Quick Summary: Students will investigate the levels of CO2 in the air from Cape Grim, one of the cleanest sources of air in the world. Using authentic data they will analyse a graph and plot data points on a set of axis. After students have plotted their own graphs they will consider the historic trends and comment on what they think will happen in the future. They will also have the opportunity to investigate another greenhouse gas (GHG) observed at Cape Grim and use this to comment of the levels in more populated areas.
- Students understand how to read data from a graph.
- Students know how to plot coordinate points onto a Cartesian plane.
- Students discover the impact of air pollution on a global scale and how the levels of greenhouse gas are changing over time.
- Students take personal action to reduce their own greenhouse gas emissions.
General capabilities: Numeracy, Critical and creative thinking.
Australian Curriculum content description:
Year 7 Mathematics:
- Given coordinates, plot points on the Cartesian plane, and find coordinates for a given point (ACMNA178)
- Investigate, interpret and analyse graphs from authentic data (ACMNA180)
In line with the Australian Curriculum questions are graded to cover understanding, fluency, problem solving and reasoning.
Topic: Number and Algebra: Linear and non-linear relationships, climate change
Time required: 40-60 min
Level of teacher scaffolding: Low/Medium – teacher may need to demonstrate some calculations.
Resources Required: Student Worksheet, internet access, Climate Change Digital Toolbox.
Homework and extension opportunities: Students will research another GHG and compare it with the changes they observed in CO2 levels.
Further activities: this activity can be completed as a stand alone lesson or as a part of a series with ‘The stats on the source of the world cleanest air – Year 7′
Key words: Graph, Cartesian plane, plotting, coordinate points, data, greenhouse gas, climate change, carbon emissions.
Cool Australia’s curriculum team continually reviews and refines our resources to be in line with changes to the Australian Curriculum.