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-6 | front-side-and-top-view | true | true | If you look at this object from the side, what will you see? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAE2CAYAAABbdeVqAABbn0lEQVR4nO39eVjU97k//j+HAVlkcyWABogWjdUoEEm0+QSmJ40xVQGb/uIWRX8VTVKDCznNJ1YYCMmpDYvU1AV6FE2F2ObYUayGNJHBNCRKET5qjXI0DiIQxGXYQRnm+8f4fgsIyDI7z8d1neskbHPT6VXv98v7dT8lWq1WCyIiIiIi0gsbUxdARERERGRN2GATEREREekRG2wiIiIiIj1ig01EREREpEdssGnQ1Go1Vq5cCYlEgvj4eKjValOXRERERGQyEm4RocF... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA8gAAAE2CAYAAAC9VbtCAABl80lEQVR4nO3dfVjT970//mcIyI3hxlsKaIHq0DmtIhWt61fI1tXaqYDz/CrqFL0m2nYWFXrmqQUCpZ65Asq0VmBH0U7QzeOJ4tHRtRpsyyoM5ahzyrRGESjeBsKtEvL7IyYKCnKT5JOE5+O6dtVCbl4scxfPz/v1eb1EWq1WCyIiIiIiMgqRSCR0CUTUS3ZCF0BERERERERkCRiQiYiIiIiIiMCATERERERERASAAZmIiIiIiIgIAAMyGYFKpcKyZcsgEomQlJQ... | 1 |
math | grade-8 | apply-addition-and-subtraction-rules | false | true | The number line shows two unknown numbers, a and b. Is b–a positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAI3UlEQVR4nO3dX0xU2QEG8O8OzL3DDDCoC4guIzFhcf0TVkBkLC2Y3bSbuNhgNa1tYmlstBITw/bBvvSlIW5ME7cPupXoQ2Mboi8YtZs1mzQraCIDg4qiaNlWHHcJfwoywAwz3IHbB5hZqYxYHebMnfl+T9w79+FLLjd8nDnnXEnTNA1EOtbY2AhJkrB3717RUShKeM8TD+85EelJsugARG/q6dOnoiNQlPGeJx7ecyLSk1cu2KqqoqOjAw6HA1lZWXE9iuD3aXA6JuD... | [
"negative",
"positive"
] | null | 1 |
math | grade-3 | am-or-pm | false | true | Sidney is staying up late reading a book. The clock in her room shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABMdklEQVR4nO3dfXRU5bk//O/ee97yMpOE8J4oEFRIaAGxJVEr7VMNPhXreo6hPVI97cGe1vY5x4Ouiv2jha6C/UOhS1DXatUjtKcWbQXPb7ViHxPpOSctkmhFoGUiCgHKhBBDSLLzNi979n7+mGTIJPNyz/tM8v2s5SIzc8/M3WR259r3vu7rkgzDMEBERERERCkhZ3sCRERERERTCQNsIiIiIqIUYoBNRERERJRCDLCJiIiIiFKIATYRERERUQqZsj0BygF+A/AbMEb... | [
"10:30 P.M.",
"10:30 A.M."
] | null | 0 |
math | grade-8 | parts-of-three-dimensional-figures | false | true | In the triangular prism shown below, which lines are parallel? M | "iVBORw0KGgoAAAANSUhEUgAAANsAAACuCAYAAAC/bHgyAAAcD0lEQVR4nO3de1BTZ/oH8C8QIgLqgqgRN8il1ZWhFXdx1dVapSp4xUArxAtuq/XS1qKuK2od7da1oG2XWnVK1a1LbRtUNCjLIA6KdbXUQlUso1VXCKHa4CVMMaBE4P394eb8iCQI5OTkwvOZcYCTnHOeFL59z+V93+PCGGMghFidq60LIKSroLARIhAKGyECobARIhAKGyECobARIhCzYevTpw+effZZIWshxKlRy0aIQChshAiEwkaIQChshAiEwkaIQChshAjExVy... | [
"KM\n and \nLM",
"HI\n and \nIL",
"HK\n and \nJM",
"HJ\n and \nHK"
] | null | 2 |
math | kindergarten | represent-numbers-with-shapes-up-to-3 | true | false | Which group has 3 hexagons? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAHtUlEQVR4nO3dTU9TWRzH8d9tSy90pjOaDEwmIYQFAynEhx3b2fga9AXoWpyFDzGywBAfFoprfQH6Gty4xZ1joIFhQQjJOGBCYsfCLb29s7jzYKIGhXPuOb/D77MzmN7zb7/c296W3ijLsuxNB1hrA60U6GYQ8U4lAupl4Oca8GMViN4kWfbynetliXy56e+Ayu/t/B8/VYGJb/KqRXzTSoGV98AfHWC1DZTedfMfKFrxWb2cNwoAf6VAKf3gByI++7fR/QwouV2... | 0 |
math | grade-3 | find-the-next-shape-in-a-pattern | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADhCAYAAAC9ZMGZAAAT+ElEQVR4nO3dW4xlaVUH8LX3udSpS3f19DDdDAPODC2KCgIOVwMh3NQY4cFo4u0FIcQHBRMkUWCCMsObPsiDiUY0wRgkBC+ISNQMQYHh9sAIAygMMxlmmr44fauqrqpz2duHmu7qnu6u6qo+Z+99vvr9kg4P03t/a32rOfWvr/Y5lZVlWQYAAJCEvO4CAACA8RHwAQAgIQI+AAAkRMAHAICECPgAAJAQAR8AABIi4AMAQEIEfAAASIiADwAACRHwAQAgIQI+AAAkRMA... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAADhCAYAAAAJS2C/AAAZWElEQVR4nO3da4xk513n8d9z6tSpS9d094xnuj0eG9sZDGZJMFk72EGOInLZRauFFxFIy+VNcBTxAsJKIdolsTcQO9K+YF9sXiAtIiAFoWBF4RJCNlqQUdgkzu1FDJkkkDgemZnOdA/Tl+mu7qpze3hRc+mZ6Xufc55TT38/0shKPPU8///zH/fUr86pKmOttQIAAADgBWOM6xJqKXBdAAAAAACUjeADAAAAwHsEHwAAAADeI/gAAAAA8B7BBwAAAID3CD4AAAA... | 0 |
math | grade-2 | match-analog-clocks-and-times | false | true | What time does the clock show? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEJCAYAAADhBFPCAABceklEQVR4nO3de1yT5/k/8A+IAYFUJRwEWw2ooJX0MGwBDxWl1Z7AWm1V9u3WTXG/dltlWw8bbuvafaFd127Qrjupa7dvh3bVtoKt1YpCtYit1LbBA1hDtBoIEk8hCAHh9wdLSiSHOyEhCXzer5evQnI/z3MVycvruZ/rvu6Anp6eHhARERER0ZAQ6O0AiIiIiIjIfZjgExERERENIUzwiYiIiIiGECb4RERERERDCBN8IiIiIqIhJMjbAZD3XTZeQVtHFwztXb3/7ej... | [
"1:45",
"2:45"
] | null | 0 |
math | grade-2 | skip-counting-stories | false | true | Each room has 2 teachers. How many teachers are in 4 rooms? | "iVBORw0KGgoAAAANSUhEUgAAAVcAAACnCAYAAACl1B+1AAAhs0lEQVR4nO3dd3iN5xvA8e/JNjJkiBGJSIgRQpAENYMarVFbW2rVitFU9WeUWqlRNRLUaGtra9cmNilRWooIETLMGDEykPH7Ixw5TYwk5+TluD/XdS4n77xz3LnPc573ec+jCk+PS0eIN1yHBcMBWP35VIUjEeLVOiwYjoHSQQghhD7Kl+J6/wk02mFEmz2G3H+SH2cUIm8kZ0Ve5bm4Bl9TEXTO4KUJGHpLxZVECLunYsRxw7yeUog8kZwV+cEoLztPOmXA0osZ9dn... | [
"8",
"12",
"4",
"2"
] | null | 0 |
math | grade-7 | parts-of-a-circle | false | true | What is \line{QR}? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADJCAYAAABWm0bCAAAtd0lEQVR4nO3deXxV5b3v8c8ekp2dOZAJEsjEHCgyDxFFFBQU0aJQW6tttVgr59rT1qG21eM9x/Yeb889tT1WrLbVWq04HEWKhVqZPcggIAEZQxIgkInMc/bOvn9sWUkaRkmy1t75vl8vXqy19tpr/ZLsP7558lvPY/P5fD5ERERERCQoOM0uoDfYbLYevb5+RxIRERERq+gTAV8BXERERET6CrvZBYiIiIiISPex22w21q9f3+WF6dOnM2DAgC7HCwoKsNlsLFu2jBd... | [
"radius",
"diameter",
"chord"
] | null | 2 |
math | pre-k | what-comes-next | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD1CAYAAAAlI4EUAAAZ2UlEQVR4nO3dfYwcd33H8c/M7NM9+PZihzO++HxNnCtubDetoCIQDH8USEPSSm1BQaF/FJoCAaQikYqoJUUhtAmFqKQSDQUJIbUkuFJAapPwoPxDHEIr+gd5RlimsX25+CE5+x729nZnZ6Z/TM57tu9yO3vztL99v6TIyJmb+d0n31s+99vZXSsIgkAAAAAAjGBnvQAAAAAA8aHgAwAAAAah4AMAAAAGoeADAAAABqHgAwAAAAah4AMAAAAGoeADAAAABqHgAwAAAAa... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAAD1CAYAAACRDCAyAAAe10lEQVR4nO3da2wd533n8d/MnBsvOoeWHCqiRWllm1vFkuoWyaJubCUvtknWsXeB3U2RQOmLbZsmthugAZpFjDbewHVa22mDrQukzrZAEaCJHS/gFOjabhIEBWIpzm5ToLblSxBBqS40LVE2JV4OyXPmti/GEimJFM/wzOWcZ74fwIBNDZ95+Pdfw/mdZy5WGIahAAAAABjBsqy8p9CT7LwnAAAAAABpI/gAAAAAMB7BBwAAAIDxCD4AAAAAjEfwAQAAAGA8gg8... | 1 |
math | grade-8 | transversals-of-parallel-lines-name-angle-pairs | false | true | \line{SU} and \line{VX} are parallel lines. Which angles are supplementary angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADSCAYAAABw17dKAAAewUlEQVR4nO3de1DVdf7H8dcR4awtJ6AOmtKArm65kBtuF9GaPdDUplut0ExWdhGdtil14uxUXirKtqEdu0LWqjsNHmfWdbGQY9hCF1fcpuGU0KLmWbIbnHXDBOTQIe2EyO+PJn7rKsnlC99zOM/HzJmx70c+n1eO3/HNm8/387V0d3d3CwAAAIAhRpkdAAAAABhJKLABAAAAA1FgAwAAAAaiwMaI4/f7zY4AAAAiGAU2hs1nn30mi8Vy0icmJkYXXnihnnrqKZ04cWL... | [
"\\angle{VWY} and \\angle{STW}",
"\\angle{VWY} and \\angle{XWY}",
"\\angle{VWY} and \\angle{XWT}",
"\\angle{VWY} and \\angle{UTR}"
] | null | 1 |
math | grade-5 | parts-of-a-circle | false | true | What is \line{WX}? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADJCAYAAABWm0bCAAAuC0lEQVR4nO3deVxUZeP+8c/AAIKACi6gpoJb4r7mmiua5W6mpaWm7ZZZaU99/dXz7dtqz6LZYqbmWi6VtljmhqhJouUuLgi4ogiIiiDr/P4gjxDugmdmuN6vl6/OuefMOdfY/HHN8Z57LDabzYaIiIiIiDgFq9kB7gSLxXJHrqPPSiIiIiJithJR8FW8RURERKSkcDE7gIiIiIiIFB0Xi8XCunXrCj3Qtm1bAgMDC43HxcVhsViYNm0aM2bMwGKxkJ2dXexBH3zwQbp... | [
"radius",
"diameter",
"chord"
] | null | 2 |
math | grade-4 | transportation-schedules | false | true | Look at the following schedule: Abdul just missed the 9:15 A.M. ferry at Beach Town. How long does he have to wait until the next ferry? | "iVBORw0KGgoAAAANSUhEUgAAAXEAAAFECAYAAADRMA66AADD90lEQVR4nOydeVyN2f/A37ddKkW2pFKSpYxdUVTK1kIqUpgYhrEbY4uxzBgGmbHva2hRIRIiMvY92ZN9KXur0vr7o+ly3VvdLDPT9/e8X6/74jnn8/k859w+z+ee8znneR7R2IkahQgICAgIVEiUAAb5zv+32yEgICAgUA42bJoIgMK/3A4BAQEBgc9ACOICAgICFRghiAsICAhUYIQgLiAgIFCBEYK4gICAQAVGCOICAgICFRghiAsICAhUYJT+7QYI/Lt0aDeBlJT... | [
