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This magic trick is based on how computers detect and correct data errors.

This activity helps students learn how computers "compress" text by identifying repeating patterns of letters, words, and phrases.

This activity shows learners how computers use numbers to represent pictures. A grid is used to represent the pixels (short for picture elements) of a computer screen.

In this activity, learners find the answer to the question, "if you have a pile of 8 cards, and you remove half, then half again, how many times can you do this until you get to just one card?" This w