Rationalising the denominator (Binomials) - lesson bundle

This lesson is designed to help GCSE pupils learn about rationalising the denominator with two terms as the denominator. This is a complete lesson that includes a wealth of resources whilst maintaining a high standard of work. The lesson is suitable for all abilities and offers both accessibility and challenge.

This resource goes back through rationalising the denominator with one term as the denominator. The method taught in this lesson is the conjugate special 1. The lesson offers plenty of time for AfL and for the students to reflect. Exam questions, cross topic exposure and problem solvers also included.

Lesson includes

Title, date, objective, success criteria, key words
Teacher Guide
Student worksheet
Lesson plan (QTS and NQT ready)
Discussion task
Definitions and examples
AfL Diagnostic questions
Differentiated questions and solutions
Accessible for lower ability and challenge high ability
Exam style questions (GCSE- A level) and mark scheme run through.
Cross-topic exposure
Problem solvers -one topic based, one random.
Plenary - Mathematical reasoning
Please review and follow
Homework sheet included

For more resources: www.blacksmithmaths.co.uk

Save for later
  • Lesson-plan---Rationalising-the-denominator-(Binomials).docx
  • Rationalising-the-denominator-(Binomials)--worksheet.docx
  • Rationalising-the-denominator-(Binomials)--worksheet.pdf
  • U01.3---H3---Surds-homework.docx
  • U01.3---L08---Conjugate-rationalising-the-denominator.pptx

About this resource


Created: May 2, 2018

Updated: Oct 28, 2020

docx, 24 KB


docx, 145 KB


pdf, 243 KB


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