median
don steward
mathematics teaching 10 ~ 16

Saturday, 26 November 2011

arithmetical progressions


















you could present this diagram to students and ask for their observations about the various number patterns

the diagrams can be seen to involve the sums of arithmetical progressions with a common difference of 3 (d = 3) and starting numbers (a) = 1 , 2 , 3 and 4

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