Datasets:
stemdataset
/
STEM

Dataset card Data Studio Files
xet
 Community
1
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
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listlengths
2
4
⌀
choices_pic
listlengths
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⌀
answer_idx
int64
0
3
technology
grade
icons
false
true
This is a(n old) logo of which famous app or program?
"iVBORw0KGgoAAAANSUhEUgAAASwAAAEsCAYAAAB5fY51AABxZUlEQVR4nO29a5hcV3Um/Na1u7qq1dV39U0XW0KWbBkjWx4bI0OMAQMxeDIxhlwYT3AYICFDcAhjEnCABH+MJ3wk5iMZYvgIkwDGMCFRwNgYcCRjE+SLbAu1jCTr0jf1vVpd1dVd3VU1P06v07t27X3OPufsU1Ut1/s8epbWuZ/q7lXvftfaaweePnQUddRRRx3rAeFqP0CtIJBdKALA7C8KaL00eEHYOtYQPAsUNrn3VcB/7qq+yDaPRjHfmwMAFGNNAWdPcuEi8HJ...
[ "Cash App", "Instagram", "Amazon", "Twitter" ]
null
1
math
grade-1
which-table-is-correct
true
true
Todd saw the following animals along the coastline:He wanted to know how many of each animal there were, so he made a table of the animals. Which is his table?
"iVBORw0KGgoAAAANSUhEUgAAAQkAAACxCAYAAADXhkjIAAAxg0lEQVR4nO3de5ScVZ3v//dz2c+9rt3Vl3R3kiYJuYDEQEQUDAjO6IiIAyOMP5mZiKMHl0cYdPSgiIOiS2HOgCxFHETQNYp4QcfjqEt0gUdFYICEBBIIud8v3enqrq6uquf++6MaxKMJJGlSfdmvtfJHOumn9u7V9an97P3dz1auv/76FEmSpEPQAf7lX/6l1e14xdTKu9n63Hoc16b/pDNBUVrdJEmaUvRWN+CVNDywh1/d+jfM7dYozDuJWk8/TqGn1c2SpCll2ob...
null
[ "iVBORw0KGgoAAAANSUhEUgAAAkAAAACxCAYAAAAsywKjAABQcUlEQVR4nO3dd3Rc1b33//fpZ/qMuizJtnA3xRhEL3aooTi0BELg3piS4DyhPMDlBgI2JpBfgEsJT2gXDEkuCQFsQrihxYBN6MbdIIN7r5JVR1NO/f0xtsCxjZusUdmvtbxYzIzO2WckHX1ml++WJk6c6CMIgrALEydOzHcTBEEQOpwKcOedd+a7HQdMqnEdKxYvJBgKUH3wCSBJ+W6SIHQrIgAJgtATqfluwIHUVLeedx75Pv3LFRIDDiZVUU0wUZHvZgmCIAi...
0
science
grade-8
predict-heat-flow-and-temperature-changes
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
[ "iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAaw0lEQVR4nO3deXhc9X3v8fc5s49Gm7VatrzvG9iy8YINmCXEECdcCARCAy0JoXnS26fpkzZNb9s8uW3zhN42N7nhtjeQpAFSWpYWMBBsg7Ex3m0Jr5JsybZsLZasfTQzmuXMOfePkQbLkizZMz4zsr6v5+Hh0W/O8h3P6KNzvnN+cxTDMIzmMNQGoCcKmoEQQiSFVYFMC8x2Q5EdlOaQYRzwprosIcSNbmUWWGsCsR8m2mFuRiyNhBAiGXqicNIPF8JwKgCqV4s...
2
math
pre-k
count-scattered-shapes-up-to-10
false
true
How many shapes are there?
"iVBORw0KGgoAAAANSUhEUgAAAvgAAAGQCAYAAADbbRRJAAAzt0lEQVR4nO3d23fbVpbn8Q1AFAmSkCjSqVFSkziJ0211OXbGVlIll7XsXNa89Voza/W89V83D/0nzNvkYo+9pKr4Ui2XV9uVeDl2uiqqikmJ4gW8AZgH0pXE0YUXAAc8+H7+AR/CIvHDwT57G0EQBAIAAABAC6bqBQAAAAAIDwEfAAAA0AgBHwAAANAIAR8AAADQCAEfAAAA0AgBHwAAANAIAR8AAADQCAEfAAAA0AgBHwAAANAIAR8AAADQCAEfAAAA0AgBHwAAANA...
[ "10", "8", "1", "9" ]
null
3
math
grade-5
adjust-a-budget
false
true
This table shows Jenny's October budget. What could Jenny do to balance her budget?
"iVBORw0KGgoAAAANSUhEUgAAApQAAAC9CAYAAAAN8+3rAABb00lEQVR4nO3dd1gUV/s38O8uHURBVNSg7kKERVwWooAYEQVT9MHeldjFggoaRCzxeUSs0VgIxtcQNRpjL4klKmqCKFZQKSoKEkGwgIB0ljLvH4b9sezCzhZEzP25Lv5g5syZ+5yZuecwDc6w3ZYMCCGEEEIIURG3sQMghBBCCCFNGw0oCSGEEEKIWmhASQghhBBC1EIDSkIIIYQQohYaUBJCCCGEELXQgJIQQgghhKiFBpSEEEIIIUQtNKAkhBBCCCFqoQElIaTBLfL...
[ "make balloon animals at another party to earn an extra $20", "increase donation to hurricane relief fundraiser to $30", "spend $20 less on shopping at the mall", "work as a soccer referee to earn an extra $35" ]
null
3
math
grade-2
find-the-next-shape-in-a-growing-pattern
true
true
What shape comes next?
"iVBORw0KGgoAAAANSUhEUgAAAvgAAADhCAYAAAC9ZMGZAAAT6ElEQVR4nO3dT4xd130f8N+978+8eTOcoSYM9YeSXIA2JKT5Z8FSCsiJikJxmpWQrFJ5F3cprwo4XdhNU3uTbutNgSi7Ilk1UReV6xYo5NhwURc1kkaJ1ISBwYisTFEkJc6/9+/eLsYkhyI5nHnz3r33nfl8AG008+45vzP3XH7feefdm5VlWQYAAJCEvO4OAAAAsyPgAwBAQgR8AABIiIAPAAAJEfABACAhAj4AACREwAcAgIQI+AAAkBABHwAAEiLgAwBAQgR8AAB...
null
[ "iVBORw0KGgoAAAANSUhEUgAAAz4AAADhCAYAAAAJS2C/AAAWJElEQVR4nO3dS4wcd34f8F9VP6dnOEPRXFISJa0B7kKC49cKkjaA1lZgyLv2SYhPjnTz+qg9BVFy2PUjuxfn6r0EsHwL7FNs5RBtNgYCrbXYIAqysGN5pdgyBJkcUxQ1JEXOo7u6q3IY8SUOh/Porqqu+XwAHcSZrv//95+q7vrW/99VSVEURQAAAI2QJEnVXailtOoOAAAAzJrgAwAANJ7gAwAANJ7gAwAANJ7gAwAANJ7gAwAANJ7gAwAANJ7gAwAANJ7gAwA...
0
science
grade-2
compare-properties-of-materials
true
false
Which is harder?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AAA1D0lEQVR4nO29eZhdVZ3v/Vl7OvNUc6WqUkklkAFIIARQwiAIKGgLrSIqesVuvbb69qvX9vreV18bfdru2/30c/V249PdNq14EUUcukFBWpEhQoBAAoQEMpBUpYbUXHWqznz2tN4/9qkpqcyV5FTV+TzPqbPP3rv2Wfuc7/mt3/qttX5LvDwu5aoQRFQqVDirpB3Ym4U+ExIaXBX39isVQVY4V0RUWBXytjPO1H6lIsgK55IJ/Vlyap9ybopSocLRqYhyjpEScim...
1
science
grade-3
animal-adaptations-beaks-mouths-and-necks
true
true
Rufous hummingbirds live in the woodlands and meadows of western North America. The shape of the rufous hummingbird's beak is adapted to get nectar out of long flowers. Which bird's beak is also adapted to get nectar out of long flowers?
"iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOydd7xUxfn/31POLigdbCCoVIkiihgQIopY0aixY4ktajRq1FiTGKMYG0ZMjL1iiwZjT/IT1FiAKIIEe0GxYUHRCILc3TMzvz9m5uzZS/FCriV+z8fXfXnv7ilz5pxdPs8zn+fzCOecS9MUay0FChQoUKBAgQIFChT434SUEq01olqtuoLcFyhQoECBAgUKFCjwvw8pJbIg9wUKFChQoECBAgUKfDdgrUV+04MoUKBAgQIFChQoUKBA86Eg+AUKFChQoEC...
null
[ "iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9d5wlVZn//z6h7u3uiQx5ECQMA0hOgiCjA6KAiCggEgyAirKowGJeA+IKil/QRVEkKIgKyxoxrCBIGGYRGNgBExkJgsAAk3r63jrh98dzTlXdnkAPDuL6uw+vfk33vXXrVp06VZzP8/k8n0fFGKNzjhAC/ehHP/rRj370ox/96Ec//m+G1hprLUqpF/tQ+tGPf8rQfeDcj370ox/96Ec/+tGPfvzfjxACzrkX+zD60Y9/2tB94NyPfvSjH/3oRz/...
1
engineer
grade-7
identify-independent-and-dependent-variables
false
true
Hint: An independent variable is a variable whose effect you are investigating. A dependent variable is a variable that you measure. Which of the following was an independent variable in this experiment? The passage below describes an experiment. Read the passage and think about the variables that are described. Dr. Si...
"iVBORw0KGgoAAAANSUhEUgAAAUwAAAFkCAYAAABLkQIEAAEAAElEQVR4nOz915NsWZbeif22ONJ16Iir86bOLNFZuqsNaPRgIAiAxicaxzik8Zngn8HHMTzxgX8B+UAbGMmhAAYkgCa6u6q7dFVmZebNvDq0cO1H7735sI/7vVmADUgbogs0wzELiysi3P2IvfZa3/q+b4l//I//seM/Hf/p+E/Hfzr+/+j4J//kn/xe3lcD/Po3J2itUULgnENrSRAEmKYiz3O63S7L5RLhHFpr6roGIA5DhHAgGrRWNI3h4OCAoqp48eIFabfH/fv...
[ "the number of times the plots were burned each year", "the number of unwanted grasses" ]
null
0
math
grade-1
which-table-is-correct
true
true
Josh admired the toys at the local toy store:He wanted to figure out how many of each toy there were, so he made a table of the toys he saw. Which is his table?
"iVBORw0KGgoAAAANSUhEUgAAAOAAAACWCAYAAADHVoQ9AAAmCklEQVR4nO3deXRc9X338fesd1bNaGa075IlS5ZsyzZeIIDZAgYDYQlt0tAQSpqUbOcUyOlpT1t4/urT/WlyaM5JAn3SkgOhQEII1BhiNhOM90WyLdmSRvvMaPZ97jLz/CFi4gfCYssa2f69/hlLM/fq9xvP5/7u/O733qt75JFHSgiCUBZGgIcffrjc7RCEi5K+3A0QhIuZCKAglJEIoCCUkQigIJSRCKAglJEIoCCUkQigIJSRCKAglJEIoCCUkQigIJSRCKAglJE...
null
[ "iVBORw0KGgoAAAANSUhEUgAAAhcAAACdCAYAAAAHbVrfAABLt0lEQVR4nO3deXhb1Zn48a92y5Ised/32HF2Zw8hkBBCAiShYS20tEDTlqWlfdrCzLSUAp0ynbYM/U33oUBnWhgoDZSUpg0BsqeQfXUWJ943Sba1WttddH9/GEwzCU0AJ7KT83mePIqv7r1675V99ercc96jAzQEQUgJTdNwS3AiCmEVFPHXKAjCKGTUgcMANemQbwYdIrkQhJRxJzR2hFIdhSAIwvCZnQHGVAchCBez49HBx0IzjLUNZv6CIAijTViFYxHokaA...
