Cognito logo

Maths Lessons

GCSE Maths - Edexcel IGCSE Higher

Upgrade to Pro to resume latest lesson

Contents

Topic 1 - Numbers

Topic 2 - Algebra

Topic 3 - Graphs, Functions and Calculus

Topic 4 - Geometry and Measure

Topic 5 - Pythagoras and Trigonometry

Topic 6 - Statistics and Probability

Topic 2 - Algebra

2.1 - Introduction To Powers & Roots

2.2 - Multiplying & Dividing Powers

2.3 - Raising Powers

2.4 - Applying Powers To Fractions

2.5 - Negative Powers

2.6 - Fractional Powers

2.7 - Expressions vs Equations

2.8 - Collecting Like Terms

2.9 - Simplifying Algebraic Expressions

2.10 - Expanding Single Brackets

2.11 - Expanding Double Brackets

2.12 - Expanding Triple Brackets

2.13 - Factorising Single Brackets

2.14 - Factorising - The Difference Of Two Squares (DOTS)

2.15 - Surds - Intro & How To Simplify

2.16 - Surds - Simplifying Expressions

2.17 - Surds - Rationalising The Denominator

2.18 - Algebraic Equations (1 Operation & 1 Subject)

2.19 - Algebraic Equations (2 Operations & 1 Subject)

2.20 - Algebraic Equations (2 Subjects)

2.21 - What Formulas Are

2.22 - Rearranging Formulas (Where Subject Appears Once)

2.23 - Rearranging Formulas (Where Subject Appears Twice)

2.24 - Factorising Quadratic Equations (Where a=1)

2.25 - Factorising Quadratic Equations (Where a>1)

2.26 - The Quadratic Formula

2.27 - Completing The Square (When a=1)

2.28 - Solving By Completing The Square (When a=1)

2.29 - Intro To Inequalities

2.30 - Algebra With Inequalities (Part 1)

2.31 - Algebra With Inequalities (Part 2)

2.32 - Graphical Inequalities

2.33 - Solving Simultaneous Equations Using Graphs

2.34 - Intro To Simultaneous Equations (Linear & Non-Quadratic)

2.35 - Solving Simultaneous Equations - Elimination Method

2.36 - Solving Simultaneous Equations - Substitution Method

2.37 - Simultaneous Equations - Quadratic Graphs

2.38 - Number Patterns & Sequences (Arithmetic & Geometric)

2.39 - Finding The nth Term (Arithmetic Sequences)

2.40 - Proving Algebraic Identities

2.41 - Proof By Counter-Example

2.42 - What 'Directly Proportional' Means

2.43 - Algebraic Expressions For Directly Proportional Relationships

2.44 - What 'Inversely Proportional' Means