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Homerswood Primary School Year 1 to 4 Maths Parent Workshop Thursday 6 th March 2014.

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Presentation on theme: "Homerswood Primary School Year 1 to 4 Maths Parent Workshop Thursday 6 th March 2014."— Presentation transcript:

1 Homerswood Primary School Year 1 to 4 Maths Parent Workshop Thursday 6 th March 2014

2 Aims To explain how we teach your child to add and subtract. To give you some ideas of how you can help and support your child at home.

3 Addition Vocabulary  together  more than  plus  add  total  and  sum

4 Addition Adding practically =5

5 Addition = 10 Encourage children to put the biggest number in their head and count on. 6

6 Addition  Use of number line to count on =

7 Place Value Tens and Units Recognizing the value of each digit in 2 or more digit numbers.

8 Partitioning

9 This is a ten stick. It is made up of 10 units, or ones, stuck together. This is a unit. It is one square on its own.

10 What number is this? We have made ten 3 units

11 What number is this? We have made 40 4 tens 0 units

12 Addition using place value on a number square = ? Find 35 on the number square. Partition 26 = 2 tens + 6 Move down – Add 6 more.

13 Addition by partitioning = (Partition the smallest number into 10s and 1s) = 49 (Add the units onto the number) = 79 (Add the tens onto get the final answer)

14 Using an empty number line So we start at the biggest number…47 So… = =

15 Have a go together = (40 + 4) 12985

16 So what is = 23 So… = = 57

17 Number bonds to 10/20/ = = = = = = = = = = = 10

18 Addition using tens and units  It is vital that children understand the value of each digit for column addition. Partitioning

19 Level 3: Partitioned vertical method: = 55 Level 4: Standard vertical method: with carrying with carrying

20 Subtraction Vocabulary  difference between  subtract  fewer  minus  take from  less than  take away

21  4 – 2 = Taking away practically Subtraction

22 30 – 5 =25 Use of a 100 square to take away =23

23 10 – 5 =5 Use of a number line

24 43 – 27 = = Subtraction using a blank number line (counting on)

25 54 – 32 = = Have a go together

26 Subtraction using a blank number line Counting Back 67 – 23 = 44 Partition first, then count back

27 Column Subtraction

28 How you can support your child  Look for and talk about numbers in the environment  Play games  Shopping  Counting on/back  Number bonds  Doubles/Halves  Time tables  Division facts

29 Websites

30 Thank you for coming & any questions?


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