Category: Instructional Materials

Math Pegboard for Number Regrouping

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Math Pegboard for Number Regrouping is designed to assist children with or without cognitive or learning disabilities better understand the concept of regrouping numbers during mathematical problems.  It is a wooden pegboard consisting of three or four 3 inch high pegs aligned in one horizontal row.  Each peg represents a number column, i.e. “ones”, “tens”, “hundreds” and perhaps “thousands”.  Cardboard counters (color-coded according to the numbers column in which they belong) are placed over the pegs.  The student performs simple math problems that involve borrowing or carrying numbers using this device.

Technical Specifications: 

Rectangular piece of wood, 15 inches long x 4 ½ inches wide x ¾ inches thick
One ¼ inch diameter wooden dowel
Four sheets of stiff poster board, each a different color
Woodworker’s glue

Jigsaw or other appropriate wood saw
Electric drill
Sandpaper, pencil and ruler
Wooden mallet or hammer
Heavy-duty scissors

Use the jigsaw to cut out the wooden base and sand all edges.
To make and attach the wooden pegs:
Use a hacksaw to cut the dowel into 3 ½ inch long pieces. Sand the rough edges.
With a pencil and ruler, mark spots on the wooden base for the three or four pegs so they are approximately 3 inches apart in one horizontal row.
Using a ¼ inch diameter drill bit, drill a hole halfway through the base at each marked spot.
Fill the holes halfway with woodworker’s glue and hammer the dowel pieces into the holes.
To make the rectangular counters:
On each sheet of poster board, use the pencil and ruler to measure out at least ten rectangles 3 inches x 2 ½ inches.
Cut out the rectangles using heavy-duty scissors. You may wish to make extra counters, in case any get bent or lost.
Drill a hole in each rectangle, centered approximately ¾ inches from one short edge, using a 3/8 inch drill bit.
Place the counters on the pegs, making sure each peg contains ten counters of a single color.

Author: This version was designed by Lucy Kulis, M.S., Remedial Specialist , Cotting School.


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