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Maths blog posts | TeachTutti
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Student

9 min read

Solving simultaneous equations - GCSE Maths

Learn what simultaneous equations are and how to solve them step by step, using the key algebraic methods of substitution, elimination, and graphs. Worked examples and quiz questions are provided to reinforce and test your understanding. Suitable for GCSE Maths revision.

Student

9 min read

Work out the Modal Class Interval - GCSE Maths

The modal class interval is the class interval with the highest frequency in grouped data. This guide explains how to find it in grouped frequency tables with step-by-step examples. Quiz questions are included to test your understanding. You will also learn the difference between a mode and a modal class interval. Suitable for GCSE Maths revision.

Student

8 min read

Use the Sine and cosine rules - GCSE Maths, Higher

The sine and cosine rules solve the angles or sides of a triangle that isn't right-angled. This guide explains when to use each rule, how the formulas work, and how to apply them step by step. Includes diagrams and worked examples, with quiz questions to test your understanding. Suitable for GCSE Maths revision.

Student

5 min read

Volume of a Prism - GCSE Maths

Learn how to calculate the volume of a prism with clear explanations, diagrams, and worked examples. This guide covers different types of prisms, shows how the formula works, and helps build confidence with volume questions and quiz questions. Suitable for GCSE Maths revision.

Student

6 min read

Calculate percentage change - GCSE Maths Exam Revision

Percentage change means increasing or decreasing a value from its original amount. This guide explains the core formula, with worked examples for calculator and non-calculator papers. We also explore successive and reverse percentage questions. Quiz questions are included.

Student

11 min read

Functions - Higher GCSE Maths

Learn what a function is - an input leading to a single output. We explain how to read f(x) and substitute values accurately, and the importance of domain and range. Learn the difference between fg(x) and gf(x) for composite functions. Quiz questions are included to test your understanding for GCSE Maths preparation.