted to help the animal survive in cold places. Which animal's skin is also adapted for survival in cold places? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOzdebgcVZ3A/W/tva+3777fm5vkZk8IEHbCjoioKAqo6Li8Moqjo4A6o+MwiooL44Y6oqKgMrKIIAhEIBACCdn33H1fe9+7a3v/yOS+LCIBLzjj25/nyQPdXV3ndJ06dX916lenBNu2bcMwsCyLioqKioqKioqKior/m0RRRJZlBF3X7UpwX1FRUVFRUVFRUfF/nyiKiJXgvqKioqKioqKiouLvg2VZiH/rSlRUVFRUVFRUVFRUzJ9KgF9RUVFRUVFRUVH... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOz9d5wkV331j7/vrdC5e/LMzmyYzauNyjmghAJCCBAIJAEy8WcZiwcMSIANxjLIJtsYMNgEgYSRCbIQSQGUw64255wn59Cpwr3fP251z66E0AoWeB7/+rxeI2l6qrtu1a1q1bnnfM5HaK11EAQopaihhhpqqKGGGmqooYYa/t+ElBLbthFC/LmHUkMN/ysha8S5hhpqqKGGGmqooYYa/t+HUoogCP7cw6ihhv+1kDXiXEMNNdRQQw011FBDDf87UHu... | 0 |
math | grade-8 | parts-of-a-circle | false | true | What is O? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADICAYAAACdx5VnAAAk9UlEQVR4nO3deVxVZeLH8S9w2UHBBSUEXHBfyF0jc0ksK5fSn1Nqm5blVKMt1tS0r1NNi+05ltZoaZNmmmaaAmnhimi5lsiiuKCiooBwgd8f6glyyxF9zr183q+XL5/nOefCF71/fO/hued6lJWVlQkAAACAW/A0HQAAAABA5aHgAwAAAG6Egg8AAAC4EU8PDw8lJiaedOCyyy5TeHj4Sevp6eny8PDQBx98oIkTJ8rDw0NOp/OCBx08eLB69+5dKV9r9erVuuWWWxQ... | [
"chord",
"center",
"radius"
] | null | 1 |
math | grade-6 | identify-complementary-supplementary-vertical-adjacent-and-congruent-angles | false | true | Which angle is supplementary to \angle{2}? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD0CAYAAAChIlFhAAAw20lEQVR4nO3df1jUZb7/8dcQWJAH2QY3TuGEsly6ywp41u8qlokapdGldoFmm9igJFir4ulsWbkpp1+2u2eDPWcVlhQIO7kISV5RGmvisRUqT4wQ15VLXtBAHnaDdaSWKUH4/uHCaoLyY4YZ4Pm4rr2ubfzM537PtfvHq7f3/b4NnZ2dnUI3m80mPz8/V5cBAACAYcrD1QW4m6ioKNlsNleXAQAAgGHKQAf7UgaDQZMnT1Z5eTmdbAAAAPQbAftbDAaDJGnixIn66KO... | [
"\\angle{1}",
"\\angle{6}",
"\\angle{5}",
"\\angle{3}"
] | null | 2 |
science | grade-2 | identify-solids-liquids-and-gases | true | false | Select the liquid. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AAAV80lEQVR4nO2daaxdVb3Af2vt6Qx36j2daCkytLWP+6RSBMG0KFHxQ5+BWIMfRBODkSjRQjTG5EVrNMbgByPE2A/PiYSHJDiQV4OCLxGExkdaX0uBB6W0lEEot/OdzrT3/r8P65w7d6C0vWevvX7J6Tl7n332Weuu3/mvtf57qNp2XOS9Zej2cDjOK8MJ7B6Ftxowz4e1fWa9dkI65opuD95bNq9Hkon12gnpmEva/jVlYp2em6I4HCfGSenoOJyUjo7DSenoOJy... | 0 |
science | grade-3 | compare-properties-of-objects | false | true | Which property do these three objects have in common? Select the best answer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADQCAYAAAByQhWRAADZVElEQVR4nOz9d7Qk2X3fCX7uvWHSZz5fr1756qqurvYe3UDDkwAIkqJIStRIlIaixDMaza52Zs/R6GjP7pyhztFqRt7MSORQEMklRSuKokg4wjXQMG3Rpqqrq8u75036DHvv3T8i3qvqRjcItEG5+JwTleZlRUZGRkZ87+9+f7+fsNZagDAMWVxcpNfrkaYpBQVXG8dxaDQazM7OUiqV3tX3Ko7/gmuN4vgvuJn5QR7/BQU3IsJaa4Mg4PTp0+zevZtSqYTruld7uwo... | [
"stretchy",
"fuzzy",
"sticky"
] | null | 2 |
math | grade-2 | how-much-more-to-make-a-dollar | true | true | You have these coins: Which coins do you need to make a dollar? | "iVBORw0KGgoAAAANSUhEUgAAAUEAAACaCAYAAAA3gPppAACgwUlEQVR4nOydd5wcd3n/3zO7O9vbtb3ei+506s3q3V0u4IINwbQAoSSYEEgghZAfJSGEFAKmN9sY3CVZtmVLtmRZvZ7K9aqru3t7t73OzO+P3VtJLsSAi2zv+/XSS7q6M9/VPvvUzyOoqqqSI0eOHO9SxLf6AnLkyJHjrSRnBHPkyPGuJmcEc+TI8a4mZwRz5MjxriZnBHPkyPGuRvtWX8DlgKqqKIqCKKbfE8LhEG73BFNT0+h0OqamppEkHS6Xi7KyciRJQlEUNBr... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5kAAACaCAYAAAAjKowVAAD9nUlEQVR4nOzdZ5gc13Xg/X+Frs5pco7AIOdAAiAAAkxipiiKFCUr2bKik2Tv2muvZVteW9qVLXvXu7ZeS1a2EpPEnECQIAiAyBikASbnme6Z6ekcKr0feqZJigoURZAgcX/Pw4eYVF33dmFQp+6550i2bdsIgiBcoiRJeqtPQRAEQRAE4R1FfqtPQBAEQRAEQRAEQXjnEEGmIAiCIAiCIAiC8IYRQaYgCIIgCIIgCILwhhFBpiAIgiAIgiAIgvCGEUGmIAiCIAi... | 2 |
