Transcript Maths Workshop July 2013

Maths Workshop
December 2013
Aims
• To share some of the strategies that
we use in our school to teach “Number”
and “Calculation”.
• To give you some ideas of how to make
maths fun for your child/ren.
NUMBER
We teach the children
to read, write, count,
compare and order
numbers.
Expectations
Reception
• Count reliably to 20.
• Order numbers.
• Use language such as more/less to describe numbers
Year 1
• Read, write, count and order numbers to 10 then beyond.
• Begin to use the fraction one half.
Year 2
• Count sets of objects reliably.
• Begin to understand the place value of each number and use this
to order numbers up to 100.
• Begin to use halves and quarters.
Reading and Writing Numbers
at home
• Practise
Try to make it fun,
• reading numbers that you see on your
way to school.
• Writing using big paint brushes, squeezy
bottles, chalk.
• Writing in sand, flour, shaving foam or
“gloop”.
Click
for the
pencil
Click
green
for go!
Counting
• We sing number songs and rhymes.
• We count objects and match numbers to
them.
• We use number lines and number squares
(sometimes called 100 squares)
• We also use resources such as Numicon
Ordering and recognising
numbers
• The children order the
numbers from smallest to
largest.
• Then they add the numbers as
figures or words underneath.
• The children quickly spot the
differences between the even
numbers and the odd numbers.
How quickly can you order the
Numicon?
CALCULATION
We teach the children to
add, subtract, multiply and
divide.
This includes doubling and
halving.
Expectations
Reception
• Using objects they add and subtract
two single digit numbers and count on or
back to find the answer.
• They solve problems including doubling,
halving and sharing.
Expectations
Year 1
• Understand subtraction as taking away
objects from a set and finding out how many
are left.
• Add and subtract numbers of objects to 10.
• Begin to know some addition facts.
• Solve addition/subtraction problems up to 10
objects.
• Record their work.
Addition Recording
What we teach now
4+2=6
The New Curriculum
4
+2
6
Expectations
Year 2
• Use their knowledge that subtraction is the inverse
of addition and understand halving as a way of
“undoing” doubling and vice versa.
• Use mental recall of addition and subtraction facts to
10.
• Use mental calculation strategies to solve number
problems including money and measures.
• Record their work in writing.
• Choose the appropriate operation when solving
addition and subtraction problems.
The children are also using multiplication and division.
Strategies for teaching
Addition and
Subtraction
Calculating at home
Counting how many knives and
forks are needed to set the table.
What if you have an extra guest?
How many characters are there in
Goldilocks and the 3 Bears?
How many eggs are there in one
box? How many in two boxes?…
Addition and Subtraction in
Reception
• Lots of practical play based work with
some recording.
Early Strategies for addition and
subtraction.
Using hands then pictures.
Addition and Subtraction
Using Numicon
Using a number line to add or
subtract
3+4=
We encourage the children to put the biggest
number first. So the child would start on 4,
then count on 3 more.
1
2
3
4
5
6
7
8
9
10
11
12 13 14 15 16 17 18 19 20
Using partitioning to add or
subtract
34 + 23 =
30 + 20 = 50
4+3=7
50 + 7 = 57
(This looks complicated
but we use special
cards to help the
children separate the
tens and units)
25 – 12 =
20 – 10 = 10
5–2=3
10 + 3 = 13
(We only teach this
step when they are
confident using
partitioning to
add)
Game
• Use the Numicon tiles to find
out how many different pairs of
numbers add up to 10.
• This is one method that we use
to teach number bonds. We
start with bonds to 10, then 20,
then 100...
Early Strategies for
Multiplication
2x2=4
Strategies for Multiplication
3x5=
Strategies for Division
12 shared between 3 groups.
12 ÷ 3 = 4
We use counters or cubes and
physically share them out. Then
move on to drawing simple pictures
and drawing rings around them.
Finally…
Inverse Operations
We teach the children that subtraction
can undo addition and that division can
undo multiplication.
6 + 4 = 10
10 – 6 = 4
2 x 6 = 12
12 ÷ 2 = 6
We use unifix cubes to demonstrate this.
Any questions?
Please can you take a little
time to complete an evaluation
form?
Thank you very much for
joining us today. I hope that
you have found it useful. I will
be holding another work shop
later in the year.