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-7 | classify-rational-numbers-using-a-diagram | false | true | Use the diagram to help you answer the question below. Which of the following is both an integer and a whole number? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEuCAYAAAC08GWcAACGX0lEQVR4nO3dd3hUZfbA8e/0kt5pAUJC71IVERAUBVQUsaBiWbvY17aubW0/u65l17J2URQUEEQEld5776GEkl5mMn3m/v64yQDSIcmUnM/z5JnJZDLzziRz77nnnve8GkVRFISoR/IdAfZV+ilxBaj0Kjh8AZw+BYdXweFT1OtV3wevV9/uDRzlNgWbV/0Yxeg1mPUazDoNZj1YgtcPXv71NkvVbQkmLYkmDUkmLUlmLYkmLUkm9TLeqAnxuyaEEEKIk6WRAFtEixK... | [
"11/12",
"16.2",
"–94",
"40"
] | null | 3 |
math | grade-4 | multiply-fractions-by-whole-numbers-using-models | true | false | Which model represents the product 4×
1
12
? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHsAAACPCAYAAADaxKRwAAATXUlEQVR4nO2de2wTV77Hv45DNxCWcaRV4/QfGwwbqdIyDrq6AUSwQy/sXenSOKn6WF3yYENa2t4WKNANbZGdttqyha6zd7VLUyrygCsl4oqEdrXqwpXsYKv08Uec8BddjMf9ownq3rVpE6Bc03P/cM9h7Njxa2ZsMvORUAueOXNmvuec3+OcOaMjhJCZO8DVm8C3d4EYgcYioVwH/FgPrFkGVD8A6Ga+I+Szb4pdLQ25qV8BlP/tZvwvNQ8AtZXxlqCxOPj2LnB... | 0 |
math | precalculus | identify-graphs-of-continuous-functions | false | true | Is the function f(x) continuous? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AAB7O0lEQVR4nO3deXxU9b0//tds2feFJAQSdiSQAIEAQTYFFUVRUASXVrvXqt339np/11Jvb63221Z7vb21aq/WBcUNDIiymgiBAIGELQQICSHLJJPJ7GeW8/vjmEBYJ+RzcmaS1/PxyGO2M695M8ycec+Zz/kcnSzLMoiIiIiISAi91gUQEREREQ0kbLCJiIiIiARig01EREREJBAbbKJBZPPmzRgxYgSWLFmidSlEREQDlo47ORINHosWLcKXvvQlPPTQQ1qXQkRENGA... | [
"no",
"yes"
] | null | 1 |
math | grade-2 | more-less-and-equally-likely | false | true | If you select a marble without looking, which color are you less likely to pick? | "iVBORw0KGgoAAAANSUhEUgAAALEAAAB2CAYAAACHxHLJAAApJUlEQVR4nO2deZRUVZ7nP/fFkpkRuScpkKkkqywFlDTYLrTJEUtBrWkLnEFwyrHartNUM91dp2RmWstirJ5jixzPaNmLp8541Bbag9U2jVh9GrTUUhBLIbNxoVk0FVkyATPJhciMjOW9e+eP+96LF7lHrizxPQcj73s33rsRft83fvd3f/f3E0opRRZZXMQwxnoAWWQxVPjHegCXK958803effddTpw4walTp6ivr6e+vp6cnBwqKyuprKzkyiuvZOrUqdx5551cc80... | [
"black",
"neither; black and pink are equally likely",
"pink"
] | null | 1 |
math | kindergarten | spheres | true | false | Which shape is a sphere? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAWM0lEQVR4nO2dTXAU13bH//d2t2Y0GiFpJL4lATHIBa9gKLsq4IXDQ4k3uGwvbN4KyAaXUxWbV7y8bBKTDa7KInE9nu0sYuxFwLvYC+PAikDAC7AXLiRXmbIkPxAaJB5oRiM0n5rue7O40z0aaST00Z8z97fR0GpuH8399+1zT597LuGc80ezwEgOmDEAnUMi8R0qAVoVYFcE2NgEkEdFzr9/6rVZEsnyObAOUIdz4h+bm4DnW4SqJRK/MWMAP2eBiVlgKAfQp7r... | 0 |
math | grade-3 | am-or-pm | false | true | Robert is looking for shells on the beach. His watch shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABX8klEQVR4nO3deViU5foH8C8oqw5qJxcEBbFSxlLcAC1RU/SoqCWaa+aSW2VoLtVJ7aS2uHQUteOCilsuKaYompBl5AJiHpcc0pJFRtEfKjgozIDA7w9iZGSWd2beYQb4fq7LS2bmeZ/3FuHi5pn7uR+7kpKSEhARERERkSjsrR0AEREREVF1wgSbiIiIiEhETLCJiIiIiETEBJuIiIiISERMsImIiIiIRFTb2gGQ9SmVSuTn5yM/Lw/5+Urk5+chPz8ftWrXhquLC1x... | [
"8:55 P.M.",
"8:55 A.M."
] | null | 1 |
math | algebra-1 | model-and-solve-linear-equations-using-algebra-tiles | false | true | Which equation does this set of algebra tiles represent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABiCAYAAABqHaQ/AAAIu0lEQVR4nO3dT4ic92HG8eedWXktr+PFKTtoFUkmsi9S0rSxI7vYt5QEu6GBZoVRSk/FRSdTCDr6nFpJEDoUDIWA8SnBrJtcwmIItrteCclQB1NW0KDE+hNLXtleIe1W3tW+8+YgupalTW1Jv1lVM58PCDTD8H7fPYh9GGZ+qpqmaQIAABTRut03AAAA/cTABgCAggxsAAAoyMAGAICCDGwAACjIwAYAgIKGbvcNAOujnptMs3is+HWrkR1pdyb09PT+jx4wWKr/PQd... | [
"– 8x= – 24",
"– 3x=24",
"– 3x= – 24",
"– 8x=24"
] | null | 3 |
science | grade-5 | predict-temperature-changes | true | true | Two identical blocks are heated to different temperatures. The blocks are placed so that they touch, and heat begins to flow between the blocks. The pair of blocks is insulated, so no energy escapes. Later, the temperature of each block is measured again. Which pair of temperatures is possible? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAACgCAYAAADq8hJGAAAZPUlEQVR4nO3deXAU95338Xf33DM6ETqQkJAQ4jbYxpiAiQ02ODGOjbPZJ4kTO8863uTZrGv32VScXdc+m3322Y2fp+Ik9dQT+3G2UrkcyMZxYscHYBuwwdw+OAWIQ+i+72vume79o6UWIAESSPRI+r6qXLhaM6PW/Ho+/ft9+zf9U3Rd1xFCCEC1egeEEIlDAkEIYZJAEEKYJBCEECYJBCGESQJBCGGSQBBCmCQQhBAmCQQhhEkCQQhhkkAQQpgkEIQQJgkEIYRJAkE... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAiAAAAC4CAYAAADaI1cbAAAmRElEQVR4nO3deXxc5X3v8c+ZfZEsyZYsW7bkfQNjVuNgCEswJEBYsjSEBNIS2tymeaVtbpI2t23a3CbpvSHpXZKU9OaVJk0gzdIACYsJYFYvgMEYbGPj3Vqtfddo1nPuH2ck25Jsy/bozNHo+369eA2v0cyZx/M885vfeZ7fecYALEREAMuyaE7CgRj0ZSCt6CAiOeIzoNgLSyJQGQADJSAiktWcsNjam+9WiEihWzMNfPluhIi4x/6YfTs7AMui9tmKiEgu9GV... | 0 |
math | grade-2 | match-digital-clocks-and-times | true | false | Which clock shows seven o'clock? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMIAAAB5CAYAAABr7P6HAAAIWElEQVR4nO3dPWwb5x3H8S/9NrjKcanbpDALeGjT+Lh0SAxrMrxUGTrUksmtgG3RUwHToIBMlUx6amFJFODJEuKik+lKLtAOUpp0KsAhSxeeUSedekbj2l1OcmzIsnodKAqUTEn3TtL8fZZAEPl/ztHzu+denucu5bqu++QV/PMFrG3CaxeRt96RFLxzGH50HL5/DFJP1l33y9Vub5ZI95wx4MjXL5o/vHcM3v9OMyUib7u1TXj0LXzzCr56AYdWXzd/oRDIIHn... | 0 |
math | grade-1 | square-corners | true | false | Which shape has 1 square corner? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAD4ElEQVR4nO3aT1ITQRTH8d8kgaIQ1JWWB1A37LmDXMCLeRQ9BGs3iHtxSyAFSGpcjCjyP8nM637vfb+rmZqqrl58qpPpnqZt2/boQvo+k6Zz6bIV0cpNGml7LL3dlF6vS83RedvuH5eeFkVu97k0OZx1N2/WpffPOoVEqzadSwen0o8L6dtMGh1fdg9ARn22Pe5MSdLJXBrNrz0g6rMrU79aaVR2KpQloJFJQCOTgEYmAY1MAhqZBDQyCWhkEtDIJKCRSUAjk4B... | 0 |
math | grade-5 | nets-of-three-dimensional-figures | true | true | Which figure will this net make? | "iVBORw0KGgoAAAANSUhEUgAAAM0AAACmCAYAAAB5jwvwAAAOC0lEQVR4nO3df1RT990H8HeQifiA9WQuPThpz9DW2M1GcS2yatFuO8Wh6y+U9lFsu4cOj1SRZ/IUgsgo8sOBRSrukGrrrForOlcHnenTVmG2i6lTiHY1VmVH8ZGH1GVUqAgLyf7oyEoTgQs3996E9+s/44X7ySFvvvfy+X6/V+VyuVwgokELkrsAIn8TLHcBYlCpVHKXQIMUCBc2fj/SMDD+JRB+XgEx0gDArp83y10CDSD5lUi5SxCF3480RFJjaIgEYmiIBGJoiAR... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAACmCAYAAABX731LAAAgF0lEQVR4nO3dfVzN9//H8cdJihTNLMsWQ1cycjFLrmpjm35zMabYrJnNbGOmTEO08nUVRuyir2vNxVBflovRNlvlYmm+KIaTiBFNS4uIUp3fH62+TFI553zOqdf9n25yzvvzaseefS7e79dbpdFoNAghKk2lUildgtAjE6ULEEIIQ2aqdAHaIL/ZjYdcuAhjY/RnkhKQxkU+L2FsasSZJMDa0ReULkE8gO8yO6VLEKLKjP5MUgghdElCUgghKiAhKYQQFZCQFEK... | 0 |
math | kindergarten | count-money-pennies-and-nickels | false | true | How much money is there? | "iVBORw0KGgoAAAANSUhEUgAAAMIAAACDCAYAAADf5cT4AAB2RUlEQVR4nOz9Z5Rc13XmD/9urFs5dHXOuRuNnDODKIgUkwId5CD9xwq2x7ZsS/LYHvkdeZyWl+0ZazSekYNkK4yClSiKIilmEgABImegETqgc6ycbn4/VHeJtCkSYDIlYWP16kajUHWfe/c+5zk7Cq7rutyQG/JTLuJ/9AXckBvyVpAbhnBDbgg3DOGG3BDghiHckBsCgPxmfZDr2BQLBfLZDLlshnQqRSG1SL6kIwLBaIxgpIqA34/m9xMOR1BUFUEQQBDerMt8Q+T... | [
"11¢",
"14¢",
"10¢"
] | null | 2 |