math | grade-1 | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABb3klEQVR4nO3de1yUZfo/8A+IAwLjgeHgUOqACppMJyzAI0JpB8FKK6XfHtV2a7dkO2641VarnXehtr7tqrvtIbRNK8G2NFFQEyzp4KAG6jCeBgcZT8MgjAi/P9iZGJjDPSeGw+f9evmSmbmf57kz5jXX3M91X1dAe3t7O4iIiIiIyCsC/T0BIiIiIqL+hAE2EREREZEXMcAmIiIiIvIiBthERERERF7EAJuIiIiIyIuC/D0B8r+LpstoammFsbm14++Wjr+DBgUiLDg... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABteElEQVR4nO3de1zUVf4/8BeIA8KMF4Z7pQMiaDJpYQFeEqXUrdBS25R+u7WrtNtlk2rTTavdbLWy3YJt69uutlttoW1aCVZqoqAmWFLaoAbqMN4GBhlvM4Mwcvn9wc7EbWY+n7kwXF7Px8OHcznnfA44U/Oe9znv49PS0tICIiIiIiJyCx8fH29PgcjrfL09ASIiIiIiIupbGGgSERERERGRWzHQJCIiIiIiIrdioElERERERERuxUCTiIiIiIiI3MrP2xMg77t... | 0 |
math | grade-2 | find-the-next-shape-in-a-repeating-pattern | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD1CAYAAAAlI4EUAAAgHUlEQVR4nO3daZAc9Z3m8Scz6+pWnzpa6EaHJQ4hCR1I6ABkTmNsyzbLTmDDsDGLd8YOs2vPeNczC8PaMI6ZtXeI8bAbtrGDgbW1mGCMGDDmGi6LW2iQjJAECAkhWlILtaRu9VGVVZn7omld6KisrsrM+tf3E+HwG7ry1z891f10VlaW5fu+LwAAAABGsKMeAAAAAED5UPABAAAAg1DwAQAAAINQ8AEAAACDUPABAAAAg1DwAQAAAINQ8AEAAACDUPABAAAAg1DwAQA... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAAD1CAYAAACRDCAyAAAlC0lEQVR4nO3deZAc5Znn8V9m1t23jhY6AUmWDAjdFzoQN9jGNj6WnfDBsDGLd8YOM2vPeNczi8dr43HsrL1DjIfdMMYObNbWYoIxYsCYa7gsTgsZgYRuJITUklpSd6tb1d2VWZW5fzSt++isrsqsyvp+IvyHw+7KR49+qs6n3nzfMjzP8wQAAAAgEgzDCLuEimSGXQAAAAAAlBuDDwAAAIDIY/ABAAAAEHkMPgAAAAAij8EHAAAAQOQx+AAAAACIPAYfAAAAAJH... | 0 |
science | grade-7 | identify-how-particle-motion-affects-temperature-and-pressure | false | true | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAAB9kUlEQVR4nO3de1xb9f0/8FdIAiEkQAnlTu+QrrWFFuzNG22nU9tUN+1m6bx9N4u3bSrod1+nlqqb+86i/qabQv1qrUrVddM1tDpvpV560WCh9mKgdyj0AhQIJCEkfH5/pDklEEqAXD95Px9WyMnJOe+k5c37nM9NxBhjCGEtLc04duw4urvNEIlE/g6HEACAVCpFQkIixo0b5+9QCMco/5FARPnPNYm/A/Cn3t5eNDU1gbFehIeH+zscQpy0tDQjOTkZUqnU36EQDlH... | [
"sample B",
"neither; the samples have the same temperature",
"sample A"
] | null | 0 |
science | grade-6 | use-scientific-names-to-classify-organisms | true | true | This organism is a red-eyed tree frog. Its scientific name is Agalychnis callidryas. Select the organism in the same species as the red-eyed tree frog. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAADsIUlEQVR4nOy9eZwcVbn//z6nqvdt9mSyTBKyEkISwg4GRGQREWVRBFwAr1dFrgJewHu9Xzf8IYq4ISKLCldBEBVxQ1llh0CAbBBC9kky+0xP70vVOb8/qrunu6cnBAzi1Xq/Xp3p7jp16tSp7s5znvo8zyO01tqyLJRSuLi4uLi4uLi4uLj830RKiWmaiGKxqF3j3sXFxcXFxcXFxeX/PlJKpGvcu7i4uLi4uLi4uPxzoJRCvtWDcHFxcXFxcXFxcXHZe7gGvouLi4u... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADMCAYAAABp7h4wAAEAAElEQVR4nOydd7wdVbn+v2vN7HLOPr2kF9JISAIJoXcBkSqKoDRFyr1XRa4gXrDdn+LFD6IIFkSkKHAVBVERuIpSlBJaIEBIAgFSSG+nl11n1vr9sWZmzy7n5AQC6L3z8BnO3lPXrJnZWc88z/u+QmutHcdBKUWECBEiRIgQIUKECBH+OSGlxLZthBDvd1MiRNghZERCI0SIECFChAgRIkT454dSCsdx3u9mRIgwIohcLqff70ZEiBAhQoQIESJEiBBh1+APWzX... | 1 |
math | grade-5 | parts-of-a-circle | false | true | What is \line{FG}? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADICAYAAACdx5VnAAAlxElEQVR4nO3deVxVdeL/8feFy2VXQRMXEhRwX3EpRRNNNMpttKlGLZsWm7ZfqzU2TdPUt6lmyvZpKi0t/Zp9p3HPFXCNyjVQc0HFfWVRQLYL/P5Aj9xBURM9h8vr+Xjw8JzPOffwvnD+eHP8nHNtZWVlZQIAAADgFuxmB7gWbDbbVTs2fx8BAADASmpFwaeEAwAAoLbwMDsAAAAAgOrjYbPZtHz58kobevXqpcaNG1caT09Pl81m07/+9S9NmjRJNptNTqfzqge9/fb... | [
"center",
"diameter",
"chord"
] | null | 2 |
