Checking understanding of pie charts | Maths | Quizalize & Oak National Academy

Starter quiz

Match the descriptions for amounts of rotation with the number of degrees each is equivalent to.

an eighth of a turn

⇔

45° ✓

a quarter turn

⇔

90° ✓

a three-eighth turn

⇔

135° ✓

a half turn

⇔

180° ✓

a three-quarter turn

⇔

270° ✓

a seven-eighth turn

⇔

315° ✓
Find ${3}\over{5}$ of 40

'24' ✓
If 4 tennis balls cost £3, then how much would 24 tennis balls cost? Make sure to include units in your answer.

'£18' ✓
If 5 footballs cost £35, then how much would 8 footballs cost?

£40

£45

£48

£56 ✓
If 80 table tennis balls cost £22, then how many table tennis balls would cost £3?

10

15

16

20

There would be a non-integer number of table tennis balls. ✓
Sofia and Lucas both purchase books at a secondhand bookstore to donate to their school. Each book costs the same amount. How much more, in pounds, did Lucas spend on books?

'£5' ✓

Exit quiz

The table shows the number of people at Location 1 and their preferred way to cook potatoes. Calculate the size of the angle for roasted potatoes.

72

120 ✓

146

201
The table shows the number of people at Location 1 and their preferred way to cook potatoes. Calculate the size of the angle for mashed potatoes.

'201' ✓
Below are correctly drawn pie charts showing the preferred cooking methods for potatoes for people at Locations 4 and 5. Select the statements that may not be true.

The same number of people (25 people) voted for boiled at both Locations 4 and 5 ✓

The same percentage of people (25%) voted for boiled at both Locations 4 and 5

A greater number of people voted for roasted in Location 5 than Location 4 ✓

A greater proportion of people voted for roasted in Location 5 than Location 4

The same number of people voted in Locations 4 and 5 ✓
True or false? A protractor with a maximum angle of 180° cannot be used to draw an angle bigger than 180°.

True. The maximum angle that can be drawn is 180°.

True. The range of values is from 0 to 180.

False. You can split the angle into 180° plus the remaining angle. ✓

False. You can draw any angle without any additional work required.
In which school did more pupils walk to school?

Oakfield academy.

Rowanwood school.

You cannot tell. ✓

Neither - they have the same number of pupils who walk to school.
300 pupils walk to Rowanwood school. If one quarter of the 400 pupils who attend Oakfield don't walk to school, which school has more pupils that walk to it?

Oakfield academy.

Rowanwood school.

You cannot tell.

Neither - they have the same number of pupils who walk to school. ✓

Worksheet

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Video

Lesson Details

Key learning points

Certain data is suitable for a pie chart.
The shape of the chart can be estimated from the data.
For larger data sets, technology can make constructing charts quicker.

Common misconception

A bigger sector on one pie chart compared to another means a larger frequency.

Pie charts show proportion, but tell nothing about frequency. The total frequency of one pie chart could be significantly larger or smaller than the other pie chart.

Keywords

Sector - A sector is the region formed between two radii and their connecting arc.
Pie chart - A pie chart (pie graph) is a circular graph where sectors represent different groups proportionally.