Mathematics Mastery Primary from Ark Curriculum Plus featuring a full curriculum, CPD and resources for planning, classroom delivery and assessment Ark Curriculum+
‘Those Who Can, Teach: What it Takes to Make the Next Generation’ by Andria Zafirakou Bloomsbury Publishing
Bring maths learning to life in your school with Learning Resources Learning Resources
Key considerations when planning a new school washroom T-IPS Washrooms
Oxford Revise: A Level Sciences – The ultimate evidence-based revision guides ensuring maximum learning gains Oxford University Press
Oxford University Press Courses
KS3 Maths Lesson Plan – Understand the Formulae...
Download your FREE resource here! KS3 Maths Lesson Plan – Understand the Formulae...
slideshow: image
Students need to understand the reasons behind the formulae for the area of different quadrilaterals, says Colin Foster…
In this lesson, students will explore ways of calculating the areas of different quadrilaterals, beginning with parallelograms as the key shape, leading to triangles (as half a parallelogram) and squares and rectangles (as special parallelograms).
Finally, they will look at trapezia, which, like parallelograms, can also be thought of as formed from two triangles, but in this case the triangles are not congruent.
The aim of the lesson is to give students a sound feeling for area, as opposed to simply memorising formulae.
Understanding area is critical to doing geometry
Derive and apply formulae to calculate and solve problems involving area of trapezia
In partnership with
Make sure your assessment is effective with these expert insights.
Welcome, enter your email to get your FREE resource download!
Welcome back! Please login to get your FREE resource download!
You have not yet activated your account. Please check your email (and spam folder) for an activation email from us.
Thanks! Please enter a password to sign up and get your FREE resource download!
Passwords must be at least 8 characters and contain 1 or more capital letters and numbers
