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Unit Binary numbers
Year Level: 5Topic: Data representationsTime: 2 hours

The binary number system plays a central role in how information of all kinds is stored on computers. Understanding binary helps to unravel the mystery of computers, as students begin to understand that binary digits represent on and off. Binary cards can be used to introduce the binary number system. Students can see the connection between binary digits represented as dots and the corresponding decimal number. When cards are placed in sequence students can create a binary number displaying cards as on or off. Students explain how a standard system of encoding is used to represent numbers, text and other special characters.

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