Quick summary: Students will analyse recycling and contamination data. They will use mean, median, mode and outliner mathematical concepts and identify when each of these can help in an analyses. Students will examine recycling in EU countries, a school waste survey and a council recycling contamination reduction program. They will produce a postcard to help people avoid contaminating the recycling.
This lesson has been developed as part of the Schools Recycle Right Challenge for Planet Ark’s National Recycling Week. Register your lesson or other activities so they can be counted towards the national achievement and to receive other free support materials.
Learning goals for this activity include: Apply the use of mean, median, mode and outliner mathematical to data sets.
Australian Curriculum Content Descriptors:
Year 9 Mathematics:
- Compare data displays using mean, median and range to describe and interpret numerical datasets in terms of location (centre) and spread (ACMSP283)
Time needed: 120 min
Level of teacher scaffolding: Medium – discuss why some of the different concepts help us understand a problem.
Resources needed: Consider using a spreadsheet application.
Digital technology opportunities: Video and spreadsheets.
There’s an app for that: iRecycle: iRecycle provides access to more than 1,600,000 ways torecycle over 350 materials.
Assumed prior learning: Sorting waste into rubbish, recycling, reusing and composting, familiar with applying percentage.
Key words: Contamination, recycling, mean, median, mode and outliner.
Cool Australia’s curriculum team continually reviews and refines our resources to be in line with changes to the Australian Curriculum.