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 | kindergarten | times-of-everyday-events | true | false |
Tom is eating lunch. What time is it?
Choose the more likely time. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHQAAABzCAYAAABJnyafAAAOsklEQVR4nO2deXAb133Hv9hdYHES4AHwkkiR1E3bki3Tki85VaqM4zbHOJq2Y4+qaTVx42n/6Nhq02k9FqW6bZqR3ZlmmqTOOBnXtqYzrZTDqZ06E8n22G4lJb4qkbpoiqIkgOCBe3Ht4vUPkFwscRBvsSBIcD9/YR/2/d4P+8U79r23vzUQQogvBVwVgIgEiAQ6KwjOADhYYIMVaDUBBl+SkLPhWrulowU7GwDuipA9aDcBm2xZtXVWDhEJuBQDvCngsgAwYTH... | 0 |
math | grade-1 | flip-turn-and-slide | false | true | What has been done to this letter? | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAMAklEQVR4nO3dUWwb9R0H8K9jx47t2BiWpJSjQNoNmgqaSGmcl7VNwVEHqgqrtgfUTkoqXtIXNoTGwxrkiuSBSeyBB3hBJBLlbVjpBJO2uCmlgyk4MEfQOqhtKAN3I+5axw6O7di+PaQOcWLX/7Pv7Lv7/z4SDzj//HyN72v/7+5/Pxv2798v9vX1QQ7nz5+HKIqgepXXO3funCy16q2vr0/Vf2fe6pn6+vrg9XplKXjq1CmIokj1qqinF7RfqategyyVCCGqRkEnhAM... | [
"flip",
"slide",
"turn"
] | null | 2 |
science | grade-4 | compare-properties-of-materials | true | false | Which is the scratchiest? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AAA1D0lEQVR4nO29eZhdVZ3v/Vl7OvNUc6WqUkklkAFIIARQwiAIKGgLrSIqesVuvbb69qvX9vreV18bfdru2/30c/V249PdNq14EUUcukFBWpEhQoBAAoQEMpBUpYbUXHWqznz2tN4/9qkpqcyV5FTV+TzPqbPP3rv2Wfuc7/mt3/qttX5LvDwu5aoQRFQqVDirpB3Ym4U+ExIaXBX39isVQVY4V0RUWBXytjPO1H6lIsgK55IJ/Vlyap9ybopSocLRqYhyjpEScim... | 2 |
math | grade-2 | match-addition-sentences-and-models-sums-to-10 | true | false | Which shows 4+3=7? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdoAAABKCAYAAAAc9ZVYAAAN00lEQVR4nO3dT4wb12HH8d9784//d6WV7ZUUy4bltSMrae0Wtew4vgVO0zYFgiBuEARGD7kFRWAE6aHH9FAgPRRBewh6aw9tmiIoGqfupaekhl2jBQI4rqE/VRD9Wa3+rLy7/DvDmfd6GHK1XFEkh5xHDke/D2BoVyRn+DWg92Y4wxmhtdZbAXCpBdQjINQgIiKiKdkCqFrARgl4zAXElq/1+3uLfltERET5c64G2Bdb8S/HXeDZcjwLExER0XTqEXC+CdwIgAs... | 1 |
engineer | grade-8 | identify-control-and-experimental-groups | false | true | In this experiment, which were part of an experimental group? The passage below describes an experiment. Emma grew roses for a flower shop. One day, she noticed tumor-like growths on her rose stems. She could tell that the plants had crown gall disease, which is caused by a type of bacteria. She knew that allicin, a ch... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAE3CAYAAADBi3hdAAEAAElEQVR4nOz917NkWZbeif22OMrl1XFDR0bKyqrM6qzK0q0KaHQDMwCmiQEMIwwwoxkfYIQZX0j+G3gYjhGggSMexmicoZEgDU00BsB0A42uLi0ys1KHyBA3xFV+XR+xBR/2Oe5+IyKzRFZ1VtOw0zw97r3uR+6z9lrf+ta3xD/8h//Q8x/Gfxj/YfyH8Rdo/KN/9I8+kf1qgG/8T/8YpVOcz5iXEufbxNkGOlnDCU1vbZ2rzz7F13/n1/md3/0aFy6ugTBYO8XhiVQ... | [
"the roses sprayed with garlic juice",
"the roses that were not sprayed"
] | null | 0 |
math | algebra-1 | model-and-solve-linear-equations-using-algebra-tiles | false | true | Which equation does this set of algebra tiles represent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABiCAYAAABqHaQ/AAAJtUlEQVR4nO3dX2hU6R3G8efMmWw0041KkzHJukqjdDdZWoiiXWn3opVltRe2MCK5LQj2oturYGHxeknuhEW2FBYWKWWpRq8KQ6S43Wx1o2jQukm3JW6T2vyZiU6cZMy/OefthWuouCWTzXvOmRy+H/DiHIb3+c3dM3LyO44xxggAAACAFYmoBwAAAADihIINAAAAWETBBgAAACyiYAMAAAAWUbABAAAAiyjYAAAAgEXJqAeIEy/XK1Matn6uk2qTm85EngcAAIDVOU/... | [
"x+3=6",
"x+2=6",
"x+5=6",
"x+7=6"
] | null | 0 |
math | grade-6 | identify-complementary-supplementary-vertical-adjacent-and-congruent-angles | false | true | Which angle is complementary to \angle{6}? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAECCAYAAADEnqDRAAAhAklEQVR4nO3dfXTT9d3/8VdKC5ZimirQVm6a0pYWhKbe49Gzthtnyu7AqZvMI6Jzh81rk3K2cxxHd1nc3HHnbKM7u3aOx+PvDC7d5ja2E86m4ryLioogGlosaVraFJC2iJIGQkeh6e8PrmSNSW9Jm++3eT7OySmk32/6Ceg5r3x4f95vS39/f7+AMfD5fLLb7cleBgAAgKGkJXsBMCen06m6urpkLwMAAMBwCNgYtfb2dq1du1ZutzvZSwEAADAcCyUiGK0bb7xRb73... | [
"\\angle{1}",
"\\angle{5}",
"\\angle{3}",
"\\angle{4}"
] | null | 1 |
math | grade-4 | properties-of-three-dimensional-figures | true | false | Julia saw a 3-dimensional figure that had a round base. Which figure could Julia have seen? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAABSCAYAAABNL9ifAAAPUklEQVR4nO3de1RU9d7H8ffAMIqgoy5UzMDgYLq84NJF5S1O2iAEJJUrO4qIWHIoTc2VIiUuu4jaQiqPx8ujJqVxRHoOl7ykBw+pZKWSPMrSTkfCS3rECEbkfn3+mGbW5j4zzLBhzu/1j7Lnt/f+zR4+/r7fPSMoGhsbG+/WwLUKeFAPdY0IgmAFSgX0tYcRfWCISrdNcbe6sfFcqbwTE4T/Nk/0g8EqUP67QrdhqApGOukSKgiC5T2oh3+Vw39q4KcKXQDtSut... | 1 |
math | grade-4 | compare-decimals-using-models | false | true | Compare 0.43 and 0.82. Use the models to help. 0.43 ?0.82 | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC0CAYAAACuelsNAAAMPklEQVR4nO3cT4hV9d/A8c/IEP4qawJLSwtUbGGNjUhJgkFMJRVupOKqJwWlEiLsj2QaRiFDpoYFs2hhqXDRa9AsNEylDIUWLoo7TmULG0UUQwYy/5Dmn/MsHn/z5Gg9zfR17vX6ekGLzpzP+QPfy31zPNy6PM/zAAAAkhhQ6QsAAIBaIrABACAhgQ0AAAkJbAAASEhgAwBAQgIbAAASEtgAAJCQwAYAgIQENgAAJFT/b4azrJzoMqgVxWJTRc5rLdJTpdYiAHiCDQA... | [
"=",
">",
"<"
] | null | 2 |
math | grade-2 | match-digital-clocks-and-times | true | false | Which clock shows five fifteen? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMIAAAB5CAYAAABr7P6HAAAHDElEQVR4nO3dP2zbZgKG8YdO4qF1yKGX/kM0ZLg7IOJeVFOQJqkzdLFscupwRZT1UtQ31qrV1UEkIJuDdugSObaHFjjrLunqAp2l4NLexgKXS9oCVNqktqOygypF9lKLIkUyen9LYDgkv9h6xE/iR8UIgiC4vwv/fQyPOvA0QOS5d9SA40fgzy/AK9Ng3N8Jgq/bSQ9LJDlvmHD028fdL16bhr++2K1E5Hn3qAP3fob/7cI3j2Gq/bT7DUUgk+T4ke5jHuCnDkx... | 1 |
math | grade-3 | fractions-of-a-group-unit-fractions | false | true | What fraction of the shapes are rectangles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABKCAYAAACB4iNkAAAG5ElEQVR4nO3dQW8c9RkG8AfWysYbXIfaliMcZVEilBipByi3KrkSjuBzLr2Aeiofovceeu336BfgglohitRU6gUqoE6MvV7s2HGyu+5hVZuI4pDM7M7M5vc7Orsz7+E5PJrs/N+Xjo+PjwMAAJTi5aoHAACAWaJgAwBAiRRsAAAo0VxZF9r+ay//+OO/fvT3xfWFswfozOWVbufMz7Q6rbzSvXDmZ84vn0t7pf30QWkEeQIAmqq0gj04GP7fv/fv7j31u9t/65U1xhO... | [
"1/4",
"1/8",
"1/6",
"1/3"
] | null | 3 |
math | grade-7 | bases-of-three-dimensional-figures | false | true | Look at this figure: What is the shape of its bases? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADqCAYAAACY/jKKAAAmZElEQVR4nO3daXyU9bnG8SuTySRkXyGBAIEAIQESpaKoFRGlVDSAgkerVgWbMGIrigvqwaUuR6tFqlUSiRDr0mpF2VWsgnKUuh0EtCERoiFAEghkXyfbeYEZUkRK4Mk8M8nv+/Kf5bmiby6ez3/u26utra1NAAAAAAxhMTsAAAAA0J1QsDvh5ZdfVr9+/ZSSkqKMjAxVV1ebHQkAAABuxosrIv9Zbm6ubrrpJn344Yf/du7v769rr71Wc+bMUUpKijnhAAAA4FYo2Md... | [
"circle",
"rectangle",
"heptagon",
"decagon"
] | null | 1 |
