Recognise geometric sequences and appreciate other sequences that arise

1. Algebra Tree - Select correct algebraic expressions to complete a pattern
2. Willy Watches Matches - Identify the correct algebraic expression to describe a number pattern
3. Astro Al's Arithmagon - triangle number puzzle
4. Mathematical Magic - square puzzle, same sum in all directions
5. Tim the Tile Man - find and continue pattern
6. Shaping Lines - find coordinates for given point
7. Mathematical Magic - square puzzle, algebraic expressions, same sum in all directions
8. Mathematical Magic - square puzzle, algebraic expressions, same sum in all directions
9. Mathematical Magic - square puzzle, same sum in all directions
10. Mathematical Magic - square puzzle, same sum in all directions
11. Algebra Tree - select appropriate expressions
12. Mathematical Magic - square puzzle, algebraic expressions, same sum in all directions
13. Joe's Jailhouse Locks - continue pattern