0
math
kindergarten
count-money-pennies-and-nickels
false
true
How much money is there?
"iVBORw0KGgoAAAANSUhEUgAAAQsAAABECAYAAACWLBBfAAA2gklEQVR4nO29d3ic13Wv+351egMGvQMECIAk2ECxiZKoLlOSFUWy4ziucSy3o5xrO/E5iY+S+NxrJ7lO4qI4Opbt2HJRs+WrYkoiRUqiSLE3sIIkeq+D6eVr948hJqJJKSBF2ZE47/PwEQkB8+39w5o1e6+19tqCZVkWefLkyfOfIP6+B5AnT553B3lnkSdPnjmRdxZ58uSZE3lnkSdPnjkh/y4fZpomhmFgGAbpdJqZmRlM0ySRSBCPx4lGozgcDoLBIF6vF0mSsNl...
[ "15¢", "11¢", "16¢" ]
null
2
math
kindergarten
times-of-everyday-events
true
false
Scott is running errands during his lunch break. What time is it? Choose the more likely time.
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAHQAAABzCAYAAABJnyafAAANAUlEQVR4nO2deWxUxx3Hv/Pe7nov2+v7xMYYwpUAcROMSgiUECpFRakaqpZQaBPS5qpUKQE1jVADOZpGgh6qmqRREzUHpEdAIkmDClFMQ5O0JOFwAuYwGJsYr+9zD6/3vekfi3f32ft29x1rr5/n84/nvZnfb2bf1zPvvZk3M4RSSt0BoNELDApAkIIxhTARIJMH5tiBIgtA3MOUHhuY7GIx9KA2CzBd8IYOSizAXEdIbcbUYVAAznmAtgBw3gtwA8FQBBNzapL...
1
math
grade-8
identify-linear-and-nonlinear-functions-tables
false
true
The table shows a function. Is the function linear or nonlinear?
"iVBORw0KGgoAAAANSUhEUgAAAFQAAABeCAYAAAC98DOnAAAIN0lEQVR4nO2cbUjT/RrHv5u3kqgYpUtbmjprLlFxb+zJh0QMjgmRnkpWZqagSFGIvcgHSgrUBSo9rCLD4QNxn8JJJd5HSFMSXxhplFlZs0yW8wFTay6bv/Pi4Ejmub3dLu/y8PuAL7ym1/fnh/0f2P/yh98f/MFWAitlnUJwSOFCieFCieFCieFCieFCieFCiSET+uHDBxw7dgyBgYEICgrC8ePHMTIyQtXeakwmEy5evAhfX1/cunXL4vXp6WkolUqEh4cjICAA0dH...
[ "linear", "nonlinear" ]
null
1
math
grade-4
multiply-fractions-by-whole-numbers-using-models
true
false
Which model represents the product 2× 1 2 ?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAANwAAACOCAYAAABaHGZ9AAAD80lEQVR4nO3dsWpbZxjH4Vd2ErCctARMQ6d2aQvJWsgYLxl7CYXG9xCyqjfiBNIraMmURVozegikaYI1NaGGgB2LJLU4HYTbDkG08ue/wXqeRToIXn2clx+Cs6jXdV336kPVb5Oqg2nVUVdAIxd6VVdWq77qV127VNV79b7rnuyf9bHg/Lv5SdWF55PZxeeXqr5Zn9UItHEwrXp2WPX7h6pfJ1Ur+0ezD8QG7V1ZnbVVVfV2WrUy/dcHQHvHbf3ZVa2c7VFguQg...
0
math
grade-4
angles-of-90-180-270-and-360-degrees
false
true
What fraction of a turn is this angle?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAAUCAYAAAC3ZkrjAAADpElEQVR4nO3dT0ibZwDH8V/KLm03N7BiPWguCrWgtM5bk1zbZJ5WXCFZYe2gOhnrdmpjdlx1O3XKiKGwMXARqu1NE3dN0pvJSoRaSC+vg9rWDpJG0+O7Q0xGK7rM5Q+++X6Oz8P78ktOv/fleZ7XZpqmKQAAAABVcaTRAQAAAAAroWADAAAAVVRRwV6Mrcjrv610xqh1HtRAOmPI67+tpXiy0VEAAAAs7529JrL5gkILywpHYlp/9lKS1PLuMYUCI3ULh+oIzi9rKZ7...
[ "1 full turn", "1/4", "3/4", "1/2" ]
null
3
math
kindergarten
cones
true
false
Which shape is a cone?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAXTklEQVR4nO2dW3ATV5rH/7YuLbmFdTFIwpYRgcXN1hA8U/aA2arAQAKpSgK7D2EfwsA8zZKX3aqhJm9boUjt26Z2piovUJWX4ZKX8DBjQrYqS2AwVYPjMTNjzNTQZiAWCEct0KVtXbp1sfeh3W3JlmODu9Xd0vlVUcHtTuug8+vT3/n6XFrm5ubmYgXg7zlgpgyU5kAgGA5rC7DOAmxrAwJ2oCUmzs2NTOtdLAJh9exuB6wPctIPG+0AQ0tWEwhGY6YMsFnguwI...
1
math
kindergarten
represent-numbers-with-shapes-up-to-3
true
false
Which group has 2 stars?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAF+0lEQVR4nO3cP0yUdxzH8c9zB3jAc9ahac+NAVpHddGlxpGaNGGyjqRdmLRjEx3b1LWJ7rLZoYlpE9pZlsahMqI4uHFNOxBBisDxdLjSIt4dxz3P8Tyf371fixL0+H193t7v/vwgSpIkqW9LLzal9Ya0mwgonKFIqpalqTHpwxEpqr9Jkiev8l4W0L1Lp6Whlc3mB2dHpI/Hm1UDRbPekJ69lla3peebUunVbvMTRIsiq5abjUrSRkMqNQ58Aiiy/UZ3EqmU71K...
0
math
kindergarten
compare-two-groups-of-coins-pennies-through-dimes
true
false
Which is more?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAh8AAACYCAYAAABEd4uYAABaWUlEQVR4nO3dd5zdZ33g+8+vnt6m9xlNH/Xe5Q623DHYQBJIwiYhIVwSkpu9e7MJWdh7w+69uRsCbDYvIAk49GLA3ZblIhf1XkfSzGh6nzOnn/Or948jTXACQbKl8TjzvPlDMpLm/L7n+T4z3/NUyXVdd8yAi1lI2WC5CIIgCIIgXDeqBCEF2vxQqYM0VnDdA8l3+rEEQRAEQVgMNoVBvZAt/ke1Dh2BYmUiCIIgCIJwvaRs6M7AqAHnsyAnreIfiMJDEARBEIQ...
1
math
grade-3
select-fractions-equivalent-to-whole-numbers-using-models
false
true
Count the equal parts. What fraction does this picture show?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAACgCAYAAAA2PRuAAAAcU0lEQVR4nO3dX2xc1YHH8V+AZGM5jsepGhQn3dhGqiMCO9PEbCptUCYBHrZdYqOSdrVFtSNBC32J84AoWi04Wa22C5Vi9oF/YpXJKnRRC4ud0D8SkExEKpXGCeNtQHEl7KFNjMi28eAkMmsXvA+XO9eT2PGM77lz/30/UkUVEs8p99vDOfffLJqenp4WAAAAACOu83sAAAAAQJSwwAYAAAAMYoENAAAAGMQCGwAAADCIBTYAAABgEAtsAAAAwCAW2AAAAIBBLLABAAA...
[ "4/16", "16/4", "16/16", "4/4" ]
null
1
math
pre-k
fewer-and-more-compare-by-counting
true
false
Which group has fewer?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAALpElEQVR4nO3dTWxU5R7H8d+cMjQtY2taCmopaqWXCuKCCBR5iVauwYUrgxJlZwBvXFTjjuS6UxaGRBcaFFfKhqCJLzEYBUwEAgIG5Vqktpa3wi30RSnD1DKdOXcxqbdBG1roPP/zzHw/m7FBmT/PnO85hzPmnFgYhmH3NakjJV3JSMOhAOTJlJh0W4nUUC7NnCrFuofC8PCA9VhA8VlSIU1pT+V+uHOqNHdark4A+XElI7Vdlf57TfolJQUDw7lfID4g/24rybU...
0
math
calculus
describe-linear-and-exponential-growth-and-decay
false
true
How does h(t) change over the interval from t=7 to t=9?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAABwfUlEQVR4nO3de2BUZYIm/KduuVaFhCQkIZAActEAQUBEEFocbLW12xG6e7F7WkHpi7a36fl2Znt7Z3tnel2/3m9aXS+o7Q4C9sxOT7uNzghGGgWBDi2RCIEEhRggV3KppKpyqurUOafqnO+PWDEVbik4b6oqeX7/aIqcp96ckzr11Ju3TlkMwzBARERERESmsCZ6AEREREREYwkLNhERERGRiViwiYiIiIhMxIJNRDHuvvtuvPnmmxf8t48++gg33XQTNE0DAPzLv/w...
[ "h(t) increases by 2", "h(t) increases by a factor of 2", "h(t) increases by 1", "h(t) increases by 100%" ]
null
0
math
pre-k
represent-numbers-with-pictures-up-to-3
true
false
Which shows 3?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAPiklEQVR4nO3dW2ycZ17H8e/zzvkcn2Indk7bZFPatBV026JdAS1sKy0VByG0ILiD6+UGIXFTaS8QV1yUW4S4WAlWgFZIsCsOC1SqkFbd7YqmJE3THJyD7djxjA8zHs/5fbgYJ3UcO57Edv+e+Pe5SNrMOwc/83zfed933vE4772fbcLVVah0oO0RkT0SdZCLwJk0jMbBzTa8/3HZ+mGJHDyv5SF6ZbX7P0ficDbTrVNE9kalA5ercKcJn61CUG53L1B8InsvF+m...
1
science
grade-6
match-chemical-formulas-to-ball-and-stick-models
false
true
Select the chemical formula for this molecule.
"iVBORw0KGgoAAAANSUhEUgAAAcUAAAFeCAYAAAD0YAQEAACA9klEQVR4nO29d5wcxZn//6nu2bzaXa1yWiEJCYUVQoEgkkwGB4KNbQyc7bOBO9sYMD6nOxv8tc/ZhxPGvjMO4B9ngw2HCbbJYEwyyjmHXaWVdqXNaaarfn90V09NTVXPzOZdPW9ey8x0V1dXj6b6089TTz3FhBACBEEQBEHAGewGEARBEMRQgUSRIAiCIAJIFAmCIAgigESRIAiCIAJIFAmCIAgigESRIAiCIAJIFAmCIAgigESRIAiCIAJIFAmCIAgigESRIAiCIAJ...
[ "CH2Cl4", "CCl4", "Cl5", "C4Cl" ]
null
1
science
grade-2
identify-plants-and-animals
true
false
Select the plant.
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAK8AAADeCAYAAABL7FARAAEAAElEQVR4nOz9V6wsW37n+X3DZURmRnq/c3t//Dn3nnN9VbEMTbNYZLPZZPc01D2YFkYjoYXBCANJkCBAbzKQBOlBAgYjtDBqtKYNm6abrGIVTZlb159zj3fbm9y509vIDG/0QAjzUg8E7ssI4O8psBCPn/hjxYr/WiHcn0TRThJSEn+bv81/L2MEsDeHlgs5GT7I/vW4+Ldw/zb/fU9Kgp3kX1/Pgv9uXPxbuH+b/3/I/8+pF/13Y/IvuvFHH/6fUBIm08kAP9Q...
