Recognise the equivalence of 2/4 and 1/2
I can recognise and explain the equivalence of one-half and two-quarters.
Recognise the equivalence of 2/4 and 1/2
I can recognise and explain the equivalence of one-half and two-quarters.
Lesson details
Key learning points
- When a whole is divided in half, there are 2 equal parts.
- When a whole is divided into quarters, there are 4 equal parts.
- Two-quarters and one-half are equivalent because they describe the same amount when the wholes are the same size.
Common misconception
Children may initially think that two quarters is larger than one-half because the numerals in the fraction are larger.
Try to avoid introducing the fractions in numeral form until children are familiar with recognising two-quarters in different representations such as shapes and small sets. Support understanding with stem sentences as modelled in this lesson.
Keywords
One-half - 1 of 2 equal parts of a whole.
Two-quarters - 2 of 4 equal parts of a whole.
Equivalent - When two or more things have the same value.
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
Loading...
Starter quiz
6 Questions
$$ \frac{1}{2} $$ of 20 = -
10
$$ \frac{1}{2} $$ of 18 = -
9
$$ \frac{1}{2} $$ of 12 = -
6
$$ \frac{1}{2} $$ of 16 = -
8
$$ \frac{1}{2} $$ of 14 = -
7
Double 4 = 8 -
Half of 8 = 4
Double 7 = 14 -
Half of 14 = 7
Double 5 = 10 -
Half of 10 = 5
Double 10 = 20 -
Half of 20 = 10
Whole -
20
$$ \frac{1}{4} $$ -
5
$$ \frac{3}{4} $$ -
15
$$ \frac{1}{4} $$ is -
3
$$ \frac{2}{4} $$ is -
6
$$ \frac{3}{4} $$ is -
9
$$ \frac{4}{4} $$ is -
12
Exit quiz
6 Questions
A -
$$ \frac{3}{4} $$
B -
$$ \frac{2}{4} $$
C -
$$ \frac{1}{4} $$
D -
$$ \frac{4}{4} $$
$$ \frac{1}{4} $$ of 12 = -
3
$$ \frac{2}{4} $$ of 12 = -
6
$$ \frac{3}{4} $$ of 12 = -
9
$$ \frac{4}{4} $$ of 12 = -
12
