Using the Addition Strip Board, the child practices the sequence of addition combinations 1–9, and begins the process of memorization of the addition tables. The material is composed of a hardboard chart 12 squares by 18 squares with the numbers 1–18 printed across the top. Stored in a hardwood box are the strips used for the exercise, 9 red strips divided into squares and 9 solid blue strips, both printed with the numerals 1–9.
Data sheet
- Tranche d'âge
- 3-6 ans
- Longueur
- 42 cm
- Largeur
- 30 cm
- Hauteur
- 5 cm
- Poids
- 800 g