math | grade-7 | model-and-solve-equations-using-algebra-tiles | false | true | Which equation does this set of algebra tiles represent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABiCAYAAABqHaQ/AAAIAklEQVR4nO3dUWhe533H8d95JU+ZZVVuFStOrCVNQmgtt2P2ZhtSkpSwwNZdlOEMOgjZTSi5Mb1xbrIUYw8SfJcbXxSy3Y02oSJXaWFGMCdjZs5w1hbbK04yv7S2FcnDxYkcBeu8pxfuAiFNLc/P0fvK/XyuxNHL8/wvvxzOeU7VNE0TAACgiE6/BwAAgFuJwAYAgIIENgAAFCSwAQCgIIENAAAFCWwAAChIYAMAQEHD//fHiYUjuXDl3eIb3Ln+vuzY9NinrtfzM2k... | [
"x+1=4",
"x+1=2",
"x+9=4",
"x+9=2"
] | null | 1 |
math | kindergarten | compare-sides-and-corners | true | false | Which shape has more corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALgAAAC4CAYAAABQMybHAAAFNklEQVR4nO3dUWubVRzH8d+TtL2Ym94pXov6Enax9+KNL8lbFWG7mMKmMDaEIUXY0GRlKSuFrnEoDcOaC1uaJZCY9PHiWBxhs7EkO+f8zvdztdJB/oNv85w8S/6t6rquDyfSLyNpMJOmtYBsrVXSlab04SXpvQ2pOhzXdfsk9ljA8l19W1rrjsIX729IH78V6gdyNZhJT4fS7xNpfyQ1TqbhG8QNB1eaoWVJejGTGrOXvgE4OGv5r1pqxB0FWC0ChzUChzUChzU... | 0 |
math | kindergarten | count-scattered-shapes-up-to-10 | false | true | How many triangles are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAFlCAYAAACeMpzjAAAthklEQVR4nO3dzW8kR3rn8UcazUiatmQbuzYGO9jbYLDexS7sPfjk6wK++eD9Y/fS3SJBmtUjki2QQ4CcJsEXQOrSNDOrklmZUfkSEXtgaaRWN7uKVZkZkZHfz2046mJUFsn8ZUQ8T3xkrbUCAAAAIAgfux4AAAAAgOYQ8AEAAICAEPABAACAgBDwAQAAgIAQ8AEAAICAEPABAACAgBDwAQAAgIAQ8AEAAICAEPABAACAgBDwAQAAgIAQ8AEAAICAEPABAACAgBDwAQA... | [
"2",
"8",
"9",
"6"
] | null | 1 |
math | grade-2 | identify-repeated-addition-in-arrays-sums-to-25 | false | true | Which addition statement describes the array? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACpCAYAAAARMkpIAAAQpUlEQVR4nO3dL2xjZ7rA4XeuFkw1lZyW9A9JtgMLHKklZSYpHMukJa0cs6GRhiyyPWjJaEyXeadFgywt6xCjooITUBjJaNSS1iBS4L0ga6vRzcz4z3fi7/g8D9ruxOecH/Ir54vfe4PB4H9jj/T7/f/3/w2Hwx08SXk07oe6NgLAvvufXT8AAADsk78t/kfVP2la5ZM/jfnTeK0OjQCwr3yCDQAACRmwAQAgIQM2AAAkZMAGAICEDNgAAJCQARsAABIyYAMAQEIGbAA... | [
"2+2+2",
"1+1",
"3+3+3+3+3"
] | null | 2 |
math | grade-2 | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABWHklEQVR4nO3deViUVfsH8C8u7IxQLiEoiLmA5S6gJlqGvglqiRtqlppLi6G51a+0FFsUfRW13HdzSbEUsYQWo1QWNZcc0hIYHURfF2AQmEHE3x/GCDLLM/sMfD/X1RXDc57z3BFc3Jy5z33sHjx48ABERERERGQUdSwdABERERFRTcIEm4iIiIjIiJhgExEREREZERNsIiIiIiIjYoJNRERERGRE9SwdAFmeXC5HSUkJSoqLUVIiR0lJMUpKSlC3Xj04OznByckJTs7... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABlpElEQVR4nO3deViUVfsH8C8uDOsI5YagIGoKluIGqImVoaVoveK+lZqmlmm51a+0XHrL7VVsUXFf0kyxFLWEFiMXFjOXHNJk00EwF2DYZpDl9wcxsgzMM/vC93Nd7yXDc57z3OLQy819zn1sysrKykBERERERHphY2Nj6hCITK6BqQMgIiIiIiIi68JEk4iIiIiIiPSKiSYRERERERHpFRNNIiIiIiIi0ismmkRERERERKRXjUwdAJmeXC5HYWEhCgsKUFgoR2F... | 0 |
science | grade-2 | identify-mammals-birds-fish-reptiles-and-amphibians | true | true | Mammals have hair or fur and feed their young milk. A kangaroo is an example of a mammal. Select the mammal below. | "iVBORw0KGgoAAAANSUhEUgAAAtMAAADMCAYAAACx6y9WAAEAAElEQVR4nOz9d7hkVZm3j98r7FDp5M50N6FpYpMZkBaUURQQECQo4QXBwA8jMKNgQERmdBRexIAzREFgBkVlBBwFZBwkSEaSSGygaWg6nlBhhxV+f+zqM7RNQwMH8eu77+s613WqaodVe6+qetazPuvzCO+9N8bgnKOkpKSkpKSkpKSk5NWRUqK1RuR57stAuqSkpKSkpKSkpOS1IaVEloF0SUlJSUlJSUlJyWvHOYd8qxtRUlJSUlJSUlJS8v9VymC6pKSkpKSkpKS... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA4IAAADMCAYAAAAmsx3gAAEAAElEQVR4nOz9ebwlVX3uj7/XUFV7PPPpeQKaZgYBURQlEicwOAIOgYhooj+nBE2MJGoMIT9NFIeo5F7HOECico0Xh68D8SYEQWUQERCZuoGm5+4z7LGGNXz/qL13n3P6nO7T0EG/ufvhtV99TtWqVauq1j7Us57P5/kI7703xuCco48++uijjz766KOPPvo4MKSUaK25rQZHlaGqftMj6qOP+VG3cF8TtqUwrOFZQ/l22SeBffTRRx999NFHH330cXBwzmGM6ZP... | 0 |
math | grade-7 | rotational-symmetry-amount-of-rotation | false | true | This image has rotational symmetry. What is the smallest fraction of a full turn you need to rotate the image for it to look the same? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAAAi2UlEQVR4nO2de3xV1Zn3f8/ae5/k5B6SkBuBgARUtFalKiQBUm21XNVWrW3faaedjq0CfXvv23beodNp37bvtPMWYjvUdtrO9OKtiKC2ahUhCYii9cY1XKJAEm65J+e293rePxIwQO7Ze699Tvb38+HzgZN91vPjZP/O2mutZz0L8PHx8fHx8fHx8fHx8fHx8fHx8fHx8fHx8fHx8fHx8fHx8fHx8fHx8fHx8fHx8fHx8fHx8fHx8fHx8ZnQkGoBicxTk9ZmmAFRIkg... | [
"1\n4\n of a full turn",
"1\n2\n of a full turn",
"1\n5\n of a full turn",
"1\n3\n of a full turn"
] | null | 3 |
science | grade-5 | match-chemical-formulas-to-ball-and-stick-models | false | true | Select the chemical formula for this molecule. | "iVBORw0KGgoAAAANSUhEUgAAAV4AAAFUCAYAAABssFR8AABnuElEQVR4nO29d5wk13Xf+7u3qjpP3MmbAxZYLDIIgJkAk2RSYgKfKMoyJTHJSqRoPVuBpCnRJq1gP9uSHh+VbNqCSUk2RUoiBCYIRCLAgLDI2IANsxN28kznSvf9UXWrq6ur43T39Mye7356u6e6uu7t6qpfnTr3nHOZEEKAIAiC6Bp8qztAEARxuUHCSxAE0WVIeAmCILoMCS9BEESXIeElCILoMiS8BEEQXYaElyAIosuQ8BIEQXQZEl6CIIguQ8JLEATRZUh4CYI... | [
"SiH4",
"SiH",
"H3",
"SiHe4"
] | null | 0 |
science | grade-5 | 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. Black howler monkeys have loud calls, or howls.... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACmCAYAAACcAuREAAEAAElEQVR4nOz9d5gkV3noj3/OqdR5ctjZnJVWEUkoghASSIBMlJCRJZFsGZMNhksyNlywL8aAMTbcSzTJIAQIMAIJCRRBcRU2aFebw+yknp5OFU/4/dG7Yy1IIIKl78/uz/PMMzPdXXVOnXqr6603irvr1q4tQtmhS5cuXbp06dKlS5f/EpoatrRBNJS1XcWzS5cuXbp06dKly381TQ3CWmuf6ol06dKlS5cuXbp0+Z+B++h/XnzKEsaGh1iyZBmpsRiVghEI6eH... | 0 |
math | grade-2 | identify-repeated-addition-in-arrays-sums-to-25 | false | true | Which addition statement describes the array? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABWCAYAAAD19uGEAAALBUlEQVR4nO3dMUzcdhvH8d/7KkNZajMmSsQlIwxnxJI0A0ZCoZVacQzQMUZR1+IkQ0fuxg5tLhlTpbjqFhajLmXzSU3JguqFjMgRUVaMOqTb+w707gmFKvHFdyD8/UgR0SU+//Vd/o98h/2fZrP5P1XQ6urqsddardYprOT00cLQwtDCnNQCAIB/89/TXgAAAABwnlzo/qUqV2je5wocLQwtDC0MLQAA+HdcwQYAAABKxIANAAAAlIgBGwAAACgRAzYAAABQIgZsAAA... | [
"4+4+4+4",
"3+3+3",
"2+2+2+2+2"
] | null | 2 |
math | grade-2 | place-value-up-to-thousands | false | true | What is the value of the underlined digit? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAAiCAYAAABlRa5TAAAHaklEQVR4nO3dW0hUWxgH8P8eJ3TUTC0fJBHCsiYKTbRUMugCoYb2EFgNVFaEWg9SYYUQXShEoxsVI0oOJcpYgz2UKRZ5GTRKUUtyMCnKLPBS462yC/s8iOu0z3hOHWfPOcfD//f0rb32WnutefpYrFlLkmVZBhERERERqULzbw+AiIiIiOj/hAk2EREREZGKmGATEREREamICTYRERERkYqYYBMRERERqYgJNhERERGRiphgExERERGpiAk2EREREZGKHBLs1tZWpKS... | [
"1,000",
"1",
"10"
] | null | 1 |
science | grade-3 | classify-rocks-and-minerals-by-color-shape-and-texture | true | false | Select the brown rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAADwQUlEQVR4nOz9V5BmeXreif2ON9/5vE2fleWruqrdzDR6DGYADEFgSQo0q1BshK7Fa12vdKFQ6EIh6UIRUixXlJaiGKsIUtwlsUsCIAaD8T3dPe2rqstmpc/P++OtLk5WtZmeniEGsxiA9UZUfFmZ53Pn/J/zf83zPq+QZVnGM3tmz+wzTfyr/gDP7Jn9OtszgDyzZ/Y59gwgz+yZfY49A8gze2afY88A8sye2efYM4A8s2f2OfYMIM/smX2OPQPIM3tmn2PPAPL... | 0 |
math | kindergarten | one-more-with-pictures-up-to-5 | true | true | Count the pinecones in this group. Which group has one more than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAABDWElEQVR4nO3deXxb53ng+98BCQI44AaSILjvu0SKFClqXyzLtmI5lp2kaadO2qSZJW3TzWnT+TRN7iST25tmplMnN5Mmt510pnHamTRNYqfxbmsXJXHf9wUkSAIECZDEThI49w+QIGlJziaJkPR+/xLOOTg458Dvxw9fPO/zSIqiKAiCIAiCIAiCcEeodvoCBEEQBEEQBOFBIgJsQRAEQRAEQbiDRIAtCIIgCIIgCHeQCLAFQRAEQRAE4Q4SAbYgCIIgCIIg3EEiwBY... | null | [
