Transcript Parents Numeracy Workshop

Westwood Farm Infant School
Parents Maths Workshop
Supporting your child at home
with their maths
Wednesday 27th March 2013 @ 7.30pm
Maths............
What do you want to
know?
What do you find
hard to support at
home?
Let’s make a list!....
Maths is like…
Train-spotting… you jot down a whole
load of numbers for no
apparent reason
‘Marmite’…you either love it or hate
it depending on how it was
served up to you as a child
Aims of session
• To consider briefly how maths is
taught today.
• To consider the progression of
addition and subtraction methods
• To try and answer any questions or
concerns.
Your feedback…
What you suggested…
What is happening…
Show parents how maths is
taught today.
Today! Workshop focused on
methods.
Ideas for parents to use at
home.
Maths booklets added to the
school website.
Useful websites for children to
use at home.
List of websites included in your
information to take home.
Key differences today
• Interactive teaching
• Emphasis on mental calculation
• Different approach to written
calculation
• Maths through problem solving
• Maths is fun!
The aim..........
The aim is for children to do
mathematics in their heads, and if the
numbers are too large, to use pencil and
paper to avoid losing track.
To do this children need to learn quick
and efficient methods, including
appropriate written and mental methods.
Mental Maths?
How and why do
we teach
mental maths skills?
• Counting on 1
more/less
• Number bonds to 10
• Adding on 10 more
• Counting in 2’s, 5’s &
10’s
We want children to ask themselves:
Can I do this in my head?
Can I do this in my head using
drawings or jottings?
Finally – is my answer sensible?
Using practical equipment......
• Number lines
• 100 squares
• Numicon
• cubes
Addition
2+3=
At a party, I eat 2 cakes and my friend
eats 3. How many cakes did we eat
altogether?
Children could draw a picture to help them
work out the answer.
8+4=
8 people are on the bus. 4 more get on.
How many people are on the bus now?
Children could draw dots or lines, which is
quicker than drawing a picture.


or I I I I I I I I I I I I
5+2=
2+5=
7–2=
7–5=
Instead:
5, 2, 7
What sums can you
make with these
numbers?
Investigations
Which two numbers could have a
total of 15?
Link to money, measure, etc.
Choose 3 different coins that make
20p or less. What different amounts
can you make?
45 + 36 =
There are 45 boys in a school and 36
girls. How many altogether?
Children should partition (split) each number
into tens and units.
45 + 36
40 5 30 6
40 + 30 = 70
5 + 6 = 11
70 + 11 = 81
Number line
76 + 47 =
+10
76
+10
86
+10
96
+10
106
+7
116
+ 40
76
123
+7
116
123
Expanded column addition
358 + 473 =
358
+ 473
11
120
700
831
Subtraction
Children are taught to
understand subtraction as
taking away (counting back)
and finding the difference
(counting up).
5-2=
I had five balloons. Two burst. How
many did I have left?
Children could draw a picture to help them
work out the answer.
5-2=
A teddy bear costs £5 and a doll costs
£2. How much more does the bear cost?
Children could draw a picture to help them
find the difference.
8-3=
Mum baked 8 biscuits. I ate 3. How
many were left?
Children could draw dots or lines, which is
quicker than drawing a picture.


(find the difference)
or I I I I I I I I
(take away)
Number line – count back
Imran has 13 conkers; he gives 4 away to his
friends. How many does he have left?
13 – 4 =
-1
9
-1
10
-1
11
-1
12
9 conkers
13
Number line – count on
Imran has 43 conkers; he gives 24 away to his
friends. How many does he have left?
43 - 24 =
+10
+6
24
30
+3
40
43
19p more
54 - 38 =
There are 54 children in a school and 38
are poorly. How many are left at school?
Children should partition (split) each number
into tens and units.
54 - 38
30 8
54 - 30 = 24
24 - 8 = 16
Expanded Column Subtraction
74 – 23 = ?
663 – 378 = ?
500
150
50
13
70
4
600
60 3
- 20
3
- 300
70 8
200
80 5
50
1 = 51
= 285
Problem Solving at
home..........(Year 2)
After you have been shopping, choose 6 items each costing less than £1. Make
a price label for each one, e.g. 39p, 78p, 99p, 15p. Shuffle the labels. Then
ask your child to do one or more of these:
•
•
•
•
•
•
•
Place the labels in order, starting with the lowest
Say which numbers are odd or even numbers
Add 9p to each price in their head
Take 20p away from each price in their head
Say which coins to use to pay exactly for each item
Choose any 2 of the items and find their total cost
Work out the change from £1 for each item
Problem Solving at
home..........(Year 1)
You need a dice, pencil and piece of paper.....
•
Draw 4 circles on your piece of paper. Write a different number
between 2 and 12 in each circle.
2
•
•
•
6
9
8
Roll the dice twice. Add the two numbers.
If the total is one of your 4 numbers in circles then you may cross
it out.
The first person to cross out all 4 circles wins.
Any questions?