Addition Strip Board

A wooden board 12 squares by 18 square with the numerals 1-18 printed across the top. A wooden box containing 9 red wooden strips & 9 blue wooden strips of varying lengths both printed with numerals. 1. To give the child concrete experience in adding. 2. To aid the child in learning addition tables . 3. Practice in combination of numbers. 4. Preparation of abstract mathematics. 6 Concentration.