Shu-Chen Yen's On-Line Montessori Albums

MATH DEVELOPMENT ALBUM

8.4 MULTIPLICATION BEAD BOARD


MATERIALS:

1. Set of cards Set of small cards 1-10

2. Red disc Papers for recording

3. red beads Multiplication board

4. On multiplication board slot on left is for insertion of card indicating the number in the set with which child is working. Numbers printed across the top of the board indicate number of sets which have been placed on the board.

PREPARATION:

1. Invite the child who has worked with the bead bar layout to do this exercise.

2. Take the material to a table and ask the child to select a problem card with which he would like to work.

PRESENTATION:

1. When the exercise begins, the red disc is in the upper left hand corner.

2. Place in slot numeral which indicates sets to be used in exercise. (5)

3. Place the disc directly above the printed 1 at the top of the board.

4. Place 5 beads in the column directly below the 1, thus forming 1 set of 5 or 1 x 5.

5. Record product on the paper in the space provided.

6. Move the disc to the position directly above the 2, thus indicating that you are going to lay out another row of 5.

7. When 5 beads have been placed in the column below the 2, there are two sets of 5 on the board.

8. Record 2 x 5 = 10.

9. Continue in same way to 10 sets of 5 or 10 x 5.

CONTROL OF ERROR:

1. Counting the beads.

2. Control chart.

POINTS OF INTEREST:

1. Seeing beads correspond to red numeral.

2. Seeing rows of beads.

3. Seeing rows of beads form a square or a rectangle.

4. Counting the beads.

5. Moving the disc.

6. Writing the equation on paper.

7. Using the chart to check work.

AIMS:

1. Visual representation of multiplication tables.

2. Memorization of tables.

3. Practice in building equations.

4. Preparation for division, geometry, etc.

AGE:

5+


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