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28 articles tagged "Stage 4"
The % Trap: How Fractions, Decimals and Percentages Play Tricks on You
Ever wondered why a 20% sale followed by a 20% “restock” never returns you to the original price? Dive into how fractions, decimals and percentages aren’t just interchangeable—they each have their own quirks that can trip you up.
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How Medieval Taxes Shaped Fractions, Decimals & Percentages
Explore how medieval tax collectors gave rise to percentages and decimals, and why these number systems still pop up in everything from shopping discounts to sports stats.
When Negatives Were Taboo: The Story of Computing with Integers
Discover how integer computations—especially negative numbers once shunned—shape everything from weather forecasts to coding. Learn the surprising history and real-life uses of these fundamental skills.
Finding Harmony: How Ratios and Rates Shape Music, Maps and More
Discover the surprising ways simple ratios and rates underpin everything from musical notes to map scales — and learn to tell them apart.
Lines All Around Us: The Secret Power of Linear Relationships
Discover how linear relationships have shaped everything from ancient pyramid ramps to your kitchen scales, and learn why y=mx+b is more than just an algebra rule.
When Numbers Went Negative: Mastering Integer Computations
Dive into the surprising story behind negative numbers and discover why mastering computations with integers is more than just adding and subtracting.
Why Every Polygon’s Exterior Angles Sum to 360°
Discover the surprising reason why, no matter how many sides a polygon has, its exterior angles always add up to a full circle—and how that idea shows up in navigation, robotics and more.
When 2/3 Was All You Had: A Surprising History of Fractions, Decimals & Percentages
Trace the quirky evolution of fractions, decimals, and percentages—from Ancient Egyptian unit fractions to modern discount dramas—and clear up the mix-ups that trip up students.
The Musical Math of Ratios and Rates
Discover how simple comparisons like ratios underpinned ancient Greek music and why rates such as BPM and map scales pop up in everyday life.
Fractions, Decimals & Percentages: One Number, Three Faces
Fractions, decimals and percentages might look different, but they’re really the same value wearing different costumes. Dive into their surprising origins, everyday uses and top tips for converting like a pro.
When a Litre Isn’t Really a Litre: The Surprising World of Volumes
Dive into the story of how mathematicians like Archimedes unlocked the secrets of volume—and discover why mixing two volumes of liquid doesn’t always give you the total you expect.