This series of self correcting puzzles develop logical thinking skills through matching ten pairs of objects with a common theme. The series includes:

-Opposites puzzle: pairing opposites.

- Match it puzzle: pairing compatible objects .

- Look for the shadow: matching objects to their shadow images.

- Colours: matching multicolored objects to the crayons used to colour them.

- Before & After: matching sequential events.

- Who uses What?: matching different professions and their tools