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.
- calculate volumes and areas and use percentages to describe an issue.
Lesson guides and printables
Australian Curriculum content descriptions:
Year 8 Mathematics:
- Metre rulers
- Measuring tapes or trundle wheels
- Tablet or clipboard and paper to record data
This lesson is designed to build students’ competencies in the following skills:
- Community engagement
- Critical thinking
- Social skills
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.