Shu-Chen Yen's On-Line Montessori Albums

MATH DEVELOPMENT ALBUM

9.1 DIVISION BOARD


MATERIALS:

1. A natural wood board with 81 holes the size of unit beads. The holes are arranged to form a square in the center of the board. The top section of the board contains 9 numbered sockets. The strip on the top is green. The numerals 1 to 9 are marked down the left side of the board.

2. A container with 81 green unit beads.

3. 9 small green skittles.

4. Small dish or container.

5. Prepared cards.

PREPARATION:

1. Invite the child who has worked with division in the decimal material, the

2. stamp game and multiplication tables to do this exercise.

3. Take the materials to a table.

PRESENTATION:

1. Take a problem card such as 18 * 9 = ____.

2. Count out 18 green beads and place them in the dish.

3. Place 9 skittles across the board.

4. Say, "We are going to divide these beads equally among 9 skittles. We will give one bead each to all 9 skittles."

5. Distribute one bead to each skittle.

6. Seeing more beads in the dish, give another bead to each of all 9 skittles.

7. Say, "Each skittle has 2 beads."

8. The answer is "what each skittle gets," which is 2.

9. Verbalize "18 * 9 = 2."

10. Remove one skittle.

11. Take the beads back into the dish.

12. Divide these same 18 beads equally among the eight skittles.

13. After you divide the beads note that there are two beads left.

14. Say, "We cannot give these beads to any skittle. This is a remainder."

15. Record it.

CONTROL OF ERROR

1. Number of beads left in basket.

2. Number of skittles.

3. Control charts.


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