"iVBORw0KGgoAAAANSUhEUgAABIYAAAB+CAYAAABRYRpnAACHWUlEQVR4nOzdZ2Bb2Xng/f8FiQ52gmDvXWITi3obaTRFU12SbGwnTrzF6Ym9cfZN4mTj7GbTY2fTvNl4903G+2YTx/bMxDOert7YxN4LWAGCAFjQCeC+H0CChIpHM5ZGkHR+X0ReXFzcooe459xznkcCZARBEARBEARBuCtkWcYSgHEPrIcgKO62BUEQhDiSKEFSAlTowKQCCdExJAiCIAiCIAh3jcUvc23tfu+FIAiCILy/vcmQeL93QhAEQRAEQRAeJmOeyL8... | 0 |
math | grade-4 | compare-fractions-with-like-numerators-or-denominators-using-models | false | true | Which fraction is greater? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC5CAYAAAAS5EjTAAAn2UlEQVR4nO3df2yb9b0v8LebVHLCNrvnwJaigV2lhW46rZ9U25UK6eLojrPusC5uJ5ayHyeOWnYpV1qdApc0Q6qjsZZqsDg7GrCJLc7WbvFFapxRLoXeUoeGUjZNcZojUQ7N8pih/hgbeQKlyUVpff/wnqePXSfxj+eX7fdLQgQnsb+JP1vf/T6f5/uxJZPJJIiIiIiISBNLzF4AEREREVE5YcAmIiIiItIQAzYRERERkYYYsImIiIiINMSArfLKK6/g+9//Pm644Qb... | [
"1/4",
"1/10"
] | null | 0 |
science | grade-7 | compare-concentrations-of-solutions | false | true | The diagram below is a model of two solutions. Each blue ball represents one particle of solute. Which solution has a higher concentration of blue particles? | "iVBORw0KGgoAAAANSUhEUgAAAbAAAAEVCAYAAACBn7B3AAB4BUlEQVR4nO2deZwcVb23n1PV6+zJZE8mySQkgYQEENkXBWUPsoOKXIGLeLlevYC44lVAERFZRK/4Iioi4AIIXAUDBEU2QVYDSSQQsu+TzD69Vp33j6pTS09Plkn3ZKbnPJ9P0tPVS1V317d+6zlHSCklGo1Go9EMMYw9fQAajUaj0fQHbcA0Go1GMyTRBkyj0Wg0QxJtwDQajUYzJNEGTKPRaDRDEm3ANBqNRjMk0QZMo9FoNEMSbcA0Go1GMyTRBkyj0Wg0QxJtwDQ... | [
"Solution A",
"Solution B",
"neither; their concentrations are the same"
] | null | 1 |
math | grade-3 | identify-multiplication-expressions-for-equal-groups | false | true | Which expression describes the model? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACHCAYAAAAslC4OAAAmX0lEQVR4nO3dSXAb170u8A8zMZEgBHEQQElRWVXKSpQXXlm2XOWNfBdXdlVcWV3F2VtXXiZeXHuTvJ2HeB3z7VJJvVheRHeVKl4rKy9keaVbJUeiRIKExAEzibHxFgha3ZiHHk53f78qltkkiG4LH/59cE6f065Wq9UCERERERFpwm32ARARERER2Qkb2EREREREGmIDm4iIiIhIQ2xgExERERFpiA1sIiIiIiINsYFNRERERKQhr9kHoCdJklCv1+WvWq2Ger2OZrO... | [
"4×3",
"3×2"
] | null | 0 |
science | grade-3 | use-data-to-describe-world-climates | false | true | Which statement best describes the climate of Rome? Hint: Summers in the Northern Hemisphere occur in June, July, and August. Winters in the Northern Hemisphere occur in December, January, and February. Rome, Italy, is a city in Europe. It is located in the Northern Hemisphere. It has a mediterranean climate. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAK3CAYAAAC/cTiKAADjaElEQVR4nOzdeXxU1f3/8dds2feNELKREEJCIIQtEDYRQRQFWaxSN9SvX5fa2lbb2tYuP9va1S5u7dfWiluroqAQFpUtLEIASQiBBJIQyMKSkH2d9fz+CDMQEjTIJDPo5/l48CC5c2fuZ+be3HnPmXPO1SilFEIIIYQQQgin0Lq6ACGEEEIIIb5KJGBfhXJyctBoNGg0GsaOHevqcsTX0PLly9FoNIwZM+aKHyssLMxxPNv/abVaIiIiuPvuu6msrLzyggfYCy+8gEa... | [
"Winters have higher temperatures than summers.",
"Winters have much more precipitation than summers."
] | null | 1 |
math | algebra-1 | match-exponential-functions-and-graphs-ii | true | false | Which graph matches this equation?
\[ y=2(3)^{x} \] | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAVUAAAE1CAYAAABX+HN0AAAcjElEQVR4nO3de3AUdb738c/MkHtCopIEdZeAqGQDSDAKiVhA2OMKltRZYnlZD7Vy0TqyYO2p1T/EWgtPuSpWeahTW6x3RepYCx5EfQQXARXLtUyCBIYVfQZ4SIKrJExEhksgk2TSzx/jTBISIJee6e7J+1VlOd3T3b9vmJnP9O33G5dhGEZjq/T/zkinQlK7IQBAHw1zSVke6Zp0KT9ZcjUGDWPnSavLAgDnmzpcGnbwTHji8mRpXEY4cQEAfXMqJO1vlhpapQN... | 1 |
math | pre-k | one-less-with-pictures-up-to-10 | true | true | Count the dots in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFACAYAAACGDgu2AAAZSklEQVR4nO3d34tkd53/8Xf96B/V1TPdY3dnzPREXFTMOiE7QVFyo5AbvQnI+iWiN67XQbKJILh/wQpeGW+8EEQmEbMQMBDxwh83WVE2MdlhjQj+SMw4M+mema7uqf5V1VX1vcgomZg5NT8+XafqnMcDQm7CqU+/MiHPPn2qujIYDAYBAAAkUc37AAAAUCQCGwAAEhLYAACQkMAGAICEBDYAACQksAEAICGBDQAACQlsAABISGADAEBCAhsAABIS2AAAkJDABgCAhAQ... | null | [
"iVBORw0KGgoAAAANSUhEUgAABDAAAAFYCAYAAAClCwyGAAApU0lEQVR4nO3dW2xd930m7N8+cJObmxRJk5QsyYc2ab76iw2PhAQJfDEJEA+Q5EJAkAySL52LNr4qEGTcw0WD5GIGMaYHTNACaS+mwAQDtI7bejAGbMNFLgZOL9xO0nHi1EAc5BsnsSxFB5KSeCb3eS4kGVZsbVJcm3utvfbzAAIBQ17rx5fShv7v+q+1ChHRDQAAoC+63W5cakS8vh2x0Y5o+dc2wIGUCxHTpYj3TUYcq0QUQoEBAAB9c6nejX9eT3sKgHz58JG... | 0 |
math | calculus | describe-linear-and-exponential-growth-and-decay | false | true | How does g(t) change over the interval from t=2 to t=4? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAABvd0lEQVR4nO3dfXwU930v+s/s8+oJCQkkEJYwxsgRSALJGIPBxoFgYmzHYPfg+OTBrdPWaRK3ufe0J7cnzT3J9XXzOk3SG9dOc9KmttPbm5y4fmgMFpgH8RApIBCSQDLBsgAhAXpYaXe1jzM7O3P/WFZIBswuzI/RSp/365VXrEXz0Vczu7OfHc3OSrqu6yAiIiIiIkNYzB6AiIiIiGgqYcEmIiIiIjIQCzYRERERkYFYsIkoZYcOHcK9996LWCwGAPjlL3+JU6dOYcm... | [
"g(t) increases by 2",
"g(t) decreases by 3",
"g(t) decreases by 2",
"g(t) decreases by 1"
] | null | 2 |
math | grade-2 | find-the-next-shape-in-a-growing-pattern | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADhCAYAAAC9ZMGZAAAaFElEQVR4nO3daYwk513H8V8dXd3T03PsZHfWay/4GIEcx04CCphYgcQGJ0IIy0TiiEjeIBQiQKAokZAgIYI4RIACAglEuF4gIwIvEilEEAUrEHDinMJ2YicQr+3Y62XP2WOmZ/qoqocXs7Oe3Z2je7qOp576fqRI1u52Pc//eerp/PrpqmrPGGMEAAAAwAl+2R0AAAAAkB0CPgAAAOAQAj4AAADgEAI+AAAA4BACPgAAAOAQAj4AAADgEAI+AAAA4BACPgAAAOAQAj4... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAADhCAYAAAAJS2C/AAAfZElEQVR4nO3dbYwd133f8d883LkP+8g1uZRI2nogHNiyZCuBa9mCG8tqLDcIYqgBkjZo8qYI3LwoEgTOq9aO0ViukQRO0aIJ6rbpi0JF3DdO4Ri14QhOlMiWrdgwpVhyYosSLVFrcknuch/u7r3zdPpitdSS3F3e3TsPZ2a+H0AAteSdc/7nzNyd3z0zcx1jjBEAAACAWnAcp+wuWMktuwMAAAAAkDeCDwAAAIDaI/gAAAAAqD2CDwAAAIDaI/gAAAAAqD2CDwA... | 0 |
math | grade-7 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAPmElEQVR4nO3dfXBV9Z3H8c859+bcmxBCAgSSEIyhPBVEUCBUiNBIV2iLaxV3t7Jt13Wqsjutdae4dup0Z9Yu7VBtKcyOq1tq2W2LQ7cwu2JZcYWIPGlYlDSigi4YIBAEQkhIcp9yz/4RzTmxxTzde09y83795T1zM36HyZ187u98zu9n2LZtCwAAAEBCmF4PAAAAAKQTAjYAAACQQARsAAAAIIEI2AAAAEACEbCT7cUXvZ4AAAAAKUTATqbLl6Vly6TcXOnpp72eBgA... | [
"no",
"yes"
] | null | 1 |
science | grade-3 | identify-minerals-using-properties | true | false | Select the one substance that is not a mineral. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEGCAYAAAD2aACLAAC4v0lEQVR4nOz92ZNl2XXmB/7OfO48+fXrs8eUERmZyAEJgAAJEAUWWZRM1ZK11LKWdT/KqvQnyPpdjyVZt/VTd0tPXaUSuwaqSIpCsUiCIJBAYmQOkZkxh8/D9TuPZz6nH/bZOyLBZJEYAkigfBkc7uHpw/V799prrW9961va9ydZdqsEFYNLu7RL+wlslsD9BZyF0DDhS3Xxef3SsS7t0n46qxhwqyQ+nidPP69fOtalXdpPb9KPouzp5/RfzEO5tEv71bdL57q... | 2 |
science | grade-2 | identify-properties-of-an-object | false | true | Which property matches this object? Select the better answer. | "iVBORw0KGgoAAAANSUhEUgAAAKwAAADcCAYAAADtE0oZAABBlUlEQVR4nO29aYwl1133/znnVNVdu3u6e1bbM7bj8fbE2eyHkD+BLIpQXiBFEDkvWF4kARKUIPEilgCRRGACIouQIggkbAFEpCiKxAuEhVDI8/CEOM5ibCdOYnu8jGdsj2ftZbrvWnXO/8U5p+rc6nu7e8z0TF+7vtLte7u2e27Vt77n+/udpYQxxgD0ej1OnTrF6uoqaZpSocLVRhRFzM7OcujQIer1OgDCGGO63S5PPfUU119/PfV6nTiOr3JRK1SA4XBIr9fj+PH... | [
"rough",
"smooth"
] | null | 1 |
math | grade-3 | fractions-of-a-group-denominators-2-3-4-6-8 | false | true | What fraction of the shapes are rectangles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABKCAYAAACB4iNkAAAL+0lEQVR4nO3dTWzT9x3H8Q+xnYCNEztP20jSOIKBSLj0wJNUWlZtReqOLajHSoweijSN8XBtey1ldIdyGG3PE3THVaKTVrYhQcIVuxqCxTQGbXESO3b+zoOdsENw+kACTvL//36O/X5dg+3v76/P13z18+9vb3r8+PFjAQAAAHBFg+0CAAAAgFrCgA0AAAC4iAEbAAAAcJHfdgFlifQtSZIzl5MkhRqbJUn9HQes1YSNizwB5tF3ALDI+ICdzMZ1++HfFB+9qWQmrkI... | [