science | grade-5 | classify-fruits-and-vegetables-as-plant-parts | false | true | People use blueberry bushes for food. We usually eat the part of this plant that contains the seeds. It grows from a pollinated flower. Which part of the blueberry bush do we usually eat? People use blueberry bushes for food. We usually eat the part of this plant that contains the seeds. It grows from a pollinated flow... | "iVBORw0KGgoAAAANSUhEUgAAARoAAADKCAYAAAB6+o8hAAEAAElEQVR4nOz92Y5k2ZKmiX0ia9hbVc3MzT08Is6UeTqHyq4sEtVVXUQBJMALggQ49CvwDepd6iFIoJ+BvG+C4AXRDdaUlSeHM+SJE4MPNqjqHtYgvJBlHkmiWQABdsUBWBvQCAsPd3XVvdeSJfLL//8i/+Jf/AvjP13/6fpP1/9fXP/yX/7LH+TvjQDlv/ivsXrhNO/8wZdf8Hp6y/tvF3abePvTn8JJeP/8yN5mTtM9uR+QbeX+sPH27ZGY4b/91/8dv/nNb5AcydO... | [
"the fruit",
"the leaves",
"the root"
] | null | 0 |
math | calculus | determine-continuity-on-an-interval-using-graphs | false | true | Is the function f(x) continuous on the open interval (2,8)? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB65klEQVR4nO3deWAU5f0/8PeeuSEXJDGYAEajiUkgEDAcil8QrVYrWAUVBbzqfVStVi0oIrWelaq1tlawYlXqUQXDJXciBAIEEhDCFRJCjk12k71ndmd+f9DkRwQkgXnYbPJ+/aNZdt75ZJ7dZz/77OyMTlVVFUREREREpAl9oAsgIiIiIupO2GATEREREWmIDTYRERERkYbYYBNROytXrkT//v1xzTXXAACuvfZafPXVVye8ryzLuOSSS7Bhw4azWSIREVGXpuOXHIn... | [
"no",
"yes"
] | null | 1 |
math | grade-8 | identify-linear-and-nonlinear-functions-graphs-and-equations | false | true | The graph shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABiLklEQVR4nO39e3BU953n/7+6W637FQmELCxhjI0tjLAx2AGDjQfHduzEG3CyOPnl4qlMJs5OJpns1GzNbyqT2mQ9/qZqxkklk2ST7GbjeCbfysa/EE98EQQHbIiIwcggG0FsjEEXQJeWWlLfT3ef8/tDSEZcjBrOh1aj56NKBX05L711Tven3/3pT3d7HMdxBAAAAMAV3mwXAAAAAFxJaLABAAAAF9FgAwAAAC6iwQYw4c4779Szzz47cfq3v/2tbrzxRtm2nb2iAAD... | [
"nonlinear",
"linear"
] | null | 1 |
math | grade-1 | comparing-review | true | false | Which group has more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMwAAACGCAYAAACR4WX4AAAc5ElEQVR4nO3daXAc553f8W/33AdmBufgvgkSPADwkmTZJkHJKyeOTS5F+dhU0Y68VjmVtb2x4qpNpXyUFVel8iLyodqqvFCVt8pOvLFjWaJ8rkSZpA7ziEgAvISLHACDG5gbc08/eTEAeIgkMMQQGNnP5w0xnO6enn/Pr/vp4+lWhBBiKglDUQhnIC2QJGmRXoEiHWyygtsIylRCiLOhjZ4tSSp8DztAPxjNvqgywmZbNk2SJGWFM9C/AJNJGIiCGkpn35BhkaT... | 1 |
math | grade-8 | describe-a-sequence-of-transformations | false | true | What combination of transformations is shown below? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEyCAYAAADA5Kd8AAAzOElEQVR4nO3dd3RUdf7G8Wdm0hMCIQTMUBLBgCjSAipFmnQEpKkLyO4qKrqiWBF7RZciCKg0xQYKKigiSu9VIkU6yBLKhE4SQiZtZn5/ZJPf2iAJN7mZyft1zp6Tzdz7/TwJZ888ufudey0ej8cjAAAAAIawmh0AAAAA8CW/KdhJSUklHoCZvjXTrLnM9K2ZZs4FAOBKWfK2iCQlJcnhcJidBwBkt9vlcDgUHx9vdhQAAArNL++L6OhoU97QEhISmOlDM82ay0zfmim... | [
"rotation, then translation",
"rotation, then reflection",
"translation, then reflection",
"translation, then rotation"
] | null | 3 |
science | grade-5 | 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 | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAppElEQVR4nO3deXxU5aHw8d+ZfSaTZBLIOtlYRSubGEJtUVuruAFitdZbq13eXm2tIGi39+29b+1yW1dQu9622va21y6AxKhovb4VaysQlAQUDEvWmUwmISGZzJLZ3z9OJpnJBoFkMsvz/Xz8SIZkcmaY+c1zluccKRwOhzt8cMIN/UEIhBEEQZgSKgkylbDAAAUakDq84fB+x0wvliAIqa4qC1TH3fIXRRq4IEOukSAIwlToD0KDC2w+OOYGhSMg/4WIjSAIUy1... | 1 |
engineer | grade-5 | identify-laboratory-tools | true | false | Select the Erlenmeyer flask. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAPoAAAD6CAYAAACI7Fo9AAAGp0lEQVR4nO3Zy6tdZxnH8fdd+3auaVKrvUkFwYo40omK4AUER6FUm0NTUeofoCOHYvEvcOLATpVCSmkHKghCQYQW24lOFCFatFebxpxzmuSke++11+vEuaQ5Ocee3+cz2qOH52HtL2uwSgEAAAAAAAAAAACAD5R63Atw+z311K/PjEaLB1pXP9PV4cFhqHd3tZxppW3UUjZbLZPWaq2tLUst+620f5fa/twN05drnf9hZ2fnxnHfwK0R+gn05JNPTk6duetbk9H... | 2 |
