multiplication on mathline. for multiplication on mathline: introduce multiplication practice...

Multiplication on Multiplication on MathLineMathLine

For Multiplication on MathLine:For Multiplication on MathLine:

Introduce Multiplication Introduce Multiplication

Practice Multiplication Math FactsPractice Multiplication Math Facts

Multiply all facts up to 10 x 10Multiply all facts up to 10 x 10

Basic Multiplication Word ProblemsBasic Multiplication Word Problems

Memorize Math FactsMemorize Math Facts

Multiplication – Step 1

Take the word problem:Take the word problem:

Jon was stacking piles of three books Jon was stacking piles of three books each on four shelves. How many books each on four shelves. How many books

did he stack in all? did he stack in all?

Multiplication – Step 1

Take the word problem:Take the word problem:

Jon was stacking piles of three books Jon was stacking piles of three books each on four shelves. How many books each on four shelves. How many books

did he stack in all? did he stack in all?

4 X 34 X 3

Clear MathLineClear MathLine

4 X 34 X 3

Multiplication – Step 1

Remember the Grouping Method

Build four groups of 3 rings.Build four groups of 3 rings.

44 X X 33

2 3 41

Multiplication – Step 2

On MathLine multiply rings to the left.On MathLine multiply rings to the left.

44 X X 33

Multiplication – Step 3

Student sees product on MathLineStudent sees product on MathLine

4 X 3 = 4 X 3 = 1212

Multiplication – Step 4

Multiplication – Step 1

Remember, Remember,

Multiplication is simply repeated Multiplication is simply repeated additionaddition

Notice youNotice you kinesthetically do the same kinesthetically do the same action for multiplication and addition on action for multiplication and addition on

MathLine!MathLine!

Multiplication – Step 1

Let’s do a larger problemLet’s do a larger problem

Take 7 x 8Take 7 x 8

Clear your MathLine

7 X 87 X 8

Multiplication – Step 1

Remember the Grouping Method

Build 7 groups of 8 rings.Build 7 groups of 8 rings.

77 X X 88

1

Multiplication – Step 2

2 groups of 8.2 groups of 8.

7 X 7 X 88

1 2

Multiplication – Step 3

3 groups of 8.3 groups of 8.

7 X 7 X 88

1 2 3

Multiplication – Step 4

4 groups of 8.4 groups of 8.

7 X 7 X 88

1 2 3

4

RULE: RULE: Begin group Begin group on one bar, on one bar, continue on continue on the next.the next.

Multiplication – Step 5

5 groups of 85 groups of 8

1 2 3

4

5

Multiplication – Step 6

7 X 7 X 88

6 groups of 8.6 groups of 8.

1 2 3

4

5 6

Multiplication – Step 7

7 X 7 X 88

7 groups of 8.7 groups of 8.

1 2 3

4

5 67

Multiplication – Step 8

7 X 7 X 88

RULE: RULE: Begin group Begin group on one bar, on one bar, continue on continue on the next.the next.

Multiply all rings to the left.Multiply all rings to the left.

Multiplication – Step 9

7 X 7 X 88

Student sees product on MathLine.Student sees product on MathLine.

Multiplication – Step 10

7 X 7 X 8 =8 = 56 56