math | grade-8 | mean-median-mode-and-range-find-the-missing-number | false | true | Colleen has the following data: If the range is 4, which number could c be? | "iVBORw0KGgoAAAANSUhEUgAAAS4AAAAkCAYAAAA3rNeRAAAGfklEQVR4nO3ce3BU5RnH8e852WTJJpCYDZsQEYjIJUkTxIEKGKDBC5IRIjOiDLWxLaVIwRbqtJbGFh00tMU6alCnFplSbQ0XwRgzAjNokkqhTMSAmcaKCNFMIGFzI2GTvR7/oGQagte8Zw/beT5/vmfm/Z3nPZkn756zezTDMAwAXyiAx99L0AhhIIQQVwYNiNJ0HNFDiNFtF8YMwzDOB7z0BLzWnp0QQnwJh82Ow2bH5g8FpWkJISKCJ+AlWo9C90jTEkJEEE/Ahx4... | [
"15",
"8"
] | null | 1 |
math | grade-2 | fractions-of-a-whole-modeling-word-problems | true | false | Gabe and Devon are wrapping gifts to give to their cousins at the family reunion. To avoid making anyone feel left out, Gabe and Devon got each of the 2 cousins the same gift. Gabe cuts a sheet of wrapping paper into 2 equal pieces. Gabe starts wrapping gifts first. He uses 1 piece to wrap a gift. Which model represent... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUsAAABKCAYAAAAynHaPAAACIUlEQVR4nO3XP04UcRjH4Xf2DwWCNkZjQYd6BMIBKL2LR/EsWnIAEm6AbEchRiv+bALu5mcx2WD53UTYBZ6n2ZnMTPJO85l3u9ZaO7+tmkyrLudVs1YAz96oq9oeVr3frHq7UdWd37R2fLHqsQDW197LqtHptD95t1H18UVfUoDn7nJedXJd9eO26vu0anAx6y8IJcCd7WHfxaqqq3nVYP7PBQDuLLr4p1UNVjsKwOMglgABsQQIiCVAQCwBAmIJEBBLgMBo2Qc... | 2 |
math | pre-k | cones | true | false | Which shape is a cone? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAS+klEQVR4nO2dWW8bWXqG39q4SaSojZKthVop2d2ZSQOddGcCeIBxgEmAJECukotggAGCIDf5TbkKggBBLjoOOj292JZsS5ZleZEX7ZZsSbbU2riJS7FYuTg8EmlS1kaytu+5M0WaheLLj6dOfec5gq7r+ocssHQIxDUgp4MgTIcsAH4JGPYBHS5A+JDR9amY0YdFEGfnqwAgLx6yf1xxASMNLNUEYTbiGjCfBN5ngYVDQIzl2B8otISZ8UssowCQ0ABRK/oDQZg... | 0 |
math | grade-3 | lines-line-segments-and-rays | false | true | What is this? | "iVBORw0KGgoAAAANSUhEUgAAAG4AAABuCAYAAADGWyb7AAAEaklEQVR4nO2cT2tcVRiHn/G2kwnMYMCp7aYpTbSZ6aSxipSuitJdGZz0j5iNMH6BYj+Hi/YjZNcOKZhI1JXUpUhpk9ImGTEBK9i0yWJwApmMDNfFpHEyN4K4yDnv+55nl7N64Ul+Oefee36pOI5jAuJ4w/UAgf/HEdcD9NNobXNr/html57SaLWofvAht8ufMJQZdD2aV3gnrjpTY2752d7P048eEhMzfWPK4VT+4V1U9krbW1tKrlnHO3EHEbZPSbwTVymWEmuTpeS... | [
"ray",
"line",
"line segment"
] | null | 2 |
science | grade-7 | use-scientific-names-to-classify-organisms | true | true | This organism is a tomato clownfish. Its scientific name is Amphiprion frenatus. Select the organism in the same species as the tomato clownfish. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAADv4ElEQVR4nOy9eZxlVXW3/6y19znn3qqu6rmZEaGhmQRkUEQhQcIroC9ORFSCCmpUJBgxCOpPkTglAXFAjFFfHCIm0cSJRAPBIQqorYB0gyIqczNPPVTVvffsvdfvj33u7W4aZGrFkPN8LKm6de6Z9rnVa6/9Xd8lZmYhBFJKtLS0tLS0tLS0tLT8z0RV8d4jdV1bG9y3tLS0tLS0tLS0/M9HVdE2uG9paWlpaWlpaWl5YpBSQh/vk2hpaWlpaWlpaWlp2Xi0AX5LS0t... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADMCAYAAABp7h4wAAEAAElEQVR4nOy9ebxkVXnu/33XWruqzjl9eu5maEDmSQRFjUSFXPR6RfTiRELUOGu8KtGIwSH+1BCnJOBIMEa9OFxJoiZxwGhQjEYBAW2QwQFU5nlqejhD1d5rvb8/3rV31RkauqEdYvbz8djnVO3a49rFftbzvM8rqqpVVZFSokWLFi1atGjRokWLFv814ZwjhICI/Lp3pUWL+4VrSWiLFi1atGjRokWLFv/1kVKiqqpf9260aLFNCC0JbdGiRYsWLVq0aNHitwM... | 1 |
math | grade-4 | interpret-bar-graphs | true | true | Martin, an employee at Joseph's Convenience Store, looked at the sales of each of its soda products. Which bar graph shows the same data? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACeCAYAAAAITX1dAABI8ElEQVR4nO3dd3RUVdfA4d/0tEnvhRB6rwpIlQ6CKFixgYqUF4QvKCAiCK+KEI2vCiggSBEiKCpFQIooKlJFRIq0ECCE9DZpM5PJfH8MGRhDSWAglP2slbWce8+cu++ZYbnvufueUWwM/92KEEI4Sdcz91V2CEIIIUSlUlZ2AEIIIYQQQtxJJMEWQgghhBDCiSTBFkIIIYQQwokkwRZCCCGEEMKJJMEWQgghhBDCiSTBFkIIIYQQwokkwRZCCCGEEMKJJMEWQgghhBD... | null | [
"iVBORw0KGgoAAAANSUhEUgAABSQAAAFsCAYAAADVK7dvAAC0/klEQVR4nOzdd3iUVdrH8e9MZiY9JCGBQGhBIBDpSG+RJoqogEiwgiiKsGGxoKKIlVUEdllhFTu8igKSCEoVEBRUFKV3pAYI6T2ZSZn3jzEDY0AChoTA73NdXjAz5znPfc5Mdoc79znHANgREREREZEyYbfbibfBwRzILIQCfdsWERGRa5zJAL5u0NALqlvAgBKSIiIiIiJlJt5q5+eMio5CRERE5MrU3g9MFR2EiIiIiMjV5ECO488aFgj3dlQDiIiIiFzLMgt... | 1 |
science | grade-3 | predict-heat-flow | true | false | Two solid blocks are heated to the temperatures shown. The blocks are placed so they touch. Which diagram shows the direction heat will flow? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAZUElEQVR4nO3de3QU93338ffMXiXt6oJuCCHudwE2NwM22BgSu8bGseNj104baN3YSU9y2jonaZuek/pJ+/R54jRtmtP0D8dpG8exUzvxDcc2EIMJGHMVN4EQSIAEut9WWq1We5md6R8rrRGSsUDLzEr6vv4Bzc7lu1rtZ2e+M78dxTAMoykC1UHojoFmIIQQSWFXwGuD2elQ6ASlKWwYh/xWlyWEGOtWZoK9Khj/ocgJczPiaSSEEMnQHYOzPdAYgXNBUP1a/AE... | 0 |
math | grade-4 | nets-of-three-dimensional-figures | true | true | Which figure will this net make? | "iVBORw0KGgoAAAANSUhEUgAAALwAAADNCAYAAAACNxrPAAANAElEQVR4nO3df1DUdRoH8PciiJKXnhiVF50S5rqKWzRIdF4YTQoypZcgnRmCN46UzgkqKiADBYIOoHfXebTjnGSZl0p32g2yVkdT541tTFMrti5pqMGVbYJ6Ckri7v2xxxa/DhYWvss+79efuCwf2bfPPn73+3k+KpvNZgOREF5KL4BoKHkrvQAlqFQqpZfgFiS+uYur8Az7DyT+LkRWeAD4/Jk3lF6Coqa/+azSS1CEuApPsjHwJAoDT6Iw8CQKA0+iMPAkCgNPojD... | null | [
"iVBORw0KGgoAAAANSUhEUgAAATgAAADNCAYAAAAsV2x0AAAokElEQVR4nO3de1yUZf7/8dcgSHEQKqVvKgquChqG2iq5WSi1BZmBp3RbFWjXxdM3oSyPBSqilgXmkfW3CeK6HTxAfRVsi7DDErQqiNGQLmJKrZg5gJgoMr8/xpkEITnMiXs+z8ejhw/Hm3sunHxzXfd1fa5LpdVqtQhhI1QqlaWbIMzIztINEEIIU7G3dAMsQX6K60jnXSidzfXgJNx+IX8XQulssgcH8PWUv1u6CRZ179t/tHQThDA5m+vBCSFshwScEEKxJOC... | 0 |
science | grade-6 | match-chemical-formulas-to-ball-and-stick-models | false | true | Select the chemical formula for this molecule. | "iVBORw0KGgoAAAANSUhEUgAAAacAAACHCAYAAACyNJYaAAA98UlEQVR4nO19e5RdRZ3uV3W6O92d7nQ66e68E0gCJCQkgCAEmAAiMCgiKDMqzHKurrl6xQcRrsjMVVxL56qDj/EBODPL18jM6FJknEGIPAQiSEIuEMSkEwTyIp1O0p1+pl+nz666f+xdu35Vu/Y53Uk/zunUl3Vy9q73Pl1VX/0eVZtJKSU8PDw8PDyKCHyyG+Dh4eHh4WHDk5OHh4eHR9HBk5OHh4eHR9HBk5OHh4eHR9HBk5OHh4eHR9HBk5OHh4eHR9HBk5OHh4e... | [
"I2C",
"ICl",
"I",
"I2Cl2"
] | null | 1 |
math | kindergarten | ordinal-numbers-up-to-tenth | false | true | The first picture is a bucket. Which picture is fourth? first | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAgfElEQVR4nO3dfXAUZb4v8G/3zIQkMAlvCiRZFZZAEhFQ3CRu7WKOkBTugmASrwvulkZXw1bdBawFrOsVhSPn3FXZvSRulQSRcLau4K4Ju0dc8STowXWrzsSCa0TuhFcPrJMEV5YjGQmYmem+fzQzySTz0jPp7nnp76fK0sx0up/8fJ5nfvP0088jyLIsg4iIiIiINCEmugBEREREROmECTYRERERkYZ0S7C/8siY/m99uP19N77ycBYKEREREZlDXAn2H3s92HLiWsT... | [
"boat",
"crab",
"bucket"
] | null | 1 |
math | calculus | find-inverse-functions-and-relations | false | true | The graph below shows a function. Is its inverse also a function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABiDUlEQVR4nO39f3xU9Z33/z8nM5PfCQkJJIAmiCgKJCiKFgR/rFZdbd1Cf2B7a133st2111q7+9nd67u33tpeV7teXv3cunY/terVdderaq9+Pr3q1tr6I1KsCDRUgSjBREWMEBJifpFf8/vMmXO+f8RJiYBk4LydDHnc/9FMcp68cs6cM885OTPjc13XFQAAAABP5GV7AAAAAOBMQsEGAAAAPETBBgAAADxEwQYw4corr9RTTz018fVvfvMbXXjhhXIcJ3tDAQCQYyj... | [
