1. Maths Workshops For Parents
SCOTTS PRIMARY SCHOOL
Maths Workshops For Parents
Helping Your Child in Multiplication and Division
MATHS WORKSHOP FOR PARENTS

2. SCOTTS PRIMARY SCHOOL
Multiplication
MATHS WORKSHOP FOR PARENTS

3. Use of Vocabulary Product 10 x more than etc Twice Double Multiply
SCOTTS PRIMARY SCHOOL
Use of Vocabulary
Product
10 x more than etc
Twice
Double
Multiply
Repeated addition
Multiple
MATHS WORKSHOP FOR PARENTS

4. SCOTTS PRIMARY SCHOOL
Multiplying by 10, 100, 1000,
We move the numbers not the decimal point.
1000
100 10 1
1/10
1/100
1/1000
MATHS WORKSHOP FOR PARENTS

5. Have a go 100 x 0.3 10 x 0.05 1000 x 4.03 SCOTTS PRIMARY SCHOOL
MATHS WORKSHOP FOR PARENTS

6. SCOTTS PRIMARY SCHOOL
X 25, 50, 200
25 x 12
25 x 50
25 x 25
50 x 18
200 x 45
MATHS WORKSHOP FOR PARENTS

7. Mental Methods of calculation
SCOTTS PRIMARY SCHOOL
Mental Methods of calculation
Partitioning – breaking up the sum into parts and doing each part separately.
47 x 5 =
(40 x 5) + (7 x 5) = = 235
34 x 7 =
56 x 5 =
45 x 6 =
MATHS WORKSHOP FOR PARENTS

8. Years 3 and 4 Split Array 15 x 6 = 90 10 5 x 10 x 6 = 60 5 x 6 = 30 6
SCOTTS PRIMARY SCHOOL
Years 3 and 4
Split Array
15 x 6 = 90 10 5 x
10 x 6 = 60
5 x 6 = 30 6
MATHS WORKSHOP FOR PARENTS

9. Have a go 35 x 7 = 45 x 8 = 56 x 3 = 346 x 9 = SCOTTS PRIMARY SCHOOL
MATHS WORKSHOP FOR PARENTS

10. SCOTTS PRIMARY SCHOOL
Using Tables
Times table knowledge is vital for multiplying and dividing.
We often use facts to help in calculations
16 x 8 =
(8 x 8 = 64, so 16 x 8 must be128)
11 x 13 =
10 x 13 = = 141
MATHS WORKSHOP FOR PARENTS

11. SCOTTS PRIMARY SCHOOL
The Factor Method
Years 3 and 4 also use this, although in a simple form
Children need good tables knowledge
30 x 12 =
30 x (6 x 2) or (3 x 4)
30 x 6 = 180 x 2 = 360
MATHS WORKSHOP FOR PARENTS

12. The Factor Method Gets a bit more advanced in years 5 and 6 3.5 x 16
SCOTTS PRIMARY SCHOOL
The Factor Method
Gets a bit more advanced in years 5 and 6
3.5 x 16
(2 x 8) or (4 x 4) or (1 x 16)
3.5 x 2 = 7
7 x 8 = 56
MATHS WORKSHOP FOR PARENTS

13. Have a go 14 x 12 16 x 15 3.5 x 18 = 4.25 x 16 = SCOTTS PRIMARY SCHOOL
MATHS WORKSHOP FOR PARENTS

14. SCOTTS PRIMARY SCHOOL
The Italian Method
Often used instead of more traditional methods – for simplicity it is hard to beat. 1 3 5 X 2
MATHS WORKSHOP FOR PARENTS

15. Have a go 245 x 56 345 x 45 45.3 x 13 SCOTTS PRIMARY SCHOOL
MATHS WORKSHOP FOR PARENTS

16. SCOTTS PRIMARY SCHOOL
Division
MATHS WORKSHOP FOR PARENTS

17. Vocabulary Division Inverse of Multiplication Quotient
SCOTTS PRIMARY SCHOOL
Vocabulary
Division
Inverse of Multiplication
Quotient
10 x Smaller etc
Repeated Subtraction
Half
Quarter
Share
MATHS WORKSHOP FOR PARENTS

18. SCOTTS PRIMARY SCHOOL
Dividing by 10, 100, 1000 and
We move the numbers not the decimal point.
1000
100 10 1
1/10
1/100
1/1000
MATHS WORKSHOP FOR PARENTS

19. SCOTTS PRIMARY SCHOOL
Have a go
3.25 / 1000 =
0.56 / 100 =
/ 10 =
MATHS WORKSHOP FOR PARENTS

20. The Chunking Method We teach division as repeated subtraction.
SCOTTS PRIMARY SCHOOL
The Chunking Method
We teach division as repeated subtraction.
This is the basis for chunking
Can be used for long division also
MATHS WORKSHOP FOR PARENTS

21. Using repeated subtraction
SCOTTS PRIMARY SCHOOL
Using repeated subtraction
5 36
25 (5x5)
11 (5x2) 1
The answer is 7 remainder 1/5
(or 0.2)
MATHS WORKSHOP FOR PARENTS

22. SCOTTS PRIMARY SCHOOL
Have a go
12 250
MATHS WORKSHOP FOR PARENTS

23. Have a go 12 250 120 (12x10) 130 10 The answer is 20 and 10/12
SCOTTS PRIMARY SCHOOL
Have a go
12 250
120 (12x10)
130 10
The answer is 20 and 10/12
MATHS WORKSHOP FOR PARENTS

24. Next Meeting on + and - Thursday 28th February 2013 @ 6.30pm
SCOTTS PRIMARY SCHOOL
Next Meeting on + and -
Thursday 28th February 2013
@ 6.30pm
MATHS WORKSHOP FOR PARENTS

25. Number lines & decomposition
SCOTTS PRIMARY SCHOOL
Number lines & decomposition
Used for subtraction
Likely to see in lower end of school and with children less confident with decomposition.
MATHS WORKSHOP FOR PARENTS

26. 35,