"30 minutes",
"1 hour",
"45 minutes",
"15 minutes"
] | null | 2 |
science | grade-2 | identify-living-and-nonliving-things | true | false | Select the living thing. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAACzC0lEQVR4nOz9169kWZbmif22OMrk1cI9PNw9wjNEal2yu2sItmA3mhySM00QHPKB4AOfKAYE+RfwlcBgQBDgX0D0A9noxhS7Z7pZNT1VlVWZVVmVInSEe7i+2rTZEVvwYZ9zzO6NyGJmRj0MgTLg4rrfa9fs2D5rr73E931L/Gji/Ztd6Cv+9vG3j/9WPmYWPljAyxK2NfzuVvi5/FvD/dvHf9sffQVvdsO/53b9c/m3hvu3j/9/eDR2Wvn1z/TnPfH/85/9HwB... | 1 |
science | grade-5 | identify-vertebrates-and-invertebrates | true | false | Select the vertebrate. Hint: Mammals, birds, fish, reptiles, and amphibians are vertebrates. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAAEAAElEQVR4nOz9WYxtWZrfh/3WWnveZx5ivBF3zLw3b2bW1NVTdXd1s0VSpkyQpi1RlkzABuQHwwb4YL8ZfvJAw4ZhPxkwREGQTEqQzQG0aLLlZlNkT9XdNXRVZlYOd74RN8YTZz573nut5YeTVe2HfCggX2SgFxBAYMfGOTsi/udb3/f//79vie+trH0YQ1vx5+vP138j10bDkxQuK+g78Ku97XX558D98/Xf9NVW8DDefp/oP7su/xy4f77+/2H9BKe1/bNrzhf... | 3 |
science | grade-6 | compare-thermal-energy-transfers | false | true | Javier lit the charcoal in his grill to cook two identical salmon. He put one fish on the left half of the grill and one fish on the right half of the grill. This table shows how the temperature of each salmon changed over 6minutes. During this time, thermal energy was transferred from ____ to ____. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAABfCAYAAACdpLOcAAAm6klEQVR4nO3deVzU1f4/8BfDLiCbgCkuI8oqIHklMCUFv7f0Z5ko4paluYSoUAFZpFdxS0XL/Jpd13vVHmpcM4vMrllXMTRJTBYVWUZBSGOVXbb5/eFlvo4MMAOzwPB6Ph78wWfO55z3+XzOG858Pmc+oxNyfoQYRETd0Psex7EpJVjTYRB1a8wjIvl85ndN0yHITaDpAIiIiIiISHk4wSciIiIi0iKc4BMRERERaRFO8ImIiIiItAgn+EREREREWoQTfCIiIiIiLcI... | [
"each salmon . . . the surroundings",
"the surroundings . . . each salmon"
] | null | 1 |
math | grade-1 | read-a-calendar-ii | false | true | What date is 2 days after November 22? | "iVBORw0KGgoAAAANSUhEUgAAAssAAAF2CAYAAACYtNXtAABdFElEQVR4nO3deVxU9f7H8RcD4i6yCO6KoqJFLuSKRJnmvmTmTX/eLDW1zOpampdy6ZaZ2m2xzRbLtExTM1AzXLqgmJKK4m4qGhLuCIkoiDO/P5BJgmODAsPg+/l4+FDnnJn5nA9nDu/5zveccbJYLJbwo9H8+NsWjqedRkRERERuXZ1K3nSr144+vh3tXYrcAqew+I2W+Au/839Nu+BapgwWLPauSURERMShOeFE5pUrfL1vLb6Va9K3QbC9S5KbZPrxty0MbvYAZcq... | [
"November 24",
"November 25"
] | null | 0 |
math | precalculus | determine-one-sided-continuity-using-graphs | false | true | Is f(x) continuous from the right at x=1? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB8IklEQVR4nO39eXgU550u/N/V+yaptSEJgcSOLYzAgMBgsLFxjGMnjsHJ2MkvcTJvkolzss85c528OXPy/ibx+M1MJsnYcTxZJuPYmczJxGOwY2OBscGGQMwig0ACgyxAC0JLS713dVV1V71/NC0js0lQD61G9+e6fGG1ur79VVV39d1PP1UlGYZhgIiIiIiITGHJdQNERERERNcTBmwiIiIiIhMxYBMRERERmYgBm4hG2LZtG6ZNm4b77rsPAPDRj34UGzduvOB9NU3... | [
"no",
"yes"
] | null | 0 |
math | grade-2 | find-the-next-shape-in-a-growing-pattern | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADhCAYAAAC9ZMGZAAAZJ0lEQVR4nO3dW4xd113H8d/a5zpnxh7HNHZupUnTPtAmCohegLaUplAk2lQChNoXBA/AA2qRSsULpCqlKX0BibYvIFqEVKGmD1CeIFQQEdqSy7jGrm9pxo4tXyb2jDOe8cyZOXP2ZfFw4ngcz+Vc9mXtdb4fyYoUzTlr/dfae+t31ll7H2OttQIAAADghaDoDgAAAABIDwEfAAAA8AgBHwAAAPAIAR8AAADwCAEfAAAA8AgBHwAAAPAIAR8AAADwCAEfAAAA8AgBHwA... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAADhCAYAAAAJS2C/AAAeg0lEQVR4nO3dfYxd913n8c/vnPswc2c8M3FjT9IYmtRppTaNDKIllKYFygKCkkqAUKuVKpBY7R+o/QOqFVq2VViaLv+AtBCxy4oCf1Qrkj+g/LO7odqN6BNJYze166c0tmPLscf2jD0Pnrkz956n3/5x7Xgcz+O95/F33y9pFCWZe37f7++cM/d+ztM11lorAAAAAE4wxhRdQil5RRcAAAAAAFkj+AAAAABwHsEHAAAAgPMIPgAAAACcR/ABAAAA4DyCDwAAAAD... | 1 |
math | grade-2 | greatest-and-least-word-problems-up-to-100 | false | true | The board of commerce gave a survey to determine how many employees work at each company. Which company has the most employees? | "iVBORw0KGgoAAAANSUhEUgAAAc0AAAC9CAYAAADRECZoAABYqElEQVR4nO3dd1gURx/A8e/RpR0gFkCKHbGBomLvQUXFEhNjYo0txigaYzAaWyyxxGg0iTUxxi7GXmOwtzcWoiaKgmLFgjSlw837B7py0g5QsMznee55uNnZndnlbn87s7NzKvclvgJJkiRJknJlADCy/cCirockSZIkvdLmbF+MXlFXQpIkSZJeFzJoSpIkSZKOZNCUJEmSJB3JoCkVmrhUfUaeqc3X52oSl6pf1NWRJEnKMxk0pRfidKQNm2455hgML8WqiUgy5nq... | [
"Township Real Estate",
"Country Bakery",
"A to Z Books",
"Smith Electronics"
] | null | 2 |
math | grade-3 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACxCAYAAAD+t8q+AAAYTElEQVR4nO3de5CV9Z3n8fc5faG5hLBECpTVqNHgoNlRtmR01Ix3TNAEAZWL3AwgqMxEdCK7a9zK6M6YlBAriAKNYqMIGkAzo7sSdGJCWC20yMwqjImMtyyoIentIDRN387+cWye56iEts/T/TuX96sqVc/ztenzsUo6n/6d3/k9qUwmk0GSJElSItKhA0iSJEmlxIItSZIkJciCLUmSJCXIgi1JkiQlyIItSZIkJciCLUmSJCXIgi1JkiQlyIItddYvV0DtBNj9Wug... | [
"yes",
"no"
] | null | 1 |
math | pre-k | what-comes-next | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD1CAYAAAAlI4EUAAAQRElEQVR4nO3dTY8cx30H4H93z8tyueTSlESKtCEfaOkUyBDgl4sVX4IcdbOhmz6AfYiN5BDAguPYX0AXATnmkDiIL3GAIHEQBFFsJAfHgWxEsRCbgCWLNEWaS1HLXXKmZ7pzWPHFlrlkze70DGueBxB02O2t2h9qGz/W1PQUbdu2AQAAZKFc9AQAAIDDo+ADAEBGFHwAAMiIgg8AABlR8AEAICMKPgAAZETBBwCAjCj4AACQEQUfAAAyouADAEBGFHwAAMiIgg8AABl... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAAD1CAYAAACRDCAyAAATDklEQVR4nO3dzW8c530H8N/MvlEURTKOrRc7SA6KfSocGEjii91cih59S+Cb/4Dk0BjtIUCCNk3+AV8M9JhDkqK5NAWK1kUR1I3RHNIUjlElRhMBtiMxNCVRkilS2p2dmR5ovdkWpaG4s8tnPx8gB4eafR59/WA8X87sPFld13UAAABJyLJs2lOYSfm0JwAAADBpig8AAJA8xQcAAEie4gMAACRP8QEAAJKn+AAAAMlTfAAAgOQpPgAAQPIUHwAAIHmKDwAAkDz... | 1 |
math | grade-5 | nets-of-three-dimensional-figures | true | true | Which net will make this figure? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAAQdElEQVR4nO2de1iU1dqH7+EgyEGMFCEx1AQFVChSPFCoKGamBqYkmkCQGaYMpnlAt3hpKbZFsG8bchAUK7VQMCtT8bAL0ozPwY0ETubsAk1QGOSgCMz7/YHyhclhYIAB574u/8B511rP8ONZaz3rWWu9IkEQBDSoDVodbYCG+mgEUTM0gqgZGkHUDI0gaoZGEDVDI4iaoRFEBXz66adMnDiRo0ePtr4yQUOLycrKElxcXARAAARLS8tW16kRpAUUFRUJgYGBdUIY6/U... | null | [
"iVBORw0KGgoAAAANSUhEUgAAASIAAADlCAYAAAD3JPoOAAAhmElEQVR4nO3deVyU9drH8Q8MiIGIx8RcEtOAxJXyCJaVloh2ilw6aWkd8UgumQqWK7mbqc9zBLHj44JCZbmUpmaFa1RqYJngggguaG41aiiCIgzz/DEOSaIss9wz91zvf3gJM/d9/WT8em+/6+cE6BE2Q6/Xc+EmHCuAPB0Uy29HqJCLE3hqwM8dHqgBTkgQ2ZQLhXr2XlW6CiGsJ7g2uChdhCgru8DwtWENeMTD8L+GEGqTp4Oj+XD+JmQVgLPSBYmyrhYbvko... | 0 |
math | kindergarten | represent-numbers-up-to-10 | true | false | Which group has 5 rectangles? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAE8ElEQVR4nO3dMU5cVxSA4TOAXTjYcmElygKSLMEVklmCV4wld96B4/QhEhVgJBPQSzGyQhFRRPh/Br6vmtEUc3Tv06+5xehulmVZji9n/riYObueuVoG4E7sbWae78788mzmp6czm+Mvy/LhdO2xgIfu9YuZvU8X2zc/P5357YdtjQDuwtn1zMfPM39ezvx+MbNzerX9QGyAu/Z8d9uWmZnz65md6xsfANy1r235e5nZWXcU4DERHCAjOEBGcICM4AAZwQEyggN... | 0 |
science | grade-3 | identify-plants-and-animals | true | false | Select the plant. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADeCAYAAABL7FARAAD2D0lEQVR4nOz9Z7hk2VnYi//W2ntXTqdOzqlz7unp6elJGuUsgZBEDgZfbMBGNoYL9jUOwMXGNgbM5RojsJFRQAgkFNBoRjPSaEJPz3RPT+d8cj6Vc9p7r/+HXVWnzjl1emYEH+7/eVjPU9119l61wrve9a43L/G5+bK6P2rQYQj+vvx9+f9iSdUU55M1ZgoKBUz4JT8w7EL+PeL+ffn/eukwBPdHDecPBWtlGwD594j79+X/H0oDT4WAouU809tV/HefvVCvKDb... | 0 |
math | kindergarten | one-less-with-pictures-up-to-10 | true | true | Count the pencils in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAAXzklEQVR4nO3d+W/c933n8efMcIbD+6ZokiJFUQcpSpTkxLJ12JKdrV1fSdpVujlcdAM0PrbY2A42DRZ2C2w3lp3uAq1d1zVlL+p2nUY20GRROYm7G4uSI+ugblu3SPEc3tfc93z3B5IS5dhpDvL7pTivxz/AN0C8gSc+8/l+vzbDMAxERERERGRO2K0eQERERERkMVFgi4iIiIjMIQW2iIiIiMgcUmCLiIiIiMwhBbaIiIiIyBxSYIuIiIiIzCEFtoiIiIjIHFJgi4i... | null | [
