Subtraction with Short Bead Stair

Age

3-6

Materials

1. One Short Bead Stair.
2. Sets of Subtraction Cards.

Presentation

1. Directress invites the child to build a triangle with the Short Bead Stair.
2. Directress gives the child a work card and assists her to work through the questions on the work cards, for e.g. 9 - 5.
3. The child takes a 9 Short Bead Stair.
4. Cove 5 Bead at the right end of the bar, leaving 5 uncovered.
5. These uncovered bead are then counted.
6. Directress then shows the child how to record the answer on the answer square.

Control Of Error

1. The Red Boxes control the place the child puts the answer.
2. The Short Bead Stair controls the minuend. (The amount to start with)

Purpose

• Supplement the subtraction activity introduced with the Number Rods and to give the child further practice.