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

A pie chart (pie graph) is a circular graph where sectors represent different groups proportionally.

A scatter graph is a visual representation for bivariate data. It can help determine the nature of the relationship between the variables.

Problem solving with graphical representations of data

Maths

Checking understanding of pictograms and bar charts

Securing constructing pictograms

Securing constructing bar charts by hand

Constructing bar charts by utilising technology

Constructing pie charts

Constructing pie charts by utilising technology

Interpreting pie charts

Constructing scatter graphs

Constructing scatter graphs by utilising technology

Interpreting scatter graphs

In this unit, pupils explore different graphs and charts as a way of presenting data visually. Pupils are introduced to scatter graphs and learn how to construct them in this unit. In the future unit, this understanding is extended to using a line of best fit to allow interpolation

In this unit, pupils interpreted and constructed pie charts based on their understanding of fractions and proportion

In this unit pupils will interpret and construct a range of representations of data including bar charts, pie charts and scatter graphs.

Graphical representations of data

Which two population pyramids show cases where the number of male and female residents is approximately equal?

Which population pyramid shows the population whose largest age group is 30 to 34 year-olds?

The graphs show average temperature in three towns for each month of the year. Which town is the warmest?

The graph show the maximum temperature of a town for each month of the year. What was the maximum temperature in April?

The graph show the maximum temperature of a town for each month of the year. Which town has a mean temperature of 16 degrees Celsius in July?

The graph show the maximum temperature of a town for each month of the year.  The mean temperature for Town A in September is {{ }} degrees Celsius.

Which type of graph uses pictures of objects to visually represent the frequency of objects or groups.

Which is a circular graph where sectors represent different groups proportionally?

The {{ }} is the number of times an event occurs or the number of individuals (people, animals etc.) with some specific property. 

Look at the bar chart. How many countries has Laura visited?

Look at the bar chart. Which is the most common mode of travel for pupils in Year 10?

Look at the line graph. What is the distance at 20 seconds?

Problem solving with graphical representations of data

Lesson outcome