Scaling is when something is transformed, through either shrinking or enlarging by a scale factor.

Repeated addition is when the same object or value is added to itself more than once.

The numerator is the number on the top of a fraction. It tells us how many parts we have/need.

The denominator is the number on the bottom of a fraction. It tells us how many parts the whole has been divided into.

Explain when a calculation represents scaling down and when it represents repeated addition

Maths

In this unit pupils will find unit and non-unit fractions of whole numbers and explore parts and wholes. In the future unit pupils will use representations to describe and compare two fractions. They will  explain the relationship within families of equivalent fractions and use their knowledge of common equivalents to compare fractions with decimals.

In the prior unit pupils multiplied an improper fraction and a mixed number by a whole number. In this unit pupils will find unit and non-unit fractions of whole numbers and explore parts and wholes.

Find unit and non-unit fractions of whole numbers exploring parts and wholes

Look at the equation. Complete the sentence with an appropriate word: The product will be {{ }} than the whole number.

Tick the descriptions that could best match this bar model.

Tick the expressions best solved using a scaling strategy.

Tick the expressions best solved using a repeated addition strategy.

Calculate $$ \frac{3}{7} $$ × 21 = {{ }}

Calculate $$ \frac{2}{5} $$ × 15 = {{ }}

Tick the equations that could represent this expression: 7 + 7 + 7

Tick the expressions that represent this image.

Tick the equation that represent this image.

Write in the missing number for this equation.  $$ \frac{3}{5} $$ × 20  = {{ }}

Calculate $$ \frac{4}{5} $$ × 20 = {{ }}

This lesson will soon be taken down.

Explain when a calculation represents scaling down and when it represents repeated addition

Lesson outcome