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In this math lesson, learners participate in a variety of activities that give them experience in recognizing, describing, and extending repeating and arithmetic patterns.

$5 - $10 per group Ages 6 - 8 1 to 2 hours
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In this math lesson, learners use slices of bread and geoboards to explore several ways to divide a rectangle in half. Learners also identify equivalent fractions that represent one-half.

$5 - $10 per group Ages 6 - 11 1 to 2 hours
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In this number puzzle/trick, learner #1 thinks of a number between 1 and 63. Learner #2 shows learner #1 six cards and asks them whether the cards contain their number.

1 cent - $1 per group Ages 14 - 18 5 to 10 minutes
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In this math activity (Page 17 of the Play Ball! PDF), learners play a game of "baseball" and analyze the results of the game.

1 cent - $1 per group Ages 8 - 14 30 to 45 minutes
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In this math lesson, learners apply the concepts of ratios and percentages to the distribution of letters contained in a box of Alphabits® cereal.

$1 - $5 per group Ages 11 - 14 45 to 60 minutes
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In this math lesson, learners compare products to determine the best product.

$5 - $10 per group Ages 8 - 11 45 to 60 minutes
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In this math lesson, learners count and compare amounts of money less than or equal to one dollar.

$5 - $10 per group Ages 6 - 8 1 to 2 hours
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In this activity, learners calculate the number of milliliters of water a nearby tree transpires per day.

$1 - $5 per group Ages 14 - 18 4 to 24 hours
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In this interdisciplinary activity, learners create a Space Weather Action Center (SWAC) to monitor solar storms and develop real SWAC news reports.

Over $20 per group Ages 8 - 14 4 to 24 hours