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Data in computers is stored and transmitted as a series of zeros and ones. Learners explore how to represent numbers using just these two symbols, through a binary system of cards.

In this activity (page 12), learners apply the concepts of pixilation and pointillism to the world of biomedical science.

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.

In this activity about encryption, learners cut out a secret decoder badge from a handout and use it to encode messages to each other.