"iVBORw0KGgoAAAANSUhEUgAABOwAAAB+CAYAAACXpI7eAAA0TklEQVR4nO3deXSV933v+/cetTXPIISQQBKTADHEgBkMHjJ4gCSt7cRO0pOhjUnOPWlst6fntnZ70ya2O9ys2jmJHbDPbaY2dppmwkmcNkwOZpCwwTZCgCQEGrbGLWmP0h6f+8eWAGdo1NY8+0H6vP7Zaxmvpe9ae33W+v0++/f8HhtgICIiIiIibwvDMOiPQXsEgklIaLUtIiIi/w6nDfIdsDgH5rrT/82GCjsRERERkbdNf9SgKZDpKUREROR6tLEA5rjBmel... | 1 |
math | grade-5 | median-find-the-missing-number | false | true | Darell has the following data: If the median is 473, which number could t be? | "iVBORw0KGgoAAAANSUhEUgAAAUAAAAAkCAYAAAD4guNSAAAJIklEQVR4nO3de1hUdR7H8feZC5eRmyAgKHLxLrqUlpcUtLKLmln6pGXXdd1Vy3a72F7K7TF7yiyfHtvSfNR1t552Na+ZbGpGmzfUXBUVSawgJQ1UAgQcZmDm7B8E68gMDM4ZmHa+r//8/c75nQ/fZ/zOmTmHg6KqqgpQp1qpsV3GrtoAFSGE+P+ioFP0BOlNGJSA+hFVVVWLrRqL3dzO4YQQom0E6kwE6k3obGqtND8hhF+x2C9Tp9ais9gut3cWIYRoc1bbZXQ2ta6... | [
"333",
"488"
] | null | 1 |
math | algebra-1 | linear-functions-over-unit-intervals | false | true | How does h(t) change over the interval from t=
–
5 to t=
–
4? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAABwoklEQVR4nO39e3Rc9Xkv/r/33KTRSKORNbIky0jGGBxsJIPxTbaETUyAQkrxhZjmtDn00PbQkzQ5/a3VrqyunK7TLr58s1ab9IRD0iRtCuSsfpvgC5xikB0TDDYStrCwZUsGY4QtS5Z1GUlzv+y9Z+/fH+MREr5oxt4f7Rnp/foHNJ791qO9Z/Y88+ijPZKu6zqIiIiIiMgQFrMLICIiIiKaTdhgExEREREZiA02EREREZGB2GAT0RSPPvoodu7cedV/O3LkCNatWwd... | [
"h(t) decreases by 2",
"h(t) increases by 100%",
"h(t) decreases by a factor of 2",
"h(t) increases by 2"
] | null | 0 |
math | kindergarten | fewer-and-more-compare-by-counting | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAM9klEQVR4nO3dXWxUdQIF8DOFElJaW6GUEjot5UuiVEwF+mFBdCEUUDAiidEHXkASNZRsNhC2MSYCEoiRYDaK+GbiC9XQLS4tEQkglBYRCF8BgZbaAm0pX/2KUJi7D90SsojMzL13zr3+z+8FiZn//5zgmdFpnAlYlmU13wHOdwMd94C7FkTEJf0DQFI/YGwCMGwAEGi+bVmH2tmxRMyT9wTQ/1x372+GDwCeGtS7ThFxR8c94GwXcOUO8Gs3ENd+t/dvaHwi7kv... | 1 |
science | grade-2 | classify-fruits-and-vegetables-as-plant-parts | false | true | People use carrot plants for food. We usually eat the part of this plant that takes in water and nutrients. It holds the plant in place in the soil. Hint: A plant's roots take in water and nutrients. A plant's flowers make seeds and fruit. Which part of the carrot plant do we usually eat? | "iVBORw0KGgoAAAANSUhEUgAAARoAAADKCAYAAAB6+o8hAAEAAElEQVR4nOz9d5Cl2XneCf6O+dz1N31m+a7qqmqHNuhuAA0QAEFQggiSkrgU5SgqJG3syM2EYiL2j43djYk1f6xCG9rYGI20mpVZhjSKESRRhCgCJEiA8KYbaF/tytv0ef1nj9k/vpvZ1RClmZ0doaldnIgbVZl5782833fOe973eZ/nOeKv/bW/5vnx+PH48fj/i/G3//bffl9+rwb4W//13/mP+ku8ByHqx/1DAAoopiDwjKfbeEr6C8tInVJwj0T2yLITuAqSFli... | [
"the root",
"the flowers"
] | null | 0 |
math | grade-4 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADgCAYAAAA5ZRHsAAAfcElEQVR4nO3de5gU9Z3v8U9V9WVmuAzMDDMDCIpEBYKXgKIsoqKGBMXLUdfE227yJLvZZxM3G2OSs+b4JPvsE7Nms9klWbPHnD1nzxF114SYuEC8xAsgiKB4AwVBRCEMM8wMw20ufamq88cMdHVPj3ZP9fT1/fqLfgZM5Znqqk//+lPfn+G6risAAAAAOWEW+gAAAACAckLABgAAAHKIgA0AAADkEAEbAAAAyCECNgAAAJBDBGwAAAAghwjYAAAAQA4RsFFQh+PSJZt... | [
"yes",
"no"
] | null | 1 |
science | grade-3 | compare-properties-of-materials | true | false | Which would smell more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AAA0aUlEQVR4nO2de0xbaXr/v+f4bmyDbQwYCHcw1wAm3HIjmdwmgSQw29WOOrfd7lZVu9tWbaWtVHW7rdpKu6p+rTrb3VVVdWYn092ZaleZCSQhlwkJATIhkAQS7uEW7sZgLrbx3e/vD3rO2HGSIQGDk5yPhJIYc857nC/v+z7P+1yotiVCdGGAnAcOjk3F7AH6rcC0E1Dygd0Rq6/TnCA5tgo5D9CFrf7d4vnqdZoTJMdWwujPRb56jd6aoXBwPBlOlBwhBydKjpC... | 1 |
math | grade-1 | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 5 − 4 = 1? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARIAAABKCAYAAAB3ndsNAAANZ0lEQVR4nO3dfWwc9Z3H8fc+ev38lITYcR6AGIfakATUUAqhl7QQkaa0QC+0IFT6cE2R7qSrelJQq7vT/VHa0yHdQ0GV7tS7EMhVRUDaBEzDAc0DJYlDEju2ExzbSWzHjp/tffDu7O7Mzv2x9vrZO/ba3vHm+/rHzOz8fp5P2O931zOzOxZd1/XOEDT5wauBqiOEEDOyWyDbBqUZcIsTLJ1BXa/yJHu3hBBL1X05YG/0RxeKnFCWGe0yQggxE68GDUNwIwSX/WD... | 2 |
math | algebra-2 | factor-quadratics-using-algebra-tiles | true | false | Which area model represents the factorization $2 x^{2}+3 x+1=(2 x+1)(x+1) ?$ | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAATgAAADjCAYAAAAR8QgyAAALwUlEQVR4nO3df2zU9R3H8dfd9SjQ0jbSguU3LT+EAQKVGcFNMVYyxZgIbppNN5NtZsFkzkwTM/7Z/tBIMn8kC3MuumyZsJngjAwmFH8wdQYxLWEBhkClg9JCjx8tXEvbu+93f9za8Es227t+7vv+Ph//YK+x9+YN9+zn7ki/Ed/3/dYe6WCndDYtpXwBQCAVRKRRMWn6SGnsMCnS2u37n3S4HgsAsuvGEqngQGfmg8ph0syiTP0AIIjOpqX9SamlR/qsU4p2pDK... | 0 |
math | grade-1 | more-less-and-equally-likely | false | true | If you select a marble without looking, which color are you less likely to pick? | "iVBORw0KGgoAAAANSUhEUgAAASYAAADECAYAAAAyP4znAABiwklEQVR4nO29eZxU1Z33/z63qnrfm5KGVhtZZBEXBEYU06iJQmIyCE5UXJKYyUTjL/M4ypNxG5PMDIs+yagZ5zG7mWjcBg2SyTOg0bgQIgpEUBSQBoSm6WbpvbvWe8/5/XHuvXWr6Ybuple4n5d4+lbdukt116e+6+crlFIKHz58+BhCMAb7Anz48OGjI3xi8uHDx5CDT0w+fPgYcggO9gX48DHc8eqrr/Lmm2+yb98+9u/fT01NDTU1NWRmZlJeXk55eTmnn346Y8e... | [
"neither; black and blue are equally likely",
"black",
"blue"
] | null | 2 |
math | grade-7 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABSCAYAAABuZ6OSAAAOXElEQVR4nO3de3STdZ7H8U/Se0mTUsog7EphuahlXQWVlYFzuA2goHhB3QHBC8wZULzAQEUYjrsOggJCGYZRxzmyrCAMCCJV7rJ2dlhFXDuMOMURUS4WBoZCL0mbtEme/SNO0iiU0iZ90vT9+qt5Th/4/pHn9JNvfr/f12IYhiEAAAAAEWE1uwAAAAAgnhCwAQAAgAgiYAMAAAARRMAGAAAAIoiAbYYTJ6RDh8yuAgAAAFFAwDbD4sXSDTdIo0YRtAEAAOIMAdsMI0Z... | [
"yes",
"no"
] | null | 0 |
math | grade-2 | how-much-more-to-make-a-dollar | true | true | You have these coins:Which coins do you need to make a dollar? | "iVBORw0KGgoAAAANSUhEUgAAAUEAAABNCAYAAAA4u9b+AABZR0lEQVR4nO29d2BcZ5n2/TtzpleNNNKoN8uSLVly770kThynkU5CQoAAIewCu+wusHywywLLvvvuCyywAQKkQUgvTnMcx70Xuci2ZKv3MtKMRtPnzDnn+2M8BzuEkIRkgVjXP3LRnJn7mXOu537uct2Cqqoqk5jEJCZxiUL35/4Ak5jEJCbx58QkCU5iEpO4pDFJgpOYxCQuaUyS4CQmMYlLGvo/55tncjLj4+PIsszExASqqiKKIuFwGKfTSTwex2azYbVaMRqNWK1... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5kAAABxCAYAAABfqWdUAADMxklEQVR4nOz9d3xb53n3j78BHGyAIAb3HiJFUqT2HpZlyfKSYzu248SxnTR1VrM60iZNvkmbJm3z5PckaZs8bUYbO04c7yHLtvY2talBUpS49wAIYhH7HJzfHyAQyXZa27FjNz7v10svSiIBnPsmcO77uq/r+nxUgIyCgoLC+xRZlplMQG8EQhKIyh1RQUFBQUFBQeFNIajAqoF5JijQgQolyFRQUHgfMxmXORl8t69CQUFBQUFBQeGPg5U5ILzbF6GgoKDwbtI... | 1 |
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 an integer but not a whole number? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEuCAYAAAC08GWcAACGfElEQVR4nO3dd3hUZfbA8e/0mfSe0EkIndCbIgIiooiKAhawYlkLdl2Xde24/uyyll27AiIKKKCoCCq99957S2+TmUy9vz9uZgDpkkzL+TxPnplMJjPvTDL3nnvuec+rURRFQYhaJNfm5VCFh6JKLxUuBZvbi92tYHMp2NyKer3qe/913+0u70luUyh3qR+jaL0Gs16DWafBrAeL//rRyz/fZqm6Ld6kJcGkIdGkJdGsJcGkJdGkXsYZNUF+14QQQghxtjQSYItIUVS... | [
"168",
"–82",
"1 11/12",
"85"
] | null | 1 |
math | algebra-1 | surface-area-and-volume-changes-in-scale | false | true | Look at this cone: If the radius and slant height are tripled, then which of the following statements about its surface area will be true? | "iVBORw0KGgoAAAANSUhEUgAAALcAAABtCAYAAADjy/DWAABBGUlEQVR4nO2deYAcVbX/P/dWdfds2TMhewKEJQmQgBDCEgiyhfUhIk9li/JUQFneE9CfIg8UJAIKAi4gSAIIuEEARdSnBEES9uwsISF7QtbJMsnMdNe9vz/uUrd6ZpKAJDPBHJh0d3Xt/a1T3/M959wSWmvNLttlH0OTbb0Du2yXbS/bBe5tsL88dxvf+PbF9BvQmVFHD2jr3dll22hiFy3Zsv1iwmVcdfl41q3bAEAUC/Yb1pupry5u4z3bZVuzXeDegn3z2k/zg+8... | [
"The ratio of the new surface area to the old surface area will be 16:1.",
"The ratio of the new surface area to the old surface area will be 9:1.",
"The ratio of the new surface area to the old surface area will be 3:1.",
"The ratio of the new surface area to the old surface area will be 4:1."