"yes",
"no"
] | null | 1 |
math | grade-3 | match-mixed-numbers-to-models | false | true | Which mixed number is shown? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABkCAYAAAC8REciAAAaWUlEQVR4nO3deZCc9X3n8ffTd8/Rc6GDQZEACSMJxCUCCIlTyISYI8TYCHDZjl2xs15jsvbGWcfEG1e21hVgsU1swiaOi0rMZuPEhqxtEgMSSIC5JEA3EjrRNZp7+j6fZ//o0aDRaEYzPU/P/Lr786qiZEbdT/+Gd/mZ7zzdz/NYjuM4iIiIiIiIKzzTvQARERERkWqiAVtERERExEUasEVEREREXKQBW0RERETERRqwRURERERcpAFbRERERMRFGrBFRERERFykAVt... | [
"4 2/3",
"4 1/3",
"3 1/3",
"3 1/4"
] | null | 0 |
math | kindergarten | represent-numbers-with-pictures-up-to-3 | true | false | Which shows 3? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAATpUlEQVR4nO3deXCcd33H8fez971a3bd1Wb7i2FISh9gmaVJaIE7SmTJAgdAWaOiUgU7LlKE0nfYfSs/ptJOUDtNpKeVqgaEtOIahhCaNc/uUY8eWJVvWubKslbT3rnb36R+qgZA4bYnWv0T7ef2TaHeteX7fed777D672rVs27bjRRjLQqoMJRsRqRKXBWEnbA5AiweseMG2n0ua3iyR2nNrBFzns2s/tHlgS3CtThGpjlQZzmVgrgijWXAkS2tXKD6R6gs711o... | 1 |
math | kindergarten | compare-two-groups-of-coins-pennies-through-dimes | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlYAAACYCAYAAAAm2KfyAAB0RklEQVR4nOy9Z5hc13Wm+55YuaqruzpHdG40cs4kmMEoMSnYkkbZ1ujKtuSxPbKvPLJnLI/H15Jly7IVLVqJCqSYAxhBBCJnoBsNdM65ctWJ90ehSuQ4gSJAgurz6sEDQgCq6zuovXvttdf6lmDbtj2uwfkUxE0wbBwcHBwcHBwcHC4BWYCABC1eKFdBGM/a9oHY2/22HBwcHBwcHBze2awPgtyTyv2iUoU2Xy7qcnBwcHBwcHBw+M+Jm9CdhDENzqVAjBm533C... | 0 |
math | grade-1 | square-corners | true | false | Which shape has 4 square corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAGNElEQVR4nO3dT28TRxjH8e+uDW3500qBtqo4wIFSCSGuvAIgAgRIvFGECALxDjiiKBKJD8mpVAIOBCeBxmwPZkoCgdi7szPzzPy+p1iWs4+sT3Zj73pcNU3TvPwAoy3YnMBug1KdG1ZwcgB/HoPfj0L18n3TPHsbeyyVc1d+huHa1vTGH0fhr+NThUp1bXMCL8bw9wdY3YL67e70DiFTPjs5mJoCeDeBerLnDqV85kz920AddxRVSoKmgiRoKkiCpoIkaCpIgqa... | 0 |
math | algebra-1 | factor-quadratics-using-algebra-tiles | true | false | Which area model represents the factorization $9 x^{2}+12 x+3=(3 x+1)(3 x+3) ?$ | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAATgAAAFyCAYAAABhvMZgAAAX0ElEQVR4nO3dbWxU55nG8WvOeGLMgG0FG2LAvNgkBBaIwaFRIN2GKA7ahKpSILuN2qaN1G20IlLTahMpWr50PzQK0qaJVNFsVknV1Ra2kehWSaEBk6Q0yUaUyEZUwKYEBzc2A/bwMgbb2J5zZj+4tsBJ3GLP8My5z//3BeYg5txceC4/Z441TyyXy+VOD0of9UkXfSmbEwCEUklMmh6Xbp4qzbpBip0eyOV+3+N6LADIrzvKpZLjfcMPam6QFieH2w8AwuiiL33... | 3 |
math | pre-k | spheres | true | false | Which shape is a sphere? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAOUUlEQVR4nO2d228bZRqHf+OZ8Sk+JPYkaUuhwEKhFO0FAtEFBNJysXuzd3uz/8De7d+22gUJVVpAgLacqlKBQNs2ByfN+eDETu3YHk9mL8afz4exPY49M7/npoljJdP4yed33u99308yTdPcqwArReDMAKomCJk5FAmIy8CrUWA5CEh7ZdP8IT/tyyLEPu8mAOVJ0frkahB4bc6ympBZ48wAHhWA3QrwuAgE8lXrC5SWzDJx2XIUAJ4ZQMBo+gIhs4xwVDeBwHQ... | 1 |
math | grade-2 | compare-sides-and-vertices | true | false | Which shape has fewer sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALgAAAC4CAYAAABQMybHAAAKZklEQVR4nO3dTWxcVxUH8P99783E9oydxMGJHZSGEIeqARUnJM2m0AUVQrAACkIqCDUiQlBBW4RUNggWdAlC0C4aVFUCVRFIfEUChKhEpUgIKR9tXCEShTihUMB2Elwn8+F43rx3WcyMkyZNYztz37nvzP+3ixzPPYu/nq7fuXOPsdbamQYwVQcqCdC0IMqtyACDIbBjANhUBMzMorXHrkiXRdR9+4aA6Gy99Y+xInB3qZV+oryqJMCZGjDdAP5eB4IrzdYPGG7... | 1 |
math | grade-5 | interpret-bar-graphs | true | true | A gym class recorded how many active players there are for various sports. Which bar graph shows the same data? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADdCAYAAACBgQWfAABBo0lEQVR4nO3deZxN9R/H8dedubNvlmHs2YVhLNl/MQbZhkJEComQLNGGKIQKRYUk/OqXlDVjiyT7EmnsS7Iru9mXO8v9/XG4XDOY4TKG9/Px8OCe8z3f8znfe2997vd+zveaLr+EFRGRB1SOGfpPlIiIZC9OWR2AiIiIiMjDRAm2iIiIiIgDKcEWEREREXEgJdgiIiIiIg6kBFtERERExIGUYIuIiIiIOJASbBERERERB1KCLSIiIiLiQEqwRUREREQc6JFLsM1lG+A... | null | [
"iVBORw0KGgoAAAANSUhEUgAABLQAAAGlCAYAAADj6a86AAC7Q0lEQVR4nOzdd3iUVd7G8e/UdBIgIaH3aujSpSMdFJGiuMhaXjv27tpFXcTedxfcXRUXBBQQBAHpRTqhht5LIIT06e8fYwbG0BImTGLuz3XlgnnKOb95ZiaQO+ecxwB4EBERERGRgPB4PByzw65syHCBU//bFhERuWJmA0SZoG44xFvBgAItEREREZGAOWbz8Ft6sKsQERH582pTBszBLkJERERE5M9kZ7b3z4pWqB/h/W2yiIiIXJkMF+zIgqN2SM4GY7ALEhE... | 0 |
math | grade-4 | multiply-unit-fractions-by-whole-numbers-using-models | true | false | Which model represents the product 2×
1
2
? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHoAAACOCAYAAAD+WhzrAAAKjUlEQVR4nO2dT2wc1R2APyeAkA3ZlVpc9RDv+NDm0F1ncyGIEHm3N1xHa/cSLFLk5YIVhLAUiUSuxK6FauFIREZqUHIhlhIU+1ImYJJjZpXUgE+TXeeQUmnHm0OpaaXZBEdAibaHzZs4sQHbzN9975Msyx7pzZv3zfs7M7/X1mg0Gl9+B/+8A7fvwvcNFC3AI23w5Hb4TTv86jFo+/LbRmPhVtDZUnjJ3h3wyBd3mn/8+jHY1dG8CxTR5/ZduLEC//oO/nEHtt3... | 0 |
math | pre-k | squares | true | false | Which shape is a square? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAACc0lEQVR4nO3Uu2qUURSA0T2TZAqvneIDqOAL2Pnwlj6A4KU3tokGjBl+ix/B3sw3GNeqzuHAZhcfZ7Msy3J+PfP5auZyP3OzDPy1083Mw5OZ5/dmnu5mNuc/luXdxbHX4i57/Wjm9NPVenm2m3l5f60Q/tblfubD95kv1zMfr2a2Fzfrg8i4TQ9P1qZmZr7tZ7b7Px7gNv1u6ucysz3uKvwvhEZCaCSERkJoJIRGQmgkhEZCaCSERkJoJIRGQmgkhEZCaCSERkJ... | 0 |
science | grade-5 | predict-heat-flow | true | false | Two solid blocks are heated to the temperatures shown. The blocks are placed so they touch. Which diagram shows the direction heat will flow? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOoAAADGCAYAAADc+hwDAAAPSklEQVR4nO3deXCU933H8fcjrQ6EJMRlQAr3fQgbzGEMBYohdolN4tgZ29hu6jZN23HGbRrPMB3/4Zm0jZ06cduJnTTtTF1PGBc3wUlMAgYcI4gPTmPMLe5TIA5dSICk3e0fXymPVlpJu2jR7g8+r5mdZZ999tnfMvPR73l+z+/wwuFw+Fw9HK6DmiA0hhGRJAt4kJcOo3NgQCZ4566Hw1urk10sEWnPzHwIHKqzF4MyYWxPS7GIJFdNEA7WQlk9lNZBWnWjvaG... | 1 |
math | grade-1 | match-analog-clocks-and-times | false | true | Which clock shows 11:00? | "iVBORw0KGgoAAAANSUhEUgAAAvUAAAEJCAYAAAAU+thyAABTW0lEQVR4nO3deVxU5f4H8M+wDvsgmyjK4oagsrhvgKJp7uZSmSlqpqUlVnbrpyXavXVvZml5b9kmlqVpJeaWmgpu5Qq4gKJsKiKyDSA7zPn9QTMyzsKwM/B5v16+hPOc5XsGvsx3nvOc54gEQRBARERERER6y6C5AyAiIiIiovphUU9EREREpOdY1BMRERER6TkW9UREREREeo5FPRERERGRnmNRT0RERESk51jUExERERHpORb1RERERER6jkU9EREREZGeY1FPRER... | [
"Created with Snap",
"Created with Snap"
] | null | 0 |
math | grade-8 | compare-linear-functions-tables-graphs-and-equations | false | true | Function A and Function B are linear functions. Which statement is true? | "iVBORw0KGgoAAAANSUhEUgAAAjcAAAGlCAYAAAAGbtd7AABQdklEQVR4nO3de3yT5d0/8E+OTZr0RKEH6FlWREHKRFucyEARPO3xwEHdHOqzsYNs6NQ5d8Dp9ri5yTzM06Nubh42FdlAfCbutyIbHkqHByxKi5oWWkpTKA1teuec6/dHl9hAadLed3In6ef9evGqTa9e9zfxm6vfXPc3dzRCCAEiIiKiNKFVOwAiIiIiJbG4ISIiorTC4oaIiIjSCosbSqiHHnoIGo3mhP8uvfRStUOMUFFRAY1Gg40bNyb82AsWLAg/Li+//HLCj09... | [
"The slope of Function A is greater than the slope of Function B.",
"The slope of Function A is less than the slope of Function B."