math | grade-6 | model-and-solve-equations-using-algebra-tiles | true | false | Which equation does this set of algebra tiles represent? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAAA2CAYAAAAlHWAMAAAFN0lEQVR4nO3d30vTXRwH8Pd3asw9/mAxHdpFmD4+FxkVQrux+IIXJWVmZUpgEN10s6LL/oDoIqmgmxDCi4JBoWaSFASVRckuuqoNTVg0cUlfJZdb/tj2fi72aO4hv5nuTCafFxx0Z+fwOQfefHd2MY5Gkl/mgdEo8D0OxAgh/liuBhTmAH/bAOcWQPsyR3rDG70ssZm4ioDcj9Hki7ItwD9/JVMnxJ/6HgeGI0BoHhiJApZwLPmGhEqsR2FOMkMAMBMHLPFlbwi... | 3 |
math | pre-k | addition-sentences-up-to-10-which-model-matches | true | false | Which shows 2+4=6? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAagAAABKCAYAAADuScD9AAANmElEQVR4nO3dW4xc913A8e//fy5z25u9Trq2GyeKY6dOCCQg4iRt36KWAkWqqoaqqiKekFBBKELwxgsPIJUHKCDxDA9QiipEUwLPhZJggVSpDZEd46q+rNeXdXZ3bjtnzvn/eTg76x17PDtndv4zZ09/H8ny2jN7znxXZ89/zplzUdZauxbB5RbUE4gtQgghxNT5CuY9OFOFj4Wg1jrWXtia9csSQggh7ju/AP6HrfQfx0N4tpaOXkIIIcS01RO42ISbEVxqgd6... | 1 |
math | grade-2 | skip-counting-stories | false | true | Each drawer in the dresser has 10 T-shirts. How many T-shirts are in 5 drawers? | "iVBORw0KGgoAAAANSUhEUgAAAVcAAADDCAYAAAA2sVL5AAAjx0lEQVR4nO3deXiM5/rA8e9E9lUSRAhCJLGFIDRCrRVrWpTUUvqLpfS0pEXbU4qqKm2tQXFq6UZLHElJG0s1YqetpcSRWipIgzaErLL+/ohMM5KQZd68Mu7PdeW65t3vGbd7nnne5dFcS83LQ4jH3Pi5kQCsnt5H5UiEeLTxcyMxUjsIIYQwRJVSXO9k5dFh3116HUrmTpY0lMXjT3JWVFSFi+uOm1ksupjx0AQ8fDubq+m5xCTnMOVMWkUPKUSFSM6KylCh4jrrXDp... | [
"30",
"50",
"59",
"40"
] | null | 1 |
math | pre-k | more | true | false | Which group has more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAASYAAACGCAYAAABwryeAAAAJbklEQVR4nO3dy29U5x3G8WeunouNXRhziyqghTRtkgJKU7rsP0CqCIWSfXckq/wDlars0mzaqNtU2bSqSqWw6KpZdQVICWkaEqBSqcLFscHGM+PxeObM6WIywRACGOb9vb/xfD8bY9nM+57nWM+5z2TSNE1vrEmXV6R6InVTAYCpfEaaykkHKtKOopS50U7TM8uxpwUAfUe2SPlLK/1vdhWlH1T7rQUAluqJ9HlTur4mXVyRssvd/g8oJQCxTOX6HSRJjUTKJut... | 0 |
science | grade-4 | use-evidence-to-classify-mammals-birds-fish-reptiles-and-amphibians | true | false | Fish are a group of animals with similar traits. The following traits can be used to identify fish: They have fins, not limbs.
They make eggs with no shells. Observe the animals and read the descriptions. Select the one animal that has all of the fish traits listed above. Adult tiger salamanders have moist, smooth skin... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACmCAYAAACcAuREAADSiklEQVR4nOydeZwcVbn+v+dU9TZr9oRshAQIixD2LewE+RG2qwiRK/smIqssyqIioOBFdhEFZF8uVxRBAxJAdjQmgUACAgZCIAkh6+zT3VXnnN8fp6q6qqcnmUDAe6EePkOmq6vrnDpV3fP0877v84oZrcaMr4dGhxQpUqRIkSJFihQpPhO0K3i7E0Sbb0xKPFOkSJEiRYoUKVJ81mhXIIwx5t89kRQpUqRIkSJFihRfDrjxB0/OW4YUInoshAB08G8S4TYH+68... | 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. A steamboat's engine burned coal. An outdoor stove burned propane, a fuel made from natural gas. ... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAADOCAYAAAB4pWlzAAEAAElEQVR4nOz9WaykeZreh/3+/2/fYo84+zm5VGZV1tJbddcsbM3S0+RwBkOOTIIySF5ZskXSsg0DBgiRti98Z3i5kWXYEiyCpiFQ5ngokSbVGIiaGU4v0z1T013VmVVZVVm5nf3EifXb988XX07SpUtT6gbK8QPyIpF5TkaciBf5xLs8j/jjddO86oCnsGHDhg0bNmzYsGHDfycEFXwcgfDLptkIzw0bNmzYsGHDhg3/XRNUIJqmaX7aD2TDhg0bNmzYsGHD/3+... | 0 |
math | grade-1 | subtraction-sentences-using-number-lines-up-to-20 | false | true | Which subtraction sentence does this model show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAWbUlEQVR4nO3de1BTZ94H8G+4mUWuKqh0KRG6YLEIXiqg28XLaO9V18pqp1Nx19ra3detdhxr6061ZVdbe9EpnU7dzqy1LY6KC9buOvq+VoJT5CKCrjLarRqQBiwBgwkXIZL3j+MJRFQSPHDOCd/PTCbJSSb+fhI43zx5znM0drvdDiKSTbUVWPR/wPGfgdL5wOQwuSvqG/ZBREQk8JK7AKLBbL8BSMoRQp2asQ8iIqIuDNhEMrnWDiz4X2D1eGBLitzV9B37ICIicsa... | [
