Teaching sequences (from Summer Institute)

7, 9, 11, 13 …           2n+5   [step]n+[one before/0th term]

10, 12, 14, 16, …     2n+8

70, 80, 90, …         10n+60

After you’ve predicted a sequence, substitute numbers and see if it works.

Much easier to do coming from an investigation into triangles or squares (simplest).

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