] | null | 0 |
science | grade-7 | use-scientific-names-to-classify-organisms | true | true | This organism is an eastern gray kangaroo. Its scientific name is Macropus giganteus. Select the organism in the same genus as the eastern gray kangaroo. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOydd5xkRb32v1Wnc5w8sxM2zGxOZCQrIrpE4YIJUAkmFPAVL0mvchEFFEERMCGICIgiXhERQQWRvLAssLuwbM67k2d6Ovc5Ve8fp09Pd8/sssAIiuf7+fRO9wlVdUL3PvU7T/1KaK21aZoopXBxcXFxcXFxcXFx+fdESonH40EUCgXtinsXFxcXFxcXFxeXf3+klEhX3Lu4uLi4uLi4uLi8M1BKId/uRri4uLi4uLi4uLi4TByuwHdxcXFxcXFxcXF5B+E... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADMCAYAAABp7h4wAAEAAElEQVR4nOy9eZxlVXX2/11r73NuVfXczTwo0MyDgooTii+iEQhOCYkDJopJ3sRokld/UdEMvsTEIRqHKIkjUaN5NZr4GjRGo0YUB0BBRBAQmeepx6q695y91/r9se+9dWvopsFWjO99PpZddYY9nLPv5TznedZa4u6eUsLMGGOMMcYYY4wxxhhjjDH+e0JViTEiIg/2UMYY4z6hYxI6xhhjjDHGGGOMMcYY//1hZqSUHuxhjDHGDiGOSegYY4wxxhhjjDHGGGP... | 0 |
math | grade-3 | reflection-rotation-and-translation | false | true | How has this figure been transformed? It has been... | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAF1ElEQVR4nO3d3WtTdxzH8a9t2qRN18Vas2J1UAvDDcVtohto8XSyMQadwh4vWybejsFgbFenf8HY9ZT0cmwwlHnnaCnSMWSWgDr0psKmq219SKvNrCb8dhEVuqY5p/Fnz8P3/QIJlN/5nGNyPuQ0D99uOHjwoHEcR2wYHx8XY4yQV3/e2NiYlaygOY4T6vtZW17CcRxxXddK4PDwsBhjyHuKvLjgvApXXoOVJAChRtEBBSg6oABFBxSg6IACFB1QgKIDClB0QAGKDih... | [
"translated",
"rotated",
"reflected"
] | null | 1 |
science | grade-2 | identify-plants-and-animals | true | false | Select the plant. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADeCAYAAABL7FARAAEAAElEQVR4nOz9d5QsaVbeC//e8BHpbWWWPVXHuz7t7fR4jzeDRwiEkUBCd2TRBV3QJyFk4Aok3P0+QAwSDAxuYAZmGNfT09N+uvuc08ebOuUrK72LDB9x/8g63T3QWnfMP/dbi3etXJWVFZWrKuOJHXs/+9nPK54fJMnRFGRk/nb97fp/5RpFcNWGXR8KCrwhP31d+lvg/u36f/vKyHA0NX0+jl59Xfpb4P7t+v+HdRunQfLqa8rrHfhnH/glhGEy6tmYSsLxU0f... | 1 |
math | grade-1 | open-and-closed-shapes | false | true | Is this shape open or closed? | "iVBORw0KGgoAAAANSUhEUgAAAQkAAABkCAYAAACVdcVUAAAKU0lEQVR4nO3dS1BTWR4G8M+p2SRV6CJhR26WhgGqWnQlib1SfFQryAbB9MYHWI2PsbpIC3RvRlCsqdJSKURxYyC4UZm2VNAdSXolOFXgJL3MTe9yXQSrjktmEW7GHoKS1705N99v19UUHBZ83vM/37nZtra2tgYiok38xewFEFFl+6vZCygXTU1BXVGhriSgLicAAAd6DsLjrTd5ZURy2Sb7dkOkRTYI1JUENFVDPBrb9Ou9J3xo6z8Op1Jr4CqJ5CVVSMSjMWiqBi2... | [
"open",
"closed"
] | null | 1 |
math | grade-3 | compare-area-and-perimeter-of-two-figures | true | false | Which figure has a greater area? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALMAAACgCAYAAABHVl3GAAAHKUlEQVR4nO3cXUjTexzH8c/fh2VPxwydKMkwmcNasFowSnt0YBGDoAcyDCroQqgoaBFd1FXRjVSXPdiNFV0Ei0VdRFEoSJxImZKZk9UisaGITRuttf3OxY7SsAOnnP7bt88Lxvbn/3P7jr35MTaZppRSH78C/RFgLA58UyDKCDkasDAbMM8Dig2A9jGq1N9hvccimh7HX0COP5I8KDEAlvnJ0okywVgcePMZGPwK9EWArPC35AmGTJlmYXayWwAYjwNZ8e9OEGW... | 1 |
math | calculus | identify-graphs-of-continuous-functions | false | true | Is the function f(x) continuous? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AABntElEQVR4nO39e3AU54Eu/j89N83oOkICSQgkbgZbWMIGgy0bGbwQmzWJE8j62Nl1bmeT2pPjXPb8NlvJpnJSdbJsKrVZJ99snKzP1vrYzjq12XjjxDFYxjjIgIUxIINAAoMQoAtCl5FGo7n2Zbp/fwjJGiRgBO+rmYHnU0XZmul59Go00/N06+1uxbIsC0REREREJIQt1QMgIiIiIrqZsGATEREREQnEgk1EREREJBALNtEtZPfu3ViwYAE2b96c6qEQERHdtBQe5Eh... | [
"yes",
"no"
] | null | 1 |
math | grade-2 | fractions-of-a-group | false | true | What fraction of the shapes are squares? | "iVBORw0KGgoAAAANSUhEUgAAAbwAAABKCAYAAADADOFvAAAJiElEQVR4nO3dP2wb1x0H8C//H/+IpCjJpFy7Eg3JsIagEqe6QAzES+FkUjoYcCbbY5BkjWGPNpqsddDN8eYgARpNdtFFBlyg8UR6aCHDFEypVS3KEiX+55G8O3Y4kUbSpuaf4x2P9/2sAnW/90TcV+/de+9srVarBSIiojFnN7oAIiIiPTDwiIjIEhh4RERkCU6jC6DepLbqAICyqAAAAoL6P8vKvMewmoiIzICBN6LSuw389XkNyYyIF9kGKscB9zZ+wY6zMTcScQH... | [
"11/12",
"2/4",
"5/11",
"5/6"
] | null | 3 |
math | grade-1 | certain-probable-unlikely-and-impossible | false | true | If you select a marble without looking, how likely is it that you will pick a black one? | "iVBORw0KGgoAAAANSUhEUgAAAOoAAACcCAYAAABx7zeSAABR5UlEQVR4nO29aZRd13Ue+J1731zvVb0aUKgBQIEkABLgJAO0zUGmKIoyOxEdLyny6k6vyJajZGW1s1Y77W6vTrvb+dUr6nS3HcfxsvQniZZacmzZ7KW2JEuWIoqKxckiQXESQRIggUKhBqBe1atXb7zD2f1jn+m+KpAooKpQBbwtgbfufdMdznf29O19BBERetKTnuxo8a73CfSkJz35YOkBtSc92QXSA2pPerILJHW9T6AnO0vqlRDL59toLkdoLkdoLIcIWxK5fh+... | [
"unlikely",
"probable",
"certain",
"impossible"
] | null | 3 |
math | grade-4 | compare-area-and-perimeter-of-two-figures | true | false | Which figure has a greater area? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMwAAACACAYAAABHuIblAAAFu0lEQVR4nO3dX0iTexzH8c+jTobNI0tRnsqg6JzoD5QXIQSpyK6KpLrIiiQIgqARSEJE0GVFBREIYdSFhDfdRHWfECQUdNkfT0KZwZlYQpnCZvI7F0vPGTvH01e3PdPzfoHM7Xl++kX29uemQ8855xIpaWhKmpiRvjsB+KHMkypLpV8rpLpyyUsknXv+NeixgOLX+ItU9nYqfcUvlzauSNcEIG1iRhqclP5ISb9PSSVfv6cPEAuQrbI03YYkfZuRSmb+dgBAttk... | 1 |
math | grade-6 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACqCAYAAACXpjjmAAANVElEQVR4nO3dX5CV9XkH8OfsX2F3gYWoSIcYkRCtGjH8iUSqViSOOkYQUwW9AI2hMyE3bSY6aTqUNKXaGWd64VhjFa8atY0JJJNkpk06S1IizZCItpFOYVCcyTijZATDLgLLvr1Yds/ZbZvdhbPn/ff5zOC8787iebw4/L6+POe7lSRJkgAAAOqiKe0BAACgSARsAACoIwEbAADqSMAGAIA6ErDz6Ec/SnsCAAD+HwJ23vz4xxFr1kQsWBDxve+lPQ0AAKNU1PTlzOn... | [
"yes",
"no"
] | null | 1 |
math | grade-2 | skip-counting-stories | false | true | Each bracelet has 10 diamonds. How many diamonds are on 3 bracelets? | "iVBORw0KGgoAAAANSUhEUgAAAVcAAACLCAYAAADVutr4AAAjD0lEQVR4nO3dd1zU9R/A8RdThmwVUQQFFRX3IFw4yp1mDrQcpVlWbnPkQDM0V45w5/hpprlHLhypCO5cmZqJiCCCA0VAQMbx++Pw4gRU4I4TfD8fDx8dd9/xvut97/t8P9/P9/vRS467ko4Qb7h5vt0AGOGzRceRCPFq83y7oa/rIIQQoigqkOIak6JH5SB7GpwqSUyKXkHsUoh8kZwV+ZXv4rrzgQm+IRYvTcCAmGKEJhpwKc6Iz6/Y5HeXQuSL5KwoCPkqrt9ct6L... | [
"30",
"39",
"50",
"71"
] | null | 0 |
math | pre-k | addition-sentences-up-to-10-what-does-the-model-show | false | true | Which addition sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABUCAYAAAC4PkCPAAAQXklEQVR4nO3dT2wc130H8O/8252d3SVXoiRTpCmqtizZcF01kgHbB9mHAk7hBLCLGEF7qlEDOTbHHorCLQo06bE9BD66KOCeklNRIDmkKJw6LlrYdWI3sSXb+kNSlkSKf3ZnZ3f+vNfDkOJSpCguOfNmuO/7AQyT9HDe+/IB8k+Pb35jSCkliIiIiIgoE2bREyAiIiIiGiUssImIiIiIMsQCm4iIiIgoQyywiYiIiIgyxAKbiIiIiChDLLCJiIiIiDLEApuIiIiIKEM... | [
"3+3=6",
"2+4=6"
] | null | 1 |
math | grade-3 | reading-schedules | false | true | Look at the following schedule: Which event ends at 4:10 P.M.? | "iVBORw0KGgoAAAANSUhEUgAAAPgAAADACAYAAAAp+K7LAABPSUlEQVR4nO2deThV2xvHv8eUecoshEij5qsSSqXSLBGpNEjDjcZLg+Y0q0vR+Gu4SZRUSopSNInoRtKcUimRebZ+f7hnX9s5h4NE7v48z3keZ+01n/3uNezl/bIuWpwnYGBgaJUIAcDQ+UObux4MDAxNgEBzV4CBgaHpYAycgaEVwxg4A0MrhjFwBoZWDGPgDAytGMbAGRhaMYyBtyAsPcZAeqIcFu5f1NxV4crmAE9oT9fF8YgTzV0Vnuy/5IslB5fhzK3AJivD6/w... | [
