## Curriculum support•25 mins•£2

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Key takeaways
Understand what is meant by the coefficient of x².
Expand brackets to check if the factorisation was correct.
Host: Shahriyar is a Maths Teacher at a School in Northwest London, teaching years 7 to 11. He graduated from the University of Warwick in 2013 and set off to China for two years teaching IGCSE and A-Level Economics.

Quadratic expressions can be written in the form ax²+bx+c, where a, b, and c are numbers. When factoring quadratic where x² has a coefficient of 1, students simply need to think of two numbers that add to give the coefficient of x and multiply to give c. This method will not work when factorising quadratics where the coefficient of x² is greater than 1, therefore students will learn to apply a new procedure to factorise such quadratics.

In this class, students will understand what is meant by the coefficient of x², how to factorise quadratics using number manipulations, and how to expand brackets to check if the factorisation was correct. This class is aimed at Years 9 - 11.

Review these topics next: Solving Linear Equations (High Difficulty)Changing the Subject of a Formula (Advanced)Advanced Trigonometry

Safeguarding reminder:The safety of your child is of the utmost importance. All of our classes are pre-recorded to remove any concerns around live participation. For reruns of our past live classes, students' webcams and microphones were disabled and only the chat history, if participation was requested, is visible.

Suitable for:

This class is suitable for students in Years 9 -11.

Class requirements:
You will need a laptop or device with internet connection to watch the class, as well as a pen and notepad for taking notes.
What to expect:
• This class will take place online via a Zoom webinar.
• For live classes, please arrive promptly. Students' cameras and microphones are disabled by default.
• For on demand classes, students will be watching a recording of a previous live class.
• Once you have signed up, you will be taken to your dashboard where you can view details of the class, and re-watch it in the future.
• Students will be sent confirmation of the class to their email address if provided.

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