For each letter, make a unique symbol or shape or another letter or number. Make copies of this and have boys write a coded message for the boy on his right to decode
| A | B | C |
| D | E | F |
| G | H | I |
| J | K | L |
| M | N | O |
| P | Q | R |
| S | T | U |
| V | W | X |
| Y | Z | 1 |
| 2 | 3 | 4 |
| 5 | 6 | 7 |
| 8 | 9 | 0 |
For each letter, make a unique symbol or shape or another letter or number. Make copies of this and have boys write a coded message for the boy on his right to decode
| A | B | C |
| D | E | F |
| G | H | I |
| J | K | L |
| M | N | O |
| P | Q | R |
| S | T | U |
| V | W | X |
| Y | Z | 1 |
| 2 | 3 | 4 |
| 5 | 6 | 7 |
| 8 | 9 | 0 |