"the tennis event",
"the gymnastics event",
"the rowing event",
"the archery event"
] | null | 1 |
science | grade-4 | identify-rocks-using-properties | true | false | Select the one substance that is not a rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEYCAYAAADPtGNgAADUf0lEQVR4nOz9d5Rkd3XuD3/qnMo5p865e3p6pifnUc5IQkIYjHXFBRxwwDY2YF+H9d7LfX3f9fs5XAecwBhjG5GFBEhCQggJpZEmh+6Z7uncVV0553TO+8fpLoQMBkyQZuhnrVpV6ulSdVV999nf797Pfh7V8Zwsj5jAIrKJTWziv4BCC2ZKEKmDQw2H7crPhc3A2sQmfjRYRBgxKY+LrW//XNgMrE1s4kfHRhw15G//THh9/pRNbOLqx2ZwbWITPyFsBtcmNvE... | 2 |
math | grade-1 | which-picture-graph-is-correct | true | true | Kate made lunch. She cut some fruit. Which picture graph shows the right number of each fruit? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAABJDElEQVR4nO3deXTcd33v/+d3mU27ZTteEjl2vCXOQkISSFICWWlDKCYkhALhtnAJEOivJ2k599yTctn6I+nvd0oToBe4v9DL2qQB2gstYLYEA6kdQtJszibvliVrl2akWb/b749xZMszkkbSaBbp9ThHhzPf7fMeSSYvfeb9/XyNIAgCRERERESkLMxqFyAiIiIispgoYIuIiIiIlJECtoiIiIhIGSlgi4iIiIiUkQK2iIiIiEgZKWCLiIiIiJSRAraIiIiISBkpYIu... | null | [
"iVBORw0KGgoAAAANSUhEUgAABWcAAAEOCAYAAADlmqWdAAB4rElEQVR4nO3dd3gc5bn38e/MbNGq2rJsucnYuIExYINJgMSht0AghRISICGhpkKSkzchBVI5qUCSE8ghOUl8EmrqCaEXQ8AOBEKxKZa75aJeVmXrzLx/rK2xrLaSVrsr6fe5rr3Mzs48z723xmb31jP3GK7ruoiIiIiISEYYhpHrEERERERkjDBzHYCIiIiIiIiIiIjIRKTirIiIiIiIiIiIiEgOqDgrIiIiIiIiIiIikgMqzoqIiIiIiIiIiIjkgIqzIiIiIiI... | 0 |
math | algebra-1 | write-compound-inequalities-from-graphs | false | true | What compound inequality describes this graph? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAMJUlEQVR4nO3da1BU5QMG8GcREJbSxUCBVIwyyjQnVK5ym6YZG/KyGslOlDs2hVqTWjY6TVPqqFOTlyQjZbK2yziODJdJQ/2A7q6BLoigYpLkhGBNBgmSl73h/j/Qrn9ClL3Iu2d7fjPOLO/hw/MyZ/HZw3veI7PZbDb4kF27dkEmk0GlUomO4hbOw7twHt6F8/AuvjIPIiJP8RcdwNNaW1tFR/AIzsO7cB7ehfPwLr4yDyIiTxlwwbZYLKitrYXBYMDIkSN5pYLuSFO... | [
"$2<x<5$",
"$x<2$ or $x>5$",
"$x \\leq 2$ or $x>5$",
"$2 \\leq x<5$"
] | null | 3 |
math | grade-6 | interpret-double-bar-graphs | false | true | A food industry researcher compiled the revenues of several pizzerias. Which restaurant made more from pizzas, New York Slice or The Big Cheese? | "iVBORw0KGgoAAAANSUhEUgAAAZQAAAF2CAYAAABJSW4pAABOmklEQVR4nO3deVxO+f//8cfVFZUWUWHIhIwt2SPxGWMLMcg0xhjMZC/bGPtvjN3HOpbigyzDGMaefSwx9syYIkaS7EkoFaFSXb8/3Lq+05QoV9epvO6329w+Xedc57xf5/LpenbO+5z3W6XRaDQIIYQQ78hA6QKEEEIUDRIoQgghdEICpQi4cuUKgwYNYuXKlUqX8tbS0tIYNGgQo0ePVroUIYSOGCpdgMjZ5s2bOXr0aKZlJUuW5KOPPqJbt25YWVlhbW1Nhw4dsLW... | [
"New York Slice",
"The Big Cheese"
] | null | 1 |
math | algebra-1 | write-compound-inequalities-from-graphs | false | true | What compound inequality describes this graph? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAALF0lEQVR4nO3df1DUZR4H8PfCsshCiYoiVKBcSDIiCaYgYNqMd3oIuijZJncSXo7NVN5kpdN0deOEk3eTFv6YxomTy2K8OKDTpPwDBUem2QFCHEzI6eLXVRMaSOCwXxb2/gA2fonArjz7fPf9mnHWffaf9+PX59nPPt/n+/1qrFarFSqSm5sLjUYDo9EoOopd2A/nwn44F/bDubAfRERDaUUHcLSmpibRERyC/XAu7IdzYT+cC/tBRDTUuAvs7u5uVFZWor74Y1hDVvA... | [
"$x \\leq-1$ or $x>3$",
"$x \\leq-1$ or $x \\geq 3$",
"$-1 \\leq x<3$",
"$-1 \\leq x \\leq 3$"
] | null | 1 |
math | grade-4 | elapsed-time | true | true | Look at this clock:What time will it be in 2 hours and 30 minutes? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADICAYAAADSmpa3AABT+ElEQVR4nO3de3zT9fX48VfSNkmbpOkFmpZLW+gFUGgBRVC5eUFEAXXAQN2UCW77DVDcnMKE3cAJ3+82QcHvNsGBDgEFL9yRe8EJgtByEaEFyrVNuTVN0qZpm/z+KE0bkt5v0J7n48Fj+bw/t5OaPR4nn5z3eStcLpcL0Sgu518j/VomGdcyuWgxYS60YHXYsDrysTpsWG78r7Wo9H9z7Xn4K/0waILRqbToAoLQBWjRqwLRqbRoVUHoVVpCNQba6410Do0hLrQjbYL... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA7gAAADgCAYAAAApDMpcAABsP0lEQVR4nO3deXhTZcI28DvpkjRL0wWalqUt0Ja9BWQVyqaAIIsICOKoKKK+AoqjozKCy4AjvO/MCAp+MyMo6CAgRWUH2QsMIAgti0BboGVrU+iSJmmTtE2+P0LThqR7li7377q8SJ5zcs6TNqfez8mzCACYQURERERETmE2m5FlBNIKAU0pUMK0TeQy3gJA7gVESwClLyAAG7hERERERE6TZTDj1wJP14Ko+ennD3h7uhJERERERE1JaqHl3zBfoKPU8u0SEbm... | 0 |
math | grade-3 | read-a-calendar | false | true | What day of the week is March 12? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAF2CAYAAAAbcOzWAABay0lEQVR4nO3deVyU9d7/8RcDIq4gu7vghgvikrkgUqa5pZWZd1r3qdTKtt85x47l4bSd0zHvtDpl55Sd02Jq5pqBmuF2QMUlV1xAUxERETdERVad+f2hTBKoM8owcPl+Ph4+1LmuGT7z4ZqZ93yv73VdLhaLxcI1lp05waqsU6QX5CMiIiIit69RdQ/6evsx2CfA2aXIHcDl2oC/7PQJDhfk8UhgA6q5mrDc6J4iIiIiclMuQNFlM4syjxFUvSaDfRXyxbFM1/5n1dl... | [
"Sunday",
"Saturday"
] | null | 1 |
math | grade-8 | identify-complementary-supplementary-vertical-adjacent-and-congruent-angles | false | true | Which angle is congruent to \angle{1}? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEECAYAAAASx0PMAAAbyUlEQVR4nO3df2zUdx3H8dfBDVp+3RV/ACvQdiQIC9ACI4tZY68EI2wjlIkMuAstiwZ/RAVjosSZtLoY/5gozh8zuqzEuxWhDYUIkk3HsTGdPxauwiYySK+0ky6b3PeA0qO79vyj9saPFtpyd9/73vf5SExsud69u/nH0w+f7+fjSCQSCSGrhMNhFRcXmz0GAAAARmGM2QPgVlVVVQqHw2aPAQAAgFEgsLNMOBxWS0uLtm/fbvYoAAAAGAUCO8s0NjZKkpqbmxUMBs0... | [
"\\angle{2}",
"\\angle{5}",
"\\angle{3}",
"\\angle{4}"
] | null | 3 |
math | kindergarten | flat-and-solid-shapes | true | false | Which shape is flat? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMwAAADMCAYAAAA/IkzyAAAVa0lEQVR4nO3de2wcx30H8O/M7r14d6Qo6kGeHo4fcqJIkSgFqNw87eaPIDbcNE2AIAicIAiCJEDSBnn4r7oImqAtirboE/2r/6RBgQawTdmWZdeRSMmJY8WvWraTWA/LthRJ5pF31JG89870j9l7kZTJEXm3R/L7AQRR2iV3LO93b3Z+s7NCa62vloFzeWDaA6oaRORzBZB0gF09wNYwIK6WtP51LuhmEXW/Q72AezZv/jAUBt4bN2kiImPaA16fBa6UgTN5QOa... | 1 |
math | grade-3 | identify-two-dimensional-shapes | false | true | What shape is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADlCAYAAABpqIBfAAATrElEQVR4nO3d/49l9X3f8fe5Z2b2C7s7O+zgsikWMVsrcfgBR1VQVyIyTQSObQWnElYwX35N+3vyB0QgQSWK/ENFHCm2ZbeNLcVpK/NLaCQTIvWXsiAsy6yTtJDY3S+wy7DrYWZnZ++95/SHwYDpwu7MnHPf59z7ePwKuucpAdJrL+d+PkVd13UAAACNGGQHAADANDGwAQCgQQY2AAA0yMAGAIAGGdgAANAgAxsAABpkYAMAQIMMbAAAaJCBDQAADZrLDmDG1ZejvvT... | [
"hexagon",
"triangle"
] | null | 0 |
math | grade-8 | identify-similar-triangles | false | true | Are these shapes similar? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAB0CAYAAAC/kkW5AAAttklEQVR4nO3deVxU9f7H8RcMyzDsiixGKoK4MBBamtcSwbQ0NzTtqmlq1s1cWqzb1dbb1SzrlnbTtE2zrl2XfldcSjNLUEvFnU1QFLCrwCCLwLDPzO+PgREEDHVkED/Px4MHM2fOnPkeSubNZz7n+7UyGAwGhBBCCCGEEGZhbekBCCGEEEII0ZpIwBZCCCGEEMKMJGALIYQQQghhRhKwbwFbt24lPDwcNzc3fHx8mDRpEtnZ2ZYelhBCCCGEaIAE7BZu8eLFzJ8/n9d... | [
"yes",
"no"
] | null | 1 |
