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Mastery for GCSE Edexcel

Unit 19: Circle theorems

Higher

19

Inside the Unit...

Areas Covered

  • Lesson 1: Circle theorems 1
  • Lesson 2: Circle theorems 2
  • Lesson 3: Angles in a circle
  • Lesson 4: Proofs of circle theorems 1
  • Lesson 5: Proofs of circle theorems 2
  • Lesson 6: Geometrical problems
  • Unit assessment

There are 6 exercise sheets and an examination-style assessment test, each with answers included in this unit.

Mathematics Mastery

Our resources apply the principles of Mastery throughout, creating a rich and deep learning experience. Find out more about Mastery with our quick guide.

Mathematics Mastery

Summary

This geometry unit focuses on the Circle Theorems; their discovery, proof, use and application to solving angle problems in circles.  The first two lessons are used to discover and define six Circle Theorems.  The approach to the teaching is dynamic to support understanding and encourage mastery.  In lesson 3 the Circle Theorems are used to find missing angles in circles and students are encouraged to communicate effectively when giving reasons for their answers.  In the second half of the unit, lessons 4 and 5 focus on developing and understanding the proofs for each of the Circle Theorems.  The unit concludes with students applying their learning to solve more complex geometrical problems on the coordinate axis using a variety of shapes, composite shapes, lines and angles.

What's included in the toolkit?

Teachers' Toolkit

The GCSE units have been written to satisfy the specification for the Edexcel 1MA1 Maths GCSE. Each unit contains:

  • PowerPoint slides for each component
  • Detailed lesson plans
  • Learning objectives and outcomes
  • Worksheets and homework activities with answers
  • End-of-unit, exam-style assessment test with answers
  • Other material and links to online resources

What people say...

“
”

The lessons were easy to use and fitted into the time available.

Tamsin Woolford. Mathematics teacher, Clayesmore School

“
”

The format and structure of material is logical and clear. I particularly enjoyed the inclusion of Exam Tips which offer students important advice for the examination. 

Declan Reel. Department of Design Technology, St Joseph’s High School

Relevant Textbooks

Inside the Unit...

  • Areas Covered

    • Lesson 1: Circle theorems 1
    • Lesson 2: Circle theorems 2
    • Lesson 3: Angles in a circle
    • Lesson 4: Proofs of circle theorems 1
    • Lesson 5: Proofs of circle theorems 2
    • Lesson 6: Geometrical problems
    • Unit assessment

    There are 6 exercise sheets and an examination-style assessment test, each with answers included in this unit.

    Mathematics Mastery

    Our resources apply the principles of Mastery throughout, creating a rich and deep learning experience. Find out more about Mastery with our quick guide.

    Mathematics Mastery

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