New
New
Year 8

Securing constructing bar charts by hand

I can construct bar charts from data.

New
New
Year 8

Securing constructing bar charts by hand

I can construct bar charts from data.

Lesson details

Key learning points

  1. Data presented as a list can be represented as a bar chart
  2. Data presented in a table can be represented as a bar chart
  3. The type of data determines how the bars should be drawn

Keywords

  • Frequency - The frequency is the number of times an event occurs; or the number of individuals (people, animals etc.) with some specific property.

  • Bar chart - A bar chart (bar graph) is a graph consisting of bars visually representing the frequency of objects or groups.

  • Data - Data are a collection of information.

Common misconception

Pupils may label the vertical axis with the frequency values rather than a scale.

Remind the pupils that the scale should go up in the same jumps. i.e. 0, 5, 10, 15 etc and have them check theirs.

If your pupils showed good understanding of bar charts from lesson 1 of this unit, then you may wish to skip this lesson.
Teacher tip

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).

Lesson video

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6 Questions

Q1.
Rectangle is the longest.
An image in a quiz
Correct Answer: B, b
Q2.
These tally marks show a value of .
An image in a quiz
Correct Answer: 6, six, Six
Q3.
Which of these numbers are multiples of 15?
Correct answer: 30
Correct answer: 75
95
130
Q4.
A pictogram (pictograph) is a graph consisting of pictures to visually represent the of objects or groups. 
Correct Answer: frequency
Q5.
Select the frequency table that has a total frequency of 46.
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz
Q6.
Some things are measured and some are counted. Which of these are counted?
heights of a group of people
Correct answer: number of cars that drive past
Correct answer: photographs with an elephant on them
weights of some pet dogs
Correct answer: number of odd socks

6 Questions

Q1.
The total frequency for this data set is .
An image in a quiz
Correct Answer: 16, sixteen
Q2.
If a bar chart was to be constructed for data about favourite pizza toppings in a class, the bars would have a specific order. True or false?
True - order from the most favourite to the least favourite topping
Correct answer: False - there is no relevant order to pizza toppings so they can be in any order
Q3.
This is an example of a __________ bar chart.
An image in a quiz
standard
Correct answer: comparison
stacked
Q4.
The frequency axis needs to have a suitable scale for the data it is presenting. The scale will go up in increments.
Correct Answer: equal
Q5.
Three pupils are discussing this bar chart. Who is correct with their observation?
An image in a quiz
An image in a quiz
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz
Q6.
Which bar chart matches this data?
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz
An image in a quiz