Key Stage 3 Number Lessons

Accuracy / Decimals / Fractions / Indices / Negative Numbers / Number Properties / Percentages / Place Value / Ratio and Proportion

Accuracy

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Making Approximations using Rounding
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Rounding Decimal Numbers
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Rounding Numbers to a Significant Figure

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Decimals

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Addition with Decimal Numbers
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Division with Decimal Numbers
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Multiplication Problems
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Multiplication with Decimal Numbers
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Multiplying Decimals using the Grid Method
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Rounding Decimal Numbers
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Subtraction with Decimal Numbers

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Fractions

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Adding Fractions using a Fraction Wall
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Calculating Fractions of an Amount
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Calculations with Fractions and Mixed Numbers
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Comparing Fractions with Different Denominators
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Dividing Mixed Numbers and Top-Heavy Fractions
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Dividing with Fractions using Visual Methods
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Introducing Mixed Numbers
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Introduction to Writing Equivalent Fractions
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Multiplying Mixed Numbers and Top-Heavy Fractions
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Multiplying with Fractions
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Subtracting Fractions using a Fraction Wall

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Indices

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Indices with Negative Powers
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Large Numbers in Standard Form
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Simplifying numbers written in index form
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Writing small numbers in Standard Form

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Negative Numbers

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Addition with Negative Numbers
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Comparing Positive and Negative Numbers
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Dividing with Negative Numbers
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Multiplying with Negative Numbers
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Subtraction with Negative Numbers

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Number Properties

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Factor Pairs of Numbers and Terms
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Finding Prime Factors
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Finding Prime Numbers
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Finding the Highest Common Factor
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Multiples of numbers and expressions
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Problem Solving with Number
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Problem Solving with Time Tables
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Square Numbers and Square Roots
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Using Scientific Calculators

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Percentages

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Calculating a Percentage Change
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Calculating a Simple Interest in Financial Mathematics
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Converting between fractions, decimals and percentages
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Expressing One Number as a Percentage of Another
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Finding Percentages without a Calculator
Shape
Finding the Original Amount – Percentage Changes
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Fractions and Decimal Numbers
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Writing Fractions as Percentages

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Place Value

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Alternative Number Systems
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Comparing the size of numbers
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Dividing a number by a power of ten
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Multiplying a number by a power of ten
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Multiplying and Dividing Numbers by 0.1 and 0.01
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Reading and writing numbers on a scale
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Writing Numbers using Words and Digits

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Ratio and Proportion

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Calculating Speed, Distance and Time
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Direct Proportion and Exchange Rates
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Inverse Proportion
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Ratio and Equivalent Proportions
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Scale Drawings
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Sharing in a Given Ratio
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Writing Ratios in their Simplest Form

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Mr Mathematics Blog

Reflective Symmetry in 2D Shapes

Key Stage 3 lesson on identifying lines of reflective symmetry in 2D shapes.

Equation of Parallel and Perpendicular Lines

How to find the equation of parallel and perpendicular straight line graphs at A-Level.

Gradient and Midpoint of Line Segments

AS Mathematics – How to work out the gradient and midpoint of line segments.