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