Well, we are not writing here all the benefits children can develop while playing with puzzles. I believe you have read enough. But what we want to share with you is how to play other very fun toddler learning games using the puzzle because this is not just a puzzle.
It teaches geometry ! It has six shapes - ask the child how many shapes they can spot. Perhaps they could spot more than 6 shapes! It has an oval, a rectangle, square, triangle, pentagon and a circle. Extend further to help the child recognise shapes - which shape is 3-sided, 4-sided, 5-sided. Which shape has 4 equal sides?