] | null | 1 |
math | grade-4 | identify-equivalent-fractions-using-number-lines | false | true | Is 1/4 equivalent to 1/12 ? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABwCAYAAAAkAwevAAAbSklEQVR4nO3de1BU5/0/8PdyFbnDrsKiAhpRJFYbDIKJ0lRiTB28pxIvkCg1yagZW7WJ4/fXGpNayWWw3qqJX0aLptNc2p8mpLYmVmgpiKg/jX7BmlU0cb2suiDCortwfn8gfEHRsMvKc57j+zXjtJwlM+8PHA5vHp5z0CmKokAj8vPzYTab8eqrr8LPz090HJJYRUUFdu/ejTFjxiAlJUV0HJLcunXroNPpsGjRItFRSHLFxcX417/+hUmTJmHw4MGi45DE6uvrsX7... | [
"no",
"yes"
] | null | 0 |
engineer | grade-7 | identify-control-and-experimental-groups | false | true | In this experiment, which were part of an experimental group? The passage below describes an experiment. Jennifer wanted to find ways to save water. She learned that people can reuse greywater, which is water that has been used in sinks, tubs, and washing machines. She wondered if her plants would be less healthy if sh... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAEhCAYAAAAUBJnbAAEAAElEQVR4nOz9WbAkWXrfif3O4ltsd8uszKysrasXdAMgFgLcZ2g0aMwkakTTaEakjJQ4Rpn0xhdptJie9CC90vgkM3GML5JpmZFoI5NMmiExJFYC1SAAAt0AGo1uVHVVZVbletfYfDuLHo4fD4/IezNr7axq1GcWduNGuHu4+zn+nW/5f/9P/MN/+A89X8gX8oV8IZ8j+cf/+B8/l9/VAP+7//3/tv/Ae3/p+w/yffzfe9+/ANq2xXuPcw7n3NZ+QgiUUgghEEIgpex... | [
"the plants watered with greywater",
"the plants watered with tap water"
] | null | 0 |
science | grade-6 | compare-magnitudes-of-magnetic-forces | false | true | Think about the magnetic force between the magnets in each pair. Which of the following statements is true? The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | "iVBORw0KGgoAAAANSUhEUgAAArwAAABwCAYAAAD8D6OlAAAhF0lEQVR4nO3deXRU9fnH8fcsmQQIjUHCEkhCJawqRZFABBVRUECECIgiKLZaFVzA06IepK2t/NwriopaKopRpApBBbTuRUDDIrtgCUISIEAQiEAyJLP8/rgmDRAgy8zcmZvP65x7JMnMvd9JnOf5zr3P/T42v9/vR0RERETEouxmD0BEREREJJg04ZWTDB06FJvNdtyWkJDAFVdcwZIlS2q0r40bN2Kz2Vi6dGmNx+H1enn44Yex2+1Mmzatxs8XEYkU4RB3vV4vf//... | [
"The magnitude of the magnetic force is smaller in Pair 1.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is smaller in Pair 2."
] | null | 2 |
math | grade-6 | which-model-represents-the-ratio | true | false | Which model represents the ratio of 4 hexagons to 6 pentagons? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlkAAABRCAYAAADhNLMDAAAO30lEQVR4nO3d23dU1R0H8O85Z85MzkxmJjOTkCAhJoKAlYuCghGKFKF9sLYurQ+66irLS/8a33yrl+Ky1Qery0t9aAFrUYri0grYWqTekGowyYRkSIbMZHL6EEajJMycM3vvc7LP9/OCQGbv388fYX7svWcfw3Vdd6gC/HcKKNWAGRdERERE5FHMANIWcG0S6I4DxtC06x6bCDosIiIiIn1sywCx01NzP1keB9am5jowIiIiIvKmVANOTQJfV4CPpwBzYmbuN9h... | 1 |
science | grade-8 | compare-magnitudes-of-magnetic-forces | false | true | Think about the magnetic force between the magnets in each pair. Which of the following statements is true? The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different shapes. | "iVBORw0KGgoAAAANSUhEUgAAAgAAAACXCAYAAABjhOMoAAAmGElEQVR4nO3deViU5f4/8PcMMzAssm+iogYqiooLipqnTFPJMslE63TqdFqsTna0b5stx99pOd+sziktLfNrmR5b3LPMNo9bmYiCQmqSIMoioOzbDMww8/uDIwcCZn2WGeb9uq6uZHjmfj5w8dzPZ+77+dy3wmQymUBERERuRSl3AERERCQ9JgBuICUlBQqFosN/YWFhmDZtGg4dOmRTW6dOnYJCocCPP/5ocxwtLS144YUXoFQqsWLFCpvfT0S2c4brv6WlBW+++Sb... | [
"The magnitude of the magnetic force is greater in Pair 1.",
"The magnitude of the magnetic force is greater in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs."
] | null | 1 |
math | grade-4 | parallel-sides-in-quadrilaterals | false | true | How many pairs of opposite sides are parallel? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAfP0lEQVR4nO3df3Rcd3nn8ed+752xbMuSLcuyJVm2JC8lhRJalm4C6dLAEloWimkgZQMhSwJkwybNKYeUJDg/7DjGCYTC0gTKr0Bp2pSSEEpgywFvSLOkJMuhFLf0BFpLsiVbtizLliz/kOb+2D9G+c6ME8v6ce88M/e+X389zzkjzec48Tkfz3nOHSeKokgAAAAAxMJoBwAAAADShIINAAAAxIiCDQAAAMSIgg0AAADEiIINAAAAxIiCDQAAAMSIgg0AAADEyNMOkCX... | [
"2 pairs",
"1 pair",
"no pairs"
] | null | 1 |
science | grade-3 | identify-minerals-using-properties | true | false | Select the one substance that is not a mineral. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEGCAYAAAD2aACLAAC3aUlEQVR4nOz915NsWXbmif22OsLdQ16RNxVKAwXZaMVptvVMk8MZDueJ88B3PvEv4H9FI834RANnxsa60T1sYBoaKF0pb+aVoVwesRUf1j4ecW9moTBVGahEdqyyqMi4EeHhfnyvs9T3fUv9x2XOvzGHA8Od3dmd/QK2jvCjLTwd4cTCvzqWf9d3jnVnd/bL2YGB35jLf2/i9b/rO8e6szv75W3yI5+v/03/ap7Knd3ZV9/unOvO7uyW7M657uzObsnunOvO7uy... | 1 |
math | kindergarten | count-money-pennies-through-dimes | false | true | How much money is there? | "iVBORw0KGgoAAAANSUhEUgAAAMcAAACICAYAAABTC/9/AACKq0lEQVR4nOz9d5jcZ3X3j78+ZXrd3dnetV1a9V7dZQs3ioEAsf0QahpJgCeQB54feZKQcCUE/CUQEwIETDFgsMEVW66S1cuqrrZI2/vsTq+f+vtjNB+kYBvJBZJY57r22nLNzsx9z33u8z7nvM85gmmaJlfkilyRXxPxd/0GrsgV+a8qV5TjilyRl5ErynFFrsjLyBXluCJX5GVE/m29kGnoZDMZ0skEqWSCeCxGJrZAOpdHBHwlpfiCZXg9HpweD4FAEJvdjiAIIAi... | [
"18¢",
"16¢",
"17¢"
] | null | 0 |
science | grade-3 | animal-adaptations-skins-and-body-coverings | true | true | Leopard tortoises are adapted to protect themselves from a predator with sharp teeth. They have hard outer shells covering their bodies. A leopard tortoise can pull its head and legs into its shell when attacked. Which animal's body is better adapted for protection against a predator with sharp teeth? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOy9e/xt1bz//3yPMeZc6/P57Eu6URS6uqSyRSmVIipJKHRxqZCS64nK73Akl76iKIkKRSIRqaNTEVFJVJK7REgJ1b58PmvNOcZ4v39/jPVZZ+/dvnzKTnTW65zPQ3td5hxzjjHmeo/3eL1fLzEzSymhqowwwggjjDDCCCOMMMII/55wzhFCQGKMNgruRxhhhBFGGGGEEUYY4d8fzjncKLgfYYQRRhhhhBFGGGGEhwZUFfdgN2KEEUYYYYQRRhhhhBFGWHU... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9ebwsVXX+/V1r76ruc+6ECCoYiApKVBQlGhzigMYIqETjiKDGORqn+FMBP4kJUaNvcIgSZ03EKSrGIRCNEGclOAASxzhjxDkqw72nu2rvtd4/dnWf7j7jhYuo6UeL7tNVtWvXHurWs9dazxJ395QSZsYcc8wxxxxzzDHHHHPM8esJVSXGiIhc01WZY47fSOicOM8xxxxzzDHHHHPMMcevP8yMlNI1XY055viNhc6J8xxzzDHHHHPMMcccc/xmYP5... | 0 |
math | kindergarten | fewer-and-more-compare-in-a-mixed-group | false | true | Are there more circles or squares? | "iVBORw0KGgoAAAANSUhEUgAAAeYAAAA2CAYAAAAS2jpUAAAIiUlEQVR4nO3dT1MTeR4G8EcqDXRMwh81EIJG2ZHZnYKVYtZCLsDW1M5lDrKnPQqvYPUduK9gmFcge9zT4tmDyEUsZih2TO3u4CyCEANR+ZMEmqRTsgdsZpAkdpL+9608nyMFzdP9dNW3k/w6fe7o6OgIRERE5AkNbgcgIiKiX3AwExEReYjP7n/wJJUEAOzm8wCA1sZGAMBoOGL3v6YqsC9Z2Jcs7IvMsHQwr+5n8HBjDbOpJGY21kz9zXh3DGPhCG53x3D1fNDKOPQ... | [
" squares",
" circles"
] | null | 0 |
math | grade-2 | how-much-more-to-make-a-dollar | true | true | You have this coin:Which coins do you need to make a dollar? | "iVBORw0KGgoAAAANSUhEUgAAAUEAAAA8CAYAAAD4xQiaAAAZ+ElEQVR4nO3daXSU153n8e9T+yapJJWW0r6AhARiscFY7AZsh9hOwImNjTtx3J2lPZM+cTJ9Ek9nJk6Y+Bz3ZDI5PW/GyenEIfEkbRZ3B2OMcQhhxxiE0IrQVlVoqVKpVPu+PPOioAY6GDsJkAHu541Ynioe/i9+5z7P/d97JVmWZQRBEO5Sir/0DQiCIPwliRAUBOGuJkJQEIS7mghBQRDuaqqb/Q/EYjFSqSThcJhoNIJSqSQajaJSqlBrNKRTSQxGE3l5eSgUSrR... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5kAAABxCAYAAABfqWdUAAC3GklEQVR4nOz9d5ycZ3X3j7/vMvf0tr1XrXrv1bJVLDdhG3Al1IAJLRCSbxr5hZYQ8iRPSCAPhB46uGMbW7Is2ypWs7pWq+29z8zu9HqX3x+zO7YxRTau+H6/XnqtpN2Zua8zszPX5zrnfI4AGJiYmJi8RTEMg/EsdCchpoFqviOamJiYmJiYmLwkZAHcErQ4oFwBAVNkmpiYvIUZzxiciL7eV2FiYmJiYmJi8sfBOg/Ir/dFmJiYmLyedCXzXysVmOfMn8KZmJi... | 2 |
