National Recycling Week - Using Maths To Reduce Contamination

National Recycling Week - Using Maths To Reduce Contamination

Lesson 2 of 2 in this unit

  • Secondary
  • Year 9 - 10
  • Mathematics
  • Environmental
  • Recycling
  • Sustainability
  • ...

Lesson 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.

Learning intentions:

Students will...

  • apply the use of mean, median, mode and outliner mathematical to data sets.

Lesson guides and printables

Lesson Plan
Student Worksheet
Teacher Content Info

Lesson details

Curriculum mapping

Australian Curriculum content descriptions:

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)

Resources required

  • Consider using a spreadsheet application


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

  • Critical thinking
  • Problem solving    

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. 

lesson saved in resources




More from this unit

See all
See all

Related content

Loading content...
Loading content...
Loading content...
Loading content...