KS1 MathsWhat we learn and methods we use

What do we teach in KS1 Maths?• Place value (hundreds, tens and units/ones)• Addition and subtraction• Multiplication (2, 5, 10)• Division• Number bonds from 10 and 20 ( i.e. 7+3=10,

18+2=20)• Time (o’clock, half past, quarter to, quarter past)• Measurement (weight/mass, length, capacity)• Money (everyday money- calculating change)• Problem solving• Handling data (graphing, tables, sorting data)• Shape and space

Today we will focus on the red highlighted examples

Resources

Number line

100 squareCounters

Interactive computer resourcesPlace value

cards

Numicon

Dienes

Beadstrings

Place Value

We use place value cards, and numicon or dienes to help understand the value of each digit in a number.

Addition - Year 1 Addition can be done in any order - use practical

resources and numberlines to count on from the largest number to find a total.

5 + 2 = 7 _____________________________________ 0 1 2 3 4 5 6 7 8 9 Use equipment and think about number facts e.g

pairs of numbers to make 10. 8 + 4 = 12

+1

+1

+2

+2

8

Addition - Year 2 Use knowledge of place value to partition numbers intotens and units – using practical equipment and

numberlines. 25 + 33= 58Step 1: partition numbers (tens 20 + 30) (units 5+3)

Step 2: add up the tens (20 + 30 = 50)Step 3: add up the units/ones (5+ 3 = 8)Step 4: add both

Begin to use empty numberlines starting with the largest number and count on in tens and ones.

34 + 23 = 57

___________________________________ 34 44 54 55 56 57

+10

+10 +1+

1+1

Subtraction - Year 1 Subtraction as taking away – children use moveable objects to physically take away and count the number of objects left.

8 – 3 = 5

Subtraction as counting back when subtracting small numbers.

8 – 3 = 5

Subtraction as finding the difference.

_____________________________________ 0 1 2 3 4 5 6 7 8 9

Subtraction – Year 2 Subtraction as counting back using number facts and a

numberline. 20 – 7 = 13

Subtraction as finding the difference on a numberline. 20 – 16 = 4 _____________________________________ 11 12 13 14 15 16 17 18 19 20

_____________________________________ 11 12 13 14 15 16 17 18 19 20

-5-2

Multiplication/Division –Year 1Laying the foundations for multiplication and

division by counting and looking for patterns.

Counting in 2s, 5s and 10s using images and numberlines.

Using the 100 square to look for patterns when counting in 2s, 5s and 10s.

Multiplication – Year 2As an array

As repeated addition

They will also learn to recite times tables alongside images.

2 x 6 = 12

6 x 2 = 12

5 × 3 = 5 + 5 + 5

3 x 5 = 3 + 3 + 3 + 3 + 3

Division – Year 2

Division by sharing6 shared equally between 2 groups.

Division by grouping6 divided into groups of 2