GCSE Number Lessons

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

Accuracy

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Rounding to a Decimal Place
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Rounding to Significant Figures
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Rounding to the Nearest Power of Ten
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Limits of Accuracy
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Estimating Solutions by Rounding
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Calculations with Limits of Accuracy

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Decimals

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Short Multiplication
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Short Division
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Adding and Subtracting with Decimals
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Long Division
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Long Multiplication
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Ordering Decimal Numbers

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Fractions

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Addition and Subtraction with Fractions and Mixed Numbers
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Adding Fractions with Different Denominators
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Recurring Decimals
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Multiplying Fractions
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Mixed Numbers and Top Heavy Fractions
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Calculating a Fraction of an Amount
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Equivalent Fractions
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Dividing Fractions and Mixed Numbers

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Indices

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Adding and Subtracting in Standard form
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Calculations with Surds
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Simplifying Surds
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Writing Numbers in Standard Index Form
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Calculations With Standard Index Form
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Rules of Indices
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Rationalising Denominators
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Prime Factor Decomposition
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Indices with Negative Powers
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Highest Common Factor and Lowest Common Multiple
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Indices with Fractional Powers

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Negative Numbers

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Ordering Negative Numbers
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Multiplying and Dividing with Negatives
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Adding and Subtracting with Negative Numbers

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Number Properties

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Prime Numbers
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Multiples of a Number
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Factors of an Integer
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BODMAS and the Order of Operations
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Addition and Subtraction with Integers
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Using Calculator Efficiently
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Square and Cube Numbers
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Multiplying and Dividing by Tens

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Percentages

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Calculating a Repeated Percentage Change
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Reverse Percentages
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Percentage Increases
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Percentage Decreases
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Percentages of an Amount Non-Calculator Methods
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Percentages of an Amount Calculator Methods
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Writing Percentages
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Converting between fractions decimals and percentages
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Compound Percentage Increases
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Compound Percentage Decrease

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Place Value

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Short Multiplication
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Short Division
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Place Value
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Addition and Subtraction with Integers
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Multiplying and Dividing by Tens

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Ratio and Proportion

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3 Part Ratios
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Proportion and Recipes
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Simplifying Ratios
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Sharing to a Ratio
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Proportional Reasoning
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Modelling Inverse Proportion
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Direct Linear Proportion

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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.