Monday, 14 September 2015

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Montessori Activity: Small Bead Frame - Static Subtraction (Without Exchange)



Note: I am showing the large bead frame above, because it is not necessary to buy both the small bead frame and the large bead frame. I am using the large bead frame to do the small bead frame exercises.

AGE: 5.5 (after the child has worked with the Stamp Game)

OBJECTIVE(S):

To show the relationship between the different place values in the decimal system.

MATERIALS:

1. Small bead frame
2. 1 worksheet
3. 1 green, red and blue pencil

PRESENTATION:

1. Read a problem to your child, i.e.:
  4958
- 3715
--------
  1243

2. Ask the child to build the minuend in beads to the right of the frame, i.e. slide 8 green unit beads, 5 blue ten beads, 9 red hundred beads and 4 green thousand beads to the right.

3. Slide 5 green unit beads back to the left to show the subtraction of 8 - 5.

5. Slide 1 blue ten bead back to the left to show the subtraction of 50 - 10.

6. Slide 2 red hundred beads back to the left to show the subtraction of 900 - 700.

7. Slide 1 green thousand bead back to the left to show the subtraction of 4000 - 3000.

8. Count the remaining beads on the right and record the answer on the worksheet, i.e. 1243.

VIDEO DEMONSTRATION:


https://youtu.be/APR1kSyxGAQ

ADDITIONAL INFORMATION:

J tried this on 14 September 2015 (6Y6M9D). He could do it, but was a little careless with the tens and the hundreds.


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