Description

• 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.
• Using the Subtraction Strip Board, the child practices the equations of the subtraction tables 1–18. Natural wooden strips corresponding in length to the squares 1–18 are used to indicate the number to subtract from (minuend) and 1 set of blue strips used to subtract with (subtrahend). A set of red strips is included for further explorations. The 2 sets of strips are stored in hardwood boxes.

Montessori Strip boards:

• Material: High-Quality Beech Wood
• Size: 31.0*22.5*3.0cm
• Content: One Box, One Board Printed Both Sides, 17 Pieces Of Wood Strips,9 Pieces Of Redwood Strips, And 9 Pieces Of Blue Wood Strips In A Wooden Container