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Maths

GCSE-style Maths Foundation 14–16

GCSE-style Foundation maths practice for ages 14–16: indices and standard form, percentages and compound interest, error intervals, expanding and factorising, quadratic and simultaneous equations, straight-line and quadratic graphs, Pythagoras and trigonometry, probability trees and statistics. Typed exact answers with worked solutions.

Start the programmeTake the check-up
Ages 14–166 levels · 79 lessonsAbout 5 minutes a lessonFree to start

Level 1 · Unit 1

The first steps on the path

Lessons unlock one after another. Done lessons stay open for extra practice.

Try a sample lesson

This is how the first lesson starts. Sign in to play it and save stars.

Learn

Indices

About 5 minutes

How it works

A power is repeated multiplying: 2³ = 2 × 2 × 2 = 8. A prime has exactly two factors: 1 and itself.

  • Example 1

    Simplify 4x³ × 5x⁴.

    Answer: 20x⁷

  • Example 2

    Find n: (2⁹)² = 2ⁿ.

    Answer: 18

Let’s practise

What’s inside

6 levels · 14 units · 79 lessons. Each unit ends with a check-up that unlocks the next one.

Level 1 · Number

  1. Indices, primes and standard form · 6 lessons

    • Indices
    • Primes, HCF and LCM
    • Standard form
    • Indices · Challenge
    • Primes, HCF and LCM · Challenge
    • Standard form · Challenge

  2. Percentages, interest and error intervals · 6 lessons

    • Reverse percentages
    • Compound interest
    • Bounds
    • Reverse percentages · Challenge
    • Compound interest · Challenge
    • Bounds · Challenge

  3. Recurring decimals and proportion · 4 lessons

    • Recurring decimals
    • Proportion
    • Recurring decimals · Challenge
    • Proportion · Challenge
Level 2 · Algebra

  1. Expanding, factorising and simplifying · 6 lessons

    • Simplifying expressions
    • Expanding brackets
    • Factorising
    • Expanding brackets · Challenge
    • Factorising · Challenge
    • Index laws with letters

  2. Equations and inequalities · 6 lessons

    • Quadratic equations
    • Simultaneous equations
    • Inequalities
    • Quadratic equations · Challenge
    • Simultaneous equations · Challenge
    • Inequalities · Challenge

  3. Formulae and sequences · 4 lessons

    • Rearranging formulae
    • nth term rules
    • Rearranging formulae · Challenge
    • nth term rules · Challenge
Level 3 · Graphs

  1. Straight-line graphs · 6 lessons

    • Gradients
    • Equations of lines
    • Parallel and perpendicular lines
    • Gradients · Challenge
    • Equations of lines · Challenge
    • Midpoints and lengths

  2. Quadratic and real-life graphs · 6 lessons

    • Quadratic graphs
    • Reading graphs
    • Distance–time and velocity–time graphs
    • Quadratic graphs · Challenge
    • Reading graphs · Challenge
    • Distance–time and velocity–time graphs · Challenge
Level 4 · Geometry and measures

  1. Pythagoras and trigonometry · 7 lessons

    • Pythagoras (decimals)
    • Right-angled triangles
    • Elevation and bearings
    • Pythagoras (decimals) · Challenge
    • Right-angled triangles · Challenge
    • Exact values
    • Elevation and bearings · Challenge

  2. Arcs, sectors and solids · 5 lessons

    • Arcs and sectors
    • Cones, spheres, pyramids
    • Circle theorems
    • Arcs and sectors · Challenge
    • Cones, spheres, pyramids · Challenge

  3. Similar shapes and vectors · 4 lessons

    • Similar shapes
    • Vectors
    • Similar shapes · Challenge
    • Vectors · Challenge
Level 5 · Probability and statistics

  1. Probability · 6 lessons

    • Sample spaces
    • Tree diagrams
    • Venn diagrams
    • Expected and relative frequency
    • Tree diagrams · Challenge
    • Two-way tables

  2. Statistics · 6 lessons

    • Quartiles and spread
    • Grouped data
    • Scatter graphs
    • Quartiles and spread · Challenge
    • Grouped data · Challenge
    • Scatter graphs · Challenge
Level 6 · Mixed exam-style practice

  1. Mixed GCSE-style Foundation practice · 7 lessons

    • Number II: Mixed (by level)
    • Algebra II: Mixed practice
    • Graphs and functions: Mixed practice
    • Geometry II: Mixed (by level)
    • Trigonometry: Mixed (by level)
    • Probability: Mixed (by level)
    • Statistics II: Mixed (by level)

About this programme

The units cover the Foundation tier of the GCSE maths subject content for England, from grade 1 up to the grade 4–5 boundary. Each unit starts with a Year 9-style warm-up and ends at the top of Foundation, then a unit check unlocks the next one.

Crayonbird is not linked to any exam board. Every question is original and generated by code, and the answer keys are worked out exactly, so they are always right.

Questions grown-ups ask

Where should I start?

Take the GCSE-style maths check-up (about 15 questions). It adapts to your answers and suggests a programme and level, from KS3-style to GCSE-style Higher.

How do I type answers like √12 or x ≥ 3?

A maths keypad under each answer box has √, powers, fractions, π, brackets and ≤ ≥. Answers are checked by value, and you get a nudge when the value is right but not yet in its simplest or factorised form.

How long is a lesson?

Most lessons take 5 to 10 minutes: a short learn card, practice that is marked as you go, and often a quick game. Little and often works best.

Do children need an account?

A grown-up signs up and adds a child profile; children never need an email or password. Class students sign in with their class code and PIN.

Is the practice the same every time?

No. Every practice step is generated fresh, so a child can repeat a lesson as often as they like and still get new questions.

Can I see how my child is doing?

Yes. The parent dashboard shows each programme, the level, stars, when your child last practised, and the skills that are going well or need more work.

Can I print the lessons?

Lessons are made for the screen, but every practice sheet can also be printed from the worksheet maker.

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