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-2 | domain-and-range-of-radical-functions | false | true | What is the domain of this function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABr3ElEQVR4nO3de3yU9Z33//dkZnJOSEgggUgCiIBBgiCgnBQL9UTVQmuxXat27ba2te1277v766O77X1vb9ftHuxurXZdW+uh2922btVWNCAKAgYlEiGQcDBGCATI+TSTOc9cvz/GIFGQBK4vk4HX8/G4HjCTXO98cl0z13zmm+9cl8OyLEsAAAAAbJGS6AIAAACA8wkNNgAAAGAjGmwAAADARjTYAAYpKSnR1q1bj98+cOCAxowZo6ampgRWBQBA8qDBBjBIRUWFamt... | [
"$\\{x \\mid x \\leq 4\\}$",
"$\\{x \\mid x \\leq 2\\}$",
"$\\{x \\mid x \\geq 4\\}$",
"$\\{x \\mid x \\geq 2\\}$"
] | null | 0 |
science | grade-2 | identify-earth-s-land-features | true | false | A valley is a low area of land between mountains or hills. A valley's sides may be gently sloped, like a U. Or they may be steep like a V. Sometimes, a valley has a river running through it. Select the valley. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOEAAAC0CAYAAABi8Es+AAEAAElEQVR4nGT9WbMtS5Lfh/08IjJzDXve+wx3rqG7ugskGwJAgCJloow06kVmMtOrvo4+C5/1qieZSANBdgskRAxV3dU13brjGfe4psyMCNeDR2Su3TxA1z1n77VyiPDx73/3kP/Hf/vXuk8gKMEJUYRBISN4ERpVnBPEQcyOBCCggEdoEZLYz7wD54QANAgqICJEAFFEhYxdW9Uu4nBk+zrlY2j9lyggiAjiFKcg0wcFJ/a9rAooiMMhKIoKOBFEBRH7njhwlJ+... | 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 = 49? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAhlElEQVR4nO3dfZCW5X0v8C/vC0RdDUFcKC/1bcFR4CyOaBJhSSQmwgG1rW8kqGgl1kywTTrMxDbbNqc0jVVxTEiCqVjP9JhagxZzjDhGkp4JJOOerEEFNJGF8KZiAYPLoit7/vCwE4RF0Xv3WZ79fP7ivq/H5/e7nhl9vl5c9/X0aG1tbQ0AAFCInqVuAAAAyomADQAABRKwAQCgQAI2AAAUSMAGAIACCdgAAFAgARsAAArUpQJ2c3NzmpubS90GAAC8b10qYDc0NKS... | [
"86",
"2"
] | null | 0 |
math | pre-k | spheres | true | false | Which shape is a sphere? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAOUUlEQVR4nO2d228bZRqHf+OZ8Sk+JPYkaUuhwEKhFO0FAtEFBNJysXuzd3uz/8De7d+22gUJVVpAgLacqlKBQNs2ByfN+eDETu3YHk9mL8afz4exPY49M7/npoljJdP4yed33u99308yTdPcqwArReDMAKomCJk5FAmIy8CrUWA5CEh7ZdP8IT/tyyLEPu8mAOVJ0frkahB4bc6ympBZ48wAHhWA3QrwuAgE8lXrC5SWzDJx2XIUAJ4ZQMBo+gIhs4xwVDeBwHQ... | 2 |
math | algebra-1 | model-and-solve-linear-equations-using-algebra-tiles | true | false | Which set of algebra tiles represents the equation
–
3x+9=21? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAWUAAAB6CAYAAABnckJBAAAKmklEQVR4nO3db2gb5wHH8Z9O/pNYiZx2tmZntcucbMPO1i3JgpdC3yy0azcaWB1KNvZqZOTVGBS3r/p6cx0oga4YBoOSVx2Nk61lwwRG2zmxUUPntYSENnPSOB6ObCc2khzHsu9uL4SdePUSn6I7P3f6fiDYJ+v0O8Pz/KTIp+diruu6NwrSv29LOVtacgUACEhVTNoal75RJ321RordWHDdj7IbfVgAgM6kVHX5dnGjuUb6VqLY2ACAYORs6bM5aaIgfX5bsrJ... | 2 |
math | kindergarten | fewer-more-and-same | false | true | Are there fewer beach chairs than beach towels? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACgCAYAAAA2PRuAAAAsJklEQVR4nO3dd5Rc933f/fed3md2ti8Wi95BAgRBgl0SiyhTNGlZcpGlh7byyEpsK5JrosQniS3FsZ3Ez2MrsVyPLcWyRYtqliWziKIKOwkCJEhgd4Htve/0PvPLHwMuCKEDQ2CG/LzO4eHuYmbufV+evfjyzr1zLWOMQUREREREasJ2pVdAREREROStRAO2iIiIiEgNacAWEREREakhDdgiIiIiIjWkAVtEREREpIY0YIuIiIiI1JAGbBERERGRGtKALSIiIiJSQxq... | [
"yes",
"no"
] | null | 1 |
math | grade-3 | parallel-sides-in-quadrilaterals | false | true | How many pairs of opposite sides are parallel? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABtCAYAAACbSxbqAAAMyElEQVR4nO3dW3CU9RnH8d+7b7K7gSikhEBIBqQaRKlBq0A5hEjwUJVUOx6YqY54mHYy9bIXdDrtjTPNFa32wh4uOrVqdYrTcaad9oIyQZGWJBjkJKMIglZBEOQQCHt+e5Es77svC+Gwm933v9/PXZxEXpjN7LPvPvv/Wo7jOAIAAABQEKFSXwAAAABgEgZsAAAAoIAYsAEAAIACYsAGAAAACogBGwAAACggBmwAAACggBiwAQAAgAKqupRvenhbUvuGHNVXF/tygNJ... | [
"1 pair",
"2 pairs",
"no pairs"
] | null | 1 |
science | grade-4 | compare-properties-of-objects | false | true | Which property do these three objects have in common? Select the best answer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADQCAYAAAByQhWRAACmuklEQVR4nOz9eZQc133niX7ujSX3rSpr31CFnQC4UxRFUqJEy7IktyTbku0WZUtye6TpsV/b0+1e35kz5/V5c/r1TL9zpmfGz/a43bZb8tZteRFFSpQokSJFEgRJEPsOFFCFqkLtS+6x3fdHZGZlVWUBBRAkCmB8cAIZlRmRGZEZGfm93/je3xVKKQVQLpeZmJhgaWkJx3EICLjV6LpOMpmkq6uLcDj8rr5WcPwHbDaC4z/g/cx7efwHBNyJCKWUKpVKnD9/noGBAcL... | [
"shiny",
"fuzzy",
"scratchy"
] | null | 0 |
math | kindergarten | one-more-and-one-less-with-pictures-up-to-10 | true | true | Count the strawberries in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAABLUElEQVR4nO3dZ3hd13ng+/8up/eKdtABEmAnRVFdtlXca+TEJc12MslMnHFJ4kzmpjrJzM3EcYkzc++T6mQ8k7hk3LtsWVYXJbGikOjAAXCA03s/e90PBwRJy3Z8E5EExfX7oOfRxj57r70OP7x7nXe9ryKEEEiSJEmSJEmS9IJQr/UAJEmSJEmSJOnFRAbYkiRJkiRJkvQCkgG2JEmSJEmSJL2AZIAtSZIkSZIkSS8gGWBLkiRJkiRJ0gtIBtiSJEmSJEmS9AKSAbY... | null | [
"iVBORw0KGgoAAAANSUhEUgAABIYAAAB+CAYAAABRYRpnAACY30lEQVR4nOz9d5xc133Yf3/OnTu9192dna3YRW8kQbBTEqliWVaLutwi2Y6fWI67Ez8vO8WOkziObdn+JU9sJ3KJXCTbsrpEUiQtUawgibq7WGB7nd3pvd655/ljFgtAlCzqFwJYkOf9hyjMzi1zBt/FOd97zvcIQKIoiqIoiqIoyitCSslGC2ZrUO6AoXrbiqIoyg6iC/BaYNwFPTYQqMSQoiiKoiiKorxiNpqSE6UbfReKoiiK8t3d4QP9Rt+EoiiKoiiKory... | 1 |
math | grade-8 | apply-multiplication-and-division-rules | false | true | The number line shows two unknown numbers, x and y. Is xy positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAI7klEQVR4nO3df0yU9x0H8PcD3N3jHfQ4qShuIK31RxiWWk8EQwi16+qGZuDMFreILi5Wncm2xsQ/muxHQ0zs+s82ZZL5T01gmllsozZuXaXIMn7Ij7FdRUEjRaCIgt7gjrt7Dp79cdxNFIQWeL73HO/Xf89zzx/v5C7H+758nu8jqaqqgohIR8rLyyFJEnbs2CE6CmmE7zkR6UmM6ABERF/WnTt3REcgjfE9JyI9mXbBVhQFjY2NqKurQ2JiIlcRiMJEX6+ChjoX7vY... | [
"negative",
"positive"
] | null | 1 |
math | pre-k | count-on-ten-frames-up-to-10 | false | true | How many stars are on the frame? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACQCAYAAAAyRxwtAAALwElEQVR4nO3dPWxb1xkG4I+irmxJi5wY0WDLgBa5AVLAhhbBRgwEgoF6SNE1HuPVXb3Wc9fO6dqO3YNmKNrCiywCXRIDbYFKApLAST1UpEiGZIeE/tMfKZ7LS/E+zySR1L3nnfjinE9k5Yuv270AID5ani16CQBMgZmiFwAAANNEwQYAgIQUbAAASOjQwOH6O9Ui1lGYre87b/wuv/xlIn/n9BcBwJDsYAMAQEIKNgAAJKRgAwBAQgo2AAAkpGADAEBCCjYAACSkYAM... | [
"2",
"6",
"4",
"1"
] | null | 1 |
math | grade-5 | scalene-isosceles-and-equilateral-triangles | false | true | Is this triangle equilateral? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADOCAYAAAAEw3WqAAAi1ElEQVR4nO3daXQUBaL28aezEkgCDWQhAiYgAcGwLwqyKKjIjsiijjpzGcf9vTIO7veqIxIgiCKggIAbKnAVcQUUZBFRNCoSVAyEBIGWGKWRtMQOTdf7ATuGMYEs3V3d6f/vnBxHSFU9ffzyTJ2nqyyGYRgCAAAA4BVhZgcAAAAA6pKgL9jbtm2TxWLRvHnzzI4CAAAABH/BfuONNyRJDzzwgIqLi01OAwAAgFAX9AV7/fr1kqQjR45o4cKFJqcBAABAqLME85ccHQ6... | [
"no",
"yes"
] | null | 0 |
math | grade-2 | skip-counting-stories | false | true | Each dish has 5 strawberries. How many strawberries are in 3 dishes? | "iVBORw0KGgoAAAANSUhEUgAAAWQAAACLCAYAAABWfuPDAAAcuklEQVR4nO3deVhUZfvA8S8gAoIg4AKKKDso6OuCoiLgmmbazyU19TV7zciVtNQs08w9cwctt8zCyiWy3C0XxBVxSXEDEQEFF2RRWRKY3x+jIwQq+4xwf66L6xrOOXPOzXif22ee55zzaCVlXlAghIabtqAfAF9O3KLmSIQoO9rqDkAIIYRSuRTklMdaND1ggdfh2qQ81iqPQwpRJiSXRVkqcUHecVuf+RHVX5icIff1iEnT4XyqLqPPmZX0kEKUCclloW4lKshTwk0... | [
"30",
"15",
"20",
"25"
] | null | 1 |
math | grade-3 | identify-faces-of-three-dimensional-shapes | true | false | Which shape has a square as a face? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAZC0lEQVR4nO3de5AdVZ0H8O85fR/zfubBJMEwhiQKSARJQlQE0QUlZo0PainKBV0NZZW7f1jWlpaLbpVilVatJVa5W7sEdwVdixUVNAbBRxRQyMtgENAkxJBkJjPJvN9z7+0+Z//oO/c1dzK3z3T36Xvu7/PPzNx77unTM3O6T//Or08zKaXsTwOvTgMTDmBLEEICEmNAswWsbwBWJgDWn5Ly4LjuZhFSe7a2ALET0+4PXQlgY6PbOwkhwZhwgGNTQF8aOD4N8HH... | 0 |
science | grade-8 | compare-thermal-energy-transfers | false | true | Two identical refrigerators in a restaurant kitchen lost power. The door of one fridge was slightly open, and the door of the other fridge was closed. This table shows how the temperature of each refrigerator changed over 10minutes. During this time, thermal energy was transferred from ____ to ____. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAABfCAYAAACdpLOcAAAq4ElEQVR4nO3deVhTV/4/8PdNQgggWBaxtajEhUUIERUBq4JiO0qZcddx6WYXpWiVVq0W9WkRB53SUcdxaQd1prZfddpan5+WKq0LoqhlUalIqSzVKk4rihLZst3fHxmiISG5IQmB+Hk9j39477nnfO655wOHm3NvmMZjQhaEEGIlomcuo+lMqL3DIKRLozwihBvR2GZ7h9Ap8ewdACGEEEIIIcR6aIJPCCGEEEKIA6EJPiGEEEIIIQ6EJviEEEIIIYQ4EJrgE0IIIYQ... | [
