- Logic, Truth Tables and Switching Circuits Challenge
- Magic Squares
- Magic Squares for Special Occasions
- Magic Squares II
- Magic Sums and Products
- Magical Maze - 35 Activities
- Mathematical Issues for Chemists
- Mathematical Ways to Spend Your Summer
- Mathematics in the Financial Markets
- Maths and Climate Change: the Melting Arctic
- Maths in the Undergraduate Physical Sciences
- Modelling Assumptions in Mechanics
- Modelling with Differential Equations
- Modulus Arithmetic and a Solution to Differences
- Modulus Arithmetic and a Solution to Dirisibly Yours
- More Old Chestnuts
- More Sums of Squares
- Mouhefanggai
- Muggles, Logo and Gradients
- Multiplication of Vectors
- Neural Nets
- On the Importance of Pedantry
- Paint Rollers for Frieze Patterns.
- Paper Folding - Models of the Platonic Solids
- Parallel Parking
- Picturing Pythagorean Triples
- Playing Squash
- Preparing for Interviews
- Preparing Students for STEM at University
- Probability Questions as Counting Problems
- Probability Through Problems: a new approach to teaching probability
- Programming: MoirĂ© Patterns
- Proofs with Pictures
- Public Key Cryptography
- Pythagorean Triples I
- Pythagorean Triples II
- Raffles and Strings
- Randomness and Brownian Motion
- Reaction Rates!
- Recent Developments on S.P. Numbers
- Roasting Old Chestnuts
- Second Order Differential Equations
- Seven Core Tips for Effective Studying
- Shaping the Universe I - Planet Earth
- Shaping the Universe II - the Solar System
- Shaping the Universe III - to Infinity and Beyond
- Small Groups
- Solving STEP Problems with Vectors
- Solving the Genome Puzzle
- Some Circuits in Graph or Network Theory
- Some Induction Examples
- Some Thoughts on Teaching about Area
- Sperner's Lemma
- Sprouts Explained
- Statistics in STEP: Discrete and Continuous Random Variables
- Statistics in STEP: Hypothesis Testing
- STEP Advice
- STEP Stats Questions with Hints
- Stretching Fractions: A Discussion
- Sufficient but Not Necessary: Two Eyes and Seki in Go
- Sum the Series
- Sums and Products of Digits and SP Numbers
- Sums of Powers - A Festive Story
- Sums of Squares and Sums of Cubes
- Supporting Highly Able Mathematicians - Books for KS3-5
- Symmetric Tangles
- Taking Chances Extended
- Tangles
- Telescoping Functions
- The Chinese Remainder Theorem
- The Cyclic Quadrilateral
- The Development of Algebra - 1
- The Development of Algebra - 2
- The Dodecahedron Explained
- The Eternity Puzzle
- The Four Colour Theorem
- The Frieze Tree
- The Golden Ratio, Fibonacci Numbers and Continued Fractions.
- The Harmonic Triangle and Pascal's Triangle
- The History of Trigonometry- Part 1
- The Knapsack Problem and Public Key Cryptography
- The Kth Sum of N Numbers
- The Mathematical Problems Faced by Advanced STEM Students
- The Mean Game
- The Naked Pair in Sudoku
- The Power of Dimensional Analysis
- The Random World
- The Secret World of Codes and Code Breaking
- The Use of Mathematics in Computer Games
- The Why and How of Substitution
- Tilted Squares - Teaching Using Rich Tasks
- To Prove or Not to Prove
- Tournament Scheduling
- Transitivity
- Truth Tables and Electronic Circuits
- Try to Win
- Understanding Hypotheses
- Weekly Challenges Are Here!
- What Are Complex Numbers?
- What Are Numbers?