"3/6",
"1/4",
"1/3",
"6/8"
] | null | 0 |
math | grade-7 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines perpendicular? | "iVBORw0KGgoAAAANSUhEUgAAAF8AAABfCAYAAACOTBv1AAALv0lEQVR4nO2de1iUdRbHP6OIDhcRZSEK9NEn8ZIWK7trqC2sWmLZxSyw9MEbaqYmiRdKEBAqVEw0dUu8oIaC5t1SMw1bkUxTXK+o6wVILovgyC1gmHf/YGdCHQGZ9515B/j8xcwwv3OeLy+/Oe8553dGIQiCQDMmoYWpHWjKNIvfQEpVRQav0Sx+A8g8n05i6BKD12kW/zHZGBTFgsGjRFnLQpRVmgD5GbdZMWYmv126BkAba6XBazaLXw9SEveSNH8JZfeKdc95DBt... | [
"yes",
"no"
] | null | 0 |
math | grade-1 | addition-sentences-up-to-10-which-model-matches | true | false | Which shows 4+3=7? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAXYAAABKCAYAAACvkX8HAAAM/ElEQVR4nO3dTYwb533H8e8zM5zh6+5KK8uSNlAEx5KSOHJsK4UdpyhQoFWaIj4ZOcQofGwubgEBRW/poUBRBAXSS9Cmx/ZQtD3GqVOkl6BokUCtECRWkEoWBFWJ9b7Scvk+5DxPD7OUliuKy+HOM5yl/h+A2BeSz8yPwPOf4TMzzyhjjLkdwtU2NCIYGIQQQuwjnoKaCyfL8LwP6nbPmAub814tIYQQaXh9CbyP2vEfR304XYmrvhBCiP2jEcHlFtwK4UobnM1... | 0 |
math | grade-2 | write-subtraction-sentences-to-describe-pictures-up-to-18 | false | true | Which subtraction sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAfQAAABkCAYAAABwx8J9AAAad0lEQVR4nO3dfXTT9b0H8HeaJmnTtKHpE22hhaYFDmgRpDxIi7j5cN28q4I6J7rhdfdscJy7O/ds003vdo/3TM7m5uY22TxXZbr6sCvbQXFM8DigYKFFHqpQSpPWFvqYtDRtSp6b+0eaX56TX9OWtuH9OmeTJL+H75s/Ph++v0eJ2+12g4iIiGa1pOkeABEREU0cGzoREVECYEMnIiJKAGzoRNewC7q26R5CiHjGxBxThzlmlmhjSr6K4yCiGWRXzW7U1Z/EutUrsXX... | [
"12 − 6 = 6",
"13 − 7 = 6",
"11 − 7 = 4",
"12 − 7 = 5"
] | null | 3 |
math | grade-1 | compare-sides-and-corners | true | false | Which shape has more corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALgAAAC4CAYAAABQMybHAAAEKUlEQVR4nO3cPW4bVxiF4W/0F8Cx4yoJjFQpkizBC8lSsi4DXod34DiFGkFSacmWIFLEpGAmzg8My7KGc+fM81QcDHFxihe3Itj1fd+frar+uKq63FTd9gWzddBVPdmv+ulR1fdHVd3ZTd+/uph6Fjy8599UHby52j48O6r65ett/TBXl5uq1++rTldVv19V7V3cbl+ImwRP9rctV1W921Ttbf7xAhIMLa/7qr1pp8C4BE40gRNN4EQTONEETjSBE03gRBM40QR... | 0 |
math | grade-7 | nets-of-three-dimensional-figures | true | true | Which figure will this net make? | "iVBORw0KGgoAAAANSUhEUgAAAMYAAADNCAYAAADjXA+eAAAPcUlEQVR4nO3dXWhbZ57H8a+XOuAtsVyzCcw6ZGQIbpnE1KHEezEdjpPCrum0YxkWBkJC5e2F3TAgubDEF00td7IkZqGRoOTlotgmITDLgo+ns4N3wY0E7cU424127LB5A6vBLkMCzrFKENgX2Qv7KLb02JYsyfLL73NziGyk/wH/8j/PeY6ep+LFixcvEJEV/qrcBYhsRa+UuwDZXaLRKBUVFUSj0fS/lx9bWlqMR8uyNq9IoEKXUlJKjuMwNDRENBrFtu2C3qutrY3... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUIAAADNCAYAAADNPHklAAAZe0lEQVR4nO3df3BUZZ7v8XeEBCNDuuUKlgYh3GGBIsS04wR/oNMNbCmOsunUjjMuo5fmWlthXLaSWHUv1B0dmtGZgXVXOlV7Ee4ti86VsWpn7hSdwXXRvYGOvzfRsSVkRMgsDSSOggUnjUzW/pHcPzrdkh9AIN05nZzPq8o6SaC6vw9tPvU953nOc/L6+vr6EJEB8vLyzC5BxtA1ZhcgImK2yWYXINYSDAbJy8sjGAymv7/w6HK5hj06nc6xK1IsJ0+nxpJNhmH... | 0 |
math | precalculus | determine-one-sided-continuity-using-graphs | false | true | Is f(x) continuous from the right at x=0? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB6g0lEQVR4nO3deXxU9b0//tfsM5lJSEggCYEEIhANJCAYkU2hWLVirWAtaq1i1YpttZv19udtvbetl6+9VXtrXVCrgq3eVm5dKhgpymoQIhECCQghQPZJMtlmnzNn+f0REohsCZwPk4HX8/Hw0WYy58U758ycec9nPuczBk3TNBARERERkS6MsS6AiIiIiOh8wgabiIiIiEhHbLCJiIiIiHTEBpuI+li3bh1Gjx6N+fPnAwC+/vWv45133jnhfaPRKK644gps3br1XJZ... | [
"yes",
"no"
] | null | 1 |
math | grade-3 | interpret-line-graphs | false | true | A hiring manager showed job applicants that the wage earned by his employees consistently exceeded the federal minimum wage. In which year was the minimum wage $2? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFtCAYAAAA9PB1eAABX8UlEQVR4nO3deXjU9b33/+esmZlkJslkgSSEHRJ2QVYVZHFBEYTiEtTex6We+3Q52HO1t/d9t+euPdp6en7Hnru0tXft3VYvW70tFIJaqVo2gYBKEWQnQCQkkBCyzWSdySy/PziMphk0wEwmCa/HdXlpZr7L+/vJ1+SVz3y+n48hHA6HERERERGRmDAmugARERERkf7EnOgCpG/YsmULr7322iXfnzRpEl/72teu+PiHDh3ipz/9KU6nk+eee+6Kj3M5/uf//J/U19f... | [
"1990",
"1995",
"1980",
"1975"
] | null | 3 |
science | grade-4 | identify-vertebrates-and-invertebrates | true | false | Select the invertebrate. Hint: Insects, spiders, and worms are invertebrates. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAACrb0lEQVR4nOz9d7htx13fj79mZpVdT2+3V+mqy5Ys2Zbl3ikGTDfNoduEGgIJIYnpxphACJCQUAMxNmDcsHHDBXer2ZIlS7rSlW4vp59dV5mZ3x+z1tpr77PP1XWcP76/52HOs5+zyyqzZt7zmU//iLs2rT1Wh6biX9q/tP9PtpaGRzpwPoZpD+6cct/LfwHuv7T/r7emgmN1976tB9/LfwHuv7T/f2g5ThM7+M4bd+CjjzxRvBdCFP+tyL6z484aNMPggPKx+TV... | 2 |
science | grade-8 | use-punnett-squares-to-calculate-probabilities-of-offspring-types | false | true | In a group of cucumber plants, some individuals have dull fruit and others have glossy fruit. In this group, the gene for the fruit sheen trait has two alleles. The allele for glossy fruit (f) is recessive to the allele for dull fruit (F). This Punnett square shows a cross between two cucumber plants. What is the proba... | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD6CAYAAADUdTPBAAALGElEQVR4nO3dT4ic9RnA8Wc2s+tkN8kmNGzSwpZscU2h1mLdkEPExdgiaEVbqJSw5FCQQlTMvdhDG0Q8WA/1Ih6NBUEkFYq2JGJBVJicUg09BErinyZNmu2ajInZzdtD4mxCTDXu5H1nnvl8TrOTd3ceeC7f/Pad2VpRFEUAAAApDFQ9AAAA0DkCHwAAEhH4AACQiMAHAIBEBD4AACQi8AEAIBGBDwAAiQh8AABIpF71AHx158+fjz179sS+ffvi+PHjMTAwEHfffXd... | [
"2/4",
"0/4",
"3/4",
"1/4"
] | null | 0 |
math | grade-8 | identify-reflections-rotations-and-translations | false | true | Look at this shape: Which image shows a rotation? | "iVBORw0KGgoAAAANSUhEUgAABbAAAAC3CAYAAADD5XikAAAScElEQVR4nO3dX6xdVZ0H8F/LhVqvIJpa7t4GeCiZaGz5dwwmCv4BRDrqJCai1Aclo4ypOJbIg2BJxKQvxjAZMkEcHjCC8aYPtEJNDcIYEgjayG6t5pLItCpo9mlBCQoVDO2983DpsaUlY8ta56x97ueTNHef25Pv/mV3nUP7vZt1FkXEXAAAAEnMzfnrNQAApLJ41AMAAAAAAMDRKLABAAAAACiSAhsAAAAAgCIpsAEAAAAAKJICGwAAAACAIimwAQAAAAAokgIbAAA... | [
"C",
"A",
"B"
] | null | 2 |
math | kindergarten | one-less-with-pictures-up-to-10 | true | true | Count the boats in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAA//ElEQVR4nO3deZRc133Y+e+t5dWrfe2let+AbqwESJACSVEQRdGWLMeKbMlOxnHsOItPkvHMZGJPlslyspwzJ3POJDNjn5x4kni8yRPFtlaSjkRKFCkuIBYuABrd6AZ6X6tr318t784fVd1AYyFACkt1437Okdisqlf93rv44f54732/K6SUEkVRFEVRFEVR7grLgz4BRVEURVEURdlNVIKtKIqiKIqiKHeRSrAVRVEURVEU5S5SCbaiKIqiKIqi3EUqwVYURVEURVG... | null | [
"iVBORw0KGgoAAAANSUhEUgAABOwAAAB+CAYAAACXpI7eAAB5UUlEQVR4nOz9d3hcZ4Lf+X7PqTqncgZQyIkgAYJZonJLbHXu6ZnpCd0z452e4LHX2XfXnvG1Z6+9Xtv7PHvXz73eMGNfj9N4Qo8ndlLo6VZ3K0sUgyiRBAkCJHKsnMOpqvPeP04BBBhESmIoku/nebolAahCVb34Vf3qrfe8RwEEkiRJkiRJkiTdEkII1gy4WIJ8A+qybUuSJEmS9AHsCvhssNMNUd36moKcsJMkSZIkSZKkW2atKjiWu9u3QpIkSZKke9Fjfuj... | 2 |
science | grade-8 | use-punnett-squares-to-calculate-ratios-of-offspring-types | false | true | In a group of koi fish, some individuals have red eyes and others have black eyes. In this group, the gene for the eye color trait has two alleles. The allele for black eyes (e) is recessive to the allele for red eyes (E). This Punnett square shows a cross between two koi fish. What is the expected ratio of offspring w... | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD6CAYAAADUdTPBAAAShklEQVR4nO3de2zV5f3A8U/LaaE3IL3ghRWKMIJRcYg4L4OCU7NNlyWQGR3eMjdjmDFx+3PJ/GeSmWyLc1sky/gtzi0aJWxuUecydaHzxlAji6gbTgQKUigg9EY57fn9gVYZSOnp6YWnr9dfJ+15nvOE5iTv8/Cc77col8vlAgAASELxSC8AAAAoHIEPAAAJEfgAAJAQgQ8AAAkR+AAAkBCBDwAACRH4AACQEIEPAAAJEfgAAJAQgQ8AAAnJjPQCOFp3d3csX7487/G... | [