0
math
kindergarten
one-more-and-one-less-with-pictures-up-to-10
true
true
Count the cookies in this group. Which group has one less than the group you counted?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAA0FElEQVR4nO3dZ5Rc533n+e8NVbdy6K7u6uqA7kYkAIIBYCYlSpRFyyIdaMuWZNmaWUmW7WN71yvbM+Od2fV4PTPn7Hote47tcRJleawZyUGUbFGyLZISSYkSE8CIDHRAh+pYOde999kX1RHdDTSIBghS/885PCCqbn7w4nef+j/PoymlFEIIIYQQQogtob/ZFyCEEEIIIcTbiQRsIYQQQgghtpAEbCGEEEIIIbaQBGwhhBBCCCG2kARsIYQQQgghtpAEbCGEEEIIIba...
null
[ "iVBORw0KGgoAAAANSUhEUgAABCEAAAB+CAYAAAAa5QvPAABobElEQVR4nO39d5wc13nge/8qdFd17p7pyTOYgAwwA8yUSFHJEinblGVFW96raK/te730eoPv3vV6vbvvfR1k33fXQTYlS7Z8JQdRskRJlkRSIkWKCQAjMjABk2PnXFXn/aMnAjPAIA1A6vl+PvqA06G6qk6f1jnPOec5GqAQQgghhBBCXBJKKSaqcKIIORccaW0LIX5CmRpEDNgahBZ//TENCUIIIYQQQghxyUxUFM9nr/RZCCHE1eXWKDT7wbzSJyKEEEIIIcQ...
1
science
grade-4
read-a-thermometer
false
true
Select the temperature shown by this thermometer.
"iVBORw0KGgoAAAANSUhEUgAAATAAAATFCAYAAAAnnIr+AAEAAElEQVR4nOydd3hT1f/HXzdJ0zTdu7Rllb3K3ntvB6AgoOLeW8G9t+LWL4r+FEVZIoiyZO8NZY9CKaO00L3SNGlyfn+EhqZN27SUET2v5+lze+8943PW+37OOTeJclgUCSQSicQNUV1rAyQSiaS6SAGTSCRuixQwiUTitkgBk0gkbosUMIlE4rZIAZNIJG6LFDCJROK2SAGTSCRuixQwiUTitkgBk0gkbosUMIlE4rZIAZNIJG6LFDCJROK2SAGTSCRuixQwiUTitkg...
[ "74°F", "90°F", "83°F", "73°F" ]
null
2
engineer
grade-7
identify-the-experimental-question
false
true
Identify the question that Akira's experiment can best answer. The passage below describes an experiment. Read the passage and then follow the instructions below. Akira glued lids onto 16 cardboard shoe boxes of equal size. She painted eight of the boxes black and eight of the boxes white. Akira made a small hole in th...
"iVBORw0KGgoAAAANSUhEUgAAAUwAAAEICAYAAAA0p80lAACZuElEQVR4nO39Z6wt13keAD9rZnbv5fRze2cTi0WJEiXLcmxJLrJjWXLiIC6IihNLggEBQYD8yAf/SYAARuIIMJDkQ2IggZtsU7ZE+ZMl2ZYRkZRIiRLJS/L20+7p5+zepn0/Zr9rv7PO7LP35T2XvPdwHmBjt6lr1nrW25f47d/+bRchQoQIcQ/h937v996S8xoA8MUvfvEtOXmIECFC3Co++9nPvmXn1t6yM4cIESLEPYaQMEOECBFiTISEGSJEiBBjIiTMECFChBg...
[ "Do the temperatures inside boxes depend on the sizes of the boxes?", "Do the insides of white boxes get hotter than the insides of black boxes when the boxes are left in the sun?" ]
null
1
science
grade-4
compare-temperatures-on-thermometers
true
false
Select the thermometer that shows the highest temperature.
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAJkAAAFICAYAAABDSVyEAABA00lEQVR4nO2de5gU1Zn/v9XDjKAyPRAVFGaG/KLZLDMMZjcJt5E8yUaJAu5mg0RwzcXbCuI1IHjNRqMRJCoX8RLRjSAo6JpERLwkuwpySfLsytyym81vA8P4i5tsoGe4yHXq90d3VZ86dS7vqT5V1bi8zzPPme4+9a33nDrnU+97uqracV3X/eAw8NsDwN5jwFEXJ+yElWR9HKB/BXDOycCgKsD54JDr/qInbbdO2EfVRlUDff7zQP7FmVXAn52SH4En7ISVYnu...
1
math
pre-k
flat-and-solid-shapes
false
true
Is this shape flat or solid?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAACnCAYAAAArOCs4AAADhklEQVR4nO3asQ3CQBBFQYzcAyXQFYELI6DRpQUHzzJYM/EGP3w63TIzcwMAABL3swcAAMCVCGwAAAgJbAAACAlsAAAICWwAAAgJbAAACAlsAAAICWwAAAgJbAAACK27Lz/bgTOAn/B6n70AAP6eF2wAAAgJbAAACAlsAAAICWwAAAgJbAAACAlsAAAICWwAAAgJbAAACAlsAAAICWwAAAgJbAAACAlsAAAICWwAAAgJbAAACAlsAAAICWwAAAgJbAAACAlsAAAICWw...
[ "solid", "flat" ]
null
1
math
kindergarten
represent-numbers-up-to-10
true
false
Which group has 5 hexagons?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAO1UlEQVR4nO3dTUhc5xrA8WdOxjEYLR253jtilcFJE7JwpVDBTXEzLhKIxisEV+oqgQuBJKuu7yoRsqork5Wb4Be3Qp2NmyKEVlcuQlNnGBRxbr04oVqpH5m5iyFFjDFaznne95zz/23aUjjvSx79Z87MnHMi5XK5XDgQWd0T2XknclQWAHBFNCJSd0nkyxqRf8REIoX9cvnH30xvC0DQffWZSPSXvcp/NMZErl+p1AgA3LDzTuTn30U2D0Te7Ik4vx1V/gexAeC...
1
math
pre-k
count-pictures-up-to-5
false
true
How many pinecones are there?
"iVBORw0KGgoAAAANSUhEUgAAAvgAAACbCAYAAAAX3e8+AABJP0lEQVR4nO3deXRc2X3Y+e97VYVase87QADEwn0nm0vvq7pb3q1uO7bGcct2kjO27NieOInV9hk7sWNJnlHiTKxMHDuOJHscyW7ZslrqlfsGYiMWEvuOAqpQWGpFVb07fxRYRBEFbt0i2eTvcw4PUe/dd9999dfv3frd39WUUgohhBBCCCHEQ8F8vwdwvyilaP3gu0wO9gGK+u37aNl3BE3TADAMA03Tkp+FEEIIIYT4JNAexRl8wzD4z//6l7h87sOU4/uffoUDz73...
[ "1", "5", "3", "4" ]
null
0
math
grade-8
identify-complementary-supplementary-vertical-adjacent-and-congruent-angles
false
true
Which angle is vertical to \angle{2}?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAEFCAYAAADZm5BpAAApqklEQVR4nO3df1Db933H8ZeIUoNHC2LtXNSmQLspoWnqZrhnb934UXZyA1txDjyyWPOPrWBuOxOc4MTkmjO0ORvH1MZ43WGTrpCRJSzobLKDxbrjJtOktXfmQpZ0xDQ3oGuwc5chJaOWkshof7hotuMf/JD46sfzcee7IvT9fl9K+scrH3/0eZuCwWBQCKuJiQllZ2cbHQMAAAAGSDI6QDwqLCyU1+s1OgYAAAAMQMEOM7fbrcnJSbW2thodBQAAAAYwsUUkvO666y6...
[ "\\angle{1}", "\\angle{6}", "\\angle{5}", "\\angle{4}" ]
null
2
math
pre-k
count-scattered-shapes-up-to-10
false
true
How many squares are there?
"iVBORw0KGgoAAAANSUhEUgAAAvgAAAFNCAYAAAB1zRu4AAAHaUlEQVR4nO3dsa2jUBRFUXtEFTRKiBy6UbfBpE7/t2cu2qxVwQk3V0/ifhzHcQMAABL+TA8AAAC+R+ADAECIwAcAgBCBDwAAIQIfAABCBD4AAIQIfAAACBH4AAAQIvABACBE4AMAQIjABwCAEIEPAAAhAh8AAEIEPgAAhCzTA67m+XhNT+DNtq/TEwAAvkrgQ5yPynPxUQnAv+aJDgAAhAh8AAAIEfgAABAi8AEAIETgAwBAiMAHAIAQgQ8AACECHwAAQgQ+AACECHw...
[ "8", "10", "6", "2" ]
null
0
science
grade-6
use-data-to-describe-climates
false
true
Which statement best describes the climate of Buenos Aires? Hint: Summers in the Southern Hemisphere occur in December, January, and February. Winters in the Southern Hemisphere occur in June, July, and August. Buenos Aires, Argentina, is a city in South America. It is located in the Southern Hemisphere. It has a humid...
"iVBORw0KGgoAAAANSUhEUgAAAtgAAALOCAYAAACTXGSDAAD/gUlEQVR4nOzdeXyU5bn/8c9s2feNELJAWBIgEMIWEnYRRBGQxYWqlerxp7a2tNXTxerpOdZ6ek6rp3XrasWtLigIBIILQliEsCWEQAJJCCSEJSH7Ouv9+yPMkJCAQSaZAa/362VLnnlmnmtmnpn5zj33olFKKYQQQgghhBBOoXV1AUIIIYQQQtxIvlUBOysrC41Gg0ajYezYsa4uR3wLrVy5Eo1Gw5gxY675tsLCwhzns/0/Pz8/EhMT+fWvf01DQ8O1F+zmevKaXr5...
[ "Winters have less precipitation and lower temperatures than summers on average.", "Winters have higher temperatures and more precipitation than summers on average.", "Summers have less precipitation and higher temperatures than winters on average." ]
null
0
math
grade-3
read-a-calendar
false
true
What date is 2 days after December 29?
"iVBORw0KGgoAAAANSUhEUgAAAvgAAAF2CAYAAAAbcOzWAABdCElEQVR4nO3de1yUdd7/8dcMJxEFBATPiqLiAVHJTJHYzFIzO5jrrm57d69Z2/He1n6WN22H3TLvstqydrPdDmYnzSxFzfDQgkJqHvF8QDREQFQE5XyY+f2BjCCogwIDF+/n49HDmOua4TMfrpl5z/f6XtdlslqtViqJTi/hh5MlHC+wICIiIiLXr7O7mTEBLtzV3sXRpUgzYKoc8KPTizmSb2VyRxdczCasV7qniIiIiFyVCSixWPnqRDHdW5q5u72ro0sSgzNX/uG...
[ "December 30", "December 31" ]
null
1
math
grade-8
identify-linear-and-nonlinear-functions-tables
false
true
The table shows a function. Is the function linear or nonlinear?
"iVBORw0KGgoAAAANSUhEUgAAAFQAAABeCAYAAAC98DOnAAAJAklEQVR4nO2ca0hUXRfH/zPmWFhZpqGZ93SmNMXpIlkijGZXoYuvJopUUmGJ5ZchMCoqIkuZymgULzlOVjzdFCnNyBC6CFlhF6k0L2iYZmJlqY3jfj88ODRPt3eOa/LxZf/AD2fNdq/Fb/bZZ+acxeCvazfYWGCs1CkGhxQulBgulBgulBgulBgulBgulBgyoQ8fPkRMTAz8/Pwgl8uxefNmvHjxgmp6MgYHB6FSqRAYGIjZs2dj3bp1qKmpIZufRGhjYyPi4uLg4eG...
[ "nonlinear", "linear" ]
null
0
math
grade-2
interpret-tally-charts
false
true
Jack cut some fruit to make pies. This tally chart shows how many of each type of fruit he cut. Did Jack cut more apples or bananas?
