What’s Involved in Becoming an OCR Examiner – and Why Should you Consider it? OCR
5 Reasons to Become an Examiner with WJEC Eduqas WJEC Eduqas
Browns Books for Students Brings First-Class Library Access on the Road with The Book Bus Browns Books for Students
Make the Most of the Summer with a Personal Holiday Recommendation that’s Perfect for Teachers Simpson Travel
Enter Aldi and Team GB’s ‘Design a Bag’ Competition Aldi
Teach Early Years Magazine Subscribe today!
Teach Primary Magazine Subscribe today!
Teach Secondary Magazine Subscribe today!
Technology and Innovation Magazine Order now!
Teach Reading and Writing Magazine Order now!
Oxford University Press Courses
Not yet registered? Click here it takes seconds to sign up
already registered? Click here
Already a member? click here
Quadratic expressions are considerably more complicated to work with than linear expressions, and students often find them hard to handle.
Students may carry out factorising of quadratics by applying poorly-understood procedures that make little mathematical sense to them, and this can be especially so when it comes to non-monic quadratics (those where the coefficient of x2 is not 1).
In this lesson, students approach factorising non-monic quadratics by trying to find factorisations which will expand and simplify to produce a quadratic expression of a specified form.
This entails lots of useful practice at expanding pairs of brackets and collecting like terms, and also gives opportunity for students to unpick what is going on, so as to gain insight into how the inverse process of factorising works.
By working backwards in this way to obtain the necessary factors, students build a deeper understanding of factorising quadratics.
Zip file containing:
For more KS4 maths lesson plans from Colin Foster click here.