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Number Stairs Part 1: To investigate the relationship between the stair total and the position of the stair shape on the grid, for ot
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Mathematics GCSE Coursework: Number Stairs Part 1: To investigate the relationship between the stair total and the position of the stair shape on the grid, for other 3-step stairs. The number in the bottom left corner of the stair shape labels the position of the stair shape. The aim of this part of the investigation is to find a formula to work out the s-total (stair total) by knowing the s-number (stair number). 45 35 36 25 26 27 25 + 26 + 27 + 35 + 36 + 45 = 194 s-number = 25 s-total = 194 21 11 12 1 2 3 1 + 2 + 3 + 11 + 12 + 21 = 50 s-number = 1 s-total = 50 22 12 13 2 3 4 2 + 3 + 4 + 12 + 13 + 22 = 56 s-number = 2 s-total = 56 23 13 14 3 4 5 3 + 4 + 5 + 13 + 14 + 23 = 62 s-number = 3 s-total = 62 24 14 15 4 5 6 4 + 5 + 6 + 14 + 15 + 24 = 68 s-number = 4 s-total...
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