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reSolve: Area of a circle

Teacher guide reSolve: Area of a circle

TLF ID M021070

This lesson explores the formula for calculating the area of a circle. Students estimate the area of a circle using inscribed and circumscribed squares, and investigate proofs of the area formula. Each lesson is outlined in detail including curriculum links, vocabulary, materials needed, sample answers, supporting PowerPoint presentations, discussion points and student resources. This sequence is part of the reSolve: Maths by Inquiry program.

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Educational details

Educational value
  • This resource is extremely valuable for the year 8 mathematics content description about features of circles and using formulae to solve problems involving circle area. Students are engaged in a range of activities to build their understanding of the circle area formula, including estimation, proofs and open-ended problem solving.
  • This resource also offers opportunities to link to the Numeracy General capability, as it engages students in visualising, describing and applying their understanding of the features and properties of 2D shapes.
Year level

8

Topics Area Square metres Metres Circumference Radius Diameter pi Sectors (Circles)
Learning area
  • Mathematics

Other details

Contributors
  • Contributor
  • Name: Education Services Australia
  • Organization: Education Services Australia
  • Description: Data manager
  • Address: VIC, AUSTRALIA
  • URL: http://www.esa.edu.au/
  • Copyright Holder
  • Name: Australian Government Department of Education and Training
  • Organization: Australian Government Department of Education and Training
  • Publisher
  • Name: Australian Academy of Science
  • Organization: Australian Academy of Science
  • Description: Publisher
  • URL: https://www.science.org.au/
  • Resource metadata contributed by
  • Name: Education Services Australia Ltd
  • Organisation: Education Services Australia Ltd
  • Address: AUSTRALIA
  • URL: www.esa.edu.au
Access profile
  • Unknown
Learning Resource Type
  • Online
Rights
  • © Australian Government Department of Education and Training 2017. Unless otherwise indicated, this material may be used in accordance with the Creative Commons Attribution 4.0 International (CC BY 4.0) licence.