Qtoys | Montessori Circle Size PuzzleThis large Montessori inspired puzzle has 9 smooth wooden circle pieces in different sizes with knobs for easy grasping. It is a great first puzzle and a beautiful resource for helping children learn size discrimination, early mathematic principles and practice their motor skills. All of the puzzle pieces are the same shape, which means children are able to focus on the size and match each piece with the corresponding space, promoting spatial