"each refrigerator . . . the surroundings",
"the surroundings . . . each refrigerator"
] | null | 1 |
math | grade-8 | apply-multiplication-and-division-rules | false | true | The number line shows an unknown number, y. Is – 3y positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGu0lEQVR4nO3dXWhU+R3G8eckzmTMjJuN02Qba1RWSZYQkGAcE8mFLX3ZElwaSV8sbBRsbbVeLGWLdytdRHDbi5YqKPWmLgah2xFqI9v2okQLm5kkSsqs6ViLMWY3u2psxXnNJJlexJk1mheXTuY/L9/P1Tkn5+KBM4SHP7/zP1YymUwKAPJId3e3LMvS7t27TUdBlvDMAeSTFaYDAMDndefOHdMRkGU8cwD55LkLdiKR0ODgoHw+n6qrq1lFAIACMBH7WD23T2ssFNR... | [
"negative",
"positive"
] | null | 1 |
math | grade-7 | transversals-of-parallel-lines-name-angle-pairs | false | true | \line{KM} and \line{NP} are parallel lines. Which angles are alternate exterior angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD2CAYAAADs6vBqAAAkNElEQVR4nO3de3CUd73H8c8mGwIkzaUdImIlm4ZrQwCTcMI9wVJMprVczAAdtUAlIx3QojUoHLV4Ooc6pWIUbTqCkDptLRgldYoBWm3CpUDLpiSBImnDbikeMWizcIASSHbPH5g9TdmEy16e3X3erxlmZH/L83x/378+fvt7nrV4PB6PTMjlckmSUlJSDK0jUtE/AAAA32KMLsAolZWVqqysNLqMiEX/AAAAfLOYdYJts9lksVjkcDiMLiUi0T8AAADfTDnBrq6u1vv... | [
"\\angle{MLJ} and \\angle{NOQ}",
"\\angle{MLJ} and \\angle{POL}",
"\\angle{MLJ} and \\angle{KLJ}",
"\\angle{MLJ} and \\angle{MLO}"
] | null | 0 |
math | pre-k | addition-sentences-up-to-10-which-model-matches | true | false | Which shows 2+7=9? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdoAAABKCAYAAAAc9ZVYAAANwUlEQVR4nO3dTYwcZ53H8d/z1Fu/z9jjJGObOFGcSXAMu8mijRNCbii8I0URWYRQtAduaIUiBAeO7GEl9rBCuwfEjT2wvAghCIQLJyBKiEBCCiHyC0b4ZTx+GWdm+rWqq55nD9VtT4/b3VXd/XTXVH4fKfJLd1f1N6rxv6uruktorfVGAJxrAfUICDWIiIhoQrYAqhawVgLucwGx4Wv95s6inxYREVH+nKoB9tlW/IfDLvBoOZ7CRERENJl6BJxuAlcC4EwLkDt... | 0 |
science | grade-2 | classify-rocks-and-minerals-by-color-and-shape | true | false | Select the black rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAADNGklEQVR4nOz9d5Rl6Xneh/523ieHOpVzh6pOk2eAGWQQSUwiZUFXlEhTd1mB19f0skXHpWhLtiWL8rWsRflaV4EUZTGBpEBCJCACHsTBxJ7u6TDdXV05h5Pjzvv+8Z39dQ0IApSHA46I+daaVTXVVeecvff3fm96nudVoiiKeWe9s95Z33Spf9gf4J31zno7r3cM5J31zvoW6x0DeWe9s77FesdA3lnvrG+x3jGQd9Y761usdwzknfXO+hbrHQN5Z72zvsXS3+o... | 0 |
math | grade-4 | nets-of-three-dimensional-figures | true | true | Which figure will this net make? | "iVBORw0KGgoAAAANSUhEUgAAAM0AAADNCAYAAAAbvPRpAAAEpElEQVR4nO3dsU4bSQDH4dlT6pNOtL6KPIQl0rsjjZ8CmogCngGKiIY8hRvo3BPJD0GqcxuddC+w15w5jF3cH3tu48n3dazEalbeH7Nrxuuu7/u+AP/ZL0MPAA7Nu6EHUEPXdUMPgca8vCBrbqYRDDW8PK+anGlKKeXzp+9DD+Gnd3F7VEo5/NdidRwrzc00UJtoICQaCDV7T8PwJuPLoYdQhWioZjK+GnoIVbg8g5BoICQaCIkGQqKhmqflY/m2/Dr0MPbOu2dU82X... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAADNCAYAAAA13ILSAAAY6UlEQVR4nO3de1hU5b4H8O8AooIyCOZli0LKRUgFNN1aFJTu3GeXjhqUmQJ5V1IRQ8tLjlsozQukibeNjLfIDglq+WjnGGBappEY3gUFwlBUFIibzDDnD2JOKq0EZmbNLL6f5+mZx/XAu36rNfPlfdes910yrVarBRE9NplMJnYJZEQWYhdARGTKrMQuwBD4l570jQOulktyPUkGJBkC31ctlyR7kgCwNvyO2CW0eBGxjgDM/1zUHwe1TJLrSRIR6RNDkohIAEO... | 0 |
math | grade-1 | which-picture-graph-is-correct | true | true | Steve went to the store. He bought some fruit. Which picture graph shows the right number of each fruit? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAABeWElEQVR4nO3deXhc5X03/O/ZZh+tlhfJlmUk29jG4BizOWwxSUrA0DxXE5zlJWQpJIE0efqmV2lzhTQNJE2etGma8CRpSdvQ0gAm4SUY05AAwayGGgzY8iLZlm3JsixpNJr17Oe8f4wlWdJIM5oZ7d/PdfmKNXPOfe6RZPKde37ndwuu67ogIiIiIqKSEKd7AkREREREcwkDNhERERFRCTFgExERERGVEAM2EREREVEJMWATEREREZUQAzYRERERUQkxYBMRERERlRA... | null | [
"iVBORw0KGgoAAAANSUhEUgAABVQAAAEOCAYAAABmXpymAACOVUlEQVR4nOzdeXxU5b0/8M/ZZp/sIRsEYkJAFkXEjbqVWjfQ2nur1ttrtbV6q7Z6u9r6q21vsdbW1qq1aou2al1RWytSRasVUQSLokLYAgRICNmX2c+cOef8/hiSQ8g2mZnsn/frlZfknOc85znfEJz5zvN8H8E0TRNERERERJQWgiCM9hCIiIiIaBiJoz0AIiIiIiIiIiIiovGCCVUiIiIiIiIiIiKiBDGhSkRERERERERERJQgJlSJiIiIiIiIiIiIEsSEKhE... | 1 |
math | grade-7 | identify-complementary-supplementary-vertical-and-adjacent-angles | false | true | Which angle is complementary to \angle{4}? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADdCAYAAACBgQWfAAAhq0lEQVR4nO3dfWyV9f3/8Ve5WfVI4YykK9tXSh0JxoNAAUv5hiU93U8jRJaWuKqdiz3H4IRy01YGZSpQEEVwW9spWKKOq2pmZ3GcLjKrw/WgsMC62IN1Z1qs1EqMpEs8cKClYOnvD9Z+C1LozTnnOjfPR0LE9lznvE/0j1c/fZ33Fdfd3d0twCQ+n09Wq9XsMQAAAAJmhNkDIHaVlJSorKzM7DEAAAACapTZAyD2+Hw+/eQnP9GBAwdUV1dn9jgAAAABRcBGSHk8Hi1... | [
"\\angle{1}",
"\\angle{2}",
"\\angle{3}",
"\\angle{5}"
] | null | 2 |
math | grade-5 | compare-fractions-and-mixed-numbers | false | true | Which number is greater than the one shown? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADNCAYAAACCVwcEAAAuP0lEQVR4nO3daWxdaX7f+e+599x9JS8p7hTJkkpVWkpVJam7k94Qt9MNG3GCBmIDHsyLThwENgLEHgN+k7eZwRg2DAeYQSMx2jESD9JGphsT2zNBV3e6O+52p1yLqkq7RC2kKErievd9O/PiUmyztZCS7vLw8vcBiEId3nvOn/xBR3899znPYzmO4yAiIiIiIm1h97qA3VTSFZLXk+SWc9TyNWrFGrXCzq9GuYEdsLe/PGEPvqiPwFAAX9yHf9BP8FCQyFSk1z9OX1J... | [
"2+1/2",
"5+1/2",
"3+1/2",
"6+1/2"
] | null | 3 |
math | grade-1 | name-the-two-dimensional-shape | false | true | What shape is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD1CAYAAABqfoLEAAAV6ElEQVR4nO3d6ZOc1X024F+vM90z2tAuGUm2QEJCGAQCuTBeINgmdqUqTpy8eePk3Zx6kzj+kL/FRSVxtspWjpO4yk6V43hJWRCwA0YYA0IKAoGkMNpGgpE0M93Taz6MiGNsWbN099NP93VVUQz6IJ0Zceq5+zz3OSfTbrfbAQAAdEQ26QEAAMAgEbABAKCDBGwAAOggARsAADpIwAYAgA4SsAEAoIMEbAAA6CABGwAAOkjABgCADsonPQAW742pZpy70orJq82o1No... | [
"rectangle",
"circle",
"square"
] | null | 1 |
math | grade-7 | mean-median-mode-and-range-find-the-missing-number | false | true | Logan has the following data: If the mean is 6, which number could r be? | "iVBORw0KGgoAAAANSUhEUgAAAQMAAAAkCAYAAACND1/xAAAHHUlEQVR4nO3cfVAU9x3H8fft3oGACuIhPgKiMQSJJq2iPIjQ4CQTaqo2HZvMtEkhqW1iYnBqH9LJTJO2tv80GUknjm0mk5lqbeJDjKFtlKQKQTFGM2hEzoD4ECJPF4RDuOOetn9AGE+dhBl2bzF+X//d72Z+n539fe+7e3t7a9E0TQPwBYP0+gMENQ0NIcQ3mQVQLBZirCo2RRkY0zRN6/MHcAcC5m6dEMIUUapKtFVF8QU1aQRC3MLcgQC+oIbiDvjN3hYhhMncAT+... | [
"2",
"18"
] | null | 0 |
science | grade-3 | compare-temperatures-on-thermometers | true | false | Select the thermometer that shows the lower temperature. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAFwAAAFICAYAAADd35lhAAAw7klEQVR4nO19e3xV1Zn2s0/uITkngRByIyAoSCThA62tiLa283kl4ChYNTozX+cbrC0KVZnaar20xQsdp1odO2qrHRVstVa5ibU3WykqqCiXWEAxgVxJgJyTG8m57PnjnL2z9z7rvvc5Qer7+4XFWXvttZ717me9633XWvscTdd1vWMY+GgA6I0CER2fiUeSqQGFGcAp+cCE7Hie1jGk61tDowvs70E+7wdKs4HMfQPxjPJsYPqY+BP5TLyR3iiwpx9oHwb2DsQ... | 1 |
math | grade-3 | match-fractions-to-models-halves-thirds-and-fourths | true | false | Look at the colored part of each shape. Which shape shows one-half? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAACgklEQVR4nO3csU4UURxG8e/uAgWCYqOxIyZi7OioTHwDOx+AgiegtrD1DUx8ATvfwMSOxhqw0ErslIVNQDbXYtzEUu4gq3vOr5tMbuYmZ26m+k+ptdaj8+TjOBlNkosazZGFkqwOkwfLyd2lpByd1bp3POtt6Tps3UwWDsfdxb2l5OGN7m3Q/BhNkv3T5Mt5cjBOBscX3Q1jz6fVYdc2SU4myWDy2w3Np2nbHzUZzHYrum4GhzE4jMFhDA5jcBiDwxgcZqFl0eu... | 1 |
math | pre-k | one-more-with-pictures-up-to-5 | true | true | Count the apples in this group. Which group has one more than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAA20ElEQVR4nO3deXxdV33v/c/eZ57P0TzLkmzJkuU5sbEdJ7SZGEooZIJShtJCS2+By9BeSunTmfLAhb7K7aV9oL0M7dMWnqYtU9uEQgnEcQbHo2zLsiVZ83R05nnY6/njWIody47jyNaR/Hvz8gvreO991jnbX+9f1lp7bU0ppRBCCCGEEEIsC32lGyCEEEIIIcRaIgW2EEIIIYQQy0gKbCGEEEIIIZaRFNhCCCGEEEIsIymwhRBCCCGEWEZSYAshhBBCCLGMpMAWQgg... | null | [
"iVBORw0KGgoAAAANSUhEUgAABCEAAAB+CAYAAAAa5QvPAABqSklEQVR4nO3dd3xkV3nw8d+90/uMRr23lVa70lZ71/baprhTTADbkJAAIUDgDSWUEFLeJG8qIYEUEpJACpBCaCmUENtAYuO29vaqlVa9S6Ppvdz7/jGSVtri7dJo9/ny4SPv6N47Z+7VM/ec55x7jgLoCCGEEEIIIa4JXdeZzsLpJMQKkJfathDiJmVUwGWADXaoMhdfU5AkhBBCCCGEENfMdEbnxehal0IIIUrLbjdUmsG41gURQgghhBDiRtKfLP6sMUOno9g... | 1 |
math | algebra-2 | match-exponential-functions-and-graphs | true | false | Which graph matches this equation?