"11–3=8",
"7–5=2",
"10–6=4",
"7–3=4"
] | null | 3 |
math | kindergarten | fewer-and-more-compare-by-counting | true | false | Which group has more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAMKElEQVR4nO3d3W9UdR7H8c+ZaYexUiD0yQ0sUdOyrF4ATUDRBBKJIJpCVjfhxn9gE7LZLN6YJYDG3b1p9tYLvTRxDUEDvbEYiMSElYoumMhTicSA2tJWaMtTp505ezHUEB6WmTnnzPd3+L1fSVMJKfP9zOnnPI7nBGEYhkMF6dx1abIozYQCkJCGQGrOSl1NUkdOCoamwnBgwnoswD/PzJMaBq+X//CbnPS7R8vtBJCMyaJ05pr0c0E6e13KTMyU/4LyAclrzpa... | 0 |
math | pre-k | represent-numbers-with-pictures-up-to-5 | true | false | Which shows 2? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAANTElEQVR4nO3cfYwc913H8fdvZvbh9m739uLzneP6qXEbx6a1r4XGjWjSBKUIIZxKLUKIVKRCAqHKCAqVwoMiJURqWkUIgUD9g1Kl/MVDVTV1oKC0aZKSEhtQnbrE2EnjS3O273xPe7fPuzPz44/NJQ5xXLe9u6/P+3lJlu0979zM1/vemZ2bXee999MdeLEB1QRij4iskchBMYR3FmA8C2667f2xZevVEuk/B0sQvdDo/eX6LOwZ7NUpImujmsCpOpzvwOkGBMt... | 0 |
math | calculus | find-limits-at-vertical-asymptotes-using-graphs | false | true | The graph shows f(x). The dashed line is a vertical asymptote. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AABz5ElEQVR4nO3de3xU9Z0//teZ++QekpCEQIKAoMEEAUGjRLBSpdLaorXaflvLbrePfrta7X5bv7b9dfvdbVm3u63ttmut3e9a0bXfdktrb2BUFAQMIhAgkIAQIuRCyGWSyWTu5/r7YzIhgVxmyDmZSeb1fDx4hMyceeWTyZwz7/OZz/l8BE3TNBARERERkS5MiW4AEREREdFMwgKbiIiIiEhHLLCJiIiIiHTEApsohezatQvz58/Hxo0bE90UIiKiGUvgRY5EqWP9+vX... | [
"$\\lim _{x \\rightarrow 4^{-}} f(x)=\\infty$",
"$\\lim _{x \\rightarrow 4^{-}} f(x)=-\\infty$"
] | null | 0 |
technology | grade | cables | false | true | What kind of computer related plug or port do you see here? | "iVBORw0KGgoAAAANSUhEUgAAAV4AAAEsCAYAAACLwdvQAAEAAElEQVR4nOz9abRtV3mmCT6zWe1uTncb3asehCQQIMCE6RsJGSR6g8PGDrvsighnRjoyK2tUVOWvqqz8UT9qVI4aGU2OGhHpdEaEwRXhwsaOQNjIFggQohMGgSwkQEi690q3Pf3Z3WrmnPVjrrnOOvseNUY0as43xr773N3vtdZ+1zff7/3eT7zrXe9yzjmstVhrMca0F+ccUsqL/i+lxDmHcw6cRgiBlBIhBN3XstYCYK3FOYdSiiiKEEJgjKGu6/Z1w2OccwAIIdr... | [
"VGA plug",
"VGA port",
"Serial port",
"HDMI port"
] | null | 0 |
math | pre-k | count-pennies | false | true | How much money is there? | "iVBORw0KGgoAAAANSUhEUgAAAL0AAAB+CAYAAABxqxAqAAA6S0lEQVR4nO3dd5Bl133Y+e+5+eXQOfd0munJCRMADBLBAAaAomjLpmRr17JMy0G2VFatU6298u7W1q7tteUgWxIVKFGkKIoJAEEiZ2BmMDnHns75vX755rN/vMFIrh2SMwNMtwi8XxUKNT1V0/fzzu/de0/6HSGllDSiER+iUNb6AhrRiNWORtI34kMXjaRvxIcuGknfiA9daKvxSzy7RqVSwXFsapUKvutQzc3jBhJN0zCTGaLRGPFEEsOKEEvEEUJBCLEal3dXo2H... | [
"5¢",
"6¢",
"4¢"
] | null | 1 |
math | grade-2 | purchases-do-you-have-enough-money-up-to-1-dollar | false | true |
A brown marble costs 5 cents. Do you have enough money to buy it? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAABpCAYAAABPh1csAABUOUlEQVR4nO3deZgU1dnw4V9V9T7dPfu+r+z7LougggYVlyhucY3RJCZq8r5JTPSL0UTfRE00MYkmJsa4GxMVAREVBMQFBBlZlJ1ZmbVnpme6e3qrOt8fzXQYGGCQRR3PfV1zwfRUVZ/nVFf106dPPaUIIQSSJEmSJEmSJA0I6ufdAEmSJEmSJEmSjh+Z4EuSJEmSJEnSAHLcE/yOiKB4aSdjlnfREZGzfyRJkiRJkiTpZDqqBP+Vhgh3bQ0eNnFf0RqlKmBQ6dW5dn3... | [
"no",
"yes"
] | null | 1 |
science | grade-4 | compare-properties-of-materials | true | false | Which would smell the most? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AAAeRElEQVR4nO2d6W9cV/2HP/fOvbPPnX3zeMYz3oMbugCNKAXaooIqUYF4x6sigSpEoQJRBBJLK9E/oG+gIJCgKBLKG178KtoX9EWhBNLEcZw0beIlHs/i2fd9vef3wtxTT5q2iZfM2D6PFMUej51z3afn3nPOd+EulAmZMwAmFRiMu0q1D6zUgWQHsArAw5bt13kmJGNYmFTAnGH741r//dd5JiRjmCj+dcn7r/HDGQqD8eEwKRkjB5OSMXIwKRkjB5OSMXIwKRk... | 1 |
math | grade-1 | times-of-everyday-events | true | false |
Danny is eating lunch. What time is it?
