1. Teacher notes
You can sometimes find examples of these in the daily newpaper puzzle pages (Try the independent?)
You might want to print off multiple copies of them so that people can make mistakes or laminate the easier ones.
This task not only tests there problem solving but also there reslillance, show them that the first time it might not be correct and to keep trying.

2. Cell Blocks
Divide the grid into blocks. Each block must be either a square or a rectangle and must contain the number of cells indicated by the number inside it. Example:
There are printable grids to support this activity. 4 2 4 2

3. Easy examples: 2 1 1 3 2 2 4 6
The number 2 shows that there are 2 squares in this block.

4. Lets try this example as a VMG3 6 1 2

5. Answer 1 3 2 6

6. Harder example: 3 6 5 4
There are printable grids to support this activity.

7. Cell Blocks
Solution: (There is only one possible solution to each Puzzle.) 3 6 5 4

8. A
Cell Blocks
Divide the grid into blocks. Each block must be either a square or a rectangle and must contain the number of cells indicated by the number inside it. 5 6 2 4 3

9. B
Cell Blocks
Divide the grid into blocks. Each block must be either a square or a rectangle and must contain the number of cells indicated by the number inside it. 5 2 4 1 6 12

10. C
Cell Blocks
Divide the grid into blocks. Each block must be either a square or a rectangle and must contain the number of cells indicated by the number inside it. 3 6 2 4

11. Print outs
Example
Cell block A 3 6 5 4 5 6 2 4 3

12. Print outs
Cell block B 5 2 4 1 6 12

13. Print outs
Cell block C 3 6 2 4