\[ y=-\left(\frac{1}{3}\right)^{x}-6 \] | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAVUAAAE1CAYAAABX+HN0AAAdIUlEQVR4nO3de3BU9f3/8dduyIVcSKy51Qvh0pZULgKpkLT+hNihgF+YKVgF/dIWUBwZcfwDfv2C87WxMxWxY5n5WsZLvTC0/kRFGX8Gi6ASq44JSGSx4i8BIfnyBZNsRDZAYhKyOb8/4p7shgC5nM05J3k+/mH37Dnn8ya7+9pz+3yOxzAMo7ZV+rJJOhuU2gwBAHpomEdKiZF+mChlxUme2hbD2HfG7rIAwP2mj5CGHWnqePL9OGlcUkfiAgB65mxQqmyUalq... | 1 |
math | pre-k | represent-numbers-with-shapes-up-to-3 | true | false | Which group has 1 star? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAFb0lEQVR4nO3cPWxTVxyG8dc3cQw3n0BwEqGYSFVbeS4SUzMzlzkzrGUOK9mQurVz5+6dGVEzU0qXVELQJv0gTm4w/rgdLFcmtYPvzbGc1zy/KZYV+8h5dPKX77ELaZqmr99JvyZSrSU1UwEXznRBmp+SPo2llRmp8Lqepk8Px70sYHi3F6TpF0nnxtqM9Plsp2rgoqm1pOfH0qt30i+JFB02O3cQLS6y+alOo5J01JKiVs8dwEXWbbSRStF4lwLkQ7iwRLiwRLi... | 0 |
math | grade-3 | identify-equivalent-fractions-on-number-lines | false | true | Is 1/4 equivalent to 2/8 ? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABwCAYAAAAkAwevAAAYAklEQVR4nO3df1DUdf4H8OfyU36zLKuwaKAmCsboCSFr+eNOKz0HSjOlVPJrzKVDNVY0d55/pM2cwdw1OOjcad54FNh8s19fu+PyO1oBE18QUcsfgcdtYcbyY/FW5Mcqu7DfPxCCQnbThff7wz4fM0ztSjPPefV298l7358PKrvdbsc4UVhYCKPRiBdeeAF+fn6i45CC1dTU4OOPP8aiRYug1+tFxyGFy8/Ph0qlwvPPPy86CilceXk5vvjiCzz66KOYNWuW6DikYF1... | [
"yes",
"no"
] | null | 0 |
math | grade-1 | addition-sentences-using-number-lines-sums-up-to-20 | false | true | Which addition sentence does this model show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAVDElEQVR4nO3de1BU5cMH8O9yc0OuKoiUgtAIYoS3RNRS7KdlN7XEtHHCykt2cdLG8dZMmpSaafpm42g2r68pjrcAu/DqOyqLE3IRQVMHSwkUlzURQZb7yr5/HHcVFpHFw55zdr+fmcZld2f5PrFyvj77nOeojEajEUREREREJAonqQMQEREREdkTFmwioha+Pw+otwOv/K/USYiISIlcpA5ARGRLuhqguxpwbWV6oaIBeC8N+L9rgJuzrZMREZG94Aw2ETkMQxPQaxe... | [
"9+5=14",
"9+1=10",
"7+1=8",
"8+5=13"
] | null | 1 |
math | grade-2 | which-shape-illustrates-the-fraction | true | false |
Look at the colored part of each shape. Which shape shows two-thirds? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAAX5klEQVR4nO2deXxU5bnHv2cmmcySZbLvCUkgCQgBBIIiIOACVNBW0VoXvLX3ttdbl9ba3qu9/aDdvG2lXuXWXq2WttZ6BbUqVVxAZA2yhAhJIIQEQkImC0lmzWQmmZz7x5mJEQJkzpxZkHw/Hz988OQ87xt+533PeZ/3eZ5XEEVRbHPDsV6weWBAZIwvEVECxKlhgh7SNSC0uURxjzXc3RojFMyOh6j6XukvmRooMUhPwxhfHmweqHOAyQ1He0FlHZAujIn95SR... | 3 |
math | grade-1 | even-or-odd | false | true | Is the number of hearts even or odd? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAClCAYAAABm8IozAAANYUlEQVR4nO3dMWyc9cHH8Z+rLgTEuQKJLAlngcgUbEZIVGKlzQJR3AytQC2ylwqTAUf4FYglj1WJFhEkM/AGdeEClEoMmCqwpI0wUkJH7GQKCoqJl1Qiso1CGO8dgq9vWgFP3L/vbPr5SB4S+Xn83G+5r+y75/ra7XY7AABAET/q9QUAAMAPicAGAICCBDYAABQksAEAoCCBDQAABQlsAAAoSGADAEBBAhsAAAoS2AAAUJDABgCAggQ2AAAUJLABAKAggQ0AAAUJbAA... | [
"odd",
"even"
] | null | 0 |
math | grade-3 | angles-greater-than-less-than-or-equal-to-a-right-angle | false | true | Is this angle greater than, equal to, or less than a right angle? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABRCAYAAADo89E8AAAM7UlEQVR4nO3de1SU94HG8WfEO4pEG41HAjG1xaMr4gVWjaxQzMZb0FalTVq5NF5i8K4VBGJAI15iEGvsibGNmFNtoiQhmnSz66XE5Jit0WTEI4JL4qAYF3TMAAKKwuwfaZOT9QY6M+8MfD9/Kc55f8/89/icl/c12e12uwAAAAA4RCujAwAAAADNCQUbAAAAcCC3Lti55lwNWjlIplkm9U7urVxzrtGRAAAAgDsyues92OZzZg16cdBNPz+TcUaPdHvE9YEAAACARnD... | [
"less than a right angle",
"equal to a right angle",
"greater than a right angle"
] | null | 0 |
science | grade-2 | identify-solids-and-liquids | true | false | Select the liquid. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AAAV80lEQVR4nO2daaxdVb3Af2vt6Qx36j2daCkytLWP+6RSBMG0KFHxQ5+BWIMfRBODkSjRQjTG5EVrNMbgByPE2A/PiYSHJDiQV4OCLxGExkdaX0uBB6W0lEEot/OdzrT3/r8P65w7d6C0vWevvX7J6Tl7n332Weuu3/mvtf57qNp2XOS9Zej2cDjOK8MJ7B6Ftxowz4e1fWa9dkI65opuD95bNq9Hkon12gnpmEva/jVlYp2em6I4HCfGSenoOJyUjo7DSenoOJy... | 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. Wood burned in a fire, cooking vegetables. An outdoor stove burned propane, a fuel made from natu... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAADOCAYAAAB4pWlzAAEAAElEQVR4nOz9ebwlV1nvj7/XUFV7OPuc7nNOzwkkBAgkQpAEEIFLjIAYhasCARSceDmAIojAfTHI14Gr1+He+EIxgl5CIsgPZVBurmhQRAEvIQkEAiFhSMicdKc73X2GvXdVrbV+f6y1atfeZ5/Tp6ckYn3CZk81rFpVffanPs/zfB5x9SHnzuxCT9GgQYMGDRo0aNCgwUnBkoGbVkAcLp1riGeDBg0aNGjQoEGDk40lA8I55x7sgTRo0KBBgwYNGjT4zwFdf7N... | 2 |
math | pre-k | represent-numbers-up-to-10 | true | false | Which group has 9 stars? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAARPklEQVR4nO3dP3ATSd7G8cfsH7nulQ8C6iRIdMm9CpUYk0HhAEfYGQSmHLoggTfBGQlkJLxkl7ARkYlsEkjsqss4nJgIcW/ixIiCwF5xW2JvKb1Be8qyGMszo56ebun7qXIZF1Jrlt/so19b09MT3W632/pd+r/fpPY36Y+uAMCKHyekqR+kv/1JqvwsTbS+drv//LXowwIw6i7+WfrxX7+ZH879LNX/y6QRANjQ/iY1/y19+F16/5t06tc/zF8QNgBsm/rBZIs... | 0 |
math | grade-2 | which-tally-chart-is-correct | true | true | Bob was at a farm. He saw some things to eat. Which tally chart shows the right number of each thing? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADhCAYAAADyOcJJAAB5VUlEQVR4nOzdd3xcd53v/9dpc84USaPqyLYsd8d27MROI5WEBDaFFiABboClLOxvF1i4sA247O6FZS/cC6GzSw8lbAiwSTYhCaQQUolTnMRx75asYrXR1NPP74+xRx5L7rIs2Z/n47GPh+ecM0ff71hh3/P153y+ShRFEUIIIYQQQohxoZ7sAQghhBBCCHEqkYAthBBCCCHEOJKALYQQQgghxDiSgC2EEEIIIcQ4koAthBBCCCHEOJKALYQQQgghxDiSgC2EEEIIIcQ... | null | [
"iVBORw0KGgoAAAANSUhEUgAABEsAAADrCAYAAACRixiGAADPJklEQVR4nOzdd5zcVb3/8de3TJ/Zna3JbrLpvQAJNUAoUgQEFYWAouBVETsK6r2i/vRa4YpYECsooiCCSu9VWiAkhCSkkr7JbrbPTv/23x+TzGbY3WTTd8Pn+XjwYOdbZs6ZzM7OvL/nfI4CeAghhBBCCCH2C8/z2GbC2iykHLDl07YQQgx6ugIxDSaGYZgfFCQsEUIIIYQQYr/ZZngsSB7qVgghhNhbx5eBfqgbIYQQQgghxOHk7Wzh/3V+mBwpXKkUQggxuKU... | 1 |
math | grade-7 | perimeter-and-area-changes-in-scale | false | true | Look at this rectangle: If both dimensions are tripled, then which of the following statements about its perimeter will be true? | "iVBORw0KGgoAAAANSUhEUgAAABsAAAAOCAYAAADez2d9AAABkUlEQVR4nN2UP4vyQBjE506FxWyRwl5CJCARBBtFUghpAvaCneCXEGsLwdbW1kpIY6kgWOgnSGGwshCxUdc/yCLPW7xcIOd5x92BxU05zyy/nWV3X4iI8CS9PgsUwLbbLRzHQSaTCQ2XyyUsy4KiKDBNE7PZ7HcwIQRKpRKy2ezdsFarwXEc7HY7tFotVCoVSCl/ThNCkO/7NJ1OyTRNetNmsyHOOUkpAy+Xy9FkMqH3UlWVut0u2bZNyWSSXNeler1O+XyeLMsiIQQ... | [
"The new perimeter will be 4 times the old perimeter.",
"The new perimeter will be\n1\n2\nof the old perimeter.",
"The new perimeter will be 3 times the old perimeter.",
"The new perimeter will be 2 times the old perimeter."