math | grade-8 | parts-of-three-dimensional-figures | false | true | In the square pyramid shown below, which lines are intersecting? H | "iVBORw0KGgoAAAANSUhEUgAAAO4AAAC0CAYAAACT+xCzAAAhsUlEQVR4nO2dfVBU1/nHv7uyS8huLVBYN8lCDMpYY7JoG1LwJaDIYN1JiLMYEwm+pNMSTBptJqmYpKNpm5rWTlJjAzGd0VUMproE0RJBCEhAoNoZgYmaEbBlxbIg4guX4O4C5/eHv3vLyy4vu3f37t09nxlHXe4950H53ufc8/J9JIQQAgqFIiqkQgdAoVCmDhUuhSJCqHApFBFChUuhiBAqXApFhFDhUigihArXBwgPD0d0dPSIz+Lj4yGTyQSKiOJuqHApFBFChUu... | [
"DG\n and \nFH",
"EF\n and \nGH",
"DE\n and \nEH",
"DH\n and \nFG"
] | null | 2 |
math | kindergarten | fewer-and-more-compare-in-a-mixed-group | false | true | Are there fewer circles or squares? | "iVBORw0KGgoAAAANSUhEUgAAAQ4AAAA2CAYAAAA273fRAAAHo0lEQVR4nO2dT2wTZxrGH0r8Zz2xcUjsrXBMbHmVKo60UlEwICE1ewCk9thSjqViu4dcF66F5Qqr3VMO2/3DHqm5tlLLYX1ACpuiIq3WQY1wx8RORO0Eu7bHOx4TZQ9oIpk4wZOZ8fh78/6Oo+Sb59E8evTN+Jv5Dm1tbW2BYRjGAG85LYBhGPHg4mAYxjBDdp9gqfwQAKBoNQCA5A4AAJKh03afmmG2oZpDp3xZWhwlpYBHq/eRLS3gu9Vve/qfk5HzmA6fwUzkHMJ... | [
" circles",
" squares"
] | null | 1 |
math | grade-1 | identify-faces-of-three-dimensional-shapes | false | true | Does this shape have a rectangle as a face? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACkCAYAAACtrFmWAAAekklEQVR4nO3da3Mbh73f8d/uArsLEADvF5GUZNmO7NiJr1LspNNketI550H7gvqs0+mTtq+nM22n0yeZ1nF8ObFP7ESRJSuKREq8iyRI7H37YHFbkpIgCQQJ8PuZ4VBkJBpUiOFPf/4vRpqmqQAAAAD0hXnWDwAAAAAYJQRsAAAAoI8I2AAAAEAfEbABAACAPiJgAwAAAH1EwAYAAAD6iIANAAAA9BEBGwAAAOijwlk/AGDU7GzH2t+Ltb/ffN18qe/H2tmO5DVSzcw... | [
"yes",
"no"
] | null | 0 |
math | grade-2 | identify-the-fraction | false | true | What fraction of the shape is purple? | "iVBORw0KGgoAAAANSUhEUgAAARQAAABkCAYAAABHJc8MAAAhBElEQVR4nO2dd3gc1bn/PzNbtGq76laXrGbLluQiF9zBNAOGhJ4LIbkJT8j9Jbkh9V5ybyiphPSADSE/kkAoaQRCcag2YGNjW7ZlSZYt2SpWt3pZle1z/5jd9cqSrLZryeJ8HvxI2pk5c5Zn593zfc9bJEVRFAQCgcAPaGd6AhOhp9NCe8sgfT1WBvps9PXY6O+zYe610t+r/q64IDhUq/4L0WEI1RISqiM4VIsxwkB6jonEtPCZfisCwZxGmm0rFIfDRfNpMw01fdR... | [
"4/11",
"4/5",
"4/10",
"4/12"
] | null | 2 |
math | kindergarten | triangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACJCAYAAADUvSEiAAAGoElEQVR4nO2dTU8bVxSGj/lSmyat1EWrVuqyqdQ/kE1/SH9jBAKJLGABShYEiMGJAqqVBiSiItll4bE9YxgzM54uhqQE7Nhj34/z9UiRYozxDTwQc+c9963keZ43rwFOLgHCDCDNQVFmZqEC8Gge4NcHAD8uAVSa/Tx/1fW9LIUzT74FWHh/Wdz4aQngt28KCxVlVsIM4F0PoHEN8PclwFw3Le5QyRSTPJovnAIAiDKAuezWHYpiko9OJTnAnN+lKFJQ0RQnqGi... | 0 |
math | grade-2 | compare-clocks | false | true | The clocks show when some friends did homework Sunday after lunch: Who did homework last? | "iVBORw0KGgoAAAANSUhEUgAAArIAAACZCAYAAADTjdlcAAAeAElEQVR4nO3de3RU9b338c+eyT0hF4GEawICbUQUL0iLFlRU6rJKpVpcB41PtUsPtdpSCtbHoqKny3osqOU8R8XKWcijPkVK8dYiehRQKS2econIRaEJKBAghASSyX3280fKJAMzycyePZc9eb/WYrn3nn35Js4n890zv9nbME3TFBJS++PvyVy9w7b97fF41NDeZsu+MvOzNHrdz23ZF+Ak5BJIPOSy93LFuwAEceiEraG0W2OtR7Urt8S7DCC2yCWQeMhlr0Yjm6D... | [
"Lee",
"Barry",
"Sandra"
] | null | 2 |
math | grade-2 | place-value-up-to-thousands | false | true | What is the value of the underlined digit? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAAiCAYAAABlRa5TAAAHaklEQVR4nO3dXUgUXQMH8P9OmqtmbmbhSiRGKRqhSxZhbuFaSGJhYWgYhYYSEpgIhhcVCkGplBBBsVYmfbFhiF1oZhHmQmBWfiZ+lJSVUGtiZlqb81zs43mcdw1833fMevj/rs45c86cOXd/hjNnNLIsyyAiIiIiIlVIc/0ARERERET/JgzYREREREQqYsAmIiIiIlIRAzYRERERkYoYsImIiIiIVMSATURERESkIgZsIiIiIiIVMWATEREREanIKWC3tLQgLS0Ny5c... | [
"90",
"9",
"900"
] | null | 1 |
math | grade-7 | rational-numbers-find-the-sign | false | true | The number line shows an unknown number, c. Is c positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAlwAAAApCAYAAADgbPfrAAAGc0lEQVR4nO3dXWxUaQHG8ecUZ6Z2OmtraV0hQLeKLg1ZQMrQkoI13KxWVgYB5QbLuiELEllvJO6NNbIoJiSsQrIkuLokVFyS0kj2QrMmTpvozJTSNk5ozJoyfGz4KhugLZ2PtuPFdAa6bDuD3TOHU/6/m+l5Z9I8zbl55n3fvsdIJpNJATbW0tIiwzC0bds2q6MgT7jnAOzmM1YHAGbqypUrVkdAnnHPAdhNzoUrkUioq6tLwWBQFRUVfLMEAPxfmkO/l//DHvXc+kA... | [
"negative",
"positive"
] | null | 1 |
math | grade-2 | interpret-bar-graphs-ii | false | true | Rosa looked in the family toy chest and saw some toy ducks, stuffed crocodiles, and teddy bears. She made a bar graph of the toys she saw: Did she see more teddy bears or stuffed crocodiles? | "iVBORw0KGgoAAAANSUhEUgAAAhwAAAFfCAYAAAAF2hUjAACI0UlEQVR4nOzdeZxU1Z3//1fVrVv71vtCd7MjiwKKiEtUcFc0uCUmMRPjGI0xZp8sE50sM5kxJjHj8k2cbMbkp4mJZlyjokYBF0TZEWRtet+7uvblbvX7o7CREYEGuquBz/Px4EHXrXtvfc6lqHr3ueeea8vn83mEEEIIIYaRvdgFCCGEEOLoJ4FDCCGEEMNOAocQQgghhp0EDiGEEEIMOwkcQgghhBh2EjiEEEIIMewkcAghhBBi2EngEEIIIcSwk8AhhBBCiGEngUM... | [
" stuffed crocodiles",
" teddy bears"
] | null | 1 |
math | grade-7 | apply-addition-and-subtraction-rules | false | true | The number line shows an unknown number, t. Is 1–t positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGE0lEQVR4nO3dT2iTdxzH8c+TmjRt6rKiKRa1uh2GdA5xtrEVqZ68iBtRL+4gBUFQepmHeZk3EbzoRTcFGUOweNjiQSbstKXCaFKrKwQjjGnXTtz6h9HRJ2maNtmhNtqZtlqfPE/Svl+X9HmawweehH764/v8HiOXy+UEAGWks7NThmHoyJEjTkeBTbjmAMrJKqcDAMCbGhwcdDoCbMY1B1BOXrtgZzIZ9fb2KhqNqq6ujlUEoICxLlP/dpnKDE9pOpmVd5NH/jaf3mn... | [
"negative",
"positive"
] | null | 1 |
math | grade-6 | classify-rational-numbers-using-a-diagram | false | true | Use the diagram to help you answer the question below. Which of the following is both a rational number and an integer? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEuCAYAAAC08GWcAACFu0lEQVR4nO3dd3hUZfbA8e/0mfQeOgRC7x1FBERFARUELGBbVl0Ldv2p69p2LWvXtezaC4gooIAFESwU6b33UEJJLzOZPnN/f9zMEKRLmJbzeZ48mUySmTMpd86ce97zahRFURCiDimw+zlQ5aPU6afKo2D3+nF4FeweBbtXUS9Xfxy8HLje4z/GdQpWj/pvFK/XYNZrMOs0mPVgCV4+/P6P11mqr0s2aUkxaUg1aUk1a0kxaUk1qe+TjJow/9SEEEIIcao0kmCLWFH... | [
"1 7/10",
"–90",
"1/4",
"7 1/5"
] | null | 1 |
math | grade-7 | identify-complementary-supplementary-vertical-and-adjacent-angles | false | true | Which angles are adjacent to each other? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD9CAYAAACGLQCpAAAl+klEQVR4nO3df3TUdXb/8dcYHWoWnYBZ8RgxYdSyxgJJsxKJQzLZ7DHsIg1M46GeNgm0y7HVROJf/DxHsYBwTveYPclp7bJd8sMe5WwYwmJaUhsYwmwgPRsZVjuyXTcEYzycNgsz9uy4GRvm+4eb+RIM5NdkPvPj+TiHcyDz+czcOfzz4nI/72sKhUIhIen09/crKyvL6DIAAAASzm1GF4Do6+/v18aNG40uAwAAICGZ6GAnF5/PpyeffFJer1f81QMAAEQeHewk873... | [
"\\angle{4} and \\angle{2}",
"\\angle{1} and \\angle{3}",
"\\angle{1} and \\angle{2}",
"\\angle{3} and \\angle{5}"
] | null | 2 |
math | pre-k | select-solid-shapes | true | false | Which shape is a cone? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAASqklEQVR4nO2dyW8cV37Hv6/26oWkRFKUZFu0HYvyQlmWLNsTIJPT5GBMAiSX8QBJTkH+gdxyS3LJIUD+gYEHCAI48TbjTZasOLahkRfZHmksaWZkaWRAiqGF7H2t6q4lh9evFzbFTd1d2+9zEdgsdj91f+vXr97yKeb7vn+nBfyhAVRdwPFBEKFDYUBWBg6mgAUNYHds3/+yEnSzCGLrvDAFKNca/Id9GnAozVNNEGGj6gLf1oHbLeBqA5AqDv8FhZYIM1mZZxQ... | 0 |
