Kindermatic Montessori Dot Exercise 蒙特梭利 點的遊戲

The Dot Exercise provides practice in decimal system addition. Through use with this material, the child further explores column addition and experiences the mechanism of 'carrying.'

The dot exercise grid is printed on a white board upon which, the child writes with water-based pens of two different colors.

• Dimension: 15.5 x 9 inches