"2:2",
"1:3",
"4:0",
"3:1"
] | null | 2 |
math | grade-4 | multiply-unit-fractions-by-whole-numbers-using-models | true | false | Which model represents the product 3×
1
5
? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHoAAACOCAYAAAD+WhzrAAAOrUlEQVR4nO2db2wT5x3HvyEUpaHNudKaZNPAdssfdU3wtS8AAS2uWnVtCnNoKwEabRLRPylQEeAFtBXYlBUJNlZQASUSsFRlIhFbaiBQ1kr1ZWR0ZUM5nISJQblLGBsNVLaBUMpgz14cz8VOnMRx7p475+4jRZDYfp7H97nn9zy/u+fusggh5NIt4NwN4Nod4DaBzQhgdBZwfzYwMRcoGANkXfqBkBNXjW6WjZ5MywNGn72h/PLjMcDkscpeYJP5XLsDnOkG/nM... | 0 |
math | grade-6 | compare-area-and-perimeter-of-two-figures | true | false | Which figure has a greater area? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHkAAAC4CAYAAADHTkNYAAAQpUlEQVR4nO2de1BUZ5qHf6dv6WYQabkIgoJE5KZyE1vDEqW7E8QJKpmYmprUuKlUbU1i4aqpndk1NbVxht2d2jU1M1VjMsXUGDekcBI3CqIY0KghDJMIQWyRm1gERitkMjTTg0m3cuzu/aPtDoYGmz6X79yeKiuSbs557ae/c/m+930P5fV6vV9MATecwG03cM8LBZGjoYAFaiA9AlisA6gv7nq9HZOkw1LgClMUoBly+n5I1AEZ3/F9AxTEzW03MPg1MDYFXHc... | 1 |
math | algebra-2 | classify-variation | true | false | Which equation shows direct variation? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAAA6CAYAAABS36B3AAAFv0lEQVR4nO3dX0hTbRwH8O+z6Sa6OQp73+wiMXKvIHjMKKNYZULTCwORurG7BI3IuimygpCIwJuyP14EMoINYuVFe+kPTfuHFU6JvDDN3iiyMm2Qrm2lr/a8F2vRXjedueecjv0+cJA95zlnvwe+PufPjo5xzvn7CeCfIPBpCpjkIGTOkhhg1AI5qcCfOoC9H+fc41O6LLKQFKUDSc+DoReZOuCvtFDqCJmrT1PAswAwNAEMBAGNbzK0gkJF5sOoDWUIAPxTgGb... | 1 |
math | grade-3 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines perpendicular? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAAB7CAYAAACCYiUaAAAHM0lEQVR4nO2dW2wUVRiAvyHA2gvrVrFRFEpRi3IpRYFyFYTExHti46UENcIDGhONaFREokSi1cQQJF4TUBNJwBhDRMUXG6AGLRhS2oJSwV4AFRA7FVZAiOPDdrc7u0vZ3ZlzZrb831PbTHpO+p2Zb3Z2tmNYlmUh+IZ+Xk9AsCNCUtDQ2ujZ2CIkBfPfWogZNj0ZW4QksLm5jsa2Zp75cLEn44uQBHbu3wnAR99+wob6jdrHFyEJHD8Zjn39yMqFtB1p1zq+CElgV3f... | [
"no",
"yes"
] | null | 0 |
math | precalculus | identify-graphs-of-continuous-functions | false | true | Is the function f(x) continuous? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AABx4klEQVR4nO39e3yU5Z0//r/mPJPj5JwYSABRNMhBEBABwYVWlGoL1tXuWut2dx89293Prr8et6cPWj/b07Zrrfa7XbVrt25Zaa1gQCxIMIhIhEgCKkbJgTBJJpnz4b7vmfv+/REnJRBgQq4rM0lez8djH9tM7nnlbZi5876vue7rMhmGYYCIiIiIiIQwZ7oAIiIiIqLJhA02EREREZFAbLCJiIiIiARig000hezevRszZszAhg0bMl0KERHRpGXiTY5EU8e6devwyU9... | [
"no",
"yes"
] | null | 1 |
math | grade-4 | elapsed-time | true | true | Look at this clock:What time will it be in ten hours and forty-eight minutes? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADICAYAAADSmpa3AABRMklEQVR4nO3deXyTdbb48U+WJmmWtlDatCwtSFucAdkUxRFwQxEVxxEQXGbk5za/K6g4mzriLFcccRYVlLn3dwUHr4OAgjoiiwOiAo4gDrsotGxladJSaJonbZK2ye+Ph6ZNk+5LWnrerxevNt9nOyn54/Tpec7RBIPBIKJ9VBaBLxd8eeA/DQEXVCkQUGq+1v6+qgQ0etAlgtYKOqv6tfp7jQV0NtD1AENvMF4EhoGg7xXrdyqEEEIIIc7TSILdWpXgO6Im0d7zyXR... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA7gAAADgCAYAAAApDMpcAABsBElEQVR4nO3deXiTVdr48W/SNkmzdKG0aUFasKU4sqMsKuCGIiqOIyCIOvK6zYws4qw6yowO4DKLCsrM+3sFxUEEFJcRQRwQFXBkcdhFoUVKWbpAoWmSNk3b5PfH06ZNk+5Zutyf6+Jqc57tTsyp93mes6gAN0IIIYQQQoiAcLvd5DshuxSsVVAp2bYQQROpAlME9NWDWQMqpIErhBBCCCFEwOSXu9lVEu4ohOh6RsZAZLiDEEIIIYQQojPJKlV+pmign0F5uiS... | 0 |
science | grade-5 | animal-adaptations-skins-and-body-coverings | true | true | Fennec foxes live in the Sahara Desert of Africa. The fennec fox is adapted to be camouflaged in a sandy desert. Which animal is also adapted to be camouflaged in a sandy desert? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOy9d7wdRf3//5zZ3VNu7+kJJCGEEJLQOwKChCpIkSqCBUUE5UdHUcAP+gWVDyJVkCJFPiAoKEiACAIBAiSEXkIK6fX2U7bM/P7Ycvace5Nc8AJ+/Ozr8VhyzpbZ2dk5l9e85/V+jdBaa9d1UUqRIEGCBAkSJEiQIEGC/52QUmKaJsJxHJ2Q+wQJEiRIkCBBggQJ/vdDSolMyH2CBAkSJEiQIEGCBP8ZUEohP+9KJEiQIEGCBAkSJEiQYPCQEPwECRIkSJA... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9Z3gc5f39/ZmZLeq9d6tYsop776baxvRuOiEkEBISfrSQAEkIgYQEQiihhdA7mGoMxsbGuMqWLRdZvfeuXWm1ZcrzYnZXK1lgkTjt/+y5rr20Oztz91nNuc+3CJqmabIso6oqfvjhhx9++OGHH3744cf/JkRRxGAwIAjCf7opfvjx/yREP3H2ww8//PDDDz/88MOP/32oqoosy//pZvjhx/+zEP3E2Q8//PDDDz/88MMPP/7fgP/Z3g8//nUQ/9M... | 1 |
math | pre-k | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 9 − 2 = 7? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdoAAABKCAYAAAAc9ZVYAAATp0lEQVR4nO3dfYwcd33H8fdvHnb3du/B9p0fE8c2jp0HbIjz4DjQNg0NJQGCShM1bQLYFfSPVlVpC2pLK0CVKpCqPiC1PIgHYQOhSnEQJHJLURseEmLHgdhgJyF+iO3E3Nm+O/tu9/Z2d55+/WNun+5213t3M/Zl/X1JkW/3duZ+n9VGn5nZmd8orbU+48CxScj54GmEEEIIMUeWgh4TNqRheQLUmZLW+7OXe1hCCCFE57m9F6yjk+GDlQm4LhO2sBBCCCHmJuf... | 0 |
math | pre-k | triangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAF00lEQVR4nO3dT08bVxTG4dfmz4Imrbpoq66rph8h237qqhJiwYZKSRZdQIC6WEJVYiKQkCG2hGNnurgyGGN8x56Zc885930k1ICDMkW/GM+LPWkVRVFcjIB/h8DtBBgXIKpsswW83AB+3QF+2gZaF3dF8eYm9WGRZ6+/BTY7w/DOz9vAb9+EComqup0ApwOgNwL+GQLtm3G4gZFRnV5uhKYA4PMEaE9mbiCq07SpLwXQTnsolAuGRiIYGolgaCSCoZEIhkYiGBq... | 0 |
math | grade-1 | match-digital-clocks-and-times | true | false | Which clock shows ten o'clock? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMIAAAB5CAYAAABr7P6HAAAIdElEQVR4nO3dPWwb5x3H8S/ll8Fx7jrEbVOIQD2kaX1EpwJBuNQwklQe2sGSydmO5VVUkzWkSa+xXgAvjYR0NV1JQztIQF+ALkzhbMGdUccdWtBoXDsocHIs1y/ydaBPJeVa5j3k3Yni77PYhMj/c5Tux+fh3fPcZYIgCG4/gr9twL1NeBIgsuftz8Cr++CNQ/Cdg5C5/TAIrq2nvVki6XnLgv03N1oPXj8Ib77SSonIXndvE27ch68ewZcbMLL+pPUDhUCGyav... | 0 |
math | grade-8 | apply-addition-and-subtraction-rules | false | true | The number line shows two unknown numbers, w and x. Is w–x positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAIiUlEQVR4nO3dW2xT9wHH8e9xYufipCGFpFwKoQOpW5QuMEJIKCo8TKs0FLYgug6VRSAmNBDrxh7gZZeHZkg8dJpakECjmoQgoHYKI6ztVlXaHKotFwKEWaSVNiUBGqqEkGa5OE5inz04NmHkxuL45Ni/j2TFx87DTzo+9s9//8//GKZpmojYWFVVFYZhsHPnTqujSIxonyce7XMRsZNkqwOIzNadO3esjiAxpn2eeLTPRcROZlywR0ZGaGpqor6+ntzcXI0iiNjRUB8... | [
"positive",
"negative"
] | null | 1 |
math | grade-7 | similar-and-congruent-figures | false | true | Are these shapes similar? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACqCAYAAACXpjjmAABCi0lEQVR4nO3de1zO9//H8UclpUJHJadSc8rZEJtDZjTETBs7YsOa8ybNaakc5jyMOW1z2InJdwxTm/2EETFUYg7JIXV1QKXS+fr9celSVE5XXR1e99vNra7P6Xp9ft/b7+q59/X+vF86SqVSiRBCCCGEEEIjdLVdgBBCCCGEEJWJBGwhhBBCCCE0SAK2EEIIIYQQGiQBWwghRKn6+uuv6dOnT6Fto0aNom/fvoW2jRgxAi8vr7IsTQghSkU1bRcghBCicrOxsSEhIUH... | [
"no",
"yes"
] | null | 1 |
math | calculus | determine-continuity-using-graphs | false | true | Is f(x) continuous at x= – 2? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAACBiElEQVR4nOzdeXwV9b0+8GfOnj0hCQkEEnY0mAQCAUFQLO47WAv1Z63W9la7We+9bb3W2s1S22p7a9Xaxbp0ua1cUYsYEGVtUEICBAh7gIQAWU7Ws87++yMml8iWwHwzWZ736+WrzUnmOQ8zOXM+ZzLnjGSapgkiIiIiIrKEw+4CRERERESDCQdsIiIiIiILccAmIiIiIrIQB2wi6mbt2rUYM2YMbr75ZgDArbfeijfffPOMP6uqKi6//HJ89NFHfVmRiIioX5P4Jkc... | [