] | null | 2 |
science | grade-7 | identify-ecosystems | true | false | Select the savanna grassland ecosystem. This ecosystem has:
a small amount of rain
dry, thin soil
many different types of organisms This ecosystem has:
warm summers and warm winters
a rainy season and a dry season
soil that is poor in nutrients This ecosystem has:
long, cold winters and short, cool summers
many evergre... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACtCAYAAAD2xRSHAAEAAElEQVR4nOy9ebglV13u/1lrVdWe95lPj+l0Z+oQhghhlEkZhAsOqAh6BURAUa78FAUFQbney0V4EEUG0asSCXi5+KiAz3VCETTGAAImEIYQkk7P3WfeZ881rPX7Y1XVrqqzT6eDMkjq7aee2ruGVWutqtP7rfc7iX/tGHO0AS1FiRIlSpQoUaJEiRJfE3QjuL0PYjs0piSeJUqUKFGiRIkSJb7W6EYgjDHmG92REiVKlChRokSJEvcNONkvb/6FDyKlRAgBgDE... | 2 |
math | grade-1 | names-and-values-of-common-coins | false | true | Which coin is this? | "iVBORw0KGgoAAAANSUhEUgAAAJAAAACQCAYAAADnRuK4AABP7klEQVR4nO29W1BUd9o3+svUiE239AfNdJcN4RA1NLGLw65IKe5GrQqCJjNkh2gOVCh8L0ZGxhprNBexhL0vwDIXSoq3HJx2LkaKfGZmzJAvzCQKYpUIO2q1qbeBgtCOEOgW2qJDNxvopm0v2BeL5+G/Ft2cPMTM9z5VljT0YfVav/Ucfs/phdnZWfy3/LesVn72Yx/Ajy2hUGA2FArM0s/f/L83Zul39v+6M2v/rzv8eHhoQPZc+vl/Z3nh310DKS/yHdsd9Pb24v3... | [
"quarter",
"penny",
"nickel",
"dime"
] | null | 3 |
math | kindergarten | fewer-more-and-same | false | true | Are there fewer beach towels than beach chairs? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACgCAYAAAA2PRuAAAAuzElEQVR4nO3dd7hcB33n//eZ3tvtVdJVb5Ysy5ZtXMAFE+PYoaQQWCfsEnaTsJDGLrvZkoXNJtnfZjdhN6Q+CSQkGEwLgbhgG4y7rWLLku690u293+l95vz+GPnKQl0aS6Px5/U8PNx7NTPnvIfnDN85c84cwzRNExERERERqQrLlV4BEREREZF6ogFbRERERKSKNGCLiIiIiFSRBmwRERERkSrSgC0iIiIiUkUasEVEREREqkgDtoiIiIhIFWnAFhERERGpIg3YIiI... | [
"yes",
"no"
] | null | 0 |
math | grade-4 | fractions-of-a-whole-word-problems | true | false | This year at the school baking competition, Diana won first place for her peanut butter cheesecake! She decides to give her cheesecake away. She cuts the cheesecake into 8 equal pieces. Diana gives 5 pieces to the new girl in her class. Which model represents the fraction of the cheesecake Diana gives to the new girl i... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJ8AAACfCAYAAADnGwvgAAAeq0lEQVR4nO2deXiU1fXHP0kmk23WTLaZrCSBJGRlR3ZUFC1FwYWqaNWqFX+ltrYutbZV29rF1tpWXKqtVhQUF3CpskOAJEAIhIQkZCUL2fd9liy/PyLInu1dJjCf5+HJk5n3PecM8829773n3nOd+vv7+2usUNQF7b3Q048DB6KgcAK1C4z3BH8lONVY+vsPtskdloMrjRkaUBR2DfxiVEKU14AyHTgQg/ZeyO+EaisUdIFzW8/AGw7hORAbtcuAzgA6esG594w... | 2 |
math | grade-5 | is-it-a-polygon | false | true | Is this a polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEBCAYAAABCCtJ/AAAdqklEQVR4nO3dz29Td9728ct1kmMSkmMY6uRZkGQTyIKILFIRiUhESqVGZVHUWQw3m5t2czOrmeXzL8xuupphhdi0YoOaBaiR7khBClIQWQSFRcAbxyzGuDzgQ4g5x67rZ+Eck0CgTnLs88Pv16ZS2sYf+kO6+Ob6fr6xarVaFQAAAABPfOb3AAAAAECUELABAAAADxGwAQAAAA8RsAEAAAAPEbABAAAADxGwAQAAAA8RsAEAAAAPEbABAAAAD3X4PYCfnm2U9DxXVj5... | [
"no",
"yes"
] | null | 0 |
science | grade-5 | use-data-to-describe-climates | false | true | Which statement best describes the climate of Amsterdam? Hint: Summers in the Northern Hemisphere occur in June, July, and August. Winters in the Northern Hemisphere occur in December, January, and February. Amsterdam, Netherlands, is a city in Europe. It is located in the Northern Hemisphere. It has a marine west coas... | "iVBORw0KGgoAAAANSUhEUgAAAtgAAALOCAYAAACTXGSDAAEAAElEQVR4nOzdeXyU5bn/8c9s2fedkA0CJIRACFsgYVEQiiI7aqkb6vGntra01bZW7Tk9Wj1d1GNd2h5rK26tioJiWFQQwiIEkIQQIEACWVkC2ddZ798fcYYEggaZZCZ4vV+vVvLM8lwzzzMz37nnXjRKKYUQQgghhBDCKbSuLkAIIYQQQoiryXcmYOfk5KDRaNBoNIwZM8bV5YjvoBUrVqDRaBg9erTT7vO7cl5PnDgRjUbD3/72N1eXAsBLL73keN7/+Mc/drmsvr4... | [
"Summers have lower temperatures than winters and the average precipitation stays about the same throughout the year.",
"Summers have higher temperatures than winters and the second half of the year has more precipitation than the first half of the year."
