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Interactive Lessons

Expanding Brackets and Collecting Like Terms

Students learn how to find the sum and difference of two algebraic expressions by expanding brackets.  Learning ...
Interactive Lessons
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Expanding Cubic Expressions

Students learn how to write the product of three binomials by expanding a cubic expression. Learning progresses ...

Exterior Angles of Polygons

Progressing on from finding angles in parallel lines students in Year 8 learn how to calculate the exterior angl...

Factor Pairs of Numbers and Terms

Students learn how to find all the factor pairs of numbers and terms.  More able are taught to find the factors ...

Factorising Expressions into a Pair of Brackets

Students learn how to factorise an algebraic expression into a pair of brackets using the highest common factor....

Factorising Expressions with Powers

Students learn how to factorise expressions with powers by taking out the highest common factor.  As learning pr...

Finding any length of a Right-Angled Triangle

Key stage 3 mathematics for using Pythagoras' Theorem to calculate any length of a right-angled triangle.   Lea...

Finding Prime Factors

Finding Prime Factors Students learn about finding prime factors of a number.  This lesson builds on understand...

Finding Prime Numbers

Students learn about finding prime numbers using factor pairs and the Sieve of Eratosthenes.  Throughout the les...

Finding the Area of a Triangle

Finding the Area of a Triangle Students practice finding the area of a triangle.  As the lesson progresses stud...

Finding the Highest Common Factor

Students learn about finding the highest common factor of numbers and terms.  More able student learn how to fin...

Form and Solve Quadratic Equations

Students learn how to form and solve quadratic equations from geometry problems.  Problems include finding the a...