1.	How many blocks are used in Stages 1–3?
		A.	4, 7, 10	B.	9, 15, 21
		C.	3, 7, 10	D.	3, 6, 10
		Hint
	2.	Find an expression for the number of blocks in Stage s.
		A.	2s + 1	B.	2s2
		C.	s2	D.	s + 1
		Hint
	3.	Without building it, predict the number of blocks in Stage 7.
		A.	49	B.	100
		C.	64	D.	81
		Hint
	4.	Create a block pattern with s2 – 1 blocks.
		A.		B.
		C.		D.
		Hint
	5.	Describe this pattern.
		A.	square pattern	B.	''add 1'' pattern
		C.	cube pattern	D.	doubling pattern
		Hint