] | null | 1 |
math | grade-2 | purchases-do-you-have-enough-money-up-to-5-dollars | false | true |
A red pillowcase costs 4 dollars. Do you have enough money to buy it? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAF9CAYAAABxtxwVAAEAAElEQVR4nOy9eXwkR333/16fPcZHtbM20wHsLQ5Di8PM2BA0JIYdQwxjDiNxSjbglSEk2oTA6gnOb0UIYRcSkEKAFYFg7UMIKw4j2WB7wGBmOcIIiJnxw7ENAVwLAXogJlU2NtM++/dHdffMaLW7WuzgjdOf10uame7qurv7U9/6HuviOI7JkSNHjhw5cuTIkSPHAwJH3N8VyJEjR44cOXLkyJEjx32HnODnyJEjR44cOXLkyPEAwn1O8M2dMfLaWyg1foW5M9f+yZE... | [
"yes",
"no"
] | null | 0 |
math | grade-1 | time-and-clocks-word-problems | true | false |
Ian and Ava decided to play a round of golf. They started the first hole at 11:00 and they finished the last hole 4 hours later. What time was it when Ian and Ava finished playing golf? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAAdkklEQVR4nO2de1yUZb7Av3NhGJgZGFAE0gSVSSsvQKW0LmhtWsp2qu1iu6cL6e52EUttz5arneyc1Pbsbpua2+YRVrpsipuXU7Bpu4W4JFki3god0MHUGUBwZAYYhpl5zx/TjAzDbS5g6Xw/Hz76Xp7LvL/3ed7f8zy/5/cTCYIgGKxQ3QomO9gEQlxGSEWgkoAmEuJlIDK0C8K+5ktdrRCDwZQokGpbnQeJMhircL4NIS4fTHY41gJ6KxxvBXGzzXkhJOzLE5X... | 1 |
math | grade-2 | correct-amount-of-change | false | true | You pay 5¢ to buy a glass bead costing 2¢. You receive the following change:Is this the correct amount of change? | "iVBORw0KGgoAAAANSUhEUgAAAicAAAA/CAYAAAA7SmgCAAAfKElEQVR4nO3dWYxcV36Y8e/cvfaq3tnd7Oba3HeRFCmRlEazjzyyZ4wE8AIjCALDCODEDwESIE95DvKS+CFwbCeOk4knijQeSZa1UhIpivu+NNcmm70vVV373U8eWhoPYI5MSVxK5vk9sgFWfeeh6l93OVdIKSWKoiiKoigtQnvcb0BRFEVRFOWXqeFEURRFUZSWooYTRVEURVFaihpOFEVRFEVpKcajeJHAbVKv1/E8l2a9Tuh7NIrT+JHEMAzsbIFkMkU6k8VyEqQ... | [
"yes",
"no"
] | null | 0 |
math | grade-6 | interpret-double-bar-graphs | false | true | Dr. Stafford, a zoo director, researched ticket prices at other zoos around the country. Which charges more for an adult ticket, the Los Angeles Zoo or the Atlanta Zoo? | "iVBORw0KGgoAAAANSUhEUgAAAVEAAAJHCAYAAAApEWVZAABHoklEQVR4nO3de1yO9/8H8NfdSeXuQDkl30zENBQSYZPNceaYwxhjUiun2YbZPDYzfs5Dvk7luH1tbVgRJscIOStEyKlFoXRXdHLX/fvDt/vrVt0dru77utLr+Xh4fLuv676u631N35fr+HnLVCqVCkREVCEGYhdARFSVMUSJiARgiL7B8vPz4evri6+//rpM379+/Tp8fX0RFBSk48rKR6p1EQGAkdgFvImio6Oxdu3aYud16tQJY8eO1dm2v//+e7Rt2xYDBw6EgYE... | [
"Los Angeles",
"Atlanta"
] | null | 1 |
math | kindergarten | one-less-with-pictures-up-to-10 | true | true | Count the triangles in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABGCAYAAAD2IOMfAAAFzUlEQVR4nO3dT24TSRjG4eaPNKMZNJs5B5eZC/o44ShhFSQHVsSeBQqE8tvgONVdVe3n2QLdrZ9Kyhd9JfHqeDweJwAAoIrXrT8AAAC2xIANAAAVGbABAKAiAzYAAFRkwAYAgIoM2AAAUJEBGwAAKjJgAwBARQZsAACoaNgBe3/zZdrffGn9Gd3RJdMl0yXTJdMl0yXThWv2tvUHXOLh/mG63d1N0zRNf73/Y3rz7k3jL+qDLpku2eH+8L3L3+//nF6/G/b37aqcl0y... | null | [
"iVBORw0KGgoAAAANSUhEUgAABJQAAABeCAYAAAB1lk6EAAAKeElEQVR4nO3dQW4cxxmG4RqRUgxJdhYJEuQASVbO1qfIJgc07xAfQoZv4Dj7UIgBGRqKgBWRk8WEElP8RmZR09NVPc+z4cJxd+NFz5D4/ReyKqVsCgAAsBebzaacvy3ln5elrK9KeeevbQAW4HRVyucnpfzxaSm/f1LKqhgoAQDA3pz/vCnfvZ77KQBgOl99Ucrp3A8BAABL8sPl9ucfnpTy52fb/5oLAKNbX5Xy/ZtS/vW2lH9clvJo7gcCAIAlef1u+9MwCYA... | 1 |
math | precalculus | determine-one-sided-continuity-using-graphs | false | true | Is f(x) continuous from the right at x= – 7? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAACC60lEQVR4nO3deXxU5dk//s+ZLXsyWSAJgYQ9kJCgCCpb0WLVamsL6hfto9Y+VquWaq2ttdbaqpRaq7Zat9pal66P/NzFaFFQaKgsEQMJWwiQhZBlss5+1t8fQ1IiW4acOzOTfN6vV181kzlXLs6Zc5/r3HPf95EMwzBARERERESmsEQ6ASIiIiKi4YQFNhERERGRiVhgExERERGZiAU2EfWzdu1ajB8/HpdeeikA4Ktf/Spef/31475XURSce+65+OSTT4YyRSIioqg... | [
"yes",
"no"
] | null | 1 |
math | grade-7 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines intersecting? | "iVBORw0KGgoAAAANSUhEUgAAAFsAAABjCAYAAAD0H3xZAAALtklEQVR4nO2daVBUZxaGH1ZBhQSVgghGokIwhaATNEZkyqjBJepQiilXjAhqwAWjSESBiBHEJbhBFMQVjXErRo0CMaM1AjHRCUppwoDJYEQDg0qmARtooOeHgiyy9723G3iq/CF293d8PX73fu8557aWUqlU0okoaEsdQEeiU2wR6RT7OTe/z2LTyiOCrtHhxS6SyfGfF8UnM3fS3biroGvpCvrpas6p2MsciLiAvKgEALu3+wm6XocU++6dHML94vj15we1fu74V1t... | [
"no",
"yes"
] | null | 1 |
science | grade-8 | identify-how-particle-motion-affects-temperature-and-pressure | false | true | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAACTaElEQVR4nO3deVxbZdo//k8SlhASoISlBOheUltbaqGr1dLWXVKd8XGBuv604DbjAjrupeqoY6H6PDoqdGZsq4K7TkPVb12aVu1iQ0urXUL3QkM3KBAgLEnu3x80pwkJECAbJ9f7ZYWcnJz7TgpXr3OvAsYYQwCrqzuLo0ePob29DQKBwNfVIQQAEBwcjLi4eIwYMcLXVSE8RvGP+COKf84F+boCvmSxWFBbWwvGLAgJCfF1dQixU1d3FgkJCQgODvZ1VQgPUfwj/oz... | [
"sample A",
"neither; the samples have the same temperature",
"sample B"
] | null | 2 |
math | grade-7 | identify-trends-with-scatter-plots | false | true | Does this scatter plot show a positive trend, a negative trend, or no trend? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAj2ElEQVR4nO3df3DU1f3v8VdCQFg2YSusTXZFcAJky9RLIJsWwkws6AVRArS9fnW041QrNTitlXYKtPerQ4t2Ur5af1TT0I74K6i9jU6tXMXrj0KUC5hdxGmVXZrWAG4IBGWTDZuQLNn7B5ctISQCnt3PZnk+/uJzzpL3+wx/7IuTs2ez4vF4XAAAAACMyLa6AQAAACCTELABAAAAgwjYAAAAgEEEbAAAAMAgAjYAAABgEAEbAAAAMIiADQAAABiUVgG7q6tLXV1dVrc... | [
"negative trend",
"positive trend",
"no trend"
] | null | 2 |
math | grade-8 | model-and-solve-equations-using-algebra-tiles | false | true | Which equation does this set of algebra tiles represent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABiCAYAAABqHaQ/AAAJHklEQVR4nO3db2xV9R3H8e+5t7W6CyvKqIiFqEt0lP1RHDhhwoLTZy7byh4sYT6ZyUwWssVh9mAuBJaFsBnng/FkMfuXPdGsmpiRLVlYwhiQYaZzCaBDIx0ItZCwkBYK9PTsAbPypyh4f/f2nvJ6JST0pJz3gZDcT057T7OiKIoAAACSqEz2BQAAwFRiYAMAQEIGNgAAJGRgAwBAQgY2AAAkZGADAEBCbZN9AfB+8sG+KIb3Jj9vVpsf1a5ePT29FuoBTBXZu8/BPrV... | [
"– 5x= – 15",
"– 5x=25",
"– 7x= – 14",
"– 7x=21"
] | null | 1 |
math | grade-1 | match-analog-clocks-and-times | false | true | What time does the clock show? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEJCAYAAADhBFPCAABWeElEQVR4nO3deViUVfsH8C+i7IxSbggCYqaguQtohZWivYJaoibuSy4thr5uvb/UUjRT9FXUXhXcNZcEywVLaDFMBSxzySFNWWSQDDcGWQYVfn8YI8gsz+yL3891eTUzz3nOczfOXN5znvucY1NZWVkJIiIiIiKyCnVMHQAREREREekPE3wiIiIiIivCBJ+IiIiIyIowwSciIiIisiJM8ImIiIiIrEhdUwdApldWVobS0lKUlpSgtLQMpaUlKC0thW3dunBydISjoyM... | [
"12:30",
"1:00"
] | null | 0 |
math | grade-1 | ordinal-numbers | false | true | The first picture is a house. Which picture is ninth? first | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAhnklEQVR4nO3de1QUZ5438G9BdyuXbkQYQKSjwqiIgGZUVJJRdgPETOLdxKjJuI5x40xm1STG7Nk3UcnxPWc06sRs3sSsOpiMuZhgdMZcwczo5AQ16kpAxctAMK0IiR1Dc5Puhnr/qNB0Q1+qqqu6m6rf55yZo911efzGx/pR9dTzMCzLsiCEEEIIIYRIIizYDSCEEEIIIURJqMAmhBBCCCFEQrIV2D/aWIz4zII7/9aMH200CoUQQgghhKiDqAL70A0bii7e9lo4H71... | [
"paw",
"house",
"dog"
] | null | 2 |
science | grade-5 | identify-earths-land-features-using-satellite-images | true | false | An isthmus is a narrow strip of land with water on each side. An isthmus acts like a bridge, connecting two larger pieces of land. Select the isthmus. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOEAAAC0CAYAAABi8Es+AAEAAElEQVR4nET9SbNsSZLfif1U1eyc436HN8YckZFzZVZWJdAgUOyGdAt6Ay6woJCrlt7wM/BD8CNwywU3LZTmJE0K2Wg0CQELc6GqUEPOQ2TGHG8e7uB+jpmpcqGe2bF+8Z5fv2amqv9J5R//b/930VypGrgKUzFww1uH4lQtoJUNpfYDdap4VG7XlYYzmWEBg8EkglZDvXHYQExZilOksIagqhyPzvDOrsK1O2eLwqg8P2ycT7CrhbUPFAFXrnvncinMCC+2geO... | 1 |
math | kindergarten | fewer-and-more-compare-in-a-mixed-group | false | true | Are there fewer squares or circles? | "iVBORw0KGgoAAAANSUhEUgAAAeYAAAA2CAYAAAAS2jpUAAAIcElEQVR4nO3dz28a6RkH8G/Mj1kgZOwCxj9kU9kSjTe3JNd4W/XQrfoXrLTpaZWemz+kOTfaUxtpT7u3SttD1da5bnLLukWyJZyNbcxQe0IYPDA2PZCx1+sY82Ng5n3m+5GsSNYwer48b3gwDC83Op1OB0RERBQIU34XQEREROc4mImIiAIk6ncBFCzmZh0A4FgOACCa7C4RfS3tW01eYC61SM0lldR++ZWLgznE7KoN48UhzM06ai8O+7pN5t4M9LU0svdmoOW0MVc... | [
" circles",
" squares"
] | null | 1 |
math | grade-3 | read-a-calendar | false | true | What date is 9 days before January 26? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAGvCAYAAAAuQaExAABdqUlEQVR4nO3de1yUdf7//yfDQRAF5Og5UTyLqHgIkdjMUjO1zHVXt10/lbUdt9a+lj/aDvsp81NWW9ZuttvB7KSZW6JmmBoopOYRzyaiISKoICjnw8zvD2QEQRwUGLh83G+3bsbMNcNrXsxc85z39b7e42CxWCyqJPpkib7PKNHxArMAAABw7Tq5mTQmwFkT2jnbuxRcBxwqB/zok8U6km/R1A7OcjY5yFLbLQEAAHBFDpJKzBZ9eaJYXVuaNLGdi71LgsGZKv/wfUa... | [
"January 17",
"January 16"
] | null | 0 |
math | algebra-1 | compare-linear-functions-graphs-and-equations | false | true | Function A and Function B are linear functions. Which statement is true? | "iVBORw0KGgoAAAANSUhEUgAAAjcAAAGlCAYAAAAGbtd7AABQ/klEQVR4nO3de3yT9fk//leSNk2atrQUUg4t0OIPRAsUBVvUiqAIeJhTOXj4KvDRse0h8/CRTZ0bTp2KfnC6zQMDz2dFFIR9lM0Cgkqp+JFaFeokLbTUplCbNumdc96/P1izFtom6X03d5K+no+HDyS5c+VKct1vrly5c0cjhBAgIiIiShBatRMgIiIiUhKbGyIiIkoobG6IiIgooYTV3AwZMgQajabH//bt29fPaYbvxRdfhEajQVFRUdTv++OPPw4+J2eccUbU75+... | [
"The y-intercept of Function A is less than the y-intercept of Function B.",
"The y-intercept of Function A is greater than the y-intercept of Function B."
