Stephen D T Froggatt

@MrMattock Superb. Didn't know this either! Reminded me of the better-known HCF hack of subtracting the two numbers and replacing the larger with the difference (Euclid).

After 20 years in #maths #education, I thought I knew everything there was to know about #fractions. That is until a little video crossed my path today that introduced a result so simple, I couldn't believe I wasn't already aware of it! Read my latest (relatively short) blog post to find out what the result was: educatingmrmattock.blogspot.com/2026/06/an-abs…

@schoolschess My School Chess Ladder software has now been upgraded. No subscriptions, no ads, completely offline and GDPR-safe. Just £2 on tes.com/teaching-resou… Free user manual to anyone interested.

@EmathsUK @mathsjem @DrBennison @MrMattock @HawesMaths @karenshancock @RJS2212 @mrsouthernmaths @AJMagicMessage Thanks folks! Please email froggatt at mac dot com and I'll send you the Dropbox link.

Looking for First Draft Readers of my new book: An Annotated and Corrected Transcription of The Whetstone Of Witte. Who's in? @EmathsUK @mathsjem @DrBennison @MrMattock @HawesMaths @karenshancock @RJS2212 @mrsouthernmaths @AJMagicMessage

@RJS2212 @EmathsUK @mathsjem @DrBennison @MrMattock @HawesMaths @karenshancock @mrsouthernmaths @AJMagicMessage Err… 300-ish!! But it’s got some nice pictures 😅

@StephenFroggatt @EmathsUK @mathsjem @DrBennison @MrMattock @HawesMaths @karenshancock @mrsouthernmaths @AJMagicMessage How many pages?

@RJS2212 I’ll do you a very special offer, Rob, just for you. Buy one for the price of two and get a second one completely free!

@StephenFroggatt Do you do a “free” trial ?? 🫣🫣🫣

Check out my latest resource for School Chess Clubs. No ads, no subscriptions, GDPR-safe. Runs entirely in the local browser. Offline Chess Ladder for Schools tes.com/resource-detai…

My #MathsConf40 workshop choices: 1 - @StephenFroggatt 2 - Aysha Rahman 3 - @MrMattock 4 - Clare Bond 5 - @EdSouthall Join me with @LaSalleEd, get your ticket here: completemaths.