2. Square 12 3 No 4 How many tiles needed to make the next square 9 Notice the number of tiles is the area of that shape The number of tiles that form a square are called perfect squares All sides are the same length Forms a Square # of tiles used model Yes ? ? No Length of side or square root 1 2 3

3. # of tiles on each side Mathematical Process Total Tiles 1 2 3 4 5 6 7 8 9 10 1 4 9 16 25 36 49 64 81 100 1 X 1 2 X 2 3 X 3 4 X 4 5 X 5 6 X 6 7 X 7 8 X 8 9 X 9 10 X 10 Perfect Squares Square Root

5. (Pretend all these tiles are the same size) Total tiles = 16 Length of one side = 4 Mathematical process 4 X 4 = 16 The square root of 16 is 4. Written √ 16 = 4

6. 25 = 49 = 144 = 225 = 100 = 75 = 5 7 12 15 10 Between 8 and 9 You are NOT dividing by two Area of square Length of one side of square Remember =

7.  NOTES

8. Date ___________

9. Square Length of all sides or square root # of tiles used model Forms a square

10. 1 2 3 4 5 6 7 8 9 10

11. Total tiles = Length of one side = Mathematical process The square root of ___ is __. Written

12. You are NOT dividing by two