"iVBORw0KGgoAAAANSUhEUgAAAV4AAADWCAYAAACZv+obAABGc0lEQVR4nO2deXiTVfbHP0matklX2tIChS7IvhYYCuqgLYIoi7iCzIxSEMfRQQX9iSsKOrjgOCqCjKMi4zoCDoiA4wYVBQGVUqDYokBL2ZuWpm3SZn1/f4SmDU3SpEnT7X6eh8fmfe9yktZvznvuuffIblzdU0IgEAgEAUPe0gYIBAJBR0MIr0AgEAQYIbwCgUAQYITwCgQCQYARwisQCAQBRgivQCAQBBghvAKBQBBghPAKWgxlcFf+cUs+T009gDK4a0ubIxAEDCG...
[ "bananas ", "apples " ]
null
1
math
grade-3
identify-two-dimensional-shapes
false
true
What shape is this?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAADJCAYAAAAZxkUSAAANIUlEQVR4nO3dzW9UV5rA4bdcNsRAu8LgBb0ZjbKYFhskiJRoNv0ftDT/4ozlaQ3SNFGrk8WELKYVFrMJi14kswojbGw+YmTZgw2uumcWQMfQDtTHvXXrnPs8ElKBsevIouQfp957bi+llAIAAKjFUtsLAACAkghsAACokcAGAIAaCWwAAKiRwAYAgBoJbAAAqJHABgCAGglsAACokcAGAIAaLbe9API3TK9+nVQRoxRx8vr3wyqdenz676W/Pn7zea8ep1OPf/6ck5R...
[ "hexagon", "triangle" ]
null
0
science
grade-5
animal-adaptations-beaks-mouths-and-necks
true
true
Aardvarks eat insects such as ants and termites. These insects often live in holes called burrows. The aardvark's mouth is adapted to get insects out of burrows. Which animal's mouth is also adapted to get insects out of burrows?
"iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOy9ebxkRXn//66qs/V+19kZYAaGVVnEICAqohEIElkVUBFcooS4BUSSX/SrGFFxDaIiBgXFaFDWqGERJQLisElYZN9nX+7W3Wer5fdH3WkZthlghMT0+/W6r5nb93Sf6tN1qp+q+jyfRzjnnNYaay19+vTp06dPnz59+vT534mUkiAIEGVZun5w36dPnz59+vTp06fP/36klMh+cN+nT58+ffr06dOnz58H1lrkS92IPn369OnTp0+fPn36bDr6AX6fPn3...
null
[ "iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOydebxdVXn3v2vYw5nvnORmTiCEeZBRRQUcUBFFQQVnHGqp8yti3/bV+mrVltbaIlqrRVFxKI5otSJQQUAIBIiEIQlkIPO9ueMZ995reP/YNxcQNEFR2r7n+/nk88m9d5+z115nrXXWs57n+T3Ce++NMTjn6NKlS5cuXbp06dKly39PpJRorRFCPNVN6dLlfySyazh36dKlS5cuXbp06fLfH+ccxpinuhlduvyPRXYN5y5dunTp0qVLly5d/mfQ3dt...
1
math
kindergarten
times-of-everyday-events
true
false
Harper is eating lunch. What time is it? Choose the more likely time.
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAHQAAABzCAYAAABJnyafAAANkUlEQVR4nO2deXBTxx3Hv5Ktw5KQLGNZMlj4BBsD4QqXabiakBByzADpdKCkE2AaaEimEJIwLUmAMG3SIUzTJIUkpS0JITQEOiQ0QA4gA0kIFMxhG2PwibFlS9iydVqHX/8wfvLDOvyeVhKW32fG4923+/vtSl/tvvf27dsVUBRFGVzAdTtg8QIeCjz9iEQBMCgBGC4DtGJAYOigqDPtsa4WDwmmKIHEa/auSLoYyJd3qc3Tf7B4gas2oNEFVNgBYbunK4EXs38...
0
math
grade-4
nets-of-three-dimensional-figures
true
true
Which figure will this net make?
"iVBORw0KGgoAAAANSUhEUgAAAM0AAADNCAYAAAAbvPRpAAAEs0lEQVR4nO3dMW4UWRiF0dcjUlgAswBGFoSsg4TAsxYjBy1mLXbQCesgBFlmAfYCzAJ6IhtGLo+5qi7V+M45GaUO3h98/bra1Y/Nfr/fD+CX/bb2AuCpebb2Apaw2WzWXsJB+BDw31S307QEM0bXLE0qd5oxxnh7/mntJczy+fjd2kvgAXU7DSxNNBASDYREAyHRQEg0EBINhEQDIdFASDQQEg2ERAMh0UBINBASDYREAyHRQEg0EBINhEQDIdFASDQQEg2ERAMh0UB...
null
[ "iVBORw0KGgoAAAANSUhEUgAAAUkAAADNCAYAAAA13ILSAAAY40lEQVR4nO3deViU5d4H8O+wKouDgLsFKSiiictRO2aBubUZ6oHSFrHcOvkquKWG4sgrYoqKZnm0SLRMKBKXUioJOb0t6qEwBfGQLAUuCLEOsc/7BzBm4ZPIzDwzN9/PdXlxOdf0zO/X43y5n+W+H4VGo9GAiO6YQqGQuwQyIDO5CyAiMmYWchegD6L8pucgn0h+wo0kRQlIQKxeiEyVkCNJABgRc0TuEtrk7HRfuUsgIgg4kiQi0iWGJBGRBIYkEZEEhiQRkQS...
0
math
grade-8
apply-addition-and-subtraction-rules
false
true
The number line shows an unknown number, p. Is 1+p positive or negative?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGaklEQVR4nO3dX2hUVwLH8d+dydykyaSbUOKiRWuhLmtWTI1xTMSC9HHFwkj6IGWz0gdB8d1S6FNBEEphQaGCT1kMLi0jNKxd2D504kMzE6OYHQwtZfPvwSXZdKdt0szc+XP7kNzR1JhkdTJnbvL9QMKde/Pwg3sZfpyce47luq4rwMf6+vpkWZZOnTplOgoqhHsOAKhmNaYDAM9ramrKdARUGPccAFDN1l2wc7mchoeHlUgktG3bNkaOAGCDFB72qvDwr3IzE3LzaQX...
[ "positive", "negative" ]
null
0
math
pre-k
subtraction-sentences-up-to-10-which-model-matches
true
false
Which picture shows 3 − 2 = 1?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAARIAAABKCAYAAAB3ndsNAAAO60lEQVR4nO2d228c133HP2dm9kLuLrniUqQutCk5Mq3UVzG1LLlGmxpJU6N2ItiO41RwvAH60CKvRR/6UvSlT/0TWoByYRQBbNdIWqdGgMSoC5CWJUpO7Nq62KZE2aRIcUVyL9zZnZnTh+GSXO7ypr1S+H2AwWA4Z2bOV6P57pnfmfM7SmutpwtwNQdpFxyNIAjCplgKYibc3wn9QVDTttZnF1tdLUEQditPdIF1Jedv7A/CAxHfZQRBEDYj7cKlLEwV4HIOjEX...
1
math
pre-k
addition-sentences-up-to-10-which-model-matches
true
false
Which shows 4+2=6?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAXYAAABKCAYAAACvkX8HAAAM8UlEQVR4nO2dT4zc1n3HP4/kkPN3d6WVZf0JHMGxpLiOHMdKYcduDr0oRVGfjFyMwqegubgtBAQ5tTmkhyIokF6C1u2tPfTfMQ5SoKegbZDArRAkUuvqDwzViVZaSSvt7PznkHw9cEbaWY1mh7PkDOf19wEG+4fkIz8L7peP7z0+Kq21vuPDjTY0Qgg0giAIwhLhKKjZcLoMz7qg7vS0/nBn0YclCIIgpMFrK+Bcb8c/HHfhbCVOfUEQBGF5aIRwtQW3fbjWBms...
1
math
kindergarten
subtraction-sentences-up-to-5-what-does-the-model-show
false
true
Which subtraction sentence does the picture show?
"iVBORw0KGgoAAAANSUhEUgAAADIAAAAyCAYAAAAeP4ixAAAIEklEQVR4nO2a228U1x3HP7M7e7XX6wuBtamNubR2jV3bQGyTUEWVqraQcAkQVS1BIi997L9QVX3hrar6kMfyUN64hFBK2qjCVRXRWtiYrAkG4mCwY68Lu5i1vTu7czl9GO99xrtrhUJRv5Jlz5lzzvw+8zvn/M78jiUhhOAVkONFG/BN6f8gL5tsQe59+eC/aUdFWssm2arwzNnzXB8ZY+/ALk6dOPbcDKtG5Wwq8cjd+19xfWQMgOsjY5w5e/75W1lGGQgwbYrGnpb...
[ "3 − 1 = 2", "2 − 1 = 1", "1 − 1 = 0", "2 − 2 = 0" ]
null
2
science
grade-3
identify-rocks-using-properties
true
false
Select the one substance that is not a rock.
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAANcAAAEGCAYAAAD2aACLAACClklEQVR4nOz9eawt6Vnfj37eoYY17Xmf+fQ82e52u21sxoCJmYTBv0TxTbgRkERAiJJIN6BICTeKgkQkkIIlFOKIREKASJSflBAu1zIJBJJrBYeAjd14drd77jPuea+pqt7p/vFWrb32dM7pc87ubnfW92idWnutWrVqVb3P+zzP9xle8amdEB7tQE8xwwwz3Ab6Dr46hCsVLGr4toX4upwJ1gwz3Bl6Ch7txOcDt/e6nAnWDDPcORo5MmHvNfnGnMoMM7z1MRO...
0
math
kindergarten
count-scattered-shapes-up-to-10
false
true
How many squares are there?
"iVBORw0KGgoAAAANSUhEUgAAAvgAAAGUCAYAAABA/FZfAAAJDUlEQVR4nO3dwYnbABRF0SSoD5UncEECl6dKnE0WGhgSMjZ86845e8NbXj6S9fPxeDx+AAAACb+mBwAAAK8j8AEAIETgAwBAiMAHAIAQgQ8AACECHwAAQgQ+AACECHwAAAgR+AAAECLwAQAgROADAECIwAcAgBCBDwAAIQIfAABClukBXNf9uE1P4GRb9+kJAMAbcMEHAIAQgQ8AACECHwAAQgQ+AACECHwAAAgR+AAAECLwAQAgROADAECIwAcAgBCBDwAAIQIfAAB...
[ "10", "1", "8", "3" ]
null
0
science
grade-4
animal-adaptations-beaks-mouths-and-necks
true
true
Ringed teals eat invertebrates and plants that live near water. The shape of the ringed teal's beak is adapted to filter through mud for food. The ringed teal gathers muddy water in its beak and then pushes it out through gaps along the sides. Bits of food, such as plant roots, are left behind inside the teal's beak. W...
"iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOydedxVVdn+v/e91j7nAeRBBURRcABRFCfSnBLFISWNnIe0QUttstQcq7cyLS3HVyVn0xx+mWYWlolDOSGiiOQsKuCQiqIy85y917p/f6x9DjwyPRBm+p7r83k+cM7ZZ+219157n3vd67qvS8zMiqIgxkgTTTTRRBNNNNFEE0008fGEquK9R/I8t2Zw30QTTTTRRBNNNNFEEx9/qCraDO6baKKJJppoookmmmjik4EYI/pRd6KJJppoookmmmiiiSaaWHF...
null
[ "iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9d7ytd1Xn/15rfZ+9zw2S0AISIUAIPRQjDEqTgJRIETCgFAug6IiMwFAddUAUcCj6ogwdaTIgiGAYGUJxpIYSQwQsICUgA4KNQJJ79vNda/3+WN+9b24KuUmuBPjtD6/z4p5z9tn7Kd/nybPW+hTJzOy9ExFsscUWW2yxxRZbbLHFFt+dUFVaa4jIpb0pW2zxPQndFs5bbLHFFltsscUWW2zx3Y+IoPd+aW/GFlt8z0K3hfMWW2yxxRZbbLHFFlt...