"yes",
"no"
] | null | 0 |
science | grade-2 | predict-heat-flow | true | false | Two solid blocks are at different temperatures. The blocks are touching. Which picture shows how heat will move? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAUiklEQVR4nO3deZgcdZ3H8XdVdfd0z5XJOTOB3CQEEkg4NCD4LKzigorHPq7gXu4jPOqqPD7ursoDsuwCm0cRXVZlXXSFfZDgeuyjIIggKCghSG4IyeSeHExmMpnMZGb6rmP/qJ4zA5kwPdXVM5/X8/CQOVKp7l/Vp36/769+XYbneV5rDvakoMcB20NEpCgiBtRYsLgS6mNgtGY97+XuUu+WiEx0q2ohsjvlf9EYg7Or/DQSESmGHgd2JuFIDnalwOy2/R8obES... | 0 |
science | grade-8 | identify-rocks-and-minerals | false | true | Chalcopyrite has the following properties:
solid
found in nature
pure substance
metallic luster
fixed crystal structure
not made by living things Is chalcopyrite a mineral or a rock? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAADAPUlEQVR4nOz9d5Rt+XXfB35ODjfHyvnl/Dp3A40GGgQYRSVKo7E00hIlkWtM04tKXrM0ksYKttdYM2NpjU3RHksMEkmJUUQkCHQCutEZL8fKuW7O59yT549zX3UDBJqQGyAC67tW9etXVa/qhvM9+7f3/u7vFqIoijjCEY7wdSF+px/AEY7w3YwjghzhCO+BI4Ic4QjvgSOCHOEI74EjghzhCO+BI4Ic4QjvgSOCHOEI74EjghzhCO+BI4Ic4QjvgSOCHOEI74Ejghz... | [
"rock",
"mineral"
] | null | 1 |
science | grade-2 | predict-heat-flow | true | false | Two solid blocks are at different temperatures. The blocks are touching. Which picture shows how heat will move? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAYfUlEQVR4nO3deXAb93338ffiIkiClyjqIHVa9+lIlKzDki3bOWo7rlPXdu2ksdv0cZyZdJ5nkkmbJ32eJpP26TTupG06zZOnjhM3TtIkttPYku1aki0fsiTrpG6Jsqj7IsUTIEji3ucPkLB4SAIFaBckP6+ZjMMFdvcLLfDB7nf3hzVM0zTrI1DXCe1xiJmIiGSFy4AiJ8wogLEeMOrDprkzYHdZIjLcLSsG1/HO5B/jPTCrMJlGIiLZ0B6HYx1wKQIfdYIjEEs... | 0 |
math | grade-1 | compare-clocks | false | true | The clocks show when some friends ate dinner Thursday before bed: Who ate dinner latest? | "iVBORw0KGgoAAAANSUhEUgAAArIAAACiCAYAAAC9MC4yAAA3NElEQVR4nO3dfXxT9f3//0fSNE2b9AJoaYtAuSh4VVrKBHVAAQHReYFuOnSfOavg5uZVcTpxykc38GK/6YSh/vxs4qpsgCJOxYlXKLR1oigtBRVogbZcpOkFNCRt0ybp+f4RG6gtNAlpc9K+7rdbb22Tk5NXS5+c1znnfd5HoyiKgghfSjM49kJLOTjKPJ9dFnBbwW2HNju4jwFaiBgAWhNEmCAiHiJTwZAO+nSIGu35WhMd6p9IiPAnuRRCfSSXfZJGGtkw09YEjVv... | [
"Deb",
"Caleb",
"Bella"
] | null | 2 |
math | algebra-2 | domain-and-range-of-exponential-and-logarithmic-functions | false | true | What is the domain of this logarithmic function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABi/ElEQVR4nO39f3yU9Z3v/z8nM5PfCQkJJCGSACIoSBAULQhVF6u2trbQ7Wp72mq/7re2p649Pbdvz+l3P93ubo8fTz9nt91P3bbb9mxX7bnt59ujW3VXMFAsKCwoSIQAARED5AeQH5NMkvl9zcx1ff+ISQmCJnC9nRl53G83bzKTuZ7zynXNXPO63rnmenscx3EEAAAAwBV5mS4AAAAA+DChwQYAAABcRIMNAAAAuIgGG8AE9fX12rVr1/jtEydOaMaMGero6MhgVQA... | [
"all real numbers",
"$\\{x \\mid x>-1\\}$",
"$\\{x \\mid x \\geq-1\\}$",
"$\\{x \\mid x<-1\\}$"
] | null | 1 |
math | grade-1 | rhombuses | true | false | Which shape is a rhombus? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAIJUlEQVR4nO3dz08UZxwG8GfYFbIWbIFKEaSHJqhpIgcxwdCiPagXNVgP/o/loBj1oh5U1KARD5g0Ak2bFHelWsCwyIYtk+lhQdd1f8y7O++8877f53NSQfweHnfnnXnfZ70gCIKVIvDHFpD3gZ0ARC1Le0BXChjeD3zXDngr20HwbMP0WOSysQNAemmr9JtD7cDRr0opJGpV3gcWPgBvisDiFtC2sVP6AkNGUepKlTIFAJs+0OaXfYEoSnuZ+i8A2syOQlIwaBQ... | 0 |
math | grade-2 | more-less-and-equally-likely | false | true | If you select a marble without looking, which color are you less likely to pick? | "iVBORw0KGgoAAAANSUhEUgAAAOoAAACcCAYAAABx7zeSAAA+7klEQVR4nO29e3Bd1X33/Vn7XKSjmyVZwrYElnEMvmCcACZAEkRJAnabJhiTQsmTK52nTpM+6SRMJySBpu8zXJKZlkDaJ6Vkmobw8oZMnoSQzhRIoCEGc3eB4NgYHIwvkm0kS7IlHZ3L3uv3/rHWvh3JtmRLOpJ9vjP21t5n39bav+/6XdfeSkSECiqoYEbDKfcNVFBBBcdGhagVVDALUCFqBRXMAlSIWkEFswDJct9ABScXdO8gelcvum8Y3TeEPjgE2QJqTganuQ7... | [
"black",
"pink",
"neither; black and pink are equally likely"
] | null | 0 |
math | precalculus | determine-continuity-on-an-interval-using-graphs | false | true | Is the function f(x) continuous on the open interval ( – 5,8)? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAACErklEQVR4nO3de3xU9Z038M+ZayYzSSb3hEACiKJBgnJRQUAt1Eu1tkBdbVetXbeVbu+7T/u41vZ5uo91u8/WWl21ai/e2m5XH1FXMFAUBBqqSMQAARURQm6TZJK5X845M+c8fwwTEwFJ4Pw4meTzfr36qplkvvPlnJkzn/nN7/yOpOu6DiIiIiIiMoTF7AaIiIiIiMYTBmwiIiIiIgMxYBMRERERGYgBm4iG2bRpE6ZOnYprr70WAPDZz34WL7zwwnH/VlVVXHLJJXj... | [
"no",
"yes"
] | null | 0 |
math | grade-3 | reflection-rotation-and-translation | false | true | How has this figure been transformed? It has been... | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAG+ElEQVR4nO3dQUwUZxgG4HeWpaAoLAeRQKrFRAhFJcG4HpQ4CvaiJNjIzaBcvOC96mntQTz1Ur00aUDSW00gKV4qaC32gsFsthpsm0IkAYsXFqkRlN3pgS5R2GVndnZn/p3vfRIPbv79/tnd/92ZnRk/tWPHjhm6riMbHj58CMMwwHqZ13vw4EFWarlN13Wl32dp9fy6riMUCmWl4LVr12AYBuvZqOcVXFdq1fNlpRIRKY1BJxKAQScSgEEnEoBBJxKAQScSgEEnEoB... | [
"reflected",
"rotated",
"translated"
] | null | 0 |
technology | grade | font | false | true | Identify this font type | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABQCAYAAAAwa2i1AAADsklEQVR4nO3cMW6rMBzHcfP0jhBlygEyVZVyBWfolItkq6rmCEYZ24tk6gBXqFT1DJmq3oEur8iv4ABNcIDf9yOxUIgdnF/540CSoigKA2DS/ly7AwD6R9ABAQQdEEDQAQEEHRBA0AEBBB0QQNABAQQdEEDQAQEEHRBA0AEBBB0QQNABAQQdEEDQAQEEHRBA0AEBBB0QQNABAQQdEPD32h2Ykvf3d/Px8VFZP5/Pzc3NzRV6hL6NZswLXIy1tjDGVBbn3LW7hp6MZcw... | [
"Arial BT Light",
"Serifa BT Light",
"Fixedsys",
"Variant Rounded Bold"
] | null | 2 |
math | grade-4 | fractions-of-a-whole-word-problems | true | false | Alice plays the trumpet in her school's marching band, The Marching Tigers. The Marching Tigers always put on a big show at halftime during the last football game of the year. To plan the show, Alice's music teacher draws a map of the football field and divides the field evenly into 6 sections. Which fraction model rep... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAU0AAABKCAYAAAA/ggbIAAACKUlEQVR4nO3Xu20UUQCF4TPrR2BeCQJRABBQAIFbgA6ogIKogAqAFkjICXjkGEFkG0sYry7BYAlE4oMw60Xfl+yOZkY60b93pzHG2DtO3h8lB8vkZASAHzan5MpGcnsnubmdTHtfx3i1v+pZABff/avJ5ruj+eLWdnL30lxUAGYHy+TNl+TDcfL2KFnsn8w3BBPgd1c25j4myeEyWSx/ugHA7077+G0ki9VOAVgvoglQEE2AgmgCFEQToCCaAAXRBChsti9MD16... | 1 |
math | grade-4 | identify-parallelograms | false | true | Is this quadrilateral a parallelogram? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABQCAYAAAAjrwKZAAAHgElEQVR4nO3dy4/VZxkH8OfADPRGL1h6AYWWQqlc7AUrFGKK9dJom2pba7TeqAtXro1/gTs3ulZb25g0JgiWtppoL1EuapqZMkMFJMTYzgwa7NSBUobWOS7G+v6GDeec3/s7v8PM57PheZPJ7302ZL6Ld56n0Ww2mwEAAGQxr+4GAABgNhGwAQAgIwEbAAAyErABACAjARsAADISsAEAICMBGwAAMurr2k07vhcxejBi0ZKuXQm04dSJiGtXR3zxB3V3AgAXtEZXFs3... | [
"no",
"yes"
] | null | 1 |
science | grade-4 | compare-properties-of-materials | true | false | Which is the most flexible? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AABKRElEQVR4nO29eXQc133n+6mq3nfs+0KAIEiA+yJK1L7asiJHiRc5ie3EOXFmzplMZuKTvMky72Ty4vdeMieTF8eJ4ziZxE7sOJIlS7ItS6IkipK4U9w3LMTeWLsbvW9VXXXfHwWABAnuENGU8eHBAdhdXXW7+1u/e+/v/n6/Kx2OC9HuBq/CMsvcVpI6dKdhXIUSC9wXMB+XlwW5zFLhVaDdbf6d0i88Li8LcpmlZFZ/mrjwmLw0TVlmmSuzLMplio5lUS5TdFi... | 0 |