] | null | 1 |
math | kindergarten | compare-sides-and-corners | true | false | Which shape has more sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALgAAAC4CAYAAABQMybHAAAI0klEQVR4nO3dy1MbVxrG4bfVIDuaZHoDTKkKikshprDBJNnk/99mkQSDrQqiuBRUyQE2spMeI9N0Fg0TgXXpy7n0+c777Fz2oo1/HDXnfN0O0jRNPwyB4xj4lAB3KYicNRcA34VApwX8pwkEH27T9OePti+LSL2f/g3M9eLsF+0m8N9/ZfUTuepTAvz+F9AfAkcx0Ph4l/0G4yYJvguzlgHgzwRoJCO/QSTBY8tfUqBh91KI9GLgJBoDJ9EYOInGwEk0Bk6iMXA... | 1 |
science | grade-8 | identify-how-particle-motion-affects-temperature-and-pressure | false | true | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAAB79klEQVR4nO3de1yb9fk//lcSEpKQACWUQ0p6hnQ9YsHW1mqxqKsWPMypK25r/ejg1+rcAbap88A+uukmuH3modLuq61zVDs3ncHDtNXYznbV0NLWtoaeCw0tJS0lNIFA8v79keYu4RhIQu7cuZ4PK3Dnvu9cCXBx3e/TLWKMMUQxq7UFx4+fQGdnB0QiUbjDIQQAIJVKkZKSivHjx4c7FCJglP8IH1H+619MuAMIJ7fbjaamJjDmhkwmC3c4hPiwWluQnp4OqVQa7lC... | [
"sample A",
"sample B",
"neither; the samples have the same temperature"
] | null | 1 |
math | kindergarten | cubes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAZKElEQVR4nO2deXRdxZ3nP1X3vlX7YsmWbfBuYmzMYrBskiY4NEnIQlic7k4gbMkZ0j3pOZkzPd05nfQyvU/OmZCZM9Mk3WELSZppIIHEJAPBBALewGwGgyVv2LIs21qelvf0lnur5o8rP0leZVl699336nOO/9BP0r1f21+Vqur3q18JrbXuysLuFAy64GgMhqLDFlBlweI4NIdBdGW03jbgtyyDYeKsrga7PeV9MCsMSys8VxsMxcagC7uScDgLbSmQA473CWN... | 0 |
math | grade-7 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABfCAYAAADS+bBMAAANe0lEQVR4nO3daXRUhf3G8WcmC4GwBAIiCE1FVmWpWxFEgpE9CYsFagVra22xgtWKkCCgcCwCAfq3UDxSaC1tlR4FWTIJNFoMkgoiCqQsFqgYNkEISchCmEzm9kXQ5Er7l4SZ3Jm5388LOPnd3MnDiznn4eY39zoMwzAEAAAAwCecVgcAAAAAQgkFGwAAAPAhCjYAAADgQxRsAAAAwIco2LCn8nJp+3arUwAAgBBEwYY9rVghJSRId95J0QYAAD5FwYY9JSRIMTHSrl3... | [
"yes",
"no"
] | null | 0 |
math | kindergarten | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABYpElEQVR4nO3deVib15k+/lssEmAJsIQNkheEF0gcCCSkSe02QSSpnbZecJJmGrf9Gk+azHS6BLcz6Tpju9u005mfcZq20yWN0sXd7BoHZzFNapFMTZOaWARvwgvCiwAbYYEwIIHQ7w8ilUXL0YZY7s91cQVL55z3cSwuHh0973MkbrfbDSIiIiIiioqEeAdARERERDSbMMEmIiIiIooiJthERERERFHEBJuIiIiIKIqYYBMRERERRVFSvAOg+HONODA8MjjmawDDIw4... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABpEUlEQVR4nO3deVjU57k//vewfFicAWRQYFwYXMAYCSTYtJoFSFq1bYiY2LSxPRVPm5xvk7TR9tS0p23UpO1Jek4rtmn665KGdLGnrUaMthWbxCGLtGmIQ9AouA0uAyiDAzNsA8P8/iAzYZnl+czCDPB+XReXMPMsNzokc3M/i8LhcDhARERERERBoVAowh0CUdhFhTsAIiIiIiIimlqYaBIREREREVFQMdEkIiIiIiKioGKiSUREREREREHFRJOIiIiIiIiCKib... | 0 |
math | algebra-1 | identify-linear-and-exponential-functions-from-tables | false | true | Is this function linear or exponential? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEqCAYAAAAvYSeKAAAgSUlEQVR4nO3de1RV5b7/8Q+wABFQDMWUAwpqimiloXj3ZKWmW9t5SZHA1LJtptXYyU5STEZaO9QMLU1Lw9BQLFOTFDU1u2C6N5zyp1hUpnhJgoyLKLjg94ejdTZHRIsHYen7NQZj5GTyfZ7ZX2/mmMzl8PILJ8plB8ZNaqyVS36p7W3UuH/Mal7bWwAAAEA1ONb2BgAAAIAbCYENAAAAGERgAwAAAAYR2AAAAIBBBDYAAABgEIENAAAAGERgAwAAAAYR2AAAAIBBBDY... | [
"exponential",
"linear"
] | null | 1 |
math | pre-k | one-less-with-pictures-up-to-10 | true | true | Count the squares in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFACAYAAACGDgu2AAAG/ElEQVR4nO3aMYoiURhG0apREBRch7GRa+8NdOZijMxep8OEPVefyjkr+Kg/uTxqHWOMBQAASPyZPQAAAD6JwAYAgJDABgCAkMAGAICQwAYAgJDABgCAkMAGAICQwAYAgJDABgCAkMAGAICQwAYAgJDABgCAkMAGAICQwAYAgJDABgCAkMAGAICQwAYAgJDABgCAkMAGAICQwAYAgJDABgCAkMAGAICQwAYAgJDABgCAkMAGAICQwAYAgJDABgCAkMAGAICQwAYAgJD... | null | [
"iVBORw0KGgoAAAANSUhEUgAABDAAAAFYCAYAAAClCwyGAAAK4klEQVR4nO3dvY7cVBiA4WMyyUgsTIVAXACQehv2JrhZ0uUGVuIO+OkJIlU2iZKQlSmGNClGYjHrd2aep3FnfTpHsjzv2PI0xpgHAACwiHmex7N3Y/z2eoyb2zHeu9sGuJPNNMbnD8b45tMxvno0xjQEDAAAWMyzt/P46cXaUwCclu93Y2zWHgIAAE7Jr6/3x68fjfHdxf7fQwD+vZvbMX5+Ncbv78b45fUYn6w9EAAAnJIX7/dH8QLgv/n8wf5aOsYYL28FDAA... | 1 |
math | kindergarten | identify-pictures-with-symmetry | true | false |
Which picture has symmetry? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAMBklEQVR4nO3df2zcdR3H8df3rnf9cf21ruvKmGMg++G0AYa4RRQYQoCEaQBJDBoDmiAmmJCY+J9oSIj+aWCoAcSERULU8GNTw0BgsA3Y2EDWbi1l67qOla639q73q/fje/f1j9o4cWNb+/1+39/P9/16/DOW0c+9e9973vfH3bWW4zjOWBk4VACyVcB2QEQeqbOAliiwoglYHAessZLj7MlIj0Wkz7pWoO6jwsxfLogDqxIzdRKRN7JV4MM88EkZGCwAkYw98w+... | 0 |
math | grade-6 | front-side-and-top-view | true | true | If you look at this object from the top, what will you see? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADQCAYAAAA9HxZBAAAtbklEQVR4nO3de1zU953v8RdBxArLoLsJxEYuXh5HUwNjQ3qslzCkD32Yah8iJ6mc9EEYs62X3WQdTrRJTntk8NFtzcrujIlbqU0EQjfB1Q0kTTYuaWUSjaGN1PGSmK24DGpU7NYOBioiOOcP/E008QI6N+D9/Gc3CMzH/vX28/h8P58on8/nQ0REREREAuK2cBcgIiIiIjKYKGCLiIiIiASQAraIiIiISAApYIuIiIiIBNCQC9her5eSkhKioqJYvHgxXq833CWJiIi... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA1AAAADQCAYAAAAJQ4B0AAAx7ElEQVR4nO3dfVTUh53v8TdFxBXKoLsJxgYBH+7V1MLYkK71IQzp1WOqPQI3abjpIYxp68Nusgw32iS3vWHwdhuzocuYuJXaRIbQTbC6QtK0saSVX6IxtJE4PiSmlSyDGhW7tQNCRQS5f+BMNVEz4jzA+Hmdk+ORh5kv4eScfM73+/t+o/r7+/sREREREZGAiIqKCncJEkSfCXcBIiIiIiIiw4UClIiIiIiIiJ8UoERERERERPykACUiIiIiIuKnGy5AeTweSkt... | 0 |
math | algebra-1 | identify-linear-quadratic-and-exponential-functions-from-graphs | false | true | What type of function does this graph show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAETCAYAAAAMFHHvAAAfzklEQVR4nO3db2xb53n38R9ly5JFx5bjSXKaOLQCN9IjK7H8yLJkLDDibMmqJmxhB52zGAEWY3lRwHmzDVuRYV7RNEEwdMOARM36B0naNEBjZJ0BGUiQvFDQFZMsmzBbS37kIpuoKUMlKrElOZRpWdJ5XrA8PLRkiX8Oec4hvx+gKEnfpC5Ljvnj7evcl88wDEMAAAAAbFHhdAEAAABAKSFgAwAAADYiYAMAAAA2ImADAAAANiJgY0XxeFzxeNzpMgAAADyHgI0VhcN... | [
"quadratic",
"linear",
"exponential"
] | null | 0 |
math | grade-3 | purchases-do-you-have-enough-money-up-to-10-dollars | false | true | A green kitchen towel costs $3.38. Do you have enough money to buy it? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAGXCAYAAADGaCTxAAEAAElEQVR4nOy9eXwkR333/15f9Jg1rjYGT3PYWzaHW0BgBhvQGOzs+AGTsRMSiSuSnWDLHIn29SOwSiDPrpMH0EISpJCAlUAe5IRj5XBIHLYHc81iwCMOM23yhG0ggVrOHsJRxWFP+6J/f1R3z4xWu6u1Dd44/Xm9pJnprq67qr/fb32PTUmSJBQoUKBAgQIFChQoUOB+gaPu6woUKFCgQIECBQoUKFDg3kNB4BcoUKBAgQIFChQocD9CQeAXKFCgQIECBQoUKHA/wv8... | [
"yes",
"no"
] | null | 0 |
math | pre-k | circles-squares-triangles-and-rectangles | true | false | Which shape is a square? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACbCAYAAACao4KyAAACeElEQVR4nO3UO25UQRBA0ZrxJzC/DMQCgIiYLbARVsVGWAMpEZ8ck9pgCePRI3hCImd0RxrOibrVUqmCq94sy7Jc3s58uZm53s3cLQP/7HQz8+Bk5tnFzJPzmc3lz2V5f3XotThmrx7OnH6+WS9Pz2de3FsrhH91vZv5+GPm6+3Mp5uZ7dXd+iAy9unBydrUzMz33cx299cD7NOfpn4tM9vDrsL/QmgkhEZCaCSERkJoJIRGQmgkhEZCaCSERkJoJIRGQmgkTvc... | 0 |
math | grade-7 | transversals-of-parallel-lines-name-angle-pairs | false | true | \line{HJ} and \line{KM} are parallel lines. Which angles are supplementary angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADSCAYAAABw17dKAAAcpklEQVR4nO3df2yV9f3+8es+paWmQltMEcGVroi6AvZAawFRTw9OiZuTsqhxdrFdRjKiwR6ZzDHHrCPRRc1S2i2aOeW0kW7Kkh6XkFHUnKJRkHHaUzqODkItlWbIcT2l8wcW2n7/4NvzodIW2t7tfX48H8lJ9LzhfV+Q3OHFm+s+x+jv7+8XAAAAAFPYrA4AAAAAxBIGbAAAAMBEDNgAAACAiWJ2wO7q6rI6AgAAAOJQzA7YLpdLDQ0Npu/b19enV199VatWrdLs2bM... | [
"\\angle{KLN} and \\angle{JIG}",
