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Begin with squares


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Last updated 26 October 2012 15:30 by NZTecAdmin

Activity:

Ask the learners if they know what is meant by “a square number”. Discuss that square numbers refer to a counting number, i.e. 1,2,3,.., being multiplied by itself. Connect this to the area of a square with known side length through several examples, like:

32 = 9 A square with sides of length 3 has an area of 9 square units.

52 = 25 A square with sides of length 3 has an area of 25 square units.

A good example of a square number in measurement is the hectare (ha.). This is the area of a square that is 100 metres x 100 metres = 10 000 square metres (m2).

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