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In this activity, learners develop an understanding of cylinders and volume as they compare two sizes of popcorn buckets.

In this activity, learners use Starburst® candy to sort, classify, compare, and graph. Learners grab a handful of one-inch candy squares, sort them by color, graph the candy, and discuss the results.

In this online interactive, learners use fossils to infer temperatures 55 million years ago, at the sites where the fossils were found.

Learners explore their surroundings while reasoning about categories and counting.

Even fast computers are limited to how quickly they can solve problems. One way to speed things up is to use several computers at once.