"\\angle{KLN} and \\angle{KLI}",
"\\angle{KLN} and \\angle{HIL}",
"\\angle{KLN} and \\angle{MLI}"
] | null | 1 |
math | pre-k | fewer | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMwAAACGCAYAAACR4WX4AAAjgklEQVR4nO2daXBc2XXff/e93ncADTRWAiDABSCp4QxnhsPZd3nk0Uxsjzxy7CpVEstlpVKOU7I/pRw7SVU+REoqqaSUxKmUXVlsly1Zy2g0sjWakaxZxKGG5JDDDSCJlQTQAHrfu9+7+fDQ2EmiQXSTI9/fFxLdb/2fPvedd++55woppZwtweUcpA2oSBQKxRI2AX4d9ngg4gAxW5Tyg9SdviyF4u7naABsoznrjw4H7PNa3qRQKCzSBlzKwkwJRnKgpSrWF8p... | 0 |
math | grade-7 | classify-quadrilaterals | false | true | What name best describes this shape? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACdCAYAAACO2Q/zAAAVoUlEQVR4nO3df2zU933H8dfd2ecf3NnnX12BNQUpSSUyEqAQmBwVJ4SyzJ0wSHayAEmYKm37K+lUaX9Nav/Z3/lnk6Zpi1vCBLZEoQujFGjsCToIDAgUJkIkDBuQYmyffeez73x33/3x9Z2/gO0ccL7v5+6eD8mCuPz4pBDppc/77c/LY1mWJQAAAAB54XX7AAAAAEApIWADAAAAeUTABgAAAPKIgA0AAADkEQEbAAAAyCMCNgAAAJBHBGwAAAAgjwjYAAAAQB5VuH0... | [
"parallelogram",
"kite",
"quadrilateral",
"rhombus"
] | null | 0 |
math | grade-8 | identify-functions-graphs | false | true | Look at this graph: Is this relation a function? | "iVBORw0KGgoAAAANSUhEUgAAAQ4AAAETCAYAAADH+ejgAAAW90lEQVR4nO3dWWxbZaIH8L+z2bHbJgWyXCh1zbTESgJJ1GbTiKpBGonQBFQkCC+jmVYwEqJ94gHuwxSJUtQi4IUAw4wmLWhGmnQQt1JdtRKCVKOLsrSdmqnT66pc2QUhslzATseJnc33wfj4HMdZPsfx2f6/F2L35OTDcf7+9s8Sj8fjICISUKB2AYhIfxgcRCSMwUFEwhgcRCSMwUEZRaNRRKNRtYtBGsXgoIy8Xi+8Xq/axSCNYnBQRoODgxgaGlr233t7e9HZ2Yl... | [
"no",
"yes"
] | null | 1 |
math | grade-3 | is-it-a-polygon | false | true | Is this a polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD6CAYAAACbKDARAAAZ4klEQVR4nO3de4xe9Z3f8e/zzM3GxopZTF2cYAcMBDAYX2fGJgkJJCSAuRiPL0mzW6lS238itdtdNUq021WrttrddtXVtlL/7CpZsBkbCJfAEpKQJXjGd+4k4RJIAkIhihOHwZ7r0z/O83gmjm1m5rmec16v/yKIORrzx4efz+99CqVSqRQAAEBNFJv9AAAAkCUGNgAA1JCBDQAANWRgAwBADRnYAABQQwY2AADUkIENAAA1ZGADAEANGdhVuv/gSNz8V7+Jv3/qRLM... | [
"yes",
"no"
] | null | 0 |
science | grade-3 | identify-rocks-using-properties | true | false | Select the one substance that is not a rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEYCAYAAADPtGNgAADUxUlEQVR4nOz9V7Ml6ZUliC3X6mhxdaiMzARQBaDA6a6amrHqqhZj1mZtxnc+9b8i+TPGaHxsjo0Vi83qYqkGsiBSRMSNuHHV0cL9uHbnw+drn3MTQLOYApmJDoeFITPyinP8+P723muvtbb2t+u6/l4AtA28u95d764vcG1L4OMIuM2Avgn8WU/9vf4usN5d764vd7UN4HuB+uew3P+9/i6w3l3vri9/MY7yev93+jfzUt5d767f/+tdcL273l1f0/UuuN5d766... | 2 |
science | grade-2 | identify-solids-liquids-and-gases | true | false | Select the liquid. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AAAme0lEQVR4nO2de3Bc133fP+fcxz6ABbAACIIUH6FEi7YlUpKlipEfpfyqFcp2Yllxo8qZjlM7Tjy2O+4fnnHiZNJRpk3+6XgmadrYzbid1pMmtjO2rEaJ7YmtSI7lSI4USaQkUyTEJ0C8Fwvs7r33PPrH3XuxAAEJoAjsgrqfmeUuF4u9Zy+++zu/3++c+/uJJyrWHuiCkkNGxqZS1fDiAoyGUHbh7X3x8zITZEa7KDlwoCt+PK8Xn5eZIDPaSaK/yC4+J9szlIy... | 1 |
science | grade-4 | identify-ecosystems | true | false | Select the wetland ecosystem. This ecosystem has:
water at the bottom of the ocean
no sunlight
organisms that crawl or stick to the ground This ecosystem has:
land that is covered with water during most of the year
soil that is rich in nutrients
other water ecosystems nearby | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACtCAYAAAD2xRSHAAEAAElEQVR4nOz9d7xdVZ3/jz/XWnufdvvNTXLTK0kokY5gonQZFCsqMgIfxTr2UZmvjjo6oz/FYXRUBvuIlJFBRYQZbID0EpJAKOm9J7e3c885u6z1+2PtvU+59yYBdSycVx7nccpua6+9b87rvN7v9+stVg4as7gBmhR11FFHHXXUUUcdddTxR8FwCBvzIIYCY+rEs4466qijjjrqqKOOPzaGQxDGGPOnHkgdddRRRx111FFHHS8OOJVvfnjbOpRSyUMIhdYaHRq... | 0 |
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 an independent variable in this experiment? The passage below describes an experiment. Read the passage and think about the variables that are described. Dustin... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAELCAYAAACyM7+LAAEAAElEQVR4nOz9Z7ctyXnfCf4iIu32x59zfd1yQBUMQYKAKDZJuZZpqTWjV7NmVk+/mLf6LlprPkSvGY16Sa0WJZISQdDBCIYoAOXN9ebY7fdOHzEvInO7e8w1VaiClp67zs3caSMzI574P178y3/5Lw3/nf47/Xf67/RrRP/qX/2rz+W+DsD/+//1ldkGY8xsKc1s49J+YebHAWitl/YbUe430m6UarZfCIFGIIRYbgSAnG8DMOUx1bFmeff8mi/I8s3K861uO+3Yxf0... | [
"the number of mosquito bites",
"the type of mosquito repellent used"
] | null | 1 |
math | grade-6 | identify-polyhedra | false | true | Is this figure a polyhedron? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAAReElEQVR4nO2dfXRUZX7HPwiGuELusMU24DmbCdTU6JFJ2A1dITIhiJbYQxJUsCp52YRuDUImILVdCZls3J49SpgLKNtVkLygAgpM2CPUAslEI/RAy8ywR6DsykzOKQQXdG4CK0kWvP1jci8hr3feMjO4n3PyB8nMnSf58vxen/u7o2RZlvkzEcMd4V5AMKitraW2tjbcywgOchRjt9vljIwMGZABOSMjQ7bb7eFeVkBEpSAej0cuKChQhRDuHicLd49T/20ymWSPxxP... | [
"no",
"yes"
] | null | 1 |
math | grade-5 | reflection-rotation-and-translation | false | true | How has this figure been transformed? It has been... | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAIzklEQVR4nO3dX0xb1x0H8G8CNhhccG1iHKA0zh+qERGoFiVBSxVnTatV09Qo0qqp6QNsmqpN7UO7qZv2UBn1YZsmtW996As8bHuYsol1e2iblgglWqKQtk5oaEcCCQlhJsHEGBviayd3DwFSEoyPzTU+957vR4rU2Mc/H9n3G/v6nvPrhgMHDuiBQABG6O/vh67rYL386504ccKQWsUWCASkfp1Vq1caCAQQDAYNKdjV1QVd11lvDfWsgseVXPU2GlKJiKTGoBMpgEE... | [
"translated",
"rotated",
"reflected"
] | null | 1 |
science | grade-6 | compare-thermal-energy-transfers | false | true | Two identical greenhouses were next to each other. There were solar panels on the roof of one greenhouse but not on the roof of the other greenhouse. This table shows how the temperature of each greenhouse changed over 2hours. During this time, thermal energy was transferred from ____ to ____. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAABfCAYAAACdpLOcAAAmpklEQVR4nO3deVhT17o/8G8GSNCi1TicetEmWCWoGK0KggMqHq0cHluVDt7SWi2Wnut1oFUca4+IWltuW9uiPb38jrb6XPWorfeqHKUVB5wHVMSBUxDFqkfFAZApIdm/P1KikAA7IRiJ38/z8Ac7b7Lf9bLWZmVn7R2J564yAUREjejXUCW67Ct3dRpETRrHEZE4FSOUrk7B5aSuToCIiIiIiJyHE3wiIiIiIjfCCT4RERERkRvhBJ+IiIiIyI1wgk9ERERE5EY4wSc... | [
"each greenhouse . . . the surroundings",
"the surroundings . . . each greenhouse"
] | null | 1 |
math | pre-k | count-sides-and-corners | true | false | Which shape has 4 sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAACeUlEQVR4nO3Uv24UVxyG4d+s7S34k3RBuQBA4gYoc++UXEAkQnqc1gZLOF5NihFSarN6Fy3PU83o6Ehf8eos67qu1/czf9/N3B5mHtaB73a5zDy/mHn5ZObFfma5/rqu729OPYtz9vaXmcuPd9vP7/uZ10+3CuF73R5mPnyZ+XQ/89fdzO7mYTsQGcf0/GJrambm82Fmd/jfARzTt6b+XWd2p53Cz0JoJIRGQmgkhEZCaCSERkJoJIRGQmgkLh9/dZ37P/843hJ... | 0 |
science | grade-2 | compare-properties-of-materials | true | false | Which is smoother? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AABUjklEQVR4nO29WaxtWXnf+xtjdqtfuz19VR2KoivAUIYy4IDBDsb32op8L8lbEj9EcRrJspREkaxEykvyFiXXGD84FnlxJPsljnAcxzFODFVgcEdXhaGgmlOnb3az+jXbMcZ9GGPOtdbea+/T1AE2xfpL++x9VjPbb37j+/5fJ/5yYMxbmtD2WGGF7ylGCr49gZsZrPvwwTX7ulwJ5ArfL7Q9eEvT/j1Ws9flSiBX+H6ilL/czF6T359DWWGFo7ESyhVOHFZCucK... | 1 |
math | grade-7 | rational-numbers-find-the-sign | false | true | The number line shows an unknown number, x. Is x positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAlwAAAApCAYAAADgbPfrAAAGKUlEQVR4nO3dT2iUZwLH8d87k3mTzZ/GkEYaRHGhUEhFNxrHxLXFQ28i7IgecthgEWQVL+1FKAt7SQUPLYVVUPA0ralgiWw91h4mHjozcWIjg6HsIWlsm61p2uyaZDIzmXn3kJmJqX+SSfLOkxm+n0PI885L+IX38pvnfd7ntRzHcQQAZaSvr0+WZam7u9t0FJQI1xzlrsp0AAAo1qNHj0xHQIlxzVHuVl240um0YrGYIpGItm7duum+ZWQmgspMfKrszLAkyVO/R97... | [
