Here are skoool™'s  great Study Notes for Maths at Higher level.

You can read the notes online or print them to use as a permanent revision aid.

Module 1: Handling Data and Probability

Probability

• Listing Outcomes
• And/Or Rules
• Conditional Probability

Module 3: Number and Algebra

Number

• Direct and Inverse Proportion
• Boundaries – Upper and Lower Class
• Standard Form
• Practical Use of Numbers
• Rational and Irrational Numbers
• Surds
• Changing a Recurring Decimal

Algebra

• Brackets
• Factorising
• Indices

Module 5: Shape, Space and Measure and Algebra

Algebra

• Solving Quadratic Equations
• Solving Simultaneous Equations
• Subject of a Formula
• Inequalities
• Solving Equations – Trial and Improvement
• nth Term and Sequences
• Algebraic Direct and Indirect Proportion
• Simplifying Fractions