St. Cyprian’s Greek Orthodox
Primary Academy
Parent Workshop
KS1 Multiplication and division
November 2015
Mrs Adrien and Miss Campbell
1
Purpose of workshop
 To explain how we teach your child x and ÷ in KS1.
 To give you some ideas of how you can help and
support your child at home.
Maths – when do we use it?
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Multiplication vocabulary
x
o groups of
o lots of
o times table
o times
o multiplied by
o multiply
o double
4
Multiplication
Counting in 10s
5
Multiplication
Counting in 2s
6
Multiplication
Counting in 5s
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Multiplication
• Children
need to learn multiplication tables and multiplication
facts.
• Yes – learn to recite tables but also need to know table facts at
random.
• e.g. 8 lots of ten are?
• And answer questions like “ How many tens in 80?”
• Not secure in times tables until able to do this quickly.
Should be working on 10x, 2x and 5x tables in Year 1, continue and
work on 3x and 4x in Year 2.
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•
Multiplication
Problem solving
There are 10 pencils in a pack.
How many pencils are there in 4 packs?
Repeated addition
10 + 10 + 10 + 10 = 40
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Multiplication
3 times 5 is the same as 5 + 5 + 5 = 15 or 3 lots of 5 or 3 x 5
On a number line
5
5
0
5
5
10
15
10
Multiplication
As an array
3 x 5 = 15
5 x 3 = 15
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Problem solving
Ella’s dad washes some cars. He
uses 12 buckets of water. Each
bucket has 5 litres of water. How
many litres of water does he use
altogether?
There are 15 apples in a tray. Ling
has 4 trays of apples.
How many apples does Ling have
altogether? Show how you work
it out.
Your turn! Can you draw pictures or make jottings to show how you could
work one or both of these out?
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Ella’s dad washes some cars. He uses 12 buckets of water.
Each bucket has 5 litres of water. How many litres of water
does he use altogether?
5 10 15 20 25 30
35
40 45
50 55
60
Or 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 = 60
Or count in 5s 12 times.
Or 12 x 5 =60
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There are 15 apples in a tray. Ling has 4 trays of apples.
How many apples does Ling have altogether? Show how you
work it out.
151415
15
10 + 5
151415
15
10 + 5
4 lots of 10
4 lots of 5
40
+ 20
151415
15
151415
15
10 + 5
10
20
30
5
10
15
10 + 5
40
20
= 60
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Division vocabulary
share
o share equally
o divide
o divided by
o groups
o halve
o half
o
15
Division
• Children start by understanding equal groups and sharing items out in
play and problem solving. Count in 2s, 10s and 5s.
•Sharing equally.
There are 6 sweets. How many sweets can 3
children have each?
16
Division
Grouping
There are 6 sweets.
How many children can have 2 each?
17
So how can you work out a division sum
using times tables?
Count in 2s until you get to 16.
2 4 6 8 10 12 14
16
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Division using an empty number line
How many groups of 5 are there in 25?
25 ÷ 5 = 5
5
0
5
5
5
10
5
15
5
20
25
19
Your turn!
There are 30 children in the class. They need to be
in teams of 5. How many teams will there be? Use
an empty number line to work it out.
5
0
5
5
5
10
5
15
6 groups of 5 make 30.
5
20
5
25
30
So 6 teams.
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How you can support your child at home
Look for and talk about numbers in the environment
Play games
Shopping
Counting on/back
Number bonds
Doubles/Halves
Times tables
Multiplication facts
Division facts
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Useful websites
http://www.familylearning.org.uk/multiplication_games.html
http://www.ictgames.com/resources.html
http://www.bbc.co.uk/bitesize/ks1/maths/
http://www.comberps.newtownards.ni.sch.uk/maths_games_for_ks1.htm
http://www.maths-games.org/time-games.html
http://www.bbc.co.uk/schools/websites/4_11/site/numeracy.shtml
http://www.woodlands-junior.kent.sch.uk/maths/index.html
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