Choose the more likely time. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAAA2CAYAAAAlHWAMAAALIElEQVR4nO2db1BUZRvGr7P/iGVBVpd1EQSWWi0jSIsUlWRyRwx6My1Sg7CIaKiRRj+kNTVaaZtfmsZqypymhklsKoo0LSGtSAcUZQxqChHMMQIXhuI/ssD1fqDdPO0usOrKW+/zm9lh9r7v57nv++E65+x5FuZIJNkyAJzuBbqGgEFCIPAZlQQEKwGLFpiqAaSWC+SxzokuS/BvYm4IoKrvHXkTrgFmBo2oTiDwla4hoK4HaB4ATvUCis7BEYcQleByCFaOaAg... | 0 |
math | grade-1 | flip-turn-and-slide | false | true | What has been done to this letter? | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAI3UlEQVR4nO3dXUxb5x0G8AcwPgaDcdtA6lBoyEqTDDZXCWRqNxQTe+rCpCpRNylTUw1Pu1h3sd5MYpOSyVGEtN1M0y42TZMG07QPaZuSTWu6VUCEqm5VoIvTQpqOhNBQkvARvmM4tvHZBZAGYuPX5tg+9vv8JC7A7/mf18aPzofP+Tvv8OHDmsvlgh56e3uhaRpYL/l6Fy9e1KVWprlcLkO/zrLVM7lcLvh8Pl0KnjlzBpqmsd426uUKvq+MVS9fl0pEZGgMOpEEGHQ... | [
"turn",
"flip",
"slide"
] | null | 0 |
math | grade-8 | classify-quadrilaterals | false | true | What name best describes this shape? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADCCAYAAABzAbXRAAAh9klEQVR4nO3dXYxc93nf8d+Z95lzZs7Mcl8iChYNkXVExSVpm9nIIbVciUosGa5gybIdK5AQlclFEaBRepeg6E0bBAgKFEFTAUXByLBlq3JU27UD1VJELbkkbZUyLYo2TFoRVZOGRO8Ld+bMnDNn3k8vhty1LEoiubN7Zma/n8uz5M6j5Qr4zX/+z/MYQRAEAgAAANATkbALAAAAAIYJARsAAADoIQI2AAAA0EMEbAAAAKCHCNgAAABADxGwAQAAgB4iYAMAAAA9RMA... | [
"square",
"rhombus",
"parallelogram",
"trapezoid"
] | null | 3 |
math | grade-3 | compare-fractions-using-models | false | true | "iVBORw0KGgoAAAANSUhEUgAAAtUAAAC5CAYAAADnGsNjAAAv70lEQVR4nO3dd3RU1d7G8e+kThqkh4SEKhiKhE7oVak2BJWiiEixgh3sXkW5cl8LXlFQsKCIguBFkC4ivQZBOqFEehIgDVJnv3/EjISEFAYIwvNZiyVz5ux9fvvMGJ7Z2eeMxRhjEBERERGRi+ZU1gWIiIiIiPzTKVSLiIiIiDhIoVpERERExEEK1SIiIiIiDlKoFhERERFxkEK1iIiIiIiDFKpFRERERBykUC0iIiIi4iCFahERERERBylUi4iIiIg4SKFaRERERMR... | [
"<",
"=",
">"
] | null | 0 | |
math | grade-7 | rational-numbers-find-the-sign | false | true | The number line shows an unknown number, x. Is – x positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAlwAAAApCAYAAADgbPfrAAAF80lEQVR4nO3dTWgUdxzG8WeS7ItZg9naRHtImlIESdVUXddEPEhtsZBKs9aLF9GLVhF6ETx46UEEr0UpgpcKRoUSK1ZoaYuuacvuJmuQLsZawRClxLW+pGZ133R7CFlN87Jrkslkku/nNpMhPMvs4dmZ3/zHyOVyOQE21traKsMwtG3bNqujYJpwzgHYTZnVAYDJunPnjtURMM045wDspujClclkFI1GFQ6HVV1dzS9LADBRvC+jznBC9/oyivdlVFvn1ILKMm3ctEA... | [
"positive",
"negative"
] | null | 1 |
math | grade-6 | reflection-rotation-and-translation | false | true | How has this figure been transformed? It has been... | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAIn0lEQVR4nO3dX2xT5xkG8CfBDnYSY5OkwSEbiIkECggKVMpW8ecw2MVUQFUuWtapUiIN2ovdhatdwHHvqNReTh2TmkiVSsWkLhNM3NAQL0hoW9IaNQlJCm1idTgFJ3ViEzuOw9lFEohDHJ84Pj6f/T0/CaHYr998NucR/nfer+jo0aOaoijIBq/XC03TwH6Z97t161ZWeplNURShH2fZ+lkURYGqqllp6PF4oGka+62hX6HgcSVWv+KsdCIioTHoRBJg0IkkwKATSYB... | [
"reflected",
"rotated",
"translated"
] | null | 0 |
math | grade-4 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC7CAYAAABfLOnYAAAZaElEQVR4nO3d63NUdZ7H8c9pTpJO0iE3uiGY4SZEiMCIOhZaBWUxVUO5O854mcIRRGFx4dH+N/sE1h1QxBlxVaZ012KqhrWgSilH5SoEwkUQDKTJjc6lk3T32QeE80t2xiaX7j7ndL9fj84vdQ75VpmUn5z+nN+xHMdxBAAAACAnQl4PAAAAABQTAjYAAACQQwRsAAAAIIcI2AAAAEAOEbABAACAHCJgAwAAADlEwAYAAAByyPZ6gFz45MMe/fjjqGpq+HthpkZGHGU... | [
"yes",
"no"
] | null | 0 |
math | grade-2 | cubes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAWM0lEQVR4nO2dTXAU13bH//d2t2Y0GiFpJL4lATHIBa9gKLsq4IXDQ4k3uGwvbN4KyAaXUxWbV7y8bBKTDa7KInE9nu0sYuxFwLvYC+PAikDAC7AXLiRXmbIkPxAaJB5oRiM0n5rue7O40z0aaST00Z8z97fR0GpuH8399+1zT597LuGc80ezwEgOmDEAnUMi8R0qAVoVYFcE2NgEkEdFzr9/6rVZEsnyObAOUIdz4h+bm4DnW4SqJRK/MWMAP2eBiVlgKAfQp7r... | 2 |
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? | "iVBORw0KGgoAAAANSUhEUgAAALEAAAB2CAYAAACHxHLJAAAYQUlEQVR4nO2df1ATZ/7H30pCJDmiBDN6bK9BxK/gxHoMMNbaxtPOCf01CMwg9OrYOp1i+adj+UMpOv7DDxm/xXZ651k79UYdTjvUQTqdAZ3aa6FMFcjY3jGCV6wnEH4YSICQhZBNnu8ffLNHIIFNsvnpvmYyk012P8+zu+999rOf57PPs4IQQiAgEMaIgl0BgfDh5s2b+O6779DX14eBgQHodDrodDpIJBJQFAWKovDUU08hKSkJr7zyCn7/+98HpF4rhJZYwB02mw2... | [
