Addition Booklets

STRIP BOARD (including doubles)

c. Addition Booklets

Control of error: Chart I. The child simply compares his page to a column on the chart.

Materials:
…mimeographed booklets of nine pages each; each page has
…nine combinations with a common first addend
…addition strip board and strips
…control chart I (81 combinations in 9 columns)

Exercises:
The child chooses one page in the booklet. He reads the first combination 3+1=__. The first addend is 3, so the blue strip for 3 is placed on the board. The second addend is 1, so the pink strip for 1 is added. The sum is read at the top, and is written in the booklet near the equal sign. The first addend remains the same, therefore the blue strip remains on the board. The pink strip may be turned face down in its place, to remind us that we’ve finished with 1. The child follows the order on the form.

If the child is just writing the numbers in succession on the column, the aim of memorization is not being met. Therefore, the child may complete a page in any order. A booklet with random order problems for one number can be introduced as well.
example:

3+2=__
3+4=__
3+7=__
3+9=__
3+1=__
3+1=__
3+5=__
3+8=__
3=3=__
3+6=__

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