math | grade-8 | model-and-solve-equations-using-algebra-tiles | false | true | Which equation does this set of algebra tiles represent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABiCAYAAABqHaQ/AAAJwUlEQVR4nO3dT2iU6QHH8d87M2msk2yyjRn/pWtVpE3cLU3aRLCoi1Ton0MpY2ELYi9SvEgv8WJdQiwouXnJYcHtrXSVDZ5sSyXQaKk0lri7xaRL1GZYjeMkbUo0MWLeeXrQChLBjD7vvO/z5Ps5DuH9ju/l+SVO3gTGGCMAAAAAVqTifgMAAACATxjYAAAAgEUMbAAAAMAiBjYAAABgEQMbAAAAsIiBDQAAAFiUifsNAEkSlgZk5sasXzfItiqdy9Oj91o9AIAbgv8... | [
"3x+9=18",
"3x+3=15",
"3x+3=18",
"3x+9=15"
] | null | 0 |
science | grade-3 | compare-properties-of-objects | false | true | Which property do these three objects have in common? Select the best answer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADQCAYAAAByQhWRAACcrElEQVR4nOz9d5hcV3qfi75rrR0qV+eEnAgQzOQwDidxsjRBsiRrJI8sSzr2tR/ZPvfY1z7HR9Z1tmXd6/v43ONjX8mSbVl55JFmRpODZoZDcoaZHGaCRCABNNDo3F1ph7XuH2tXd3WjG0AD3WiE9T7P7qqusGvVrl27fuvbv+/7hDHGADSbTUZHR5mdnSVJEhyOzcbzPCqVCsPDw+RyuQ19Lbf/O6403P7vuJ65nPu/w3EtIowxptFo8Oabb7Jjxw5yuRy+72/2uBw... | [
"yellow",
"sticky",
"salty"
] | null | 1 |
science | grade-6 | compare-thermal-energy-transfers | false | true | Two friends bought phones that cost different amounts but had identical batteries. After using the phones for a while, both friends had to turn them off to let the batteries cool. This table shows how the temperature of each battery changed over 5minutes. During this time, thermal energy was transferred from ____ to __... | "iVBORw0KGgoAAAANSUhEUgAAAvgAAABfCAYAAACdpLOcAAArp0lEQVR4nO3deVhU1f8H8PcMAwybIOIa2QA/Ng1RURJTKbASszSkkFi0Qn2+bqC5EeaCiFT2C0vUX4Hm1w0XxCQttVxy30hR6OsCiIa5oCDbMMMw5/cHX0bGYeDOMDA4fl7P4/PUueeee86Zcy6fuXPuvbzBi0oYCCHkObNxmjnCV1XpuxqEPNNoHhHCzYnFNm16PH6bHo0QQgghhBDSqijAJ4QQQgghxIBQgE8IIYQQQogBoQCfEEIIIYQQA0IBPiGEEEIIIQaEAnx... | [
"each battery . . . the surroundings",
"the surroundings . . . each battery"
] | null | 0 |
math | grade-7 | changes-in-mean-median-mode-and-range | false | true | Look at this set of 9 numbers: How would the mean change if the number 14 were added to the set? | "iVBORw0KGgoAAAANSUhEUgAAAWMAAAAkCAYAAABc6FuBAAAJCElEQVR4nO3deXCU9R3H8fde2dx3CIQjIQGCHOEKCJUjKAGMtdI6WB2phVas49hKB+of2lPtTCstI1icMhapiI5CBcQRsCn3KXJfk5BAEhJC7jvZ7Pn0j01WFtA8Ic9mF/2+ZviDZ36b3yf55vnus7/9PRudoigKgMMF7TZwKaAghBDCV3SAXgfBQWDUdxxTFEVpt4PV4ddsQgjxnWQ2QrAJ9A6XNGIhhPAXq8O9MqG32v0dRQghvtusdtA7Xf6OIYQQ321OF+jlzTo... | [
"no change",
"decrease",
"increase"
] | null | 1 |
math | calculus | determine-one-sided-continuity-using-graphs | false | true | Is f(x) continuous from the left at x= – 1? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB25ElEQVR4nO3deXwU550n/k/f6kO3hCRkJIwx2MIIm8M2GLAdHBvbiRNwspBs4jibzdjZ3NmZ3fk5x28nQ5zsTo5NxsnEmc34SnYy4Wdsj8GCYIORImIwMggkTgvQiY6Wult9VFdVd9Xvj6bbiLMb6lGrpc/79crLUav7qy9V3dWffvqpp0y6rusgIiIiIiJDmLPdABERERHRZMKATURERERkIAZsIiIiIiIDMWAT0Rg7duzAzJkz8fDDDwMAPvrRj+KVV1656H1VVcW... | [
"no",
"yes"
] | null | 1 |
math | grade-1 | find-the-next-shape-in-a-growing-pattern | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADhCAYAAAC9ZMGZAAAZlElEQVR4nO3dXYwlZYHG8afqnDpf3dM9tOMwzAAmiwYudBUjugm47AW6u9kLojfr4sUmspdwsdkEMfK5EIwkrNFsVJLFBKOrycYIxgC6hDCKcZNFia6sA8oOM3Q3TPdMTw/9eapOVe3FoZk+TH+cOl0fb731/yUmMtOn6n3et2rynOo6dZw4jmMBAAAAsIJb9AAAAAAApIeCDwAAAFiEgg8AAABYhIIPAAAAWISCDwAAAFiEgg8AAABYhIIPAAAAWISCDwAAAFiEgg8... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAADhCAYAAAAJS2C/AAAd50lEQVR4nO3dW4wc133n8V9Vd/VthjMUTVMUKdnAKob8EG9iw3ICSFntg+JdYx8E52Wz8sMCdp4C+SFYQKZh6+KVIMECFMPGwraAlQEZuQhYCJYCQVKyBCEmNhRkJXOTjRJKDndIambImSFnhpprV3XVyUNpxBlxLl09dTlV/f0ABsyZ6VP//znVrf51VVc5xhgjAAAAAJXgOE7RJVjJLboAAAAAAMgawQcAAABA5RF8AAAAAFQewQcAAABA5RF8AAAAAFQewQc... | 0 |
math | kindergarten | are-there-enough | false | true | Are there enough pillows for every sleeping bag? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACgCAYAAAA2PRuAAAAao0lEQVR4nO3dbYwkiX3X8V9Vd/Xz0/Q8z+zuzD4/3Poe4rNzVhyfnRAFcGwTwgtkgWQJJASyIpkoQgKh8I4gZCuR8g4EAYRFIEASOTYKyLEJvtj3YPvs8+3OPszuzOw8z3RPP1fXIy96d3bXO7M3D7W3PXvfz5u7656uqm/rpPqrqrrKCMMwFAAAAIBImE97AwAAAIBnCQM2AAAAECEGbAAAACBCDNgAAABAhBiwAQAAgAgxYAMAAAARYsAGAAAAIsSADQAAAESIARs... | [
"yes",
"no"
] | null | 0 |
math | grade-3 | fractions-of-a-group-unit-fractions | false | true | What fraction of the shapes are circles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABKCAYAAACB4iNkAAAKTUlEQVR4nO3dTWzT9x3H8Q+JnQc7TmzHSTecNM7CqIjZAWkQ0IrKJq1I3bEF9ViN0QNcxni4tr2WMnpYcxhtzxN0x1Wik1amUYWEwzQNBxXBYhon6uwkduz8ncR2nB3AYZSHhvjh93d4v66W5c/Xp49+/v5/3rK6uroqAAAAABXRYDoAAAAAsJlQsAEAAIAKomADAAAAFeQwHQDPZjxxTZJk5dKSJHdTuyRpsGuvsUwAAAB4gIJtU9FURNen/qpIfETRZETZfGZd73M... | [
"1/4",
"1/3",
"1/6",
"1/2"
] | null | 3 |
math | grade-5 | multiply-unit-fractions-by-whole-numbers-using-models | true | false | Which model represents the product 2×
1
8
? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANwAAACOCAYAAABaHGZ9AAAPiElEQVR4nO2dX2xUVR7Hv1OEJaCdadSazUpnarLsQ//RZRWjkun4QsQ2MzxBF0in+tAGkA4xgaQmhkBkAw/bAanbbrJ2RmHRfYCZUmn2xakLyQq76Dggibprp2hcLcLcKjWItmcfpud2pp1pZ9p7zrnT/j5Jk/6de8799Hvv/Z05514LY4x9fRf4zw/A92PAzwwEQRjEPRbgviXAr1cADy0DLF//yNil71Q3iyAWPuuKgXs++yH5xS+XAb9ZmUwjQRDG8P0Y8Mk... | 1 |
math | calculus | find-limits-at-vertical-asymptotes-using-graphs | false | true | The graph shows f(x). The dashed lines are vertical asymptotes. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AACSE0lEQVR4nOz9eXRb53kv/n4xgyBIgjMpSqRmWpRFyRotW4rlyLEVO3EiO66dHGdq0tumTpr0tl2pe3Oz1mndJKeZbnps16dNGrtH+dWNG2fwINuyJUsyZYkSJVEiNVGUxEEUB5AAiHnvjb3vHxBAUeIAkHsDIPD9rOUlC9x48AoENp794H3fR6coigIiIiIiIlKFPt0DICIiIiLKJkywiYiIiIhUxASbiIiIiEhFTLCJcsjevXuxcOFCPPTQQ+keChERUdbScZEjUe6... | [
"$\\lim _{x \\rightarrow 1^{+}} f(x)=-\\infty$",
"$\\lim _{x \\rightarrow 1^{+}} f(x)=\\infty$"
] | null | 0 |
math | grade-5 | parallel-sides-in-quadrilaterals | false | true | How many pairs of opposite sides are parallel? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADICAYAAADSmpa3AAAcoElEQVR4nO3dfXBUdZ7v8c853X26k0CAyKMCa8RBwCFBCKhJEHXGHZWZXYcZZ7bWtdYadq3VtcpyLcfaHeu6bo11r2vNWuxaztbU9V5vOexc9V7GuXe4Oou6MiRBSUASBhiDGORRngIJkHSffjj3jzycE5SQh9PP79dfdKqb/KA7lU//+vv7HMNxHEcAAAAAfGFmewEAAABAISFgAwAAAD4iYAMAAAA+ImADAAAAPiJgAwAAAD4iYAMAAAA+ImADAAAAPiJg57B9PVL... | [
"2 pairs",
"no pairs",
"1 pair"
] | null | 1 |
math | kindergarten | cubes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAATKUlEQVR4nO2dX3BT153Hv0eW5D+yJGMZyxgHQwB7Q8AOwR1MtxAImWkn2ZCd2WQmk6Z52AlJX3amyXb70M4Ok0wnL+2GzOzLssm+lKbTbujDkklm2yH8S9pCFyexvV1iIAGDMLaxwLYsy5YlnX240v0ji/jfObrnSr9PZuLrq3PP/Vn8dPT7d36Xcc75cBK4Mg3E0kCKgyCUw80AfwWwuQYIewE2PMv5nyftFosgFs/OAOC+PK39ssYLtPs0rSYI1YilgYE4cCs... | 0 |
math | algebra-2 | find-inverse-functions-and-relations | false | true | The graph below shows a function. Is its inverse also a function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AACA/UlEQVR4nO39e3RU530v/r9Hc9V9hIQkEEgyIEQAcTMCA8LGhdqundiGpAc3zcWtTxuncdz2rPb8crp6utosH5+c1aY9ybEdJ+fk2E5Xv23iE2LHgEyxzc0igJGNkMRNltENGEkjzYzmuvfM7P37Y9iDhCTQSPvRXPR+reWFNZr5zKO9Zz/z2c/+7OcxqKqqgoiIiIiIdJGV7AYQEREREWUSJthERERERDpigk1EREREpCMm2EREREREOmKCTURj/Ou//iuampriP0c... | [