"certain",
"unlikely",
"probable",
"impossible"
] | null | 0 |
math | grade-4 | interpret-bar-graphs | true | true | A bagel wholesaler examined the bagel sales of each of the retail stores that it served. Which bar graph shows the same data? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC9CAYAAACJdQrFAABNF0lEQVR4nO3dd3xN9xvA8c/NTiSCmBEjgiLUqiChiGjMxAo/RW1iNKpKjaKKFFW0xKgRNWu0SobWHrGpPWrEjiBWIkPGze+P05y4EiRcucbzfr3uK86533POc+7Jled8z3O+R3O/G6kIIYR4I+VZKP9FCyHE28bI0AEIIYQQQgjxLpEEWwghhBBCCD2SBFsIIYQQQgg9kgRbCCGEEEIIPZIEWwghhBBCCD2SBFsIIYQQQgg9kgRbCCGEEEIIPZIEWwghhBBCCD2SBFs... | null | [
"iVBORw0KGgoAAAANSUhEUgAABR8AAAHDCAYAAACtcm2bAADR60lEQVR4nOzdd3hTdf/G8XfSNt3sQlmFsilgGbLKXsoUWQoPKrhFEfRxAf7QR4WqiIgK4mKqKIJFGUVBUKYgIpQtexYou7tpk/z+ODYQKNBC2xS4X9fFBTnne875nCQt7Z3vMAEOREREREQkVzgcDo5bYU8yJNggQz9ti4iIyG3E0wSBHlDVD0pZwITCRxERERGRXHM8zcGf8e6uQkRERMT9GhcCT3cXISIiIiJyK9mdbPxd2gLV/Y1P/kVERERuFwk2+CcJjll... | 1 |
science | grade-5 | compare-magnitudes-of-magnetic-forces | false | true | Think about the magnetic force between the magnets in each pair. Which of the following statements is true? The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different shapes. | "iVBORw0KGgoAAAANSUhEUgAAAnAAAACtCAYAAAAwLEJ7AAAvyUlEQVR4nO3deZgU1b0+8Leq955931kH2RVEUcSVgAQXXBOXmLhfNdHcmERjrrjF3avXJf6CSyTRGDUSRDH3ahJNUJR9FFAHhWGYgdn3paf3rvr9MQ4i6/RMVZ2q7vfzPDwq9lRV91S/9a1zTp0jqaqqgoiIiIgsQxZ9AEREREQUHxZwtMemTZsgSdK3/jidTkyYMAG33XYbfD5fXNu78MILMXfu3CEdy2effYYJEyYgMzNzSD9PRLQ3s+RbZWUlFi5ciLy8POTl5eG... | [
"The magnitude of the magnetic force is smaller in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is smaller in Pair 1."
] | null | 1 |
math | grade-1 | find-the-next-shape-in-a-growing-pattern | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADhCAYAAAC9ZMGZAAAYuElEQVR4nO3dXW8c133H8d/MPpASKVFWLNmO3QaJUMBpijgXqQM0LoKigY0W7UXQXjQ3ve0L6G2CIo3fRN9BgqKtH6pESmykim04eqhky6ZFS6IcSyIriRZJcZfcncfTC5oyJXGX3N15OHP2+wFyYYozc/7nzEx+e3h2xjPGGAEAAABwgl92AwAAAABkh4APAAAAOISADwAAADiEgA8AAAA4hIAPAAAAOISADwAAADiEgA8AAAA4hIAPAAAAOISADwAAADiEgA8AAAA... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAADhCAYAAAAJS2C/AAAd/UlEQVR4nO3dXY8c153f8V9VP84zSYmUZDoxLCYIvRtYuthokVgLI7BgY40NECO5WAPB3uYmd7m1EWzsN5F3ICFIVrZCW9yV1pElQdZIESXKFMd8kkRyxiSbnBlOd093PZ5ctIaPPT0z3fV4+vsBdCHOdNX5n6qarl/VqVOOMcYIAAAAgBUcx8m7CYXk5t0AAAAAAEgbwQcAAACA9Qg+AAAAAKxH8AEAAABgPYIPAAAAAOsRfAAAAABYj+ADAAAAwHoEHwAAAAD... | 1 |
math | grade-1 | two-dimensional-and-three-dimensional-shapes | true | false | Which shape is three-dimensional? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMwAAADMCAYAAAA/IkzyAAAS1klEQVR4nO3dW2xjd14H8K+vcZycxHZnksxM7jOJk7m3M22n7bZFpYJVRaEvBQHLPiBtkXjggWfQSgjekBCsQELiYaGIl/LAtg+oaKSVtlqWVlt1y5btZGfaZpqLHTt2Eie2j499fHiw/8fO3Sc5x//j+Pt5qca5+Jcq35zf+Z//xWMYhpHUgEcFYFsHKgaIqM7vARQfMBMGhoOAJ1kyjI9ysssicr9nBwD/w0LtHxeCQLyvliYiqtnWgYU8kNCAXxYAb65S+wD... | 0 |
math | grade-6 | identify-polyhedra | false | true | Is this figure a polyhedron? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAAQoElEQVR4nO2dfVRU5b7HPyAhgjCEUgHqjGm+4Eum0qo4xfhSpqsSTT3iTYZr17cjLYagY3hvzoB5tXO0wa7mUc9KMEtOcmJKfKuuDN20Ag3CUnF5nPFlIEVlAN8gdd8/xtlpIsz7DFOftVyL2e69n9+a7+zv83t+z9778RMEQeB3vAZ/TwfgbKqqqhg9ejRVVVWeDsU+BB+hvr5eGDVqlODn5ycAQlBQkKBWq4X6+npPh2YTPiFIamqq4O/vLwACIEgH9RP/lslkQlF... | [
"yes",
"no"
] | null | 0 |
math | grade-7 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADzCAYAAAC8J2HZAAAiyUlEQVR4nO3d+X9b1Z3/8feVLEuWZcl2HDuQNKxJU/Z9SdlCEkICBB4t7ZRhSgukdArl0em0379i2s7Mg0KnNJQCQ+n+gAwkkBDCvkPYCSFsaYA4cWxLsmTt9/tDio4UQxLH9+pqeT1/4R5btg6x5fPWued8jmXbti0AAAAAjvB53QEAAACgmRCwAQAAAAcRsAEAAAAHEbABAAAABxGwAQAAAAcRsAEAAAAHEbABAAAABxGwoVV/HdFf7hlRoeB1TwAAABqfxUEzre3... | [
"no",
"yes"
] | null | 0 |