science | grade-3 | identify-rocks-using-properties | true | false | Select the one substance that is not a rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEGCAYAAAD2aACLAABjmUlEQVR4nO19eZCcZ33m0/d9zqUZjWZ02bIky5JvbGNc2BjbiSmTIiQbUmTJrjcE8AZqKZJs2bXJ7roMuwmhCAF2FzbZMoSjwm4KFgpsbGxsgy35kC3J1i2N5p7p7un7Pt79Y/Z559efumdax0gzo++p6pqe7u/u93l/9++1vJpWapsPCNhgwoSJ80C2DhzNA1MVIGIH3h2e/9xqEsuEiQtDwAZs882/z9UXPreaxDJh4sJBHlXVwmfWy3MpJkysfZjkMmFimWC... | 0 |
math | kindergarten | square-corners | true | false | Which shape has 4 square corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAFTklEQVR4nO3dP0yUdxzH8c9zB1wAKWK8UgIKBIsmzsbR3aSrMyGxbg5t7XxzTTu40SaE2bFN3Fl1NhGEIIgBc0aBkyMH99zT4UrTPwoiz/P9Pc/veb8WIJC7L8k7NxA+uSCKomhzX1qqS7VQakYCTq0jkPqK0tc90mCXFGw2oujxjuuz4LPrX0gdz+vtL4a6pMu97QqB06qF0sKutLEvLdalwk6z/Q0iQ5z6iu2mJOl9KBXCf3wDiNNhUweRVHB7CvKC0GCC0GC... | 1 |
science | grade-3 | predict-temperature-changes | true | true | Two identical blocks are heated to different temperatures. The blocks are placed so that they touch each other. Heat can flow from one block to another but cannot escape from the blocks. Later, the temperature of each block is measured again. Which pair of temperatures is possible? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAACgCAYAAADq8hJGAAAbk0lEQVR4nO3deXwV1f3/8ddds+8JCSEhCZCEHQQDUTYRUVBQUbQu6M+61WoVrdqqdfsqVsVWxLXVurTFVkFBFJS1iOyEJcQEQiAJZN9Xstybe+/8/rhhQrwBEkhyb8jn+XiIycyZmXMzN+/M/cyZGY2iKApCCAFond0BIYTrkEAQQqgkEIQQKgkEIYRKAkEIoZJAEEKoJBCEECoJBCGESgJBCKGSQBBCqCQQhBAqCQQhhEoCQQihkkAQQqj0zu5AZ6gz1fHGmkX8ePg... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAiAAAAC4CAYAAADaI1cbAAAoF0lEQVR4nO3deXwU9f3H8dduNjeEnCRAIJzhkkORQxEUT1Cxar3q0V+r1Xr8vKpWaz36U2w9Wo+2amvr8Wv1V2+rooJoFblBrphwhDsBct/k2uzu/P7YZCEkQoDNzGzyfj4eGpidnf0mM7zz2ZnPfNcBGIiIAIZhUOiGrXVQ4wWP0kFEgsTlgJ5hMCwGUiPAgQoQEWlW2GiwstrqUYhIVzc5DlxWD0JE7GNLnf9rnwgYHut/tyIiEgw1XthcCwVuyK0Dp9UDEhH... | 0 |
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 = 45? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAmm0lEQVR4nO3dfXSU5Z3/8U8SQoZgyGBpTIYAk6NiEhZJNtuTpLqQsAUFwgHaZXkoLQ/xgVI9haPdwx8uRPds2W4pAY6VCpaH3XO2stZGF48I/CrR3/52BrdzHIqEJ5UB8qTFZRJDmEBgfn8o04ZkYkKuzD2ZvF9/cV/X5P5+L8+RfM7NNdcdFwwGgwIAAABgRLzVDQAAAACxhIANAAAAGETABgAAAAwiYAMAAAAGEbABAAAAgwjYAAAAgEEEbAAAAMCgqArYgUBAgUD... | [
"39",
"88"
] | null | 0 |
math | kindergarten | circles | true | false | Which shape is a circle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJgAAACaCAYAAABVCoEqAAADzklEQVR4nO3au24USRSA4X/Gl4DLkrHaBwBCQh6DZ+U1yAi55OtNbbCE8agJGiMvjI09U6er6tT/SyVVqaTSCT511KtpmqaTC/h0DmcbuJww27nDFTw+gGcP4O9jWJ18naa3p7XHsoy9+gsOP57Ph3+O4cXDWZ/Zrp1t4P0X+PcCPpzD+vRyvhCXlejxwWwJ4PMG1ptrF2YlurL0bYJ13VEsewKz0ARmoQnMQhOYhSYwC01gFprALDSBWWgCs9AEZqEJzEITmG3... | 1 |
math | kindergarten | one-more-and-one-less-with-pictures-up-to-10 | true | true | Count the presents in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAAtNklEQVR4nO3daXAkaX7X8e+TR2WdKqlKR0tqdauvmXFPz+zsjvcyXnZ9rNk1hI3B2HhtwNgYXhABwR3B9cJEELARXAtBBIQXG8y5doBNENhe316MZ4ddz+5sHzPdPS21bqlKR91XZj68yFJJ6tZRqkt9/D8TM6NWVeVRTz2Rv37qn8+jtNYaIYQQQgghRE8YZ30AQgghhBBCPEskYAshhBBCCNFDErCFEEIIIYToIQnYQgghhBBC9JAEbCGEEEIIIXpIArYQQgghhBA... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA7sAAAB+CAYAAADlVwZsAABSaklEQVR4nO3dZ5AjaX7f+e+TmUDCowrlXfueme2xa2dJ7XJXJJdLI5IyNKIRKTox4u5CF6eTqIsTdRdB6RTSRkg6UYqLk8QVPUUnUSIVIrm7olvyuDPa5czOdI9rU9VdvoAy8C4zn3uRKADVXQYFU1Vd8/9sbHdNA0gk8OAp/J58nAI0QgghhBBCiL7QWrNWgzslyLvgSNoW4kRYCuImXI/ARBAU0tgVQgghhBCib9aqmpdzp30WQry7vZgA67RPQgghhBBCiPP... | 0 |
science | grade-4 | read-a-thermometer | false | true | Select the temperature shown by this thermometer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAGQCAYAAADbbRRJAAD00UlEQVR4nOydeXxU9b3+nzP7klkyk0lCMtmAJBDCKgJB1AqC2oKtG9pV1Far7a0b2l+tK6jttVK1ty3Vtgq39/ZW1G7ghoLKFkCUsCQhCZCEmeyZZNYzy5mZ8/tjZg5ZzplsM1m/79eLF8k5Z875JoTJcz7n+TwfimVZFgQCgUAgEAgEAmFSIBrrBRAIBAKBQCAQCITEQQQ+gUAgEAgEAoEwiSACn0AgEAgEAoFAmEQQgU8gEAgEAoFAIEwiiMAnEAgEAoFAIBAmEUT... | [
"24°C",
"26°C",
"20°C",
"16°C"
] | null | 2 |
math | grade-1 | interpret-bar-graphs-ii | false | true | Patty went to the zoo and saw some giraffes, hippos, and elephants. She made a bar graph of the animals at the zoo: Did she see more hippos or giraffes? | "iVBORw0KGgoAAAANSUhEUgAAAfIAAAFfCAYAAAC1E07gAAB/cklEQVR4nOzdd3wd1Z3//9eUO7frXnVLluXecQFTTTM9wFI2IaSxCyEk2ZBG8k37JSSkbbLJbjZA2iOdsEsqWUpIocaGhG7ccME2tmVLVpduv9Pn98c1AgdsS7hIMp/n48EjunNn5n5mIut9z5kzZ5QgCAKEEEIIMS6po12AEEIIIV4/CXIhhBBiHJMgF0IIIcYxCXIhhBBiHJMgF0IIIcYxCXIhhBBiHJMgF0IIIcYxCXIhhBBiHJMgF0IIIcYxCXIhhBBiHJMgF0I... | [
" hippos",
" giraffes"
] | null | 0 |
science | grade-5 | identify-mammals-birds-fish-reptiles-and-amphibians | true | false | Select the fish. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAAEAAElEQVR4nOz9yY9tWXaniX27Oe3trX9mr3/+vI/w8PBgtOyZDDKTqmyqMgsoJFIEEgmVoIEGgqCZ/gJNBQGqKg1UKqmUlaxEZSmTya7IYBtBRgTDI7z31z97Zvasu+3pd6fB9SA5iAQc8kkJ4AEMuDjYZsCFfWedtdfvt9YW312E8FIPBoq/vf72+p/ltXLwUQknHUw0/PR4fV/+Lbh/e/3P/RooeKm3/ly4v74v/xbcv73+/+H6Macm/PU9/ZMWZr/2fwUghL9... | 0 |
math | kindergarten | curved-parts | true | false | Which shape has a curved part? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAJp0lEQVR4nO3d628U1xkG8OfMzox39mZ715giBIlIQpO6EimQJqnaRilRvqRNm/+wlfKlH9o0JUortaBGNKmwaGlRgBIoUJyAbbxe7+7szOzcTj8soKSQgM+cOXN7fxKyrNXuHDyP3nOZM7OMc87XfeCaA4wjIOQgJDGdAe0a8FwD2GsCbH3K+eoo62aRMnu5A+hXndkv+0zg281ZCglJahwBVybAHR/4zAG0UTh7gUJGZGrXZpkCADsCtOhLLxAi0/1MBRzQsm0... | 0 |
math | grade-7 | classify-quadrilaterals | false | true | What name best describes this shape? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADpCAYAAAAeakAkAAAJwElEQVR4nO3dT4geZx3A8d8ks7NJbJpcREShQa3QU5KbYNEiopUUql4EL8lNhPinvSjiwYCo9FAi5G7qVagtORS82IM5CGLQW4lCAoKeJMUlyb47yeNh3t3shk123pff+04y+/lAeF7eneedZ3L6zvDsu1UppQQAAJDiwNALAACAMRHYAACQSGADAEAigQ0AAIkENgAAJBLYAACQSGADAEAigQ0AAInqvgeev7wW90tEKSVKiSgREdOxe787bvNnpWx/3f3w/rb3ts+... | [
"trapezoid",
"rectangle",
"square",
"parallelogram"
] | null | 1 |
math | algebra-1 | compare-linear-functions-tables-graphs-and-equations | false | true | Function A and Function B are linear functions. Which statement is true? | "iVBORw0KGgoAAAANSUhEUgAAARAAAACZCAYAAADnwmWxAAAbJ0lEQVR4nO3deVhV1f7H8fcBFEERFTQwR+BqagrpUUDRNBWn61SgYeFQ6a3M1F/eMofsKbuOJXFxSMshp1I0p4tp1xAzBdScCyo1U5FUFJlFDuv3B5eTJ6bDDjhA39fz+Dy6xy+4z4e91t6spVNKKYQQQgMrSxcghKi6JECEEJpJgAghNDMrQJydndHpdEX+OXXqVDmXab61a9ei0+nw8vKq8HNHRUUZvycdO3as8PP/FZw7d67Ya7FevXqWLtHE2LFj0el0TJkypUL... | [
"The y-intercept of Function A is greater than the y-intercept of Function B.",
"The y-intercept of Function A is less than the y-intercept of Function B."