math | kindergarten | subtraction-sentences-up-to-10-what-does-the-model-show | false | true | Which subtraction sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAASwAAAAyCAYAAADm1uYqAAAQ90lEQVR4nO2deXAU153HP3NoejSHRhrdEkLiEAKJU5hDwjZ4nSy2ceyEI3YWr6M1bKXirTh7VOU/X1W7WynvJmG3andTMXaoVMgSAt5lvUDsXYMhjmUIDCAbgTQyl5CEJEbX3GfvHz2a0WV0II1mvO/7z6iP1/37qPv7e93vve5WybIsIyQkJJQCUs92AEJCQkITlUhYQkJCKSORsISEhFJGImEJJVTNLddnO4RRmkpMgmPmdK+YtAmMQ+j/ufbtP0z9WRs1a6up27l... | [
"6 − 2 = 4",
"7 − 3 = 4",
"6 − 4 = 2",
"6 − 3 = 3"
] | null | 3 |
math | grade-2 | choose-the-appropriate-measuring-tool | true | false |
Which tool would you use to cook a turkey for the correct amount of time? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAACoCAYAAAACcRc/AAAfJElEQVR4nO2de5QU1b3vP7uqu6e7p7sHmBlgBjCgMgzHtcJDGMDgk2TlHEAFo1Fi0AQNi2s0nuTkGmI4ayXLEA0mehJ8HDUvzONETQL4SNQjCZr4YAbi1RsOM6jcEWaG4TEw0z09/aza94/qru6eB8wM/cT6rtVTU1W7du2961vf/fv9au8qIaWUnVF4vw8CGsQlFiyMGDYBXhWmu2GCA0RnRMpGf6GLZeFswgIf2N7rM1ZqHDCj3GCdBQsjRUCDliAcjsL+PlD... | 2 |
math | calculus | find-inverse-functions-and-relations | false | true | The graph below shows a function. Is its inverse also a function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AAB1B0lEQVR4nO39eXRU95kn/r9r0V6SqrQLgcAYQwKWMIsACYnFENvthQ6yMzj5JWn3cXePM52l+/TpOX369ORMMv765JzudJ9OJ55MZjKx850+30xsY4fFMsYgQEgGgQAZyTZgFu1SqaTat7v+/igkI7Op4H5UKtX79Q9HpbpvPdxbdeupW0/da9J1XQcRERERERnCnOgCiIiIiIjmEjbYREREREQGYoNNRERERGQgNthENGnTpk145513Jn/es2cPvvzlL0PTtMQVRUR... | [
"yes",
"no"
] | null | 0 |
science | grade-5 | identify-mammals-birds-fish-reptiles-and-amphibians | true | false | Select the reptile. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAAD9/klEQVR4nOz9WbBt63Xfh/2+bjZrrd2c/p7b4Da46ImGIACSIimREiVRUtQ5lBLLaRwpFenFKTlVrjjlPLgqD3FVknK5kvjBch5sl61ySTEdRYpIUZRCsROJhgQI3It7L4Dbn/7sZnVzzq/Nw/jW2hs0VAXyvDhV3MCpc+45e69mrjHHN8Z//P//ob54XspH5nBg+MOvP/z67+XXKsFrG7jr4YqFHz+Wv9d/GLh/+PXf968DAx+Zy5/X6eLv9R8G7h9+/f/D1y5... | 0 |
math | kindergarten | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABSp0lEQVR4nO3deViU59U/8O+wDYjAoCwi6gy4IJjIuC+JLHHJYlSsSdssDdhmaftLGmyT9O0WsWnftE0aMUnfLkkq2dM0Rowxi8Y44haMwUEjiBEYVEQEZQYUZhiW3x/IhGWWezZmgO/nurwC89zPMyfKXJy55zznSDo7OztBREREREQu4ePpAIiIiIiIhhIm2ERERERELsQEm4iIiIjIhZhgExERERG5EBNsIiIiIiIX8vN0AOR5xtZ2GA1taDW0odXQjlZDG4yGNvj... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABcp0lEQVR4nO3de1zUdb4/8BfXARFmUC6i4gx4BUnGS16ouGiaZSqul7bLLrgn23Z/teF22bNnN8XaPe1ubWK1Z3fTVrpnecHMMs1EvBRmOJiAmMAQICIoM6Aww/X3BzJxmct37gO8no8HD2e+38/3832LMzXveX8ubp2dnZ0gIiIiIiKbcHNzc3YIRE7n7uwAiIiIiIiIaHBhoklEREREREQ2xUSTiIiIiIiIbIqJJhEREREREdkUE00iIiIiIiKyKU9nB0DO19r... | 0 |
math | kindergarten | subtraction-sentences-up-to-5-which-model-matches | true | false |
Which picture shows 5 − 4 = 1? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAABKCAYAAACiqlhpAAAOEUlEQVR4nO2da3BT55nHf+fIkuX7RbbxDWMHjE1dg4Hhlh0oNGxo6QSShWanZQOeIXxLp3SG3SF8WTqTSZZMd2Bymd2BaQt0SJqlGSjpTLPMNl7aJIChicEJBpuAARtkbGPZFtb9nP0gdASWLAlZ8hHb9/cF3st59fz96H/e95wjvZJUVVWtbrg6BqM+8KoIBIIkkSZBjgFqM2GaCSSrS1VbR/QOSyD422NJLqR1jfkLZSaoy/K7UyAQJIdRH1y5D3fc0DkG8oj... | 3 |
math | pre-k | rectangles | true | false | Which shape is a rectangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAEd0lEQVR4nO3dzWtcVRjH8d9MXha11Z3iwqW676b/qGsVBQXBIm66EYQu2tBCgkLATqQEWmpSGEonL8OMMx4Xx6C2TTpn7r3Pfc453w8EMgxzcxZfkvBknptBCCEczaXfz6WTpbQIAhrbHEg3NqSPr0kfbEuDo1kIDyZ9Hwslu/WutHlwHh98uC19+k6sEGjqZCk9OpP+mEujc2k4WcQniAxturERm5Kk06U0XP7nCaBNF039GaRhv0dBLQgNJggNJggNJggNJgg... | 2 |
science | grade-4 | 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? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAACgCAYAAADq8hJGAAAaV0lEQVR4nO3deXwU553n8U9V32rdoAMJSQghxGVMjIkDPgAbe3zE1ySTjCdOMnZmM5P4tZnNxpnJZjezMzvxzsZxdl4z8dgz2UmcxE5CPIljY8DG4HAfBmwOmVsI3WrdZ9/dVftHtUoIydDYEtWSfu/XixdQ6pZK/VR/63l+9XQ9iq7rOkIIAahW74AQInVIIAghTBIIQgiTBIIQwiSBIIQwSSAIIUwSCEIIkwSCEMIkgSCEMEkgCCFMEghCCJMEghDCJIEghDBJIAg... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAiAAAAC4CAYAAADaI1cbAAAnD0lEQVR4nO3deZhUV5038O+9tVf1Tm/03kDTEEjAIImQBUhIzDJkUWPMTKIm8c2oPOrrq1FfHWcck+gY47zPjDEZM+OaRDFqFgIkBCL7Epaw09A0Te9dva+11733/eNWV9MbFNB9762q7+d58nS4XcvpOqd+9bvn/O4pAYACIiIAiqLAHQRqvMCABIQZHYhokpgFINUEVDiBPCsggAkIEUW4Awr29evdCiJKdNenAWa9G0FExnHGq/6cbgUqXerZChHRZBiQgNM... | 1 |
math | kindergarten | more-or-less-likely | false | true | On which color is the spinner less likely to land? | "iVBORw0KGgoAAAANSUhEUgAAAbEAAABkCAYAAAAIVA6ZAAAPvElEQVR4nO3daXRUZYLG8f+tVCpVlaUqEBAbRQguGJYACS4omyOIe4O4sLg77ltPo23b2u30zFEb2+mx7RlHGTcQmLZZmm49zqhsHpduISEEGHEUwuLYtIipSqhUQpY7HyIjkEpIUvfWrao8vy+cA6n7PsWHPOe+973va5imaSIiIpKCXE4HEBER6S6VmIiIpCyVmIiIpCy30wG6IxKpIxQOEaoOUR0KEQ6FAAgEg+QHgwTzgwQDQbKz/c4GFRERWxnJvLBj3759fFj... | [
"white",
"green"
] | null | 0 |
math | calculus | identify-graphs-of-continuous-functions | false | true | Is the function f(x) continuous? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AABqIklEQVR4nO3de1hU5703/O+cgOGMgEBQMGo0YkDFoMFINNUmNjZpNLWm3WmT7ra7zc6h7dO93x7ePn32bm3ePm3T7nSnadpnp0m6k6dpbHPUoDEVD4F4QkUhRhGVg8hhYBjmvGbNWu8f4xBRkUHvmxng+7muuZjDmi8/hpk1v3XPPWsZdF3XQUREREREQhijXQARERER0XjCBpuIiIiISCA22EREREREArHBJppAtm/fjmnTpmH16tXRLoWIiGjcMvBLjkQTx8qVK/H... | [
"yes",
"no"
] | null | 1 |
math | grade-8 | make-predictions-with-scatter-plots | false | true | Based on the scatter plot below, which is a better prediction for x when y = 62? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAnHUlEQVR4nO3df3SU5Z338U8SEiYzEJNgJzhJUIGEgIdfJ0hItbjhIaya8LAUrFiioOiButKVdbsn58j2sNsqai0UaqUWu8DanmNbNHWRZQsWe9znaRLrnEVREhKl0UwCYSHDr/wOzPMHT6aEZAZirpl7Mnm//mLua5zv9/acls+5/N7XHePz+XwCAAAAYESs1Q0AAAAA0YSADQAAABhEwAYAAAAMImADAAAABhGwAQAAAIMI2AAAAIBBBGwAAADAoIgK2O3t7Wpvb7e... | [
"50",
"17"
] | null | 0 |
math | kindergarten | rectangles | true | false | Which shape is a rectangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAACeUlEQVR4nO3UO25UWRhG0b/Kj8BAk4E6IOzuITAvD4SBMQMeGQHu1AZLGJduB1dIQIp7X6lYKzpHJ/mCrbNblmW5upt5fztzc5i5XwZ+2elu5snJzF8XM8/PZ3ZXX5bl9fXWszhmL/+YOX13u17+PJ/559FaIfyqm8PMm88zH+9m3t7O7K/v1weR8ZCenKxNzcx8OszsD989wEP61tTXZWa/7RR+F0IjITQSQiMhNBJCIyE0EkIjITQSp1sP+NmrVx+2nnAULi9... | 0 |
math | grade-2 | which-shape-illustrates-the-fraction | true | false |
Look at the colored part of each shape. Which shape shows two-thirds? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAACdUlEQVR4nO3ZsU5TYRiH8f9pCwOCbhbd1YXEkYTB1bDgNbh5C06GhWtg4xJIHEy4AWOYdUDcLWsLTUCaz+GkiY6e1p60z/ObzsnJm77Jc76coVUppQzukh/jZDRJ7ku0QnpVstVNnm0k/fWkGtyWcj5sey0twu7DpHc5rm+erCcvHtRvg1bHaJJc3CQ/75Lv46QzvK8fGHs1bXXrtklyPUk6kz8eaDVN2/4qSafdVbRoBocxOIzBYQwOY3AYg8MYHKbXZOj9pzf... | 2 |
math | kindergarten | identify-pictures-with-symmetry | true | false |