math | pre-k | rectangles | true | false | Which shape is a rectangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAE9UlEQVR4nO3dz2scZRzH8c9ufoC1SXpSPHhUUQSRir304MGDoPg3aSn0UKGXHnvpKdgfVHIoQsEecihtIaBIpInWYMruJk2buJvdzW52dzyso9GmTWd35jvP88z7dQsh2Sftm5l08qEpRVEU1brSry2p0Zd6kYCxTZakmQnprWPS69NSqdaJonv1vI+FkJ2alSZXW8M33piW3nl1WCEwrkZfetCUql1ppSWV673hO4gMaZqZGDYlSbt9qdw/8A4gTXFT+5FUzvc... | 2 |
engineer | grade-7 | identify-the-experimental-question | false | true | Identify the question that Ariana's experiment can best answer. The passage below describes an experiment. Read the passage and then follow the instructions below. Ariana prepared ten buckets, each with one gallon of boiling water and three tablespoons of black fabric dye. Ariana soaked white linen fabric squares in fi... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAEICAYAAAA0p80lAAEAAElEQVR4nOz9WZIkSZami/0y6axm7h6RUZl10QBhI/1aTyBgH72XXsAlLKV6LU3UqLq3MjPCw23QUSY8sH7MP7OqR1YRodMCRC1BFmaugwjz4TP8Z+DD1X/5L/9l1v+6/tf1v67/df3/0fVf/+t//ZDntpL0v//v/29JUlVVqutaTdOoqqr4oev1mn2pqiq1bauu69S2raZpUl3XqqpKwzCo7/tw89tnxnHUPAe9zP3rutY8z5rnWeM4qmkajeOoy+WiaZrUtq0kaRg... | [
"Does fabric turn darker when soaked in a mixture of black dye and water for 15 minutes compared to 30 minutes?",
"Does linen fabric turn darker than cotton fabric when soaked in a mixture of black dye and water?"
] | null | 1 |
science | grade-2 | identify-materials-in-objects | false | true | Which material is this grocery bag made of? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAABBvklEQVR4nO29e7hsWVUf+puvVY+9z+nT7xdNN003tjwvgnhRMYoG44NPI5eGgAZBQIFoq1/ivRqM0mKIftGP8DDy0CQiid5AYsQXQqJoNF4RDNCAAgJN8+huON3nnL13Pdaac4z7x1yj1qratapWrapd+3Hq933dZ+/ateZ6zTHnePzGGMAGG2ywwQYbNIE67Au4WPCGH32O9j60mUIrS1O38+B9RttWcEl3SBR2f/wt7wqHfY0b7MdGQA4A//HOlyYc6Kre3oVbdi8... | [
"paper",
"wool"
] | null | 0 |
math | grade-3 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines perpendicular? | "iVBORw0KGgoAAAANSUhEUgAAAGIAAABiCAYAAACrpQYOAAAKNUlEQVR4nO2de1QU5xnGn1W5bLhIPFmNQdE0klXi7aCYUOOlirYKWq2yaqNADyq1SLwgKmKNUVERG6scNaIelXqFqEQlVkUMXqPECqQCUStCgNhdRVhgYXdl3/4BS5ewXIT9dmZkf38tc2bnfQ/PfvPOM98734iIiGCBczpwnYCFGixCtJAKZQnT41uEaIYKZQl2hc/Hk+xMpnFElhrROE+yM/C3kD9CXpCLEzkqprE6MT26gElLPoPtoQHQqqvMEs8ihBESYjbgq50... | [
"yes",
"no"
] | null | 0 |
math | grade-7 | classify-rational-numbers-using-a-diagram | false | true | Use the diagram to help you answer the question below. Which of the following is a whole number? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEuCAYAAAC08GWcAACIDElEQVR4nOzdd3yT9fbA8U920qZ7smkpU/ZWREBEFFBBwAFO7tWrVxw4rtfr3j+3XNd1ooK4QAFBBRws2XuPQhlldI+kSbN/fzxtoLKlzep5v159NU3b5KTjycl5zvd8VT6fz4cQ9UiezcuhCg/FlV4qXD5sbi92tw+by4fN7VMuV33sv1x9vct7gut8WFzKv1G0VoVRq8KoUWHUgsl/+ej7P19nqrouzqAm3qAiwaAmwagm3qAmwaC8j9WrgvxTE0IIIcSZUkmCLSJ... | [
"7 2/7",
"–78",
"– 16 9/10",
"51"
] | null | 3 |
math | grade-3 | reading-schedules | false | true | Look at the following schedule: When does the ferry arrive at Starfish City? | "iVBORw0KGgoAAAANSUhEUgAAAQsAAAEtCAYAAAAfoEV5AAB5sUlEQVR4nO2dd1QUSdeHf0MSyUkQEBBERMwiiAkMqCCoYMSAijnnVdxV17QGDJjWsIqvYVVMgDkhgjmAYhZEVNQ1oAIKSJz7/cFOfzQzQBMUces5h7M71dXd1TUzd6qq2/uIQj19CAwGg1EMCgDQduSQCm4Gg8H4kQn/azvkKroRDAajcsCCBYPBEAQLFgwGQxAsWDAYDEGwYMFgMATBggWDwRAECxYMQaw7fAiTNqzB3vOh3+wcKw7uxaQNa3D02uUS79tp1lQou7f... | [
"4:05 P.M.",
"11:30 A.M.",
"7:35 A.M.",
"4:50 P.M."
] | null | 2 |
math | kindergarten | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 6 − 1 = 5? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUQAAABKCAYAAADDly0CAAAQfUlEQVR4nO3daWwbZ37H8e/M8BB1S7YsS7Jjy7JlJz42Ths7jmtvjnqDJPVuthuki6ZdBEFRdN8uCrTdolsUBbpvtn2xfVUU6Ka7TdEUCZCm2KDIbhDnWsdK4iSOb/m2ZB3WRVIkh3M9fUGKEilRIsWRZCv/zxtnKHH4/DTBjw9nhjOaUkoNWnApCXEXHIUQQnwlBDSoM2BbNbSGQBtMK9UTW+lhCSHEytpfD4HeZGahLQTbazJtKYQQXwVxFy4kYMCCi0nQY07... | 0 |
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