A pie chart is a circular graph where sectors represent different groups in proportion to each other.

A sector is a part, or ‘pie-slice’ part, of a pie chart.

Use understanding of angles, fractions and percentages to interpret pie charts

Maths

In this unit pupils will interpret and construct pie charts and line graphs and use these to solve problems. They will read scales in graphing and measures contexts linking to fractions, angles, percentages and understanding proportional relationships In the future unit pupils will learn how to calculate the mean of a set of data and use the mean to make comparisons between two sets of information

In the prior unit pupils explained what percent meant and how to represent a percentage in different ways. They learned how to convert percentages to decimals and fractions and solved conversion problems. In this unit pupils will interpret and construct pie charts and line graphs. They will read scales  linked to fractions angles percentages and understanding proportional relationships.

Statistics

Here is a pie chart. 16 children chose dogs as their favourite pet. How many children chose cats? {{ }} children

In the pie chart, the number of children that chose bowls and rugby is the same. 3 children chose rugby. How many children does the whole pie chart represent?

Izzy is using a protractor to draw a pie chart to show that one-third of Year 6 children walk to school. How many degrees will that sector measure on the pie chart?

This pie chart shows the ways in which children in Year 6 at Oak Primary School travelled to school last week. What percentage of children travelled by bike? {{ }}%

There are 300 children at Oak Academy. This pie chart shows how the Key Stage 2 children travelled to school last week. Match the correct number of children to the method of travel. 

The pie chart shows the lunches chosen by 180 children at Oak Primary School.  Twice as many children chose pizza as chose fish. How many children chose fish? {{ }} children.

There were some minibeasts in the garden. Half of them were ants and one quarter of them were ladybirds. There were 12 ants. How many ladybirds were there?

Izzy has 48 stickers. She sticks 12 stickers in her book. What percentage of the stickers are not stuck in the book? {{ }}%

A cake is cut into pieces. Jun eats 50%, Izzy eats 12% and Jacob eats twice as much as Izzy. What percentage of the cake is left? {{ }} %

In a farmyard, $${1} \over {2}$$  the animals were cows, $${1} \over {4}$$ were sheep and the rest were an equal number of pigs and horses. There were 6 pigs. How many animals were in the farmyard?

A necklace uses 36 beads in 4 colours. Half the beads are red, $${1} \over {4}$$ are blue and the rest are either green or yellow. There is one more green than yellow. How many green beads?

60 Year 6 children were choosing Leavers’ Hoodies. 20% chose a red hoodie, 25% chose a blue hoodie and the rest chose a grey hoodie. Which of the following statements are true?

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