Which picture has symmetry? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAPSUlEQVR4nO3d629cd17H8c+5zv3ia1KHONk0iR2nKSrLUqmiCCgU2F2k3S5qebbaB0jwEImVkHiCxD+yD5AQUgpiF0p3W7SVKlqRZUW2ufmSTey4dhxf5345tx8Pju06ZkrGzsx8z4w/Lyka25Oc3/Hl7a/POROPppRSaw5wvwaUfcBTIKIuMTUgYwCXksApG9DWmkrdKEnvFtHJ82oWMBdq4Ssv2MBUKqyTiLqj7ANzVeCxA8zXAL3khXcwPqLuyxhhawBQ8QH... | 0 |
math | grade-6 | quadrants | true | true | Which shape is in Quadrant III? | "iVBORw0KGgoAAAANSUhEUgAAAfkAAAH8CAYAAADSe9ZXAAA4FklEQVR4nO3df3RU9YH//9dMhvz+QSBAAoSoFVAxokCRH4ZKkU9RXFSU4+GjbT26PUvP8eDZdXuOy3Z7up7K2rPHVql1t+z6ke7Wbb9ysD9ocBFUCKGIAYXIrwVaAxgSEsjvTGYm8+P7BzspMQnMwNy5c995Ps7pOZ2bmXtfvJ25r/tr7rgikUhEAADAOG67AwAAAGtQ8gAAGIqSBwDAUJQ8AACGouQB6Je//KV2797d9zgYDOoHP/iBvF6vjakAXCtKHjDchg0btGH... | null | [
"iVBORw0KGgoAAAANSUhEUgAAApcAAAH8CAYAAACEt4SVAAA9SklEQVR4nO3df3RU9YH//9dMhoT8JhAgAULUCqgYUaDIr1BZ5LMoFhXlePhoW49uz9LP8eDZdXuO63Z7un4raz97bJVau2XXj3S3brtysK0YXAQVYhAhoBD5JdIawJCQQH5nMjOZH98/0kmJScgMvG/u3MnzcY5H52bm3ldvZ+685n1/uSKRSEQAACDpuFwuuyNgGHLbHQAAAADJg3IJAAAAYyiXAAAAMIZyCQAAAGMolwD061//Wrt37+55HAwG9cMf/lBer9f... | 0 |
math | grade-3 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines parallel? | "iVBORw0KGgoAAAANSUhEUgAAAFYAAABoCAYAAABrJgcqAAAKQklEQVR4nO2de1BTZxqHn2MwGCTTitjRacF2dtpaUbbjZVAoKFqtW2tt613aSm2tuku9Vq3jdNe263irVq31tsVit4iLrruu62XQikiBslra5abiOkqooyuI2mCyBOLZPzCRS+BAcpJzgnn+QpKcvPPwec4v3/udL4IoiiI+ZKeD0gW0V7xK7J3bJqVLaDVeIzYjJYsj248pXUar8QqxR7YfY9vcnUqX0SZULzYjJYuvP9wDQLmhQuFqWo+qxWakZDUYqV16dFGwmra... | [
"no",
"yes"
] | null | 0 |
math | algebra-1 | identify-functions | false | true | Look at this table: Is this relation a function? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAABnCAYAAABFEg2lAAALOUlEQVR4nO3df1CUdR4H8Pf+gOUWCVxYYmU3UAgMOk3lh+ehI5duJ03jXA01k8zdBZfVRUJDRTnNnIVCh/6h3rkRN+UVBRzMWJzhCd2dd2EaBLGDlyViSLusA/hj+bFIy7LP/ZHuSOqD7gLf/bKf18wz4z77MPN2vrx9fvg830dSU1MjgBByQ3IAOHJnMesc5Ir0vq00Hl5EyjoAId6MCkKICCoIISKoIISIoIIQIoLrgry8/AMY1rQjMvBuAEBccBL+vKYVLy//AH7... | [
"no",
"yes"
] | null | 0 |
science | grade-3 | use-data-to-describe-u-s-climates | false | true | Which statement best describes the climate of Atlanta? Atlanta, Georgia, is a city in the United States. It has a humid subtropical climate. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAALOCAYAAACTXGSDAAEAAElEQVR4nOzdd3yV5f3/8deZ2ZMsIAMSZgiEsMIOsqRFUBCq1kWrVq20fPtV29rapdZfl7ZVaPtt60JtnUEEQRGVsEOADAIJJJBFIHuvM6/fHyFHAkFATnIO8Hk+HrTmPvc555Nz3znnfa77GhqllEIIIYQQQgjhFFpXFyCEEEIIIcS1RAK2G0lLS0Oj0aDRaBg3bpyryxHXoVdffRWNRsPYsWOd9phf97zujVr6Uk1NDU888QQJCQn4+vri7+/P6NGj+eUvf0ltba2... | [
"Winters have lower temperatures than summers.",
"The summer months have much less precipitation than the winter months."
] | null | 0 |
math | pre-k | one-more-with-pictures-up-to-5 | true | true | Count the trees in this group. Which group has one more than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAABpQklEQVR4nOz9Z7wk+Vnf/X+qqrurc04n9cn5TM4zuzu7KwmUQEIiSIAJEsE2CBN8277BmRsbMNgYDA6AbIQJEogoISFptXknx5NzTp1zV1VX+D8YtDfcGBv4a2d2V/V+MqfP64Rf/77z4KrfueoqwbIsC5vNZrPZbDabzfZlIT7qBdhsNpvNZrPZbG8mdoFts9lsNpvNZrN9GdkFts1ms9lsNpvN9mVkF9g2m81ms9lsNtuXkV1g22w2m81ms9lsX0Z2gW2z2Ww2m81... | null | [
"iVBORw0KGgoAAAANSUhEUgAABCEAAAB+CAYAAAAa5QvPAADTsklEQVR4nOz9aZgjbXrQ+f4jQlKE9l1KZSqV+561r2/Vu3S7bbfby4DtBmwwy4CBGcAHDD4+DAZmDmYzqzEM2Ljty9iA7fYGNu1e3/2tfa/cd2UqlZnadylCUkTMh2p64ABzzIy7qvrt+H3RVaUPFXruunWF7nie+xYAE4vFYrFYLBaLxfK7wjRNTrqw3YaGDn3rbttisXydsgnglWDKBXHHs78TsIoQFovFYrFYLBbL75oTzeRu/UVfhcVisbxcrvgg5gDbi74... | 0 |
math | kindergarten | one-more-and-one-less-with-pictures-up-to-10 | true | true | Count the snowflakes in this group. Which group has one more than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAA/kklEQVR4nO29aXSc13nn+bvvUju2wkosBEBwX8RNEkmJImXLWmzJju20ZaeTbjt2pie9pedM2u2eMx/a3X3mZNqZ+TCn0+mcns7YcceOLSdWbMt2LFuUREpcJK4iCVIgQIIAARD7jkJVve9758MtVAEk5XihhAL1/M6BCFUVqm69t/64fzz3uc+jtNYaQRAEQRAEQRDuCtZyD0AQBEEQBEEQ7iXEYAuCIAiCIAjCXUQMtiAIgiAIgiDcRcRgC4IgCIIgCMJdRAy2IAi... | null | [
"iVBORw0KGgoAAAANSUhEUgAABCEAAAB+CAYAAAAa5QvPAAB1o0lEQVR4nO39aXRc13nnjf72GWpAFaYqzDMIECTBeRAnkdRga7AteUoku5N07Njd7+0x711v4rjvuvddnXTfu7rj9P1wV6eTXv0mbTkdO7acWI4lD7JNDaREUpQ4SSTAASAxE/NcKNRwzr4fdo0kKI8CiuT+rcUFEChUnTq7/uf897Of/TwCkGg0Go1Go9FoNJpfC1JKRuPQswQLDiS129ZoNPcploBiE9YXQbVH/UyggxAajUaj0Wg0Gs2vjdGY5PT8Wh+FRqP... | 1 |
math | grade-2 | interpret-tally-charts | false | true | Carly's class voted for their favorite vegetable. Carly made a tally chart of the results. Which vegetable got the most votes? | "iVBORw0KGgoAAAANSUhEUgAAAWIAAADWCAYAAADrcIitAABNvUlEQVR4nO2dd3xUZdbHv3daCmlAaKEkoffQBd1QRFBBiKioLEVlWXVREV7XfdWVVQRFUdeG4qursKKui0gXxAIklICIkNBLQgIkgZA2mWSSTLvvH0MmmSQzmckkmZTn+/nwIXPrmTszv3vuec5zjnTPmq4yAoFAIPAK3z2UhMLbRggEAkFzRwixQCAQeBkhxAKBQOBlhBALBAKBlxFCLBAIBF5GCLFAIBB4GSHEAoFA4GWEEDdS1JoO/HP6GV6KOY5a08Hb5ggEAg8... | [
"pea pods ",
"carrots ",
"radishes "
] | null | 1 |
math | algebra-2 | domain-and-range-of-exponential-and-logarithmic-functions | false | true | What is the range of this logarithmic function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABl3ElEQVR4nO39e3RU553n/35KVbpfkJBAkoUlwBgcsISNjW0wGNw4tmPHTiDJ4OTk4hz3pJ3JfX4ns7L618mks7w8Od2d9GqPk8m4J2M7s/r8MvE0ccfYguCAgQgbjAwCZIyxwAIBut+qVJddVXufPwrJiItRUfuhVNb7tZaXXCXtT33Zu2rvbz311N4ex3EcAQAAAHBFVroLAAAAAD5KaLABAAAAF9FgAwAAAC6iwQYwTk1NjXbt2jV2+/jx45oxY4ba29vTWBUAAJm... | [
"$\\{y \\mid y \\leq 9\\}$",
"$\\{y \\mid y \\geq 9\\}$",
"$\\{y \\mid y<9\\}$",
"all real numbers"
] | null | 3 |
math | grade-3 | identify-multiplication-expressions-for-arrays | false | true | Which expression describes this array? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADiCAYAAAB0rbDnAAASV0lEQVR4nO3d349fd53f8dc5Z8aMHdvjtYM9TmAT0otAA61MRSsCUlupyzpCxKHdVMtN92KFhNI7/hZUCogrLnapCiaOWEXRShGq+BUhjBp1AxKLbEgyYyf+MZnJzNjzPef0wkQo4Uf8/c75zjnzncfjxjejz/d9+fRb53xO0bZtGwAAoBNl3wMAAMAsEdgAANAhgQ0AAB0S2AAA0KG5Pn/8zTp5/faddyzvPVDknqrPaQAAYOd2LbBf2Wrz8/U2v1hvsryVXLvdZqt... | [
"3×1",
"4×1"
] | null | 1 |
science | grade-8 | use-punnett-squares-to-calculate-probabilities-of-offspring-types | false | true | This passage describes the antenna type trait in fruit flies: Most fruit flies have a pair of antennae on their head. But, some flies appear to have an extra pair of legs on their head instead! These flies have a mutation, or change, in a gene that affects body development. This mutation makes the cells in the fly's he... | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD6CAYAAADUdTPBAAAkA0lEQVR4nO3de3CU9b3H8c9uLptkE0gCKbcQAjoiFwFbLKLlJlBEHY5SvLVeYXpmjqee6dF6ptPpdFqPf5zTc6adcbSj3FRqizYWFWsTTAjhcooS1CIKlYQQcgVyIWST7G6y2T1/bLJ5IknIZTHJb9+vGWb2YZ999kceMvP5fZ/fxRYIBAICAAAAYAT7cDcAAAAAQPgQ8AEAAACDEPABAAAAgxDwAQAAAIMQ8AEAAACDEPABAAAAgxDwAQAAAIMQ8AEAAACDEPABAAA... | [
"1/4",
"2/4",
"0/4",
"4/4"
] | null | 2 |
