KS1 Math What we learn and our methods of teaching

KS1 MathsWhat we learn and our methods of teaching

What do we teach in KS1 Maths?Number bonds from 10 and 20 ( ie 7+3=10, 18+2= 20)Basic multiplication ( 2,5,10)Basic division ( 2)Fractions ( , , 1/3 )Addition and subtraction to 100Place value ( units, tens and hundreds)Time ( oclock, half past, quarter to, quarter past)Measurement ( weight, length, capacity)Money ( everyday money- calculating change)Problem solvingHandling data ( graphs, tables, sorting data)Shape and spaceToday we will focus on multiplication and division

3Maths when do we use it?

Division

445Division vocabulary share share equally divide divided by groups halve half

Sharing objectsShare these six biscuits between three teddies.How many biscuits does each teddy get?

Linking with halving and quartering shapesSplitting into equal groups/parts

Using tens and units to solve division problems

4848 2 = 24 12 4 = 3 15 3 = 5 Division as grouping

Can you group these cookies into groups of 3?How much does each teddy get?

Division as grouping Repeated Addition15 3 = 5 + 3 + 3 + 3 + 3 + 3

0 3 6 9 12 15

Arrays as a tool for solving answers18 6 = 318 3 = 6

Link with multiplicationRemainders13 4 = 3r1 13 4 = 3r1 + 4 + 4 + 4 +1

0 4 8 12 13 13So how can you work out a division calculation using times tables?

Count in 2s until you get to 16.2 4 6 8 10 12 14 1614Division using an empty number lineHow many groups of 5 are there in 25?25 5 = 5

5 5 5 5 50 5 10 15 20 25

Resources to help children with division

16Your 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 5 5 5 5 50 5 10 15 20 25 306 groups of 5 make 30. So 6 teams.

16Multiplication

171718Multiplication

Counting in 10s

19MultiplicationCounting in 2s

20MultiplicationCounting in 5s

21Multiplication 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. Secure in Year 3.

22MultiplicationProblem solving

There are 10 pencils in a pack.

How many pencils are there in 4 packs?

Repeated addition

10 + 10 + 10 + 10 = 4023Multiplication3 times 5 is the same as 5 + 5 + 5 = 15 or 3 lots of 5 or 3 x 5

On a number line05101555524MultiplicationAs an array3 x 5 = 155 x 3 = 15Across the corridor and down the stairs!25Problem solvingEllas 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 couldwork one or both of these out?Resources to help children with multiplication

Practical mathsMaking maths practical by using real materials. Try some of these at home with your child.

Using coins using food

Using measuring cups

cooking

28http://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

Useful websites