"no",
"yes"
] | null | 0 |
science | grade-7 | use-scientific-names-to-classify-organisms | true | true | This organism is a common toad. Its scientific name is Bufo bufo. Select the organism in the same genus as the common toad. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOy9ebgmVXXv/9lDDe98pj49MzRNM4MKKIoQCaKALWogKmocYxyj0Yjjz3iJuWLE6xCCQ0wIetHoxQwONyqCcWCymWnmoRto+nT36TO+Yw17+P1R3Sc0NAjYasKtz/Ocp7vqfatqV9Wuetdee63vEt57b4zBOUdJSUlJSUlJSUnJfxWklGitf9fN+G+HLI37kpKSkpKSkpKS/4o45zDG/K6b8d8OWRr3JSUlJSUlJSUl/1UpbdUnjvxdN6CkpKSkpKSkpKS... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADMCAYAAABp7h4wAAEAAElEQVR4nOy9d7wlR3mn/1R1PvnmODknjTTKAZAQEiCEECBskg3IC7ZFcMIEr23A9gK7AoORSWssMMYEw2KCbaIEAuU0mqDR5Dw333vyOZ2q6vfH0cwySIAA2fLyO8/nI93Tobqru97uqW+/b70ljDEmTVO01nTp0qVLly5dunTp8l8FKSW2bT/V1fh/DiHEU12FLl1+JrIrQrt06dKlS5cuXbr8V0RrTZqmT3U1unTp8h+A3RWhXbp06dKlS5cuXf6r0u2r/vz... | 2 |
math | kindergarten | hexagons | true | false | Which shape is a hexagon? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAHO0lEQVR4nO3d3WtURxgG8Ge/ZFHTXCS0JCKNKbbVGNCuTS4KvSkIBW8EP2r/QK0f4I1QELwp9MKtW4Vo1drGgBhTSC50TVjNrqcXU6EUi54zM+/7zjnP70oJuxlmnuyeM/POnFqWZdnaK+CPLaA/AoYZiLw1a8BYA9i/E/hoB1Bbe5ll3efazaIyW/wAaD7ccv+Z2gF8tsulkMhXfwQ82ASevgJ+3wLqz4fuBwwZhTTWcJkCgBcjoD761w+IQnqTqe0MqOs2haq... | 0 |
math | grade-3 | match-clocks-and-times | false | true | What time does the clock show? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEJCAYAAADhBFPCAABcwElEQVR4nO3de1yT99k/8A+IQYF4IBxMrDWgglbSE7aA2orSag+C7bStsnXr5uFZu7WyPT3Ctq7dI127dT9oH7uu6trtWaNdtS1i10pFoVrAVuraoBbUEK0Gg8RTCEJA+f3BkhLJ4c6JHPi8Xy9fQu7vfd+XGl5e+d7X9/qG9fb29oKIiIiIiEJCuL8DICIiIiIi72GCT0REREQUQpjgExERERGFECb4REREREQhhAk+EREREVEIifB3AOR/F02X0NHVA2NnT9/vXX2... | [
"twelve fifteen",
"two fifty-five",
"eleven fifteen"
] | null | 2 |
math | pre-k | addition-sentences-up-to-10-what-does-the-model-show | false | true | Which addition sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABUCAYAAAC4PkCPAAAQ30lEQVR4nO3dW2wc133H8d+Z297J5VKiJNpwqEskxZAlNWoebBdpnQKBXSgBkqbJW4IWaADDL21TtC9t0bwEfSxatH0o0KKw0RQt0KJwgaBBHwqjjZOikh0rsBXJVhQ1pkRSpJZ74XKupw+jFUlJpLnkzJnZOb8PIMigyZn5YgHuX7MzZ4SUUoKIiIiIiBJhZH0ARERERERFwgGbiIiIiChBHLCJiIiIiBLEAZuIiIiIKEEcsImIiIiIEsQBm4iIiIgoQRywiYiIiIg... | [
"6+4=10",
"6+2=8"
] | null | 1 |
math | grade-8 | apply-addition-and-subtraction-rules | false | true | The number line shows an unknown number, a. Is 1–a positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGZ0lEQVR4nO3dT2yT9x3H8c/j1I9d28Hz0qTL1GSw9lBlSAgIJkGsYqd1QmgKhQOaypDYkEBIHDn1tAgJacoJJJDYhWkRHBYmcelOk0Ol2Q4GeYpiuqkKS1q1jetmTf0vdmLv4NhKIHGoavz4z/t1yvP4OXykx1E++ub3/B6jWCwWBQBNZHx8XIZh6NSpU1ZHQZ1wzwE0k1esDgAA39X8/LzVEVBn3HMAzeSFC3Y+n1ckElEoFFJPTw9TBMAChVRRi3//VumZrNKxZUm... | [
"negative",
"positive"
] | null | 1 |
math | grade-8 | multiply-polynomials-using-algebra-tiles | true | false | Which area model represents the expression (3x+2)(2x+3)? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAVUAAAEACAYAAAADT+VqAAAT20lEQVR4nO3df2zU9R3H8dd9r4XClf7AFtpShrbIL5UAHVGi7IcOBaMui9kSjMnCfyYONYv/OOf+3OaSZS4LmTNxidO5+AOX4RKRxjFhbuDWAsoPy49KW2lLe1Jaeu364763P7p2bQe1vXsfX+5zz8c/9Q5773deXF73/fbKfUOJRCLRPiid7pMuxaXhhAAA05QTkuaFpRvnSgtnSaH2gUTiw56g1wKAzHdrgZRzqm/kRvksaXlkpHEBANNzKS41xKS2Qelkn+T... | 1 |
math | grade-4 | sides-and-angles-of-quadrilaterals | true | false | Which quadrilateral appears to have 2 pairs of parallel sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAADgCAYAAACaXl3yAAAJk0lEQVR4nO3dUWyVZx3H8d972p7Tc3paO7cpuGTpxSamNwJKQAwGEwNxNQaWgAokm2ZeABJjmDcyZ7LI7rhRuFCzLUS8AWN2w60ju5oYcYlxccIiicbVBEdte0opp7xenHQ+Hih9Ked9n+f/vN/P1QjZ+jK++eXfcnpI0jRNJxekK3PSzKLUTgUEpz+RhvukJxvSx6tSMnkzTS9O+34sILvNI1L/5bnOD9ZWpXVDnaqB0MwsSu+2pPcXpL/OSZXpducniBYhG+7... | 2 |
math | grade-3 | select-figures-with-a-given-area | true | false | Which shape has an area of 5 square units? The shapes are made of unit squares. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIYAAACGCAYAAAAYefKRAAACgUlEQVR4nO3dzYoUVxzG4bd6PhZ+JLuIF6BegiAG3SR3lFxE7kizcERx4R2MunfczuiAk2lOFsVAIC9xk7IG+nlWXRT8z6H7x6E2RU9jjHFykXw4T862yeUIO2h/Sm7vJfduJHcOk+nk6xhvT9feFtfJwx+S/ffn88Xdw+TBzbkads/ZNjn+kny8SN6dJ5vTy/mGKHbb7b25gST5vE0223/cYLddNfDXSDbrboXrShhUwqASBpUwqIRBJQwqYVAJg0oYVMKgEga... | 1 |
math | grade-2 | purchases-do-you-have-enough-money-up-to-5-dollars | false | true |
A toy car costs 2 dollars and 58 cents. Do you have enough money to buy it? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAFuCAYAAAD09WwgAAEAAElEQVR4nOy9eZwkRZ33/x7OLBiYSOSoXBEmPMBsQanikC4VnFJEC0Ht9tpuPKARj55nPaZ/yjrN46POqKvd6zUt6tI8rtKNit0eQCmKNahr9XpVjdckrkqMeGSpuBmgUMmZvz8iM6uqp3umR1BmefLzenVXVWRk3JH5iW98v99YFUVRRIYMGTJkyJAhQ4YMGR4W2OehLkCGDBkyZMiQIUOGDBkePGQEP0OGDBkyZMiQIUOGhxEedIKv74mQ199OofZn9D2Z9k+GDBk... | [
"yes",
"no"
] | null | 1 |
science | grade-5 | identify-magnets-that-attract-or-repel | false | true | Two magnets are placed as shown. Will these magnets attract or repel each other? | "iVBORw0KGgoAAAANSUhEUgAAAZAAAAC6CAYAAACA/xsoAAAs0UlEQVR4nO3dd1gUx/8H8Dft6HAoRXoRBESxIyoK9t5bYosmRk1iyzdFo1FjLykmRtPsBTVGDXbFil0QsVNElF6kl6PD7w/Fn0bKld2d3b15PY+Pgnc7b/TmPrczuzMa1dXV1aCUJqsoQUxuIp7mJeNpXjJeFOciv6zojV+yt77OLi0AAFjoSWEiMYCJxBAmEkOY6hq9/rqRrgks9KVwldqhqYkt3M0cCP+UFEVR79KgBUQ+ES9i8Dj7OZ7mJSM2Lwlx+Sl4kpuIjOJ... | [
"repel",
"attract"
] | null | 1 |
science | grade-3 | animal-adaptations-feet-and-limbs | true | true | Sumatran orangutans live in rain forests on the island of Sumatra in Asia. They climb trees to find food and shelter. The orangutan's hands and feet are adapted for climbing trees. Which animal is also adapted for climbing trees? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOzdd7gkVZ3A/W/l1Llv33zv3LmTM0MWkKAggoCgiIqsGXZ1XUQU46rrYlojgrC6RlRMKCYEAyJIDsPMMMMweebm2DlVrvePeZmXzABX2eXtz/PwPNya6nN+deqcql+fPl0tRFEU+b5PGIa0tLS0tLS0tLS0tPzfJIoisiwjeJ4XtZL7lpaWlpaWlpaWlv/7RFFEbCX3LS0tLS0tLS0tLS8OYRgivtBBtLS0tLS0tLS0tLTMnVaC39LS0tLS0tLS0vIi0kr... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9d6BdR3W3/czMbqff3tWbJUvuDXCjGmxjMBgCNoEYgvNCCKGXvIGEEEpCCAQDwQnNtEAgQGjGYDDGvUqybFm9Xun2e3rZZWa+P46k14CxZVsJCd95/IelrX1m1rR99u+sNWuEtdYmSYIxhg4dOnTo0KFDhw4dOvzvREqJ4zgIIX7XpnTo8HuJ7AjnDh06dOjQoUOHDh3+92OMIUmS37UZHTr83iI7wrlDhw4dOnTo0KFDh98POu/2HTr81yF/1wZ... | 0 |
math | grade-4 | sides-and-angles-of-quadrilaterals | true | false | Which quadrilateral appears to have exactly 2 equal sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAACuCAYAAAAvfwH9AAAH60lEQVR4nO3dz2tc1x2G8ffOL4/nzmQ0Tusg0i6KnQZSsBYJEYEaQxTiJCXdl/4JXXbRRbf5H7LPKpBdTVIaai8SKMTQTQgBOzJdBCM7baSxRjMejUZzu7i51g0BIds693vOmeezsjFojph5dKV5NZ4ky7Ls3kzanEijQ2meCYAjjUTq1aUXOtJzLSm5t59lN3etjwUsn/VnpMY3k/wvqy3pxTSvE4Abo0Pp1ljamkm3J1Jtd57/A/EB7vXqeWuStHco1Q5L/wD... | 0 |
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