] | null | 0 |
science | grade-2 | classify-rocks-and-minerals-by-color-and-shape | true | false | Select the blue mineral. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAADArUlEQVR4nOz9Z7Bk95neCf6OPye9z+tt+SqgABSAAgEQJAHQdINgS+pWO6mlkFmtJjQT+rQRayK0mpjQB0WMFLszs7MxMbGa3Va31GqxmwYkSIIkCMKjCuXrVtWtut6n9+fk8fvh3CoCIFjsEdndZPd9Iqoyb9qTmf/nvO//Nc8rhGEYcoADHOBjIf5lH8ABDvCLjAOCHOAA98EBQQ5wgPvggCAHOMB9cECQAxzgPjggyAEOcB8cEOQAB7gPDghygAPcBwcEOcA... | 0 |
math | pre-k | cones | true | false | Which shape is a cone? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAARKElEQVR4nO2dXWwc13XH//fO7HL5sfwQP0JJtkw3EZM6VYkotSSjkIWgVoNIEFwHTVAUrvoSBQXaJGibpzZ+ivvUFnFrtGjg+iXKQ5AESGqDKprID5GQ1mIbCVKaKhbtyrKokhRJieSSS+7uzNw+3P2YWa7I3eW9O3dmz+9BO5y5O/docfbu+d9z7xkmhBBzeeDdLJBxAUeAIIzDZkDaAg52AR9KAmwuJ8TUathmEUT9HO0F7Oms/GNvEvhot/RqgjCNjAu8sw7... | 2 |
math | kindergarten | equal-sides | true | false | Which shape has 5 equal sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAADc0lEQVR4nO3bvU6UURSF4TU/UPBnp7G0UCms4UK9Ay8HWgsRWyNaMswkIJPP4gtEQsnMOnvv8z7VTCY52cWb1c1kGIbh6k76sZIWa+l+EPBi84l0OJPe70lvdqXJ1e0wnF23PguVnR5J88vV+OXtrvRxf6wQeKnFWrpYSr/upO8raXp9P/5AZNikw9nYlCTdrKXp+r8fgE16aOrvIE3bnoJeEBosCA0WhAYLQoMFocGC0GBBaLAgNFgQGiwIDRaEBgtCgwWhwYL... | 1 |
math | grade-5 | multiplying-fractions-by-whole-numbers-choose-the-model | true | false | Which model represents the product 4×
1
8
? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAaAAAACOCAYAAAB359yrAAAFwElEQVR4nO3dPW9TZxjH4dvhRVZfqIeqVadkackGmcpmC6ljJbYsreJvAEtnO5+AtSOR+gno2MWHsQuBrS9APJWKSrVCQYYSnQ6W21JZkYif9D6E65IehQjp4Sj/4YelSKdV13X98HnEz08jHh9EvKgDAIo73Yp491TEx29FfHg2ovXwWV1/v5/9WAC8ST49F3H6p6ezbz46G3H+7VmdAKC0xwcRPzyJ+OV5xI9PI1b2X8z+QnwAOE7vnpq1JiLij4OIlYN//QU... | 0 |
math | grade-5 | compare-decimals-using-grids | false | true | Which decimal is greater than the one shown in this diagram? | "iVBORw0KGgoAAAANSUhEUgAAAJwAAACcCAYAAACKuMJNAAACMElEQVR4nO3awUkDURhG0TeSWlKRhQhiFRKwECuymXE1Elyp4H285Jydwi+zuBkCftu+7/uAyMPsB+C+nK5/2C7nWc/BjdufP8YYV284sVE4ff/F0+PLn/7Q2/vrkrfHJ++3tsvZ7Q/vrvkOR0pwpARHSnCkBEdKcKQER0pwpARHSnCkBEdKcKQER2o7Fr/mSfynY2linrTQ1GfFW/MkphIcKcGREhwpwZESHCnBkRIcKcGREhwpwZESHCnBkTJPImGeNMyTilvzJKY... | [
"0.32",
"0.3",
"0.37",
"0.33"
] | null | 2 |
math | grade-1 | select-two-dimensional-shapes | true | false | Which shape is a square? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACbCAYAAACao4KyAAACdklEQVR4nO3UO4pUURRA0VPVn6D9RSqGBuoQHJjjcGLOwA8Y2mLWrQ22XTyDh2BusQvKtaJ7uXA4weZulmVZLm9nPt3MXO9m7paBf3a6mXlwMvPiYubp+czm8ueyvLs69Focs9cPZ04/3qyXZ+czr+6tFcK/ut7NvP8x8+V25sPNzPbqbn0QGfv04GRtambm+25mu/vrAfbpT1O/lpntYVfhfyE0EkIjITQSQiMhNBJCIyE0EkIjITQSQiMhNBJCIyE0Eqf7HPb... | 0 |
math | grade-8 | transversals-of-parallel-lines-name-angle-pairs | false | true | \line{IK} and \line{LN} are parallel lines. Which angles are alternate interior angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADSCAYAAABw17dKAAAfCUlEQVR4nO3df2xV9f3H8de9V670MrzVO4tiqu2orruALf0xCkPajn9sdNK7zMXRBbrIYhbqWsiccZmhZNlmnPF7O9vEDFkvZNxl7o9ejApmNm3BXS/s3nKhUo3pj2shMG6A9uqs/LD0+wehEflZetvTe+/zkdxkuad8zgvnjS8+vM/9mEZHR0cFAAAAIC7MRgcAAAAAkgkFGwAAAIgjCjYAAAAQRxRsAAAAII4SqmC73W5t3bp1Utbu6+uTyWTSu+++e9m1Tz75RCa... | [
"\\angle{LMJ} and \\angle{KJH}",
"\\angle{LMJ} and \\angle{IJH}",
"\\angle{LMJ} and \\angle{KJM}",
"\\angle{LMJ} and \\angle{NMJ}"
] | null | 2 |
math | grade-2 | names-and-values-of-common-coins | false | true | How much is this coin worth? | "iVBORw0KGgoAAAANSUhEUgAAAMMAAADDCAYAAAA/f6WqAACD+klEQVR4nO19fWyUdbr2tZvTMpTazhQc6MdUS+kMWIS3nSotYLQfAQ7RtHgiCwlsqcmusuyiq0eIkF1kN2jAdVfZZcHdREBI6GKOQtbwAumHG4GCtvSFpcK0lNFOvxih0yllGEpyeP94et3ze55OSwsFAb0TU2xnns/f/bu/rvu6f3T9+nX8IDeW//3f/5UH9eMf//hH3+W1DCT3ynXejfKjH5QhvHBR3eqC6vD5+jxgc2zsDb/X6ffDHBuLTr8fcRbLLV3DcN3L/S4... | [
"5 cents",
"10 cents",
"1 cent",
"25 cents"
] | null | 3 |
science | grade-2 | identify-solids-and-liquids | true | false | Select the solid. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AABIuElEQVR4nO2dd5hTVfrHP7ekJ5PJ9BkYqvTeRCyIDQULuoC9dxFRV7GLbS3Y1s6qWJdVwO5aEDsWBAtNQDoDw/SSSSY9957fHzcZBpwBdPFHgHyeJ89Ayr3nnHxzyvu+5z3Sjw1CdHOASyFNmv9X/BqsCkB5FDwqHJppPC+nBZlmT+FSoJvD+HejtvV5OS3INHuSpP5iYutz8p4pSpo0rZMWZZqUIy3KNClHWpRpUo60KNOkHGlRAoTDEAyCEDt/b5q/HHVPF2C... | 0 |
math | grade-2 | which-bar-graph-is-correct | true | false |
Ed went on a picnic and brought three bowls. He brought more knives than bowls. He brought the same number of cups and coolers as bowls. Ed made a bar graph of the supplies he brought. Which is his bar graph? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAd4AAAEOCAYAAAAnoHbsAABivklEQVR4nO3deZxcVZ3w/885996q6r2TdJZOhyQkYQmEfU1YAwIiAVE2HRUV4QEE8fmNC8yjo46PMC6jPqLOIOggLqgzboPKoiLIHgwhQIKsIYTs6XR6reXee875/XGrqruTACHprkp3f9951atruVV1bqWqvnXOPef7Vc45tyGEl7LQYyB2CCGEEGKI+AoaPNinFianQG0oOPd4d7WbJYQQQox+xzSC/2I2udCagv3qkqgshBBCiKHRY+D5PlgfwgtZ0N1xcoM... | 1 |
math | algebra-2 | solve-a-triangle | false | true | In solving this triangle, which law must you use first? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEPCAYAAAB4ALMPAAAv0ElEQVR4nO3deXTU9b3/8dd3MglDxiQkhiSYBLKQWFl+QQO0LEJRQaAa1uAFqSLeqhWwKIuyCC6opaK2KtZeK6JVUHEDPYi2SBVRBCJQFy4gBkyQVSBAIOvM7w8vMQxBtpn5zPJ8nOM5kkkyL2zV1xnfmZfldrvdAgAAAOAVNtMBAAAAgFBCwQYAAAC8qK5gr1u3TpZlafbs2Sf95GuvvVaJiYnav3+/X8IBAAAAwcZ+7E8yMzMlSdu2bWvwEz/77DPNnz9fTz75pOL... | [
"Law of Sines",
"Law of Cosines"
] | null | 0 |
math | algebra-1 | identify-direct-variation-and-inverse-variation | true | false | Which equation shows inverse variation? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAC4AAAArCAYAAAAHdLqEAAADbUlEQVR4nO2XzUs6exSHP3ORwl5JKCohdGW6sUVQi2hTtLFVRBC0qEV/QVESRbgpSlxJCykkQmbRC7iLaNFGqASX1UKpRENoERqWvYx+7uJeBG++DJZzf4EPzGLOmRkfz5yZ7xmBJPEL+ev/FiiXqrjSVMWVpiquNLLEbTYbDg4OsvuXl5eYm5vD+/t7xcRKIUs8nU7DZrMBAB4eHjA+Po6RkRHU1tZWVK4olMHt7S0FQaDf72dfXx9dLpec0yqKLHGSHBoaYmt... | 1 |
math | grade-4 | nets-of-three-dimensional-figures | true | true | Which figure will this net make? | "iVBORw0KGgoAAAANSUhEUgAAAKYAAADNCAYAAAAyuwvuAAAO4UlEQVR4nO3dfWwUZR4H8O92KXMtrIsvo0jpotdeZY+Cipc9jChESlvOpBCDV8CE9rQYL1BARGxKKLkmVCEX+naJF1oUSBQq5KJNPPqGgROT2twhXkuXrFelW4p446ndBZqlTPf+qLtupy3b3Z2dl2d+n//cbru/h3x9dmae3zxj8vv9fhCiMQlqF0DIeCiYMmltbUVra6vaZTCDgimDqqoqZGdnIzs7G1VVVWqXwwQTHWPGRhAEpKenw+PxAAAsFgt6enrA87zKlek... | null | [
"iVBORw0KGgoAAAANSUhEUgAAASIAAADNCAYAAAAc231VAAAhQElEQVR4nO3de1iUdd748TcMB0URFMcTAqaIIiKlG+pm6ZOI9uxPrX6Zmc+TmofVVQutzNXLQ1au9jzrAVvzfKpW3NpWrS1FLdy0RVtTBAEhFRA8jQcOAg4wzPPHNCyeOdwzN3PP53VdXl7AzH1/vo5+/N7fw+frYjabzQjRwLi4uKgdgrAjV7UDEEIISUQK2bdvH/v27VM7DCEckiQiBaxYsYLo6Giio6NZsWKF2uEI4XBcZIyofgwGA8HBwRQWFgLg7e3NmTN... | 0 |
math | pre-k | compare-size-weight-and-capacity | true | false |
Which table is shorter? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANwAAAB8CAYAAAACRt5vAAAZd0lEQVR4nO2da3hU133uf3Of0dyk0UhC0mwZMGChEY6xibHGccCp40g0dmsgwSd2mmAH5/Q5fQIk52mbPil27CROWuw6OT1uGuo6bXCLXRPHOC2cXhzbyREYX4MlwIDA0qAL0kiai0YazbUfhDAYSaOZvffowvp9sTUze+0/M+vda613rfVfmkwmk+mJw6lhiKQgmUEgECiEXgN2HSwtggojaHpGM5nD4ZkOSyCY/6x2gP7k8NgflUa4xjqmRoFAoAyRFLwfhe4... | 0 |
