The Primary Maths Podcast AfterMaths: Six of the Toughest Maths Concepts - Our Definitive Countdown
Nov 28, 2025
A lively history of the equals sign kicks things off with surprising backstory. The presenters count down six of the toughest primary maths topics, from comparing fractions and long division to analogue time, metric–imperial conversions and angles. They also revisit problem solving’s role in building resilience and explore why some numbers stick in memory.
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Origin Of The Equals Sign
- Robert Recorde introduced the modern equals sign in 1557 saying "nothing could be more equal than two parallel lines."
- The symbol took decades to catch on and had vertical-line competitors before becoming standard.
Why Comparing Fractions Is Deceptive
- Comparing fractions exposes deep gaps in understanding of 'whole' and proportional reasoning.
- Procedural methods (common denominators) become necessary when numerators differ and conceptual cues fail.
Teach Angles As Turns
- Teach angles as turns using physical movement and ruler demonstrations to show rotation not distance.
- Use playground turns and paired rulers to link the idea to children’s spatial experience.
