A set of cards, called "Mind Reading Cards" (or "Age Cards") are used to determine a person's age. The first number on each card is a power of 2. For example, 1, 2, 4, 8, or 16, etc., and there is only one power of 2 on each card. An age is on a card if and only if it requires the power of 2 on the card. Powers of 2 are used to form binary numbers that are used in computers. Following the class demonstrations in this video, there are instructions for forming different sets of Mind Reading Cards.
Tagged under: person' age,powers 2,binary numbers,forming age cards,computer numbers, age cards,addition,elementary school,middle school,mathematics,arithmetic
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