New
New
Fieldwork: Presenting soil data
I can present soil texture data using creative techniques.
Lesson 9 of 13
New
New
- Year 8
Fieldwork: Presenting soil data
I can present soil texture data using creative techniques.
Lesson details
Key learning points
- Data made up of three parts can be shown on a triangular graph.
- Proportional shapes or symbols can be used to compare the size of data values.
- All forms of data presentation need to conform to particular standards and use conventions to make them readable.
Keywords
Proportional data - data that can be split up into constituent parts
Triangular graph - a graph with three axes used to display proportional data with three constituent parts
Proportional shape - a symbol on a map or in a graph that shows a value of data by the size at which it has been drawn
Common misconception
Proportional data can only be presented using a pie chart.
A pie chart is by far the most common method that geographers use, but any shape can be split into proportional sections.
If you have access to a visualizer, use this to structure and plot the points on a triangular graph in real time. This tricky skill is often easier to comprehend when it is modelled to students.
Teacher tip
Equipment
Triangular graph paper
Licence
This content is © Oak National Academy Limited (2025), 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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Prior knowledge starter quiz
6 Questions
Q1.Which of these is a sedimentary rock?
Which of these is a sedimentary rock?
Granite
Marble
Basalt
Q2.Match the process to its definition:
Match the process to its definition:
Q3.Rocks that form from cooled lava or magma are called rocks.
Rocks that form from cooled lava or magma are called rocks.
Q4.What causes physical weathering?
What causes physical weathering?
Acid rain
Plant roots
Wind carrying sand
Q5.Which material forms the base of soil?
Which material forms the base of soil?
Leaf litter
Air
Earthworms
Q6.Why are metamorphic rocks different from sedimentary rocks?
Why are metamorphic rocks different from sedimentary rocks?
They form in water
They contain fossils
They are softer
Assessment exit quiz
5 Questions
Q1.What is proportional data?
What is proportional data?
Data shown in a line graph
Data that includes only percentages
Data that must be measured in cm
Q2.Which of the following is a correct statement about proportional data?
Which of the following is a correct statement about proportional data?
It can only be shown using a pie chart
It must always be presented as a table
It does not help show parts of a whole
Q3.A triangular graph is used to present data with how many parts?
A triangular graph is used to present data with how many parts?
2
1
4
Q4.Which data set is suitable for a triangular graph?
Which data set is suitable for a triangular graph?
Temperature at 3 locations
Rainfall per month
Wind speed at one point
Q5.Why might you use a proportional symbol on a map?
Why might you use a proportional symbol on a map?
To make it colourful
To show the location of anomalies
To measure infiltration