1
math
grade-7
similar-and-congruent-figures
false
true
Are these shapes congruent?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAEbCAYAAADgR/OCAABfO0lEQVR4nO3deViUZdvH8S8zbAKKIqikqCwCoqDmmgruuaC5L1m95dNiZZmmuea+pJZmZdlmZbsrLqiZO7iipoKigAKuoCiKAbIO7x8DKLkAOnDPcn6Ow8Nm5p6Z37wvD55z3td9XmZ5eXl5CCGEEEIIIXRCpXQAIYQQQgghjIkU2EIIIYQQQuiQFNhCCCGEEELokBTYQgghSuXq1asMGzYMFxcXnJyc8PHx4aefflI6lhBC6A1zpQMIIYQwLEOHDqVZs2bExMRgbW3...
[ "yes", "no" ]
null
0
technology
grade
logo
false
true
This is (part of) a (former) logo of which computer related brand?
"iVBORw0KGgoAAAANSUhEUgAAAV4AAAC1CAYAAAAX35fvAAASNUlEQVR4nO3deWwc130H8O+bndl7lzdFkeIhUpSo07Jl0ZEsyVYSB2nRAKmRtmmBOnVdGwHqBk3TBk6bxkETNwjS1A5Sp2nlpHUDGGiDNgbcAj7qOD4qWZJp2aJMiRJviRRvLvc+5/WPpWzZIsXZJfeRXH4/gAD9MSP88N6b787Mat9PdJzuAhERqaOtdAFEROsNg5eISDF9pQtYb6LRqDwzNoNuvQQhwwMjk0J1KojbXSaaNlSLla6PitfY5KTsCKYxZC9FQnfAl4q...
[ "Microsoft", "Elgato", "Intel", "Cisco" ]
null
3
math
calculus
determine-continuity-using-graphs
false
true
Is f(x) continuous at x= – 1?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB3HklEQVR4nO3deXRU550m/qf2Kq2lDUkIJLHKFkgCgcBsBge8xNiOwQvY2ZxOp8eZpNPJme6ZPj09OdPdHp/MdKfzSzpxpzOT9tJZ3KaNjQ0IjM1qySAQIJDAIAvQgtBSUlWp1rvUvb8/ZCnIgJHgvpRKej7n+CQq1X305d66t7711nvvNem6roOIiIiIiAxhjncBREREREQTCRtsIiIiIiIDscEmIiIiIjIQG2wiGmHv3r0oLi7G+vXrAQCPPvoo3nrrres+V1EU3HP...
[ "yes", "no" ]
null
0
math
algebra-1
perimeter-and-area-changes-in-scale
false
true
Look at this parallelogram: If both dimensions are doubled, then which of the following statements about its perimeter will be true?
"iVBORw0KGgoAAAANSUhEUgAAABoAAAAOCAYAAAAxDQxDAAACNElEQVR4nL2UsUtqcRzFTxEoeL1CKF7hSqCB2GAIOiWBl0gjh9yEQMStaHDTP0BwE1psuCBtLm7OuYmDiDdpUHToUuAggTdECJLzhngPAote9N4ZD9/D+X74/fiukST+gzb+dUEikcDJyQnWAWA0GuHo6AiiKEKSJFxcXODl5eVHC9cBIJlMIhQKYTKZoNVqod1uo1Qq/WzRcrnEYDDA4eEhLBYLvF4vFEWBrusrA5eXl4hEIu+8bDaLfD4PANB1HfF4HIIgwO/3o9/...
[ "The ratio of the new perimeter to the old perimeter will be 2:1.", "The ratio of the new perimeter to the old perimeter will be 3:1.", "The ratio of the new perimeter to the old perimeter will be 4:1.", "The ratio of the new perimeter to the old perimeter will be 1:2." ]
null
0
math
grade-4
compare-decimals-using-models
false
true
Compare 0.7 and 0.82. Use the models to help. 0.7 ?0.82
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAC0CAYAAACuelsNAAALcklEQVR4nO3dbWiVBR/H8b82b6xcTDCzshdDDKPEF9Vqkj1ZLbOgJEvQlSiVMErQxJKCDCIxDxE4KChUDj1Sg0rFXlgsiNNmRQvBEOwJxRChVa5E090vpHGbD3XW353dx88HerHj9duuY9eLL9euzSG9vb29AQAApBha6RMAAIBqIrABACCRwAYAgEQCGwAAEglsAABIJLABACCRwAYAgEQCGwAAEglsAABIVPNvxqWGlqzzoEo0drZW5Ou6FvmrSl2LAOAONgAAJPp...
[ ">", "<", "=" ]
null
1
math
grade-4
parallel-sides-in-quadrilaterals
false
true
How many pairs of opposite sides are parallel?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAml0lEQVR4nO3deXxU5cH28WuGZICQQIBgWCRhT1gMsqioRREVEIm4oSIodbf2abV1Qe379mnfWtei9bGPS21VVERQWWQVC1WxShUIAQKEPQECgWBCEgIMycz7h3onsSpLZs59Zub3/eu65wNzLvWfy/nMmeMJBoNBAQAAAAgJr+0CAAAAQDRhYAMAAAAhxMAGAAAAQoiBDQAAAIQQAxsAAAAIIQY2AAAAEEIMbAAAACCEYm5gT/jwEZ0x/VZVHK2yXQUAAABRyBMrD5r...
[ "1 pair", "2 pairs", "no pairs" ]
null
1
math
grade-3
fractions-of-a-group-denominators-2-3-4-6-8
false
true
What fraction of the shapes are triangles?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAACUCAYAAACp1l47AAAGDklEQVR4nO3dvWuVdxjH4TupKUFtWrE2URqJJpNF2oAUqjjXU3ASPLujg3+JW12tsx26itCOcdWQoVNAEZJorJqTVONbnw41UnwhJ+Y+eV5yXZAlw8OPHwfy4eGbpK8oiiIAAIAU/WUfAAAAmkRgAwBAIoENAACJBDYAACTakfmw85cXYvrOs8xHbsrk2GBcOjdc9jHe4Z664566454AoFpS32BX6Yd8RMTN26tlH+G93FN33FN33BMAVEvqG+w1J44e6MVjN2RqZq7...
[ "1/8", "1/2", "1/6", "5/6" ]
null
0
math
precalculus
outliers-in-scatter-plots
true
false
The two scatter plots below show the same data set. Choose the scatter plot in which the outlier is highlighted.
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAU4AAAFGCAYAAAAFAHYEAAAxtElEQVR4nO3df1xUdb4/8NfMyDAIDEID3LQBNgdd2MgShEjcMncn+3X3kVlRN90N283oam49aus+7CvXuras5XfTNPW7u9zaeynNtK299uu2KbuEMKyrqVAB6wDpBoOD4ACH4cf5/kGMzC908JyZA7ye93EXznsOcz5D+vJzzvmcz0cliqL4jROo7wbODQD9IoiIaIQpKiBaA6ROBRK1gOqbXlGs6gx1s4iIxoccPTClrnto43ItMDtyKFWJiOi8cwPAl13AP5z...
1
science
grade-3
identify-plants-and-animals
true
false
Select the animal.
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAADZNklEQVR4nOz9Z6xsW57Yh/123rUrx5PTzS+Hfh2mw/QMhz0ccigGESRtwRJgypYFwaRsy/ZH27D8yTD8yTYMGCBpUxQEUqJEUZwZhhnOcLp7Or1+/eJ9N58cKqedw/KHXXVOnTp17r2vuw3IABdQqKodVviv//qvf17SjwdC3M1CXuHflH9T/ntZRjE8sOEkgLIK3yyl1+V/g7j/pvz3veQVuJtNf4/ji+vyv0Hcf1P+/6FM8TQUF9fURQ/+5//gdxBCIEnSpeu...
0
math
grade-2
place-value-models-up-to-hundreds
true
false
Which place-value model shows 204?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAPYAAACSCAYAAAB2dzeEAAAZeElEQVR4nO2de4xk6XmXn3O/V1Vfpmdvs+tddu21HRzZQgkEE6RggiVszMVREoKCCXKwIBYoJOtIEEOCZUWJRZBCokBwAAGKLSIusVHIHxBBZAXbiAg5Ym/2zmV7p2f6VpdTdU6dWx3+ONXdVd1VNePsmZ6eM+8jfZqerq/f81bV+X3X9z2fUpZleSuFr0cQFpCXCILwgKErEGjwnAuXTVBuJWX5lcH9dksQhLr49hbor0bVfx414W1epXpBEB4swgJeHsFOCq9...
1
math
grade-7
bases-of-three-dimensional-figures
false
true
Look at this figure: What is the shape of its base?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAADPCAYAAADPn6YPAABPbklEQVR4nO29Z7xkZ3XlvfZ+zqmqzrdzUquVUEISAoSEhBBKSCAjEMEEEz2AwYAxJnsQ43dsjGFgLOwhD8HGgAVDGJtoQCAQWCBQQgnl1FJ3q6M69723zvN+2E+qurdbErp9Q8/663e7qk4+p76s2lp7bfHeexBCCCGEEELGBJ3oCyCEEEIIIWR/4v8JgX3ZJRfj9CfNx3OeunSiL4UQQgghhOznVBN9Afuab3zilXj+G74AADhgcWeCr4YQQgghhOzv7PcV7F/ekn9...
[ "rectangle", "circle", "nonagon", "heptagon" ]
null
1
science
grade-7
identify-rocks-and-minerals
false
true
Basalt has the following properties: solid not a pure substance not made by living things found in nature no fixed crystal structure fine-grained texture Is basalt a mineral or a rock?
"iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAACZGElEQVR4nOz9aZNl2XUdCK47v3vvmwf393wMjzEzIjKRSQwJMAmIZBElVVtRKraMVZK1NX9Ft/Vv6Lb+BdIHdbXM2qys6lPLqqtEcRAEkAAI5ICcYnKP8PnN433DnW9/OHdvvx6ZjAwyBxA0P2YBREZ4vPHsc/Zea+21pSRJElytq3W1PnPJv+4XcLWu1j/kdRUgV+tqvWBdBcjVulovWFcBcrWu1gvWVYBcrav1gnUVIFfrar1gXQXI1bpaL1hXAXK1rtYL1lWAXK2...
[ "mineral", "rock" ]
null
1
science
grade-2
compare-properties-of-objects
false
true
Which property do these two objects have in common? Select the better answer.
"iVBORw0KGgoAAAANSUhEUgAAAWwAAADcCAYAAABUIpt4AADx+ElEQVR4nOz9d5gk53XeDf8qdk4zPTlsTtjFBmARiUiBAjPFLImWSElWtCWbeiXLQZZshde2gj/JtizRokSKSowCCBEkAYIgiLjYAOxic96dPNMznbsr1/P+UV01PbMLEvhMhaX2XBfCTPdUV1c/fZ5T97nv+0hCCAFgmiazs7PU63Vc1+V6XI9/6FBVlWw2y9DQEPF4/O/0ta6v/+vxjy2utv4lIYQwDIPz58+zZs0a4vE4mqb9A5/q9bge4DgOpmly6dIlNm3a9He...
[ "rough", "blue" ]
null
0
math
grade-8
apply-addition-and-subtraction-rules
false
true
The number line shows two unknown numbers, a and b. Is a+b positive or negative?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAInklEQVR4nO3da2xT9x3G8ec4sZ04CZCRCwgIKRIDRYhwCeZSOtF1Uy8IqUkpGuuUwSaxwhigaRKrqqmbhJCoVsoq0MaEVMbUDHVrQGPd1lZbCVQjFwKEpgQ2NZhbuSQw0lwcx0nOXjh2iCAXhuOT43w/r5zj8+LRseU8+eV//jZM0zQF2FhJSYkMw9Dq1autjoIY4TUHAIxkiVYHAB7VlStXrI6AGOM1BwCMZEMu2MFgUNXV1aqoqFBWVhaTIwBAXLkbaNavav6oo9d...
