Year 10 Term 3

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Year 10 Term 3

Number: Free Resources
Calculations with bounds GCSE preview: formula W = a ÷ (m − x) with Lower and Upper labels, asking students to find the lower bound of W – Mr Mathematics lesson pack.
Ages 14 - 16

Calculations with Bounds

Students learn how to perform calculations with the upper and lower bound of measurements.
Number: Interactive Lessons
Estimating Solutions by Rounding to a Significant Figure
Ages 14 - 16

Estimating Solutions by Rounding

Students learn how to estimate solutions by rounding numbers to a significant figure.
Number: Interactive Lessons
Upper and lower bounds example: height 174 cm to nearest centimetre, inequality for h — unique per image, not keyword-stuffed.
Ages 14 - 16

Limits of Accuracy

Students learn how to calculate the limits of accuracy of rounded numbers.
Number: Interactive Lessons
Rounding to the Nearest Power of Ten
Ages 14 - 16

Rounding to the Nearest Power of Ten

Students learn how to round a number to the nearest 10, 100 and 1000.
Number: Interactive Lessons
Rounding to Significant Figures
Ages 14 - 16

Rounding to Significant Figures

Students learn how to round a number to a significant figure using place value.
Number: Interactive Lessons
Rounding to a Decimal Place
Ages 14 - 16

Rounding to a Decimal Place

Students learn how to round a number to a given decimal place using place value.
Shape: Interactive Lessons
Trigonometry Problems with Right-Angled Triangles
Ages 14 - 16

Trigonometry Problems with Right-Angled Triangles

Students learn how to apply trigonometry to problems in right-angled triangles.
Shape: Interactive Lessons
Trigonometry - Lengths in Right-Angled Triangles
Ages 14 - 16

Trigonometry Finding Lengths in Right-Angled Triangles

Students learn how to calculate unknown lengths in right-angled triangles using Sin, Cos and Tan.
Shape: Interactive Lessons
Trigonometry Introduction
Ages 14 - 16

Trigonometry Introduction

Students discover the three trigonometric ratios Sin, Cos and Tan through constructions.
Shape: Interactive Lessons
Trigonometry Angles in Right-Angled Triangles
Ages 14 - 16

Trigonometry Angles in Right-Angled Triangles

Students learn how to apply Sin, Cos and Tan to find missing angles in right-angled triangles.
Shape: Interactive Lessons
Preview of a GCSE Higher 3D Trigonometry exam technique slide showing a triangular prism diagram with lengths 4 cm, 6 cm, an angle of 20 degrees, and prompt to calculate angle theta.
Ages 14 - 16

3D Trigonometry

Students learn how to calculate an angle and length in a 3D shape using trigonometry.
Number: Interactive Lessons
GCSE Mathematics lesson on fractional powers and indices featuring Evaluate, Simplify, and Prove tasks. Examples include simplifying (x^6w^10/25)^(3/2) using fractional index laws and evaluating 2^3 × 8^(2/3) √8. This differentiated approach builds fluency with rational exponents, surds, and index notation. Perfect for Edexcel, AQA, OCR GCSE maths students mastering fractional indices, powers of fractions, and algebraic simplification.
Ages 14 - 16

Indices with Fractional Powers

Complete GCSE maths lesson and worksheet on fractional indices.
Number: Interactive Lessons
Highest Common Factor and Lowest Common Multiple
Ages 14 - 16

Highest Common Factor and Lowest Common Multiple

Students learn how to use prime factors to work out the HCF and LCM.
Number: Interactive Lessons
GCSE Mathematics lesson on negative powers and indices featuring three skill levels: Evaluate (writing 1/32 as a power of 2), Simplify, and Prove (showing that (2x^-3)^-2 equals x^6/4). This differentiated approach helps students master negative index laws through progressive problem-solving. Suitable for Edexcel, AQA, OCR GCSE maths students learning laws of indices, exponent rules, and algebraic manipulation with negative powers.
Ages 14 - 16

Indices with Negative Powers

Complete GCSE maths lesson and worksheet on negative powers.
Number: Interactive Lessons
Prime Factorisation Lesson
Ages 14 - 16

Prime Factor Decomposition

Students learn how to break down a number using its prime factors.
Number: Interactive Lessons
Rationalising Denominators
Ages 14 - 16

Rationalising Denominators

Students learn how to rationalise denominators of simple fractions.

Mr Mathematics Blog

Developing Mathematical Thinking Beyond Procedural Fluency

July 10, 2026
A research-backed case exploring why over-reliance on automated math homework platforms and repetitive worksheets lowers student expectations, and how departments can build genuine mathematical thinking.

Converting Between Fractions, Decimals and Percentages

July 4, 2026
How to teach converting between fractions, decimals and percentages.

From Key Skills to Deep Connections: Problem Solving in Secondary Maths

June 28, 2026
Four problem solving lessons to develop student's mathematical reasoning and communication skills.