Visy Education - Waste to Energy

Australian curriculum content descriptions:

Year 7 Maths:

• Find percentages of quantities and express one quantity as a percentage of another, with and without digital technologies (ACMNA158).
• Investigate, interpret and analyse graphs from authentic data (ACMNA180).

Year 8 Maths:

• Solve problems involving the use of percentages, including percentage increases and decreases, with and without digital technologies (ACMNA187).
• Solve a range of problems involving rates and ratios, with and without digital technologies (ACMNA188).

Year 9 Maths:

• Solve problems involving direct proportion. Explore the relationship between graphs and equations corresponding to simple rate problems (ACMNA208).
• Additional – Express numbers in scientific notation (ACMNA210).

General capabilities: Numeracy, Critical and creative thinking, Ethical understanding.

Cross-curriculum priority: Sustainability OI.8.

Relevant parts of Year 7 Mathematics achievement standards: Students solve problems involving percentages and all four operations with fractions and decimals. They interpret simple linear representations and model authentic information.

Relevant parts of Year 8 Mathematics achievement standards: Students solve everyday problems involving rates, ratios and percentages.

Relevant parts of Year 9 Mathematics achievement standards: Students interpret ratio and scale factors in similar figures. They apply the index laws to numbers and express numbers in scientific notation.

Unit of work: Visy Education – Secondary Mathematics.

Time required: 75 mins.

Level of teacher scaffolding: Medium – the teacher will need to provide context and scaffolding where necessary and lead the investigation.

• Student Worksheets (one per student)
• Device capable of projecting images to the class
• Next 20 Years – Waste Production Graph
• Energy From Waste Graph 1
• Energy From Waste Graph 2
• Energy Flowchart

This lesson is designed to build students’ competencies in the following skills:

• Critical thinking
• Global citizenship
• Problem solving
• Social skills

This lesson has been developed in partnership with Visy. For over 70 years Visy has been committed to finding sustainable solutions for Australia and New Zealand’s recyclables and helping to reduce local landfills. Visy collects, receives and sorts paper, cardboard, glass, plastics, steel and aluminium from households, businesses and schools with the purpose of reusing these products in the re-manufacture of new packaging products.