Lesson summary
Introduce the concept of ratios to students through an environmental context. Students calculate the rates of carbon sequestration of ‘blue carbon’ methods compared as a ratio to traditional ‘green’ tree forests on land. They perform a number of calculations to prove their understanding.
Learning intentions:
Students will...
- be able to solve practical problems involving ratios
- demonstrate the efficiency of 'blue' carbon sources over 'green' carbon sources.
Success criteria:
Students can...
- accurately use ratios to compare blue and green carbon sequestration rates.
Lesson guides and printables
Lesson details
Curriculum mapping
Australian curriculum content descriptions:
Year 7 Mathematics:
- Recognise, represent and solve problems involving ratios (AC9M7N08)
Syllabus outcomes: MA4-7NA
General capabilities: Numeracy, Critical and Creative Thinking
Cross-curriculum priority: Sustainability
Relevant parts of Year 7 Mathematics achievement standards: Students use mathematical modelling to solve practical problems involving rational numbers, percentages and ratios, in financial and other applied contexts, justifying choices of representation.
Level of teacher scaffolding: Low – support students in their understanding and independent work.
Resources required
- Student Worksheets – one copy per student
- Whiteboard
Skills
This lesson is designed to build students’ competencies in the following skills:
- Communication
- Global citizenship
Additional info
Cool would like to thank the Lord Mayor’s Charitable Foundation and The Vincent Fairfax Family Foundation for generously supporting the development of these lessons.
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