Year level: 9

Strand: Statistics

Lesson length: 75 mins

Students explore the notion of reconciliation in Australia analysing a report – Reconciliation Australia’s Australian Reconciliation Barometer to answer an inquiry question for their statistical investigation.

This lesson was developed in collaboration with Caty Morris and Aboriginal and Torres Strait Islander Mathematics Alliance (ATSIMA).

Reconciliation progress Image

Achievement standard

Students compare and analyse the distributions of multiple numerical data sets, choose representations, describe features of these data sets using summary statistics and the shape of distributions, and consider the effect of outliers.

Content descriptions

Students plan and conduct statistical investigations involving the collection and analysis of different kinds of data; report findings and discuss the strength of evidence to support any conclusions (AC9M9ST05

General capabilities


  • Interpreting and representing data (Level 8)

Digital literacy

Critical and Creative Thinking

  • Develop questions (Level 6)
  • Identify, process and evaluate information (Level 6)
  • Interpret concepts and problems (Level 6)
  • Draw conclusions and provide reasons (Level 6)

Ethical understanding

Cross-curriculum priority

Aboriginal and Torres Strait Islander Histories and Cultures  (A_TSIP1)

Create an infographic

  • Provide students with a relevant digital infographic creation tool such as Canva (Education version).
  • As a group students use their collated information and supporting statistics to back up their claim.
  • Assess students proficiency in describing features of their data sets and use of summary statistics.

Prior to this lesson, it is assumed that students:

  • have an understanding of the term reconciliation
  • can interpret data represented in tables and charts
  • use a range of data visualisations such as 100% stacked bar charts
  • have familiarity with spreadsheet software and creating charts.

Provide students with the Reconciliation Student Toolkit for students who are new to the concept of reconciliation. The guide within the toolkit will help to support the prerequisite/assumed knowledge and the success criteria around knowing how they can get involved.

Some students may:

  • not understand what reconciliation is or its complexity
  • have limited use or familiarity with spreadsheet software such as Excel for Word or Numbers for for iOS and macOS
  • not understand differences in data, data representations and how they can be successfully compared and analysed to draw conclusions.

What you need:

  • Lesson plan (Word)

  • Teacher's slides (PowerPoint)

  • Sample spreadsheet (Excel)

  • Access to internet and computers or devices with spreadsheeting software