math | calculus | identify-functions | true | false | Which of these relations is a function? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAATIAAAE3CAYAAAApC812AAAW9UlEQVR4nO3dXWyT96HH8Z9D3p230SZkYoGmh5JohDmIl4SLVaTaRTOSTWwamTQlGlErFalcgVauoKzrVFDZxRoGuylaoknNztqhkopqlZpqmpSXFuHQUIVTKAHWQyAciAlxYoLjc2HsxEkIb378+G9/PzfFjnn8h4Zvnpe/n78jEAgEhu5I57zSqF+6GxAAxLVUh5S7SHouW1qSLjmGfIFA7y27hwUAj6cqT0r92ht88N10qcwZrBwAxLNRv3R2TLpyR/ofr5R... | 3 |
math | kindergarten | count-corners | true | false | Which shape has 3 corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAACeUlEQVR4nO3UO2scVxyH4f+sLoVv6RzyARITcG1//1a1C9/6KK1kC6xomRSDIbW8vBvWz1PNcDjwK17Osq7ren0/8/lu5nY/87AO/LDzZeb52czvT2Z+vZxZrr+t69XNsWdxyt6+mDn/dLf9/HY58+rpViH8qNv9zIevM3/dz3y8m9ndPGwHIuOQnp9tTc3MfNnP7Pb/OYBD+t7UP+vM7rhT+FkIjYTQSAiNhNBICI2E0EgIjYTQSAiNxPljL64z8+e7qwNO4f/... | 1 |
math | grade-8 | quadrants-and-axes | false | true | Which quadrant is the point V in? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH9CAYAAAAgWgsdAAA9AElEQVR4nO3dfXRU9aH/+89MhoQkJCEQSAKGqBWRh4A8iDyFiohFsYgPLMvVtpxa77Fr9Wq7PP1dD/W4Wk/lem4Pp4qW3zm0vXJ69NSf/LC2NFgEEQIUaUAgQKCAEsCQkIQ8ZzIzmZl9/4CJCSSQ6HeyZ5P3a62uZvYMez79dmbPZ77znT0uy7IsAQAAADDCbXcAAAAA4FpCwQYAAAAMomADAAAABlGwgT5u9uzZevfdd9su//GPf9To0aMVDoftCwUAgINRsIE+bvz... | [
"Quadrant II",
"Quadrant IV",
"Quadrant I",
"Quadrant III"
] | null | 1 |
math | pre-k | represent-numbers-with-pictures-up-to-3 | true | false | Which shows 3? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAWb0lEQVR4nO3dWYwk92Hf8W9XVd/n3MfOzszeB8kllwyXMigzjCWFphQ6ZiiHSBQbcKL4IUEEOQiQIIjzEMAPfkgAI4hhJEAMIwpsRYlkUpQSyBIpS6QpXiIlUdpd7jG7c+wcPXff1XXkoTkzOzszu7PkzlRPz+8DEMOeru6pbvRvq7r+9a9fyPd9f8qGy2UouOD4iMgOsUKQNuFYAnoiEJqq+f6by0Gvlsj+81gGrEvlxo2+CJxINtIpIjuj4MLFEkza8EEZjGW... | 0 |
math | grade-1 | select-three-dimensional-shapes | true | false | Which shape is a cylinder? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJ8AAACfCAYAAADnGwvgAAAU5ElEQVR4nO2de3QUVZ7HP+n0K51Hk6QDCXSTNw8FCfIMCKjAKMrT8Yy7e3bOzNkzZ1nnnN2ds7vO+GIejsM46iizwqgjrqgogjA4wqCAAWWAYEIk4ZUEQiDpTAgxIUmThDYkZv/oriZNAiSkum9Vd33+wVRX3/rZ+eZ21a17PxXR3d3dXdcBFe1wqQs6u9HQCAj6CIiNhGwLDDNCRN033d0FLtFlaYQb0+JAf7rd80OKEUZHe5KpoREILnVBeRuc74BT7aBzdXp... | 1 |
math | kindergarten | count-pictures-up-to-10 | false | true | How many party hats are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAE0CAYAAABZ4EexAACrNUlEQVR4nOzdZ3Qc532w/eue3QWwFb0TIAmSIMAKdknsqpZIySWJi2Q7eRP3EtuPFdmx7EdO7Di2Yjt5ErknrmpOHEu2SHWJFElJ7J0ECRAAid7LLnYX2DL3+2FBkBBIirIwJAj8f+fYBxgMFjPLS3Pu2WlKa62ZoLTWoDVKKVDqai+OmECkLWEVaUtYRdoSVpG2xh/71V6AsaZNk96je2nfuZVA1RFCLfVorclatprMpWvIvf4mlP2trbbWGgUS7SQnbQmrSFvCKtK... | [
"2",
"10",
"7",
"9"
] | null | 3 |
math | grade-7 | mean-median-mode-and-range-find-the-missing-number | false | true | Anita has the following data: If the mean is 6, which number could y be? | "iVBORw0KGgoAAAANSUhEUgAAASMAAAAkCAYAAADCUlwhAAAG4ElEQVR4nO3ceVBV5xnH8e9dWEVZZROvIC4Qg0ua1gpRJCbaOiJjQtQ0iWZiTUpdRptUm6YzEZ2ktmmbqDVtWms6LRVtXWMdMJWIRgWtoMRUSCxRMlY22cJy4W6nf5gy3tJUKedw7vQ+nxn+4D0zz+85c+Dh3veeg0FRFAXA5nLQZe/GqbhQEEII7RgAk8FIoI8/vkbzrTVFUZRORw9WR4++3QkhvFKg2Y9Asx9mu8spg0gIoZsuRw8+RhPGLhlEQgiddTlsGB0up95... | [
"27",
"9"
] | null | 1 |
math | pre-k | one-more-with-pictures-up-to-5 | true | true | Count the cars in this group. Which group has one more than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAAezUlEQVR4nO3daZBd5X3n8e9zzt3v7du3+/be6kUS2hfEvgQjsIid4LggIcSZCUmAiSeVeCY1ceJxpiaJK5VJmEoGOxPKZFJ2Jh7jKduQiWMXthObgPECNsYCtO9qqVut3rvvvp7zzIvbaiQksI1vCwS/T5VK3eee5Tmn3/zuv/7neYy11iIiIiIiIk3hvNEDEBERERF5K1HAFhERERFpIgVsEREREZEmUsAWEREREWkiBWwRERERkSZSwBYRERERaSIFbBERERGRJlL... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA7sAAAB+CAYAAADlVwZsAABXSUlEQVR4nO39ebxkV13v/7/W3lW75vHM8+l5ngOZ0yEBggmQoCJXRAKI+lW83t/Vy3X4XvX7vaJ4VeQqAvpVEQXhCggSSMCQeYSQdCc9T2ee51Nz1Z7W748653R3uhMSSCfk5PN8PMLp7lO1a9VeVTz2e3/WoACNEEIIIYQQ4iWhtWbShjNlKHjgytW2EC+LgIKECRui0GKBQsKuEEIIIYQQL5nJmuaJ/CvdCiFe2y5PQuCVboQQQgghhBCryely/WebBZti9Uq... | 0 |
science | grade-4 | identify-minerals-using-properties | true | false | Select the one substance that is not a mineral. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEYCAYAAADPtGNgAAEAAElEQVR4nOz9ebBk2X3fB37uufuSe758e+1VvaIbIDaCICUSJCVSS1iyLY21hWVprHHMhByS7fHEhGNCM5KtsCwv8sia0DgkjSTKokNkgBQXACRIYiO2RncD3eju6tqr3v5e7pl3X86ZP+6r7upGNwiKaLIJ1bfi1c2XmS9fvrzne3/n/M739/1pX5sr9YgPDZ2HeIiH+DfAsoJrERzm0DHgB9v1/eIhsR7iIX5naOjwiF/fDqvX7xcPifUQD/E7x30eFer1+8T... | 2 |
science | grade-3 | compare-strengths-of-magnetic-forces | false | true | Think about the magnetic force between the magnets in each pair. Which of the following statements is true? The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | "iVBORw0KGgoAAAANSUhEUgAAAhAAAACBCAYAAACRpYNGAAAOE0lEQVR4nO3de2yUdb7H8c/M9DK03dZCB9vSeGAZRNFoVkAoejhYFAu7ZGtMUU88OckaVwWNlyCXeIlRSYBjQWi4qMQGF1EOAcw52D2JLIURApRiwXBE1iJQ6wwUgZYldIDOzP7BdrJoafsrM/PMTN+vpAnz9Ll8nx+/55vPPHOpLRQKhQQAAGDAbnUBAAAg8RAg+qCysjLZbLarflwulyZOnCiPx2O0r4MHD8pms2nHjh3GdQQCAb366quy2+169913jbcHEHnx0B8... | [
"The strength of the magnetic force is the same in both pairs.",
"The magnetic force is weaker in Pair 2.",
"The magnetic force is weaker in Pair 1."
] | null | 2 |
math | algebra-2 | domain-and-range-of-exponential-and-logarithmic-functions | false | true | What is the range of this exponential function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABocklEQVR4nO3dfXhU9Z03/vc85zmTB0hCIAFEooEEiAYNEMGFqhW1hW4Xu3et9rbbtVtrt3tdve9e3m2328sfd6/dPmxddfvz7oO69/62W7doKxgQBQETJRIhkIAQA+SBkIdJ5vnhnDNzzu+PMCkhBGbC+WZmkvfrH53hnPd8cs7Mmc985zvnGDRN00BERERERLowJroAIiIiIqKZhA02EREREZGO2GATEREREemIDTYRjVNaWoqmpqax2+fOncOcOXPQ1dWVwKqIiIh... | [
"$\\{y \\mid y \\geq-6\\}$",
"all real numbers",
"$\\{y \\mid y<-6\\}$",
"$\\{y \\mid y>-6\\}$"
] | null | 3 |
math | grade-8 | apply-multiplication-and-division-rules | false | true | The number line shows an unknown number, v. Is 4v positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGA0lEQVR4nO3dT0yTdxzH8c9T2kIobrKJzBnFg9GlMWEqVCC6mezgwamp8cKFcVjMMGa3abJkHrbFxO2q2Uw8kUg81TgXFw+LqV5oKxCWTnR/AurGVEamEyyl0GeHliITxMS2v5a+XxfaH8/hkzw9fPLN7/k9lm3btoAi1tXVJcuy1NraajoK8oR7DgAoZE7TAYCXdffuXdMRkGfccwBAIXvhgp1IJNTT06NQKKSVK1cyOQJMefindPVb6d4t6f4tqXaj9MZG6Z2PpOW... | [
"positive",
"negative"
] | null | 0 |
math | grade-1 | more-less-and-equally-likely | false | true | On which color is the spinner more likely to land? | "iVBORw0KGgoAAAANSUhEUgAAAc8AAABkCAYAAADg1LuyAAAPpklEQVR4nO3da3STZYIH8D/Qll7Jm16gAoGWurDQCzRv2dFRFLqMAztqRWdsEkq5qMfbOIzLpYgXxjl7BgQvO8uZ2yqyy4G0MNx0vikIdc5ZFPKmFKgLlUIllRHakjc0Ia09tvsB2GVt2ibpe0nC//cxefM8/3z6n+e9PO+w3t7eXhAREVHQhusdgIiIKNqwPImIiELE8iQiIgpRnN4BwuHzXYPskSG7ZbhlGR5ZBgAYBAFGQYBgFCAYBKSkJOsblIiIYtKwSL5hqLW... | [
"white",
"blue"
] | null | 0 |
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