Lesson Progress:
ACTIVITY:

## Montessori Static Subtraction with the Golden Beads

MATERIALS:

A set of large number cards

Three sets of small number cards

2 felt mats

A felt lined tray for each child

3 tables – one for the beads (bank)

one for the cards

one floor mat

OBJECTIVES:

To teach the child about subtraction in the concrete form.

To teach the child the term “subtraction”

CONTROL OF ERROR:

NA

AGE: 4 - 5 years approx.
• He also takes away 2 ten bed bars, and 2 hundred bead squares from the mat and places them on his tray.
• Show the child how to place the small number cards under the large number cards to remind him of the number that he subtracted.
• The tray with the beads is then set to one side on the mat.
• The Montessori Directress then tells the children that we must count the beads left over on the mat to find our answer.
• We start counting the units, then the tens, then the hundreds.
• The child collects and places the corresponding small number cards below the beads at every stage.
• The Montessori Directress re-states the sum. She also says that we did “subtraction” – that is, we started with a big amount and now we only have a small amount of beads left.
• End the work cycle.

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