math | grade-4 | sides-and-angles-of-quadrilaterals | true | false | Which quadrilateral appears to have exactly 1 pair of parallel sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAACuCAYAAAAvfwH9AAAC+klEQVR4nO3VvW4UBxiG0W/XPwXhpyPKBSSpqei4IC6IC6KkoQbSx2ltsITj1aQYWUqNtXoY+5xqR9O8Wu2z325ZluXiZuav65mrw8ztMsCRnO5mnp3M/P5k5tfzmd3F92X5cFnPgsfn9fOZ0y/X68Nv5zN//rLWCRzH1WHm07eZv29mPl/P7C9v1xfig+N7drK2NjPz9TCzP/zvBXB8d639u8zs2ynwuAkQQgKEkAAhJEAICRBCAoSQACEkQAgJEEIChJAAISR... | 1 |
math | pre-k | what-comes-next | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD1CAYAAAAlI4EUAAAcQ0lEQVR4nO3da5BcdZnH8d853dM9mUwyiDERsEIwgCKGWLtEyoJgUQteqa3Ce61Vi8tW+YKl9sXWKm90V9E3rpayFEGWrEi0cEvAAgWCIYkmJtEwQUPASUIMJBOSydwyw2Sme6Yv55x90U4uZCbTp/tc//39VFkUmenzf3h80uc3p//njOV5nicAAAAARrDjLgAAAABAcAj4AAAAgEEI+AAAAIBBCPgAAACAQQj4AAAAgEEI+AAAAIBBCPgAAACAQQj4AAAAgEEI+AA... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAAD1CAYAAACRDCAyAAAhj0lEQVR4nO3da3Ad9Znn8V/3ucmyZDkMI3GZcmBsIEzimJrFYaeMk0qtMyEJtVVc5lJL7ZJlqlJbDLUvtjbhTTKbIXnDZCpkU5gwsGHimSJbAbIhwZgYbIJje+LYJLZhZIzHYEuRZd0sWZaOpHPp7n1xkC3ZknX6nL7391OVF7ak7scPT47+v9Pd/2M4juMIAAAAQCIYhhF2CZFkhl0AAAAAAPiN4AMAAAAg8Qg+AAAAABKP4AMAAAAg8Qg+AAAAABKP4AMAAAA... | 0 |
math | grade-1 | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABaA0lEQVR4nO3de1yUZfo/8A+IAzKMB4aDQ6UDKmgybYUFeEQpbUuw0krpt0e13drdZHc7bLBbW7vYeRfqW9uuutseQtu0EuwgiYGaYEmnQQ3MYbQaHGQ8DYMwcvj9wc7EwBzuOTEcPu/Xy5fMzP08z53NvLjmfq77uoK6u7u7QUREREREPhEc6AkQEREREQ0nDLCJiIiIiHyIATYRERERkQ8xwCYiIiIi8iEG2EREREREPhQS6AlQ4F0wd6K1vQOmto6ev9t7/g4ZFQx... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABk50lEQVR4nO3de1zUVf4/8BeIgwLjheEilDqgQibTVliAlaKUdhGsNC/026vSbu0F2traxd1aa7V2u0FtfXdTd9sbamkl2JYkBlqIJd0GNLCGMW1wkFFhGJTh9vuDnYnLXM7cB3g9Hw8ezuWc83mLMzXvOee8T0Bvb28viIiIiIjILQICAnwdApHPBfo6ACIiIiIiIhpZmGgSERERERGRWzHRJCIiIiIiIrdioklERERERERuxUSTiIiIiIiI3CrI1wGQ710wdqO... | 0 |
math | grade-2 | equal-sides | true | false | Which shape has 3 equal sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAGmElEQVR4nO3dz05bRxQG8O/6T2SFUC+wWuEqkuWKNgiQ0kLNohKbSGyaTaSkFF6gz9TX6a55gzRddFe6hQQpFOt2MaUlFuBrz8yZc2a+3yoR0uWG+8X4zpzvuqrruj69BH6/AM6nwFUNIm+dClhtAxsPgc8eANXph7p+fZb6tChn+58AnbcX7i/rD4CvVlwKiXydT4E374E/L4HfLoDW2ZX7AkNGIa22XaYA4N0UaE1vfIEopOtM/V0DrbSnQqVg0EgEg0YiGDQ... | 0 |
math | pre-k | classify-shapes-by-color | true | false | Which triangle is blue? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAFhUlEQVR4nO3dX09TdxzH8U9BzeJ0W2KyZXfejD0Eb/cA9tiITm7wRkGJyi4QszRL/JONCwudGGpgkdGIMyWDIbFpodYeTs8uKs5/5Veg/Z6e33m/riwl5XvxDsYPxGaiKIrWG1KxJlVDaTcScGTHMtLpQem7k9I3J6TM+usoylfiPgs+O/eFdGyl1nrw7Qnp+89bFQJHVQ2l5R3pn4b0V00aqOy2niAydNPpwVZTkrQdSgPhO08A3bTXVBBJA/GegrQgNJggNJg... | 2 |
math | calculus | find-inverse-functions-and-relations | false | true | The graph below shows a function. Is its inverse also a function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABxU0lEQVR4nO3de3Rc1Z0n+m+9VarSy5IsybIlv7BBRjI2GLCxwbQJEEjo2EnaJDcPetHpIRPyWr16blZuJmuSRTO5q5v0Cg1MJjOZANO5Nx1ugA4Y4Rgw2JHBxsKWLdnYQrZlybIeJdW7Tp1HnXP/KJds2bJVJZ2teuj7WSsrqFznp5/OObX37+zaZx+LYRgGiIiIiIjIFNZsJ0BEREREVEhYYBMRERERmYgFNhERERGRiVhgE9G4O++8E6+++ur4z3/84x9xww03QNf... | [
"yes",
"no"
] | null | 1 |
math | grade-6 | identify-equivalent-expressions-using-strip-models | false | true | This model represents the expression 6+6w. Which expression is equivalent to 6+6w? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAA+CAYAAAARUWyzAAAICklEQVR4nO3dTWwcdx3G8Wdn1vviXTtOHHv90hjXSey81nlBTURfaIFESVuFoJAigQQIEJcIDrxdqGihghNSQULigJoKpB4aqEqb0B5KpEApJM2LSdO8NCGO48T2xk7qtbNe78vsDAc7myxNIhBjj2f7/Zxm/quxnrmsH//839mA4ziOJA2M2nrhbxM6NWBpIucI7lraFNTPv1BbOv/+nnGdHbI8TAQAuJNYOKAV91Tp6w9Wq7nO8DoOAJ8JStKZoaKe3Tuuttaoupa... | [
"6w+6",
"5+7w",
"12w",
"12+w"
] | null | 0 |
math | kindergarten | am-or-pm | false | true | Jen is jumping in the mud on a rainy afternoon. Her watch shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABaCAYAAACCNCH/AAAH+UlEQVR4nO3d32tkZxkH8Ce7qTFt6TkXtQsqDWL9UXDnCIpVyq4Vus1VxT8gWVGb4EWKF83kynuh2yu7oGQXkUwKsr1LEJzthVossosIk4IUrbDTWhRb60ytbGu2O16kCdPZTTpn9uyezOTzgb1I5rzzPmeYi+++ed7zjnU6nU4AAACFOFR2AQAAMEoEbAAAKJCADQAABRKwAQCgQAI2AAAUSMAGAIACCdgAAFCg8X4v3HhtM57/y7ux+d7NLIdhNvmRsXjosxPx+SN... | [
"1:00 P.M.",
"1:00 A.M."
] | null | 0 |
math | grade-1 | rhombuses | true | false | Which shape is a rhombus? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAADzklEQVR4nO3aT1ITQRTH8d8kwAJBXWl5APUIXMWLeRQ9BGs2qHtxSyAFSGpcjCj/CUnP637vfb+rTE1V11t8apLpTtf3fX90If2YS7OFdNmLaO02Oml3Kr3flt5uSd3Red/vH9ceiyK391La+D4fLt5tSR9fDAqJ1m22kA5PpZ8X0re5NDm+HG6AjEq2Ox1MSdLJQposrt0gKtmVqd+9NKk7CmUJaGQS0MgkoJFJQCOTgEYmAY1MAhqZBDQyCWhkEtDIJKCRSUA... | 1 |
math | kindergarten | ordinal-numbers-up-to-fifth | false | true | The first picture is a tractor. Which picture is second? first | "iVBORw0KGgoAAAANSUhEUgAAAaUAAABdCAYAAAAFZHluAAAjNUlEQVR4nO2deVyU1f7HP2cWmWGQQTRUKHc0SwVNLEtQU0vvvaSVqdktNW/aTcVcui3em5Jbi5qpueWW/W65lBtdTXOBtK5dMHApVKAQE8wSRQZmhmE4vz/ObA+zPTPMwOCc9+tVDs9znvOcOa/5Pt/nnO9GKKUUHA6Hw+EEAJKGHgCHw+FwOGa4UuJwOBxOwOA3pXTTQNH+4C30PFqOmwa+Q8jhcDgc93illPaUGJB6XudS2aT/UY3CyhrklBkx4VSl1wPkcDgcTvD... | [
"barn",
"tractor",
"sun"
] | null | 0 |
science | grade-4 | identify-vertebrates-and-invertebrates | true | false | Select the vertebrate. Hint: Mammals, birds, fish, reptiles, and amphibians are vertebrates. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAADzFklEQVR4nOz9ybNtd3bfiX1+3W5Od8/t3n0NHh7wgASQHcBsSCWTFEWKZVuyo8L2xFFDTxyO8MBTD/wXeFgDR1R44KFLjqrSoEIuh6QqiZREMUlmMjORCSR6vP7d/p52d7/Og98+5z4kU3YyoUE5gjviBu67OGefffZev/Vb67u+67vEX81jfHMIY8XfHX93/I/yWHr4cA3PO9jV8PvT9Hf5d4b7d8f/2I+xgjeH6feVv/67/DvD/bvj/x+OjZ3aeP03/ate+L/... | 3 |
math | kindergarten | rectangles | true | false | Which shape is a rectangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAE+0lEQVR4nO3dPW8UVxSH8f/6rSCQdInyAUjadHw6LCQ3bmjoaJBSREoRiSJSikgpkNKYypVlzIKEk8i2HLC0i9d4d2ZuismVd0Owvd6ZM/fl+VVYBrHFo327R/f0nHPucCz1R9KwlAonYGErPenOsnT3lvTVmtQ7PHfu+aDrh4WU3ftcWnk5qn/4ek369rO6QmBRw1J6cSodjKW9kbQ0KOpfEBmadGe5bkqS3pfSUjn1C6BJvqmJk5a6fSjIBaHBBKHBBKHBBKH... | 1 |
math | algebra-2 | classify-variation | true | false | What does this equation show? Assume k is a non-zero constant. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdsAAAA2CAYAAACP1zPcAAAOQ0lEQVR4nO3ce1BU5f8H8PdhceUmICIIKGHeE++iplSuKUleU7MaK51R0VBLB0M0+kMbrVE0p2kcG9RKnS6DmppIU06oKYgiqUPm5Wuk4gUhFXQ3louf3x8M+2OF3T2Ap0V8v2aYcZ99nvN8zvHznM/uOQcUEZGbZcD/TMC9SqBCQERERI3gqgCtdEAXDyBQDyg3zSLHS5wdFhERUfM02BtwvWiqehGkB7p5VlViIiIiarh7lcB5I3CjDLhgAlxKKqreYKElIiJ... | 0 |
math | kindergarten | represent-numbers-up-to-10 | true | false | Which group has 10 hexagons? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAR4AAAEcCAYAAAARAdvdAAAU2klEQVR4nO3dP09jWZrH8efafV0WYHONsdGKlSphd9UB8UDoqElABEUAgqRfxbwfEARMgCAhaRG1QJMSlGYHaSO0XRhjly9YLt+x7wYUO6ini8L2+Xcv309WasnnNI/5cf+c8xwvjuP4t57IVUck7Iv8IxYAUOoHT6SQFfmPCZG5nIj325c4/mvb9rQAvBV/Kor88PfO4z/+LSfyX5OPqQQAKoV9kb89iPxvT+S/OyKZ9j8e/wOhA0CXQvYxY0RE7vsimf6z/wA... | 0 |
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