2) Investigate how many blocks are needed to make build an up-and-down staircase with 3, 4 and 5 steps up and down. Record your results in the table below. Number of steps up and down | Number of blocks needed to make staircase 1 | 1 2 | 3 | 4 | 5 | 3) Write out the above sequence in numbers:
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For a staircase with 4 steps, we need 5 blocks (4 for the steps and 1 for the base). So, it seems like the number of blocks needed is always one more than the number of steps. Show more…
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