"negative",
"positive"
] | null | 0 |
math | grade-1 | find-the-next-shape-in-a-pattern | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADhCAYAAAC9ZMGZAAAfY0lEQVR4nO3de5CV9Z3n8c9zOZfuPt0NqN2ICihg4kYuG281BnVm1qhJ3NpVdJJZd8IubmVrnfwx5WycmqqY3dHMTiWTkhmNzgQcJzpJdtRs7WriRJmBEYGgoI6gQBCQBrHtbqAv9P1cnmf/6DQ00pdze67n/apKpQJ9nt/39+ObPp/zPL/zPIbruq4AAAAAxIIZdAEAAAAAqoeADwAAAMQIAR8AAACIEQI+AAAAECMEfAAAACBGCPgAAABAjBDwAQAAgBgh4AMAAAA... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAADhCAYAAAAJS2C/AAAlhUlEQVR4nO3de5SddX3v8c9z2ZeZ2bNnksBMbiSBJCiFhBy5LeWmFgEtPT0YqLaoOcJZdpX2Dxc90tWuWk9BT5fWQisFK6AVbW1Rek69cIRUIoHEQAJIAkmEJGQSksnMJJlL5rovz37OH+MkEzLXvZ/bfvb7tZbLRTL7+X1/P77M3p/n+e3nMVzXdQUAAAAgFgzDCLuESDLDLgAAAAAA/EbwAQAAABB7BB8AAAAAsUfwAQAAABB7BB8AAAAAsUfwAQAAABB7BB8... | 1 |
math | grade-8 | congruent-triangles-sss-sas-and-asa | false | true | Which rule explains why these triangles are congruent? | "iVBORw0KGgoAAAANSUhEUgAAANoAAAGBCAYAAAAAI69bAAAxtUlEQVR4nO3deXxU5b3H8c85M5MNSMIWdkLYF9lEliAotkpd61bqLlKlFhWRYmvrgixqrXVBr7XWDdT2esWqiN62yhUoagKKEVCWELIQIIQlkI0ks5xz7h9nJhsBEsjMnJnze79evjDJEJ6ZOd95nvOc5/kdxTAMAyFEUKnhboAQdiBBEyIEJGjitBUWFjJv3jwGDRpEQkICSUlJXHjhhXz++efhbprlSNDEaVm+fDnDhg2jpqaGFStWUFJSwldffUV8fDwXXXQRy5c... | [
"These triangles cannot be proven congruent.",
"ASA",
"SAS",
"SSS"
] | null | 2 |
math | kindergarten | addition-sentences-up-to-10-which-model-matches | true | false | Which shows 5+2=7? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAXYAAABKCAYAAACvkX8HAAANDUlEQVR4nO2dS2wd132HvzOP+768lqgHLdKRKNlKmNgJqj6UrGoXsr0IsklhIIusgraLJAiQRdFdFl0EeazSRYG2yyySbOOigFMHQtNV0zYBnNhuKsWUIksVRZM2yfuYufM4XQwvX6LJO5cz9849+X8AQZEzc+Z8wvB3Z86ch9Ja64d9uN2FrQhCjSAIgjBFOAqaNjxTg/MlUA99rX++OelqCYIgCFlwfQacW93khydL8NF6kvqCIAjC9LAVwW868H99+N8uWJt... | 0 |
math | kindergarten | match-digital-clocks-and-times | true | false | Which clock shows one o'clock? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMIAAADICAYAAAC6ej5XAAAO70lEQVR4nO3de2xb12HH8S8l2/GDjpI2q5gs9taIi4Nli+i2QJJJbtFtGDXsAcxSkMXF4mBrMlQqtjgBpGGLXUTeH5GA2N0Wa1iAAabzArLYqJMBMwvYRhJxy6MDxMZo5kRM2qReLpsmMSxSlRTL3B8MaepqonjI++CVfh9AsAjz3nN4dX73nHt4LhkqFAoFaw4mp2FqHi4WEFnx1oRgcyv82kZoXwcha7ZQeO2C39US8c+tV8Kat6eLD65dB9s2FVMistJNzcP... | 1 |
math | grade-1 | subtraction-sentences-using-number-lines-up-to-10 | false | true | Which subtraction sentence does this model show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAUgklEQVR4nO3de3BU9d3H8U8SEmLIFUhA2pgYOoBg5CrhUsvFAbFWgSoROoxEi1isQ4U+DKJ2CpoWrNXqSMcR7ZRSG4ZbE0TL4AyYhKchF0ICjzBABQPEJJQQEnMlWbLPH8fdEAIkC0vOnt33ayazu2fPbL6/yeV89re/i5/dbrcLAAAAgFv4m10AAAAA4E0I2ABuWb1N+uyMNH+vFPihtLrQ7IoAADBPD7MLAGB9205JL/yv1CrJxqAzAICPowcbwC1bMEiqfUY68aT... | [
"7–4=3",
"10–1=9",
"7–1=6",
"7–3=4"
] | null | 2 |
math | algebra-1 | domain-and-range-of-absolute-value-functions-graphs | false | true | What are the domain and range of this function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABkDElEQVR4nO39f3yU9b3n/z8nM/mdQEICCUQTRAQFExRFyy/FQtVqawttF9tbf67d1m5tu93brXvrnk9P95x+XLffc057bnVtt+uup+r5dm89dWvtEQ0UBYWGChIhkKCIEUISyI8hv+b3NTPX9fkjhBL5lQnXm8kkj/vtxo3MZK5nXrmumWtec+U113gcx3EEAAAAwBVZ6S4AAAAAmExosAEAAAAX0WADAAAALqLBBjBKVVWVdu3adeby0aNHNXPmTLW1taWxKgAAMgc... | [
"domain: $\\{x \\mid x \\leq 3\\}$, range: all real numbers",
"domain: all real numbers, range: $\\{y \\mid y \\geq 0\\}$",
"domain: $\\{x \\mid x \\leq 3\\}$, range: $\\{y \\mid y \\geq 0\\}$",
"domain: all real numbers, range: all real numbers"
] | null | 1 |
science | grade-8 | compare-thermal-energy-transfers | false | true | Two identical aquariums were next to an open window. One aquarium had a plastic cover on it, and the other was uncovered. This table shows how the temperature of each aquarium changed over 1.5hours. During this time, thermal energy was transferred from ____ to ____. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAABfCAYAAACdpLOcAAAooklEQVR4nO3deVxU9f748dcMMDAsooiY5kakgAhc80JgXjXQRK5ZImqKW+Zy1RLpmmimqaiYt7pq+fXm8svUUlPSFsk0LcUlxVBxy71QW1GRYV9mfn8Q2DiIZ1gEx/fz8ejRw7N83p/z4XzOvOdzPueMquPrNwwIYeHWvGjPkHdzarsaQtzXpB8Jocy+mfVruwriAaeu7QoIIYQQQgghqo8k+EIIIYQQQlgQSfCFEEIIIYSwIJLgCyGEEEIIYUEkwRdCCCGEEMKCSII... | [
"each aquarium . . . the surroundings",
"the surroundings . . . each aquarium"
] | null | 0 |
math | grade-6 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADtCAYAAACF+wIyAAAhtUlEQVR4nO3dd5xU5d338e/Mzs7O9kG6LhA6goCABQl2QYoFc0dzEw0+SUyMGgtig+ROfJ47YsMW26OmaUy8o0YxiosLlmCiGAVkBaSjFClSZgtbZ+fcfwBzndWwLOyUc8583n+dXY/DNezOi+9c87t+P59lWZYAAAAAJIQ/3QsAAAAAvISADQAAACQQARsAAABIIAI2AAAAkEAEbAAAACCBCNgAAABAAhGwAQAAgATKiIC9cktMlz1WpYfm1qV7KQAAAPA4XyYMmhk... | [
"no",
"yes"
] | null | 0 |
math | grade-8 | compare-and-order-integers | false | true | Compare the numbers. Pick the correct sign. 3 ?5 You can use the number line to help. | "iVBORw0KGgoAAAANSUhEUgAAAlwAAAApCAYAAADgbPfrAAAJq0lEQVR4nO3deUgUbxgH8K+lW2qW1loZaQcdYBd2eCRGFpRURqtRCVKBUFJQEIVBEBQiRYckFRVqVhBRWGGYWX/EZoZnZmqCBplZtGkH5rG7bvr7I3Z/HrO6a+nsO30//+3s6PNML8/7Ps5MM05dXV1dUJCbN2/CyckJMTExjMEYjMEYjMEYjMEYDsFZ7gT+tg8fPjAGYzAGYzAGYzAGYzgUmxuujo4OlJaWorCwEBMnTlRMx0lERERkr5s3b6KxsRFBQUFYsmQJXFx... | [
">",
"=",
"<"
] | null | 2 |
math | grade-1 | which-tally-chart-is-correct | true | true | Amy went to the market. She counted some vegetables. Which tally chart shows the right number of each vegetable? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADhCAYAAADyOcJJAAA55klEQVR4nO3deXxV9Z3/8dc55y5ZyGIIICoGEBAEg1MqUoRUBe0i1qpVp25dbG1H7TLtzFQcnbGVTu1Mra2t2l871gVF5zf2Vzdsq6gtSwGFCgn7IglLAiSEmz13Oef8/rgh4ZJ7E0Jucm+S9/Px6ONx7/f7Pfd8TsVH3/3yPd+v4bqui4iIiIiIJIWZ6gJERERERAYTBWwRERERkSRSwBYRERERSSIFbBERERGRJFLAFhERERFJIgVsEREREZEkUsAWEREREUkiBWw... | null | [
"iVBORw0KGgoAAAANSUhEUgAABDYAAADhCAYAAAAzpzXIAABs7ElEQVR4nO3dd3yV5f3/8dd9ZnYCCSAzBFkKAoIKoiACoohorXu3at1WrXWg0lqlrR3O1lWrfhVFrfpzgRtRhiwRCHtnQAJJCNnJGfe5f38cCIScDLJOEt7Px4OHOde4788dQkw+57o+l2FZloWIiIiIiDQJwzDCHYKIyFHFFu4AREREREREREQaSokNEREREREREWmzlNgQERERERERkTZLiQ0RERERERERabOU2BARERERERGRNkuJDRERERERERFps5TYEBE... | 0 |
math | grade-5 | fractions-of-a-whole-word-problems | true | false | Lester's Great Grandma Zelda makes the best apple pie. Somehow, she always brings too much when she comes for the holidays. This year, there's a whole pie left over! Lester cuts the leftover pie into 6 equal pieces. Then, he offers the pieces to his aunt and uncle as they leave for home. Lester gives 2 pieces to Aunt K... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJ8AAACfCAYAAADnGwvgAAAYC0lEQVR4nO2deZxT1d2Hn5vk3myTZIZlGNYZhlVA9mETqL5u+KKFKuKuLNZal2r1LW19paK+qEWtS+uGbCpVsFhxoVK1ln0ZNlFBlgEZNlmHSTLZbm5y3z8iFRRxgNycZOY+n08+M0OS3/kO8+Tc7ZxzJV3X9X0qVIQhmABNx8TEEGwSeKzQzgVNFJD2xXS9PCA6lkl9o68XbFvDqR+aKtDBnTLTxMQIggnYHIKvVdgSBktASz1himdiNB5ryjOAmgRYEsc8YWJ... | 3 |
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