[ "positive", "negative" ]
null
0
math
pre-k
subtraction-sentences-up-to-10-which-model-matches
true
false
Which picture shows 8 − 7 = 1?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAdoAAABKCAYAAAAc9ZVYAAAQGUlEQVR4nO3deYyc9X3H8ffzzLG73su7rNdXfNTFB4chhrJ0k7Q0ESgF4RQa5yhGsC1Ng2Kq0v7REkUKQo1okjZRKFISqa26pHJbKKYGEuwWUo5Q1kewwWB8rPERG7z4Wnvv3dl5nv7xzD3P3M+zx/Tzkqw5n9/z++zX0ve5Zsawbdvum4AjIzAYhUkbERERKVPQgMYArJwD88Ng9I3b9q6B6Z6WiIhI9bmxCYK9I86DhWFYXe90YRERESnPYBQODcPpCTg8Aub...
3
science
grade-8
use-punnett-squares-to-calculate-probabilities-of-offspring-types
false
true
This passage describes the myotonia congenita trait in goats: Myotonia congenita is a condition that causes temporary muscle stiffness. When goats with myotonia congenita attempt to run from a resting position, their leg muscles often stiffen, causing them to fall over. Because of this behavior, these goats are referre...
"iVBORw0KGgoAAAANSUhEUgAAAvgAAAD6CAYAAADUdTPBAAAc3ElEQVR4nO3da2yUV37H8d/M2OPBHhuDuRhjbILNHVIgkIBZE4hhs2qi3W3IwkqbpNBSNYq0q+62qlSlyjYbNZGqbl+00r6qtk3IJgK2SUBsd2m4JDgQ2BioG29EaGpjMDbmYsCX8cx4Ln0xFw9rbM+M7RnPme/nTfwwZ+Y85gjpN//8z3kswWAwKAAAAABGsKb7BgAAAACMHwI+AAAAYBACPgAAAGAQAj4AAABgEAI+AAAAYBACPgAAAGAQAj4AAABgEAI+AAAAYBA...
[ "2/4", "0/4", "1/4", "4/4" ]
null
1
math
grade-1
compare-clocks
false
true
The clocks show two things Patty did Thursday after lunch: Which did Patty do earlier?
"iVBORw0KGgoAAAANSUhEUgAAAk8AAACiCAYAAABYgikbAAA7fElEQVR4nO3deVxU9f4/8NeZHWaGRWFABQHBFQRNveUCaiouabmmVmqb5tW831zzXiuzPdNu/bLUn9/7u6bVvd1yqSyXUhPUW5kpKLkBKqjAYLIMA7Mw8/79MTE6DcvMADOg7+fj4UPmrO8ZzvvD+8z5nM8RiIjA3EY/Xwadugo6XwTr+SIg74avQ2rVhG7htn9dwiH0joAQp/F1SKwV4rxsWpyXjNVO4OLJTSWVqH7la1DaBadZViKYiQDBB3G1RgRIBQEi4Q8fWIA...
[ "watched a movie", "played soccer" ]
null
1
math
kindergarten
one-less-with-pictures-up-to-5
true
true
Count the balloons in this group. Which group has one less than the group you counted?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAAVrklEQVR4nO3deXCc933f8ffz7GJ3sYvF4tgFCOLgDfCQRFGiTlOHbUlp7MpurEzstIk6E3dST5vpESc94k7i1pk2TTL5Mx0343FipY7jqMrESu3ECnVYtHWYlESZBwBeInGR2MWx2Pt6fv1jwQMiaR5YYHexn9cMSeDBw32+y4d/fH6//T6/n2WMMYiIiIiISEXY1S5ARERERGQtUcAWEREREakgBWwRERERkQpSwBYRERERqSAFbBERERGRClLAFhERERGpIAVsERE...
null
[ "iVBORw0KGgoAAAANSUhEUgAAA1YAAAB+CAYAAAAnS4CtAAAg/UlEQVR4nO3deXCc933f8ffz7IldLBbHLkAQB8UL4KGLInWaOixLcmpbdi2nSZxDTZNO4sZpm7NpjibO0TSTpJl2ptPW8bhx7ZyOrSSiayeWddiSLZEmJVEiKQC8ROIigcWx2Pt6fv3j4QUepigcC+x+XjPkAg8X+3yXD3bm93l+lwUYRERERERkURhjOFOEY1lIVaCs1nbN8VoQ8cDmEHT43WMWClYiIiIiIovmTMGwb67aVchyubsJ2v3grXYhIiIiIiK15Gj...
0
math
grade-4
parallel-sides-in-quadrilaterals
false
true
How many pairs of opposite sides are parallel?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAABICAYAAADMKoJvAAALIElEQVR4nO3d+3NU9R3G8edsNptNsiHJkuyG1DowkZF6A7Wi4G0QGQZ1oLWitFAKQgwKpDP9R+qAXAIIDlIGi6VKK8igoFAVlCqWKigoyCXmAhtCbstmd09/IHvOMlWCsNmzu3m/fuJzJjv78MNhnny/h/M1TNM0BQAAACAlXE4HAAAAAHIJBRsAAABIIQo2AAAAkEIUbAAAACCFKNgAAABAClGwAQAAgBSiYAMAAAAp5L6aH9r+j3Y1no6osNAY6DxA1gr3mLptdJH...
[ "no pairs", "2 pairs", "1 pair" ]
null
1
math
grade-6
understanding-percents-strip-models
true
false
Which model shows 66 2 3 %?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAU8AAABLCAYAAADwKwVQAAACHElEQVR4nO3XMU4bURSG0Tu2oSCQdERZQJIl0LrNPrIMSpbBPmhdswNC+hBKGyxBsF6KEVESheb3KLalcyqPRvN0pSd9uu5aa+3mserrsmqxqnpqBcBfJl3V0bjq/UHV2/2q7uahtcv5pscC2B0nr6sm18v+4d1+1cdXfVkB+NNiVXV1X/XtserLsmo0f+pfCCfAy47GfSerqu5WVaPVby8AeNlzJ3+0qtFmRwHYTeIJEBBPgIB4AgTEEyAgngAB8QQITNb5eHZ...
0
science
grade-2
compare-properties-of-objects
false
true
Which property do these two objects have in common? Select the better answer.
"iVBORw0KGgoAAAANSUhEUgAAAWwAAADcCAYAAABUIpt4AAB5sElEQVR4nO39d5wkV33vjb9Phc7dk9PO7OzOZsXVapUQCEmILESw4YIx8gVjA/dxwuY+tvHlgcfcH/YFG8vcxxHbF3ACY4zBNggLBAghoRxXWm0Oszs59nSscM7vj1PV0zM7u9rZ3Umrer9eNd3TXamrqz/1re/5BqGUUgCVSoXBwUHy+Tye5xERsdJYlkUul6Orq4tEIrGk24rO/4jVxkLnv1BKqXK5zKFDh9iwYQOJRALbtld4VyMiwHVdKpUKR48eZevWrUsm2tH...
[ "sticky", "hard" ]
null
0
math
grade-1
compare-clocks
false
true
The clocks show when some friends got the newspaper Thursday morning: Who got the newspaper later?
"iVBORw0KGgoAAAANSUhEUgAAAt4AAACiCAYAAAB268rMAAAuTElEQVR4nO3deXhU5d3/8fc5s2VPQAihGggkqMgmuFWCC1VBLFrF7aotVrtSfdo+de3PuuHWKmj7VK16tU8fBGm1laK4AS4oIBUoJQEiiglbVJIBgTDZZjJzzu+PyEBMIJlk5kwCn9d15TI558w53xnz5f7mPve5b8O2bRuJWXjfGsKBMiL1nxCp+wSrsTLZIfVorvQTcWecgCv9eFwZI3GlDU52SNIDKS/jS3kpIhJfhgrv2NjhPdRX/JamPctb7bMsm1CThYGZhMh...
[ "Luke", "Jenny" ]
null
1
math
algebra-1
linear-functions-over-unit-intervals
false
true
How does g(x) change over the interval from x=2 to x=3?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAABupklEQVR4nO39e1hb550vfH+FJECcMdiAscFxfAonx05w4lN8wHbSJM2OnXacydND+qadnU7P197T3Wumu9ee7uxMnnea9mkmye7unjZJ5+o73c1TJzO1gx0b8KG48YHYgMBxCLY5moNACJ3XWlrr/UMIQwy2BOu2JPh+/vGF0Ppxey1p6atbP93LoGmaBiIiIiIi0kVCtAdARERERDSXMGATEREREemIAZuIiIiISEcM2EQUtg8++AAPPvggZFme8vd/+MMf8NnPfvY...
[ "g(x) increases by 3", "g(x) increases by 200%", "g(x) decreases by 3", "g(x) decreases by a factor of 3" ]
null
0
math
grade-5
mean-find-the-missing-number
false
true
Wendy has the following data: If the mean is 60, which number could n be?
"iVBORw0KGgoAAAANSUhEUgAAAVoAAAAkCAYAAADIDvJzAAAH1ElEQVR4nO3deVCU9x3H8fc+u4Aup1yCgoJ4IBpMNR40otHYJl6NpkOqRsfR0Sa2ZmKaOm2SHjY6Go8xmaYxjLax2naM5kCjRkfE1GiMaIyI1gJWQVCHUyGKsOfTP4gLqxjcsA+7y3xfM8wwv/09y2c+O3z32X2YRaeqqgpgVc002m5jV22AihBCiO9Dh6LT00VvxKDzb1pRVVU12eox2Rs8HE4IITqXAMVIgN6IYlMtMmSFEEIDJvttrKoFxWS77eksQgjRaZltt1F...
[ "55", "46" ]
null
0
math
grade-1
find-the-next-shape-in-a-growing-pattern
true
true
What shape comes next?
"iVBORw0KGgoAAAANSUhEUgAAAvgAAADhCAYAAAC9ZMGZAAAZr0lEQVR4nO3db4wc9X3H8c/M7s7u7a3v7KOYM3+cULtN47gNIEIa/oSWNCklFZGSSM2DSm1FKiVVnjRtn7SJqjY8TqU+SUtJWmgRIUmVwAOKIKUhuJAmEJyK/9gFjLkcPvt85/uztzs7M32wnH2H78/O7s7Mb37zfklIcLczv9/3951Bn52bnXWiKIoEAAAAwApu1hMAAAAAMDwEfAAAAMAiBHwAAADAIgR8AAAAwCIEfAAAAMAiBHwAAADAIgR8AAAAwCIEfAAAAMA...
null
[ "iVBORw0KGgoAAAANSUhEUgAAAz4AAADhCAYAAAAJS2C/AAAd90lEQVR4nO3db5Ac9Z3f8U/3zPTMzo52pSWIFQJsTiR3Jyt34MLcHWA78cU+Yqdw5c5VuQdJJSlfqs6pexIn9yCJXanEfnypuidcFHBiLhTGdsqGB44KOAKHDjlYGC4FWDIoBiGWRaud/TszO93T3XkwWmlX2j/Ts/3n1z3vV5Wr0O72r7/f369nPJ/pnh4rDMNQAAAAAArBsqysSzCSnXUBAAAAAJA0gg8AAACAwiP4AAAAACg8gg8AAACAwiP4AAAAACg8gg8...
0
math
grade-4
properties-of-three-dimensional-figures
true
false
Kirk made a 3-dimensional figure that had a round base. Which figure could Kirk have made?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAMwAAABSCAYAAAAYTjvBAAASG0lEQVR4nO3de1iU1b7A8e+gUtwc9ATCo26YvMTJFHCbiHe31lYxES+At4BSdo9bZDi61c62gK2Gly2XQk2iAE0fUQswi9AwtKMopUwmzwHpKIrGRVNGQEFEzh/TvIlcZIYZsFqffxzmXe96fzPOb9611rvWO7KGhoaG0nvw4x2orIf7DQiC8IuuMrDqAgPMoZcpyEprGxpybnd2WILw5HPrDl0L72j+sDeF5yw02SQIgkZlPRRUQ8k9uHAHTG7f12wQySIITVl...
