# Use knowledge of the divisibility rules for divisors of 2 and 4 to solve problems

I can solve problems using knowledge of the divisibility rules for 2 and 4

# Use knowledge of the divisibility rules for divisors of 2 and 4 to solve problems

I can solve problems using knowledge of the divisibility rules for 2 and 4

## Slide deck

## Lesson details

### Key learning points

- If you can halve a number then it must be a multiple of 2 and divisible by 2
- If you can halve a number and halve again then it must be a multiple 4 and divisible by 4
- If a number is divisible by 4 then it must be divisible by 2

### Common misconception

Lack of fluency in 2s and 4s times tables and not understanding the divisibility rules or the problems.

To clearly model highlighting key words of worded problems to understand the problem and the operation required for the calculation. Continue to use language stems such as 'If I know...' 'Then I know...,' to support mathematical thinking.

### Keywords

Divisibility - Divisibility is when division of a number results in another whole number.

Divisor - A divisor is a number that divides the integer exactly (no remainder).

Multiple - A multiple is the result of multiplying a number by another whole number.

Half / halve - A half is one of two equal parts of a whole.

### Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

## Video

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## Worksheet

## Starter quiz

### 6 Questions

40

56

72

48

64

48

56

72

## Exit quiz

### 6 Questions

6 groups of 4

4 groups of 4

8 groups of 4

10 groups of 4

Divisible by 2 only

Divisible by 2 and 4

Divisible by 2 only

Divisible by 2 and 4

Not divisible by 2 or 4