Lesson summary
Students design a survey of school waste bins (rubbish, recycling and composting) that estimates volumes of waste before and after lunch and estimate the percentage of contamination. They calculate the area the bins service by breaking up the area into squares and triangles.
Learning intentions:
Students will...
- calculate volumes and areas and use percentages to describe an issue.
Lesson guides and printables
Lesson details
Curriculum mapping
Australian Curriculum content descriptions:
Year 8 Mathematics:
- Choose appropriate units of measurement for area and volume and convert from one unit to another (ACMMG195)
- Solve problems involving the use of percentages, including percentage increases and decreases, with and without digital technologies (ACMNA187)
Resources required
- Metre rulers
- Measuring tapes or trundle wheels
- Tablet or clipboard and paper to record data
Skills
This lesson is designed to build students’ competencies in the following skills:
- Communication
- Community engagement
- Critical thinking
- Social skills
- Collaboration
Additional info
Planet Ark’s National Recycling Week started in 1996 to bring a national focus to the environmental benefits of recycling. This highly regarded annual campaign continues to educate and stimulate behaviour change by promoting kerbside, industrial and community recycling initiative. It also gives people the tools to minimise waste and manage material resources responsibly at home, work and school. In partnership with Planet Ark, we have developed lessons from early learning through to year 10 to help educators bring these important topics into the classroom.
National Recycling Week is held in the second week of November each year but you can recycle all year-round with these lessons which were designed to be used at any time. Click here to find out more about National Recycling Week and the Schools Recycle Right Challenge.
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