3
science
grade-4
identify-magnets-that-attract-or-repel
false
true
Two magnets are placed as shown. Will these magnets attract or repel each other?
"iVBORw0KGgoAAAANSUhEUgAAAb4AAAA0CAYAAAD10V3jAAAFf0lEQVR4nO3dW2wUVRzH8d/Mzm5LL+mNchFigrYGEi6lKA23KIpoTSpqiBCjIdFXIwnhATUEDSJRHwzik/qikcQHbsZEomCDUBIwWEqkokWCjdpYpHIR2u52dsaHbUBMaHd32pmU8/08bZqZ7C/7b/Lr6Z6za5Xt7/P7PCFEV79bpLjvRh3DLBtPRp1g7Ng8J+oERnEVU3HDEUlW1FGMYdN54bN9P+oIBuI1zw6vU9h8yxKlFy476gAAAISJ4gMAGIXiAwAYheIDABi...
[ "repel", "attract" ]
null
0
science
grade-3
natural-resources
true
false
Which of these pictures shows a natural resource?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAV4AAAElCAYAAACszooYAAEAAElEQVR4nOz965ck63Xeif32e4nIrEv36T64AwRAAhQpkiJnmUu0NWvWssdetv9mfbO9PJYtDSVeJM5QIkWQIAEcnGt3V1VmxHvZ/rD3G5HVpxrnkBh9QwB1qqsyKzMy4n335dnPfrb8u1eqv3UNt5FfHb86fnX86vjV8b/h8abBX97DT1d4keB/eM9+H35ldH91/Or41fGr47/NcRvht67t33dt/334ldH91fGr41fHr47/dsewsUX336Wnnvj/+bd/jqoiIvT...
0
math
pre-k
fewer-and-more-compare-by-matching
true
false
Which group has fewer?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAOAAAABeCAYAAAA67RjkAAAFFUlEQVR4nO3dv08bZxzH8Y+xsV3zw6RqTDsEWEgYiMhARQcGpHaIgioidakyRZ3654VWRMmAlEhUKhEDEgsJHRBLwa0ExuDagHUdrk5I+ZGz7zl/z+b9WiLHPOfnc+hznI/zQ8LzPG/3RPqjIpXr0pknABFJJaSBpDSek4bTUmK35nlvDq2nBdw8M4NSaqviP/gqLd3r89sJIBrluvT2WPrzRHpXkXoOz/wnKB8QvYGk3zVJOqpLPfVzTwCIXqNrp57UYzsV4Ga...
0
math
kindergarten
one-more-with-pictures-up-to-10
true
true
Count the triangles in this group. Which group has one more than the group you counted?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAABeCAYAAAAZpWPpAAAEIklEQVR4nO3dv24UVxjG4QNXQMv9xleBKxepUvgKHCmJUtBBSlI5RHJFByzY46FCsr7FNuv9Zub8eZ52tTOnfHX0k+bZPM9zAQAAUjzf+gAAANATAxsAABIZ2AAAkMjABgCARAY2AAAkMrABACCRgQ0AAIkMbAAASGRgAwBAomEG9quLXXn/4XbrYwAA0LkhBvaby5ty9ueunJx/LNOtL8MDALCc7gf29TSXk/NP5XYu5e3lVH79+8vWRwIAoGPdD+zTi135/04acvr...
null
[ "iVBORw0KGgoAAAANSUhEUgAAA04AAAB2CAYAAAD/YcPcAAAHUElEQVR4nO3dv2+V1x3H8e/FhiFp2q1Vhw6R0mbKkCX5B8NfAUuR2qUdULq7UtJGClvYUmeyEtVVqwwQjDG+PB0uRuRc4Pji53nOj+f1Wjwg7CPucj46b+RVRAwBAACMYhiGOD6L+O4k4uE64txtu0n7q4j39iJ+/07Eb25ErMJwAgCA0Rw/GeLeg9KnYEyf/jJiv/QhAACgJ4cnm6+/vRHx4bubVwva83Ad8e2jiH+fRfzrJOJa6QMBAEBPHpxvvhpNbXtvb/M...
2
math
kindergarten
represent-numbers-with-shapes-up-to-3
true
false
Which group has 1 hexagon?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAHK0lEQVR4nO3dvU8bSRiA8ddmYzkh5oSFAAMuXFxO9EZp3LkBCgoQ8DcCgoICaNy5CvQo5CQXfNhEyEg4IMe3sFeQnCzzYS/y7Mzre35dRLTvKHow9s6SiQVBENRaIn/fiTTuRfxAAOd4MZHUkMifH0QmEiKx2s8g+HJje1lA7z6PiHjf7h7/kEmI/DX8WDXgmsa9yNdbkWpL5OROJH7jP36BaOGy1NBjoyIiP+5F4vdtXwBc9rvRfwKRuN2lAG9DuFCJcKES4UI...
1
math
grade-7
rational-numbers-find-the-sign
false
true
The number line shows an unknown number, d. Is d positive or negative?
"iVBORw0KGgoAAAANSUhEUgAAAlwAAAApCAYAAADgbPfrAAAGUElEQVR4nO3dz28TZwLG8Wcc/CN2aBposqUVJO2hoogWQYJJEKq4Iw7JwgGtSjlRgpA48g+wrNgDVSU4ROKU1UZw2HDgslfDSrWdODRqSla7UvNrq7YxJESx4x/j2Htw7BIIsVM6mYz5fi7WjEfREzmOHr/v63eMQqFQEOBgAwMDMgxDZ86csTsKNgmvOQCn2WZ3AOB1zczM2B0Bm4zXHIDTVF24TNNULBZTJBJRS0sLnyyB3yAzZWr+n4tKT2WVmTLl/9grd/M27ex...
[ "positive", "negative" ]
null
0
math
grade-3
correct-amount-of-change
false
true
You pay $1.61 to buy a magazine costing $1.57. You receive the following change:Is this the correct amount of change?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAABECAYAAAC76EIUAAAdPElEQVR4nO3deXBV9f3/8ee5+5LcexOyXUIWIAmEJRFIREG0CCqLVrSidloddTqttY61023Gts7UP+o47dfaamsHW1ttFZeOVqjIXgSUJex7gCQ3G9lucpO7b+ee3x9Mzhdq9IsQtL/6fvwDc+/NOZ97/nrd97w/74+iaZqGEEIIIYQQYlQYPu8FCCGEEEII8d9EArYQQgghhBCjSAK2EEIIIYQQo0gCthBCCCGEEKPI9FneLJPJoKoqqqqSSCQYHBwkk8kQjUaJRCK...
[ "yes", "no" ]
null
1
math
grade-3
read-a-thermometer
false
true
What is the temperature?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAZOUlEQVR4nO3dQWhkd34n8K8cn9pzqb5MkgkZKMXQp7ibKod4Dj5VGabxKUYFznpPMaUx2cMavJTW3oGBWWdVbMCHwdgq9uiNoYXDHowHrHfyxSHWw5rsIQ1OF0yIs5nLFISxF5ZktIfueq5qSW61+rXqyfl8QND1f6/q/fr25c/v/f5rh4eHhwEAAGrxaF0/dPPmzXzwwQf56KOPcnBwkH/4h3+orv3O7/xOrl69mqeffjrXr1/PlStX6nosAAA0ylodO9hvv/12JpN...
[ "45°F", "40°F", "50°F", "30°F" ]
null
1
math
grade-2
place-value-models-up-to-hundreds
true
false
Which place-value model shows 672?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAWoAAACUCAYAAAC6N2M+AAAbVklEQVR4nO3de4ylZ33Y8e/zPO973nO/zOzMrtdem8XYCGxqAwVDjBMQpYGQTUiDSAtWVEqbf5oSUiGlUlVFDRJtpRap/aOVUNsoaZs6WHEBY0IwN4NJg4uNiVoS373X2Z3bud/ea/94z+w5Z+acM8vM7Mw7s7+PNFpb8+zvfebs7u8857n8HhVFUXTZhRc70AzAjxBCCHGALAUFA3dk4XgK1OV+FD3VOOhuCSGEmOS+IlgvdOL/uSkFr8/FWVwIIcTBaQbwXBu...
1
math
pre-k
more
true
false
Which group has more?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAOAAAABeCAYAAAA67RjkAAACDElEQVR4nO3VS2pVQRiF0X1uHmBMFEEUB+ADHEBGIXacpR3RWTgAIca+EcVGXpiYS9k4BGyK5rLBu1bnnKKg+KvxUdMYYxxdJp/Ok5NlcjUCrMjmlOxtJI93kofbyXR0Mcb74/ZYsH727ySbh+fz4tF28vT2XCewGifL5OAs+XyZfDxPFsdX84b4YPX2NubWkuR0mSyWv20Aq3fd2s+RLLqjwHoTIBQJEIoECEUChCIBQpEAoUiAUCRAKBIgFAkQigQIRQKEIgF...
1
math
grade-2
skip-counting-stories
false
true
Each branch has 2 leaves. How many leaves are on 6 branches?
"iVBORw0KGgoAAAANSUhEUgAAAVcAAADgCAYAAAC3iSVhAAAmrElEQVR4nO3dd3xN9x/H8deJSIjIJjFCkAghjRl71larZq1WUWoFtfsTVI0WJUaVqhoNra21EiNGjGqtKoqIEErMGFkkub8/IpfbxEhyjyPX5/l45PGQc+4995Prk3e+93vOvV9FF3lfhxBvuOD+kwFoNG+MxpUI8XLB/SdjpnURQghhil5LuEYn6ij2VzLlTyUTnSgDZfHmk54VWZXlcN0QrWPCvy9uwN0PISJBx/FYHT0uSqMKbUnPitchS+E6+HIybc4nM/6qjiW...
[ "6", "10", "8", "12" ]
null
3
math
grade-1
time-and-clocks-word-problems
true
false
Tara went on a tour of an old, historic mansion. The tour started at 10:00 and lasted for 1 hour. What time was it when Tara finished touring the mansion?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAAd8UlEQVR4nO2de3hTVbrwfztJ07RJ2lAobQVpgUZQbqUq1GEo4AgCHY93ceZTqTAzXigKOmcUwe/oOQLONzMOFxlHDu2Ad4qgjLYjMKOlDFJReuGihVBIuSVtaQkkadM0yf7+iAlNbzSXtlz6ex6estfe65L97rX2u9d61/sKoiiKRjscrQezExwivVxFyARQS0EbCXFyEIyNorj3Qk83q5fuYHwUyHT17oMEOQxTup+GXq4ezE44bAWDHY7Ug+SCw32iV9hXJ2q...
3
math
grade-3
match-clocks-and-times
false
true
What time does the clock show?
"iVBORw0KGgoAAAANSUhEUgAAAvgAAAEJCAYAAADhBFPCAABSkElEQVR4nO3de3RU5bk/8O/ee265zOTGPUHuQkIVxJbEG3qqoT1iXf0Zeo5Ieyxe29Xjia6CnLMUuwS6uhT6E9TfqWiB9tSiPYKnpxUvRNuaFkm0RcAyAZUAZiKGQC47t7ns2fv3xyRDhsxlz2Tu+X7WcpGZefee1ySz8ux3P+/zCJqmaSAiIiIioqwgpnoCREREREQUPwzwiYiIiIiyCAN8IiIiIqIswgCfiIiIiCiLMMAnIiIiIsoihlRPgNKAVwO8GrTBf/1fCwI...
[ "ten forty", "seven fifty-five", "ten thirty" ]
null
0
technology
grade
parts
false
true
What kind of computer component do you see here?
"iVBORw0KGgoAAAANSUhEUgAAAV4AAAEsCAYAAACLwdvQAAEAAElEQVR4nOz9eZxdx3Xfi36r9nTm0316HtBozAQIzhRHUbMoyZLHOHHs2E5iP9uZ7rs39o3vc+LYse99yfvEzn1xEttRPM+WbMuyJEskRYojSIIgSMxooLvR83jmec91/zjdYKPZEwBSlGOsz+d8zj5n71qrdu21f7Vq1apVIggdxU2QCLwtz4dhuOV5Ddk6UOqtb6VQK7+3K+8HzZ1VdDPygquHakXuqmyl1LbyEf41Zdcfb8UbQHk+Qoi32K079n3/2uvX8dCF2vD...
[ "Optical Disc Drive", "Processor (CPU)", "Hard Disk Drive", "BIOS Chip" ]
null
1
math
grade-5
nets-of-three-dimensional-figures
true
true
Which figure will this net make?
"iVBORw0KGgoAAAANSUhEUgAAAKIAAADNCAYAAAA7UKuUAAALNUlEQVR4nO3dMWwTaRrG8SenjSkuiQci7WqXJiAFJdLlbEC7mzRg63I0l8KWrrqCGRdXAavQkVwRp4HtAqdQbeExxVYreZCSZknkCVuQYwUMlyIIpMDeLqw4KZuRQxNTcEWYOTsJSezYnndmnp9EY4H9Rv7zOR7PN2579+7dOxB57HdeD0AENChE27ZhGAba2tqa9kfXddi23YhxSaC2g74027aNZDIJy7IaNNKHxeNxFItFKIrS9Mei1jpQiJUR9h1RkB8ZRtehSCP...
null
[ "iVBORw0KGgoAAAANSUhEUgAAAR4AAADNCAYAAABuFB/jAAAdfElEQVR4nO3deXRUVbr38W8gA5CpmAWkCZGEMCaASvKqECSiKNgJgnZrt1VpvN2ycAheURG7Ca8uUN8rIAu5rYCp0A4gQwoZRAg3BQ0SQKDCmEFCkEmGkCKBQMZ6/whVt5gzVJ1Tw/NZi8VqJGc/oVZ+vc85ez/bx2KxWBBCZT4+PmqXIBTUTO0ChBDexyHBYzabMRgM+Pj4OO2XXq/HbDY7olwhhMp8mnqrZTabGTZsGCaTyUEl3V5MTAxZWVloNBqnjyWUJbd...
1
science
grade-6
predict-heat-flow-and-temperature-changes
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
[ "iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAXsklEQVR4nO3daXAkZ30G8KeP6bkv3fdq72VhfWAXxieGYIwLsKkQ27hCUfGHJJBAUpUiIcGkUhAMRVIkQCgckjjmTOxyCLYXbAw2XvCxi218ENt4LWlX1+jW3Pf0kQ89Gp27O0aj7h7p+X3Z1Uyr9Upv99Pd/37facEwDGOmDAzngYwGqAaIiBpCFoCgBOz3AZ0KIMyUDOPptN3NIqLt7pIQIA/lzS+6FeCg30wjIqJGyGjAyRwwXQZeywNiWjXfYNgQUaMFJTN...
2
math
grade-2
select-figures-with-a-given-area
true
false
Which shape has an area of 10 square units? The shapes are made of unit squares.
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAKQAAAD+CAYAAAC0oK7QAAAEh0lEQVR4nO3dsY5d5RmG0e9MBjqKSLagBiGi0KLQmBp6Ki6GBq7EjXML6VJYSQQ9kaNI1IDtyhW2xaawj+Q+M2c/+89alUcu/ikefZrq3ae///Ji++fTlzMzc5ptZk4Dl7PNNqeZbebeneu5/tfTl28kKEYu7fSqutPMP56+nOvzTfzTO1fz2d235s7bouRynjzf5uHjF/Po2W+zzczVOT8xsoc7b5/ms7tvvfphm7l68z9gD+f2Tqc3goQCQZIiSFIESYogSRE...
0
math
pre-k
fewer-and-more-compare-by-counting
true
false
Which group has fewer?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAALRElEQVR4nO3d24tV5R/H8c9WM3LU0ikPmIk1qQhSXahhBzxUXnXZwSSoqwLTSKj+gyAIK8S7yJuKyLpJKrI8XKhUZoaCNTZ5aLLGPGSjY+lPZ/0unuan/Mzce6+19udZPu8XyFZkPc/3w57P3sOaPWvVsizLes5IXaekE+eks5kAlGRITRoxWLp1mDR2qFTrOZ1lX/W6xwLSM3ukNOSHU+Ef44dKU9tCOwGU48Q5qbNP+vWMtOeUNKj3bPgPygeUb8Tg0DVJOnl...
1
math
grade-5
compare-fractions-and-mixed-numbers
false
true
Which sign makes the statement true? 1 4 1 2
"iVBORw0KGgoAAAANSUhEUgAAAtgAAACWCAYAAADkHv8wAAAJNUlEQVR4nO3dQWicZRrA8ScxZoJoBJvAdpsidHqosQfTvYxoi4gbimKxxYIoIjQHaaWHHhYWRLS3BU+uWFRoT3oyLqK0LFkF9dBmlTi7CIFQx0NNsZroISJ2ijJ7kHTbbVq7yZN8+TK/3ynJNxkeyHf45+Wd9+totVqtKLkbb7wxXnjhhXj22WeLHmVFNZvNmJycjOnp6ZiZmYm5ubmIiOjt7Y3+/v6oVqtRrVajUqkUPOnKatf7AQBYHbqKHoD/X7PZjHq9HvV6PZr...
[ "=", ">", "<" ]
null
2
math
grade-6
quadrants
true
true
Which shape is in Quadrant IV?
"iVBORw0KGgoAAAANSUhEUgAAAfkAAAH8CAYAAADSe9ZXAAA6YklEQVR4nO3de3BT94H28Uey8EUGG4MB22CcG5DEcUiAEC4xDSXMkpAlV94Mk7TJJNt36UyHvN1MZ7Jst9PNNGw6O2kTmma37HZCd5ttJww0LYUsgSRgTAkxBDDXBdIajLGxjW+yZUmWdN4/qFwcbCwbHx2d4+9nptPoSDrn8Q/pPDoXHbkMwzAEAAAcx211AAAAYA5KHgAAh6LkAQBwKEoeAACHouQB6Fe/+pX27NnTfTscDusHP/iB/H6/hakAXC9KHnC49evXa/3...
null
[ "iVBORw0KGgoAAAANSUhEUgAAApcAAAH8CAYAAACEt4SVAAA/wElEQVR4nO3df3RU9YH//9dMhoRMICEQIAmE+AtQY0SBIr9CZZGz+GPxJx8PR9t6dPtd+z09+O16eo7rdnu6fitrv3tslVq7dbdHulu3XTlgKwUXQYUQRAwIhJ8CtuFHSEhCfkySycxkZu73jziRkIRM4N65c4fn45weOzcz7/vyOpl55X1/uQzDMAQAAFKOy+WyOwKuQm67AwAAACB1UC4BAABgGsolAAAATEO5BAAAgGkolwD0u9/9Tjt27Oh5HA6H9eMf/1h...
0
math
algebra-2
linear-functions-over-unit-intervals
false
true
How does h(x) change over the interval from x= – 9 to x= – 8?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAABv8UlEQVR4nO3deXgU54Eu+rd3tdbWAhIWlgBjcMASWELsGLEYe4ztGOwEJzfJOOPMjDNZJrlzkpObmckzyfEQPydxcuLYTsYzGdvJzbme+HiLwQKzQ0QsgQwCCYxBgJAQWlpqtXqtpavuH60WEms31KdWo/f3PPyhRvXqU1V39dufvq426bqug4iIiIiIDGFO9gCIiIiIiG4lLNhERERERAZiwSYiIiIiMhALNhGNsHbtWrzxxhtX/L8PP/wQCxcuhKIoV/z/N998Ew8...
[ "h(x) decreases by 1", "h(x) decreases by a factor of 6", "h(x) increases by 1", "h(x) decreases by 6" ]
null
0
math
kindergarten
identify-pictures-with-symmetry
true
false
Which picture has symmetry?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAjVUlEQVR4nO2deVwV5f7HP3M2OCwii5rmvu8KVwTc7ZqVZYtl3W6Leb3dWyn5U0u7lSaWZSGG5c1rWop7t6xu3LxmJmrsB1DAXQkwFRRBQJazzvz+OB7EBTgzZ+Y8M4fn/Xr5QmDmeT7MeT7zfJ/n+c4zDMdxXKkZOFsHXLMBVg4UCkUiNAzgrwb6+AAddABTauK4zGrSsiiU1kdEG0Bzps7+TUcd0M/X7k4KhSIN12zAqVqgxAycrgNU1Vb7L6j5KBTp8VfbvQY...
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.
"iVBORw0KGgoAAAANSUhEUgAAAg4AAACBCAYAAACowjIdAAArjklEQVR4nO3dd3hUVfoH8O+dmUxJJj0hhUBCKpAgkASkKl1BUEBBBaWqwAqKC+66K4+6a1lQF2FdfzRFmoDL4rI0wQUMYqEkhhZIIZBQ0kibZCaZybTfH9lkE0i5k5w7dyZ5P8/DoyGTc94J7zn3veeeuZezWq1WEEIIIYTwIBE7AEIIIYQ4Dyoc7OD8+fPgOK7RH7lcjp49e+KNN96AVqu1qb2nnnoKY8aMaVMsly5dQs+ePeHl5dWmnyeEsOMoc8OVK1fw+OOPw9/...
[ "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
0
math
pre-k
name-the-shape
false
true
What shape is this?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAD1CAYAAABqfoLEAAAFBElEQVR4nO3YsQ2DUBAFQWO5ADdJVTTpDo4SIFjrS2gmvuCFq9tmZl4AAEDivXoAAAA8icAGAICQwAYAgJDABgCAkMAGAICQwAYAgJDABgCAkMAGAICQwAYAgNDn7uFx/P44A7iy79/VEwCAG3ywAQAgJLABACAksAEAICSwAQAgJLABACAksAEAICSwAQAgJLABACAksAEAICSwAQAgJLABACAksAEAICSwAQAgJLABACAksAEAICSwAQAgJLABACAksAEAICSwAQA...
[ "square", "circle" ]
null
0
science
grade-4
read-a-thermometer
false
true
Select the temperature shown by this thermometer.
"iVBORw0KGgoAAAANSUhEUgAAAdsAAASLCAYAAADdzBdkAAEAAElEQVR4nOzddXwUR//A8c9pkot7iCARNITgUFyL1qBAKW2pu1N56u76e9o+9UJLC6VYqeDu7g4hxN1zuZz+/jhyJMSBI9B+369XX+XuZmdmd2f3uzM7u1HYbDYbQgghhHAaZVNXQAghhPink2ArhBBCOJkEWyGEEMLJJNgKIYQQTibBVgghhHAyCbZCCCGEk0mwFUIIIZxMgq0QQgjhZBJshRBCCCeTYCuEEEI4mfoIlqaugxBCCPGPJj1bIYQQwskk2AohhBBOJsF...
[ "60°F", "67°F", "19°F" ]
null
1
science
grade-4
compare-properties-of-objects
false
true
Which property do these three objects have in common? Select the best answer.
"iVBORw0KGgoAAAANSUhEUgAAAvgAAADQCAYAAAByQhWRAACktElEQVR4nOydd5xcdbn/36dNn9lesqkkofcqeAURBVERFXu5Xr027A1FrNeK3Wv56VXsDcGOVBUEBEIvoaX3sn2nl1N/fzxnMptkd7NJdrMp3/frNdnZmdNmcvacz/f5Ps/n0YIgCACq1Spbt24ln8/jui4KxUxjmiaZTIZZs2YRi8WmdV/q/Ffsb6jzX3Eosy/Pf4XiYEQLgiCoVCqsXr2a+fPnE4vFsCxrpo9LocBxHKrVKuvWrePwww+ftou8Ov8V+yPq/Fccyuy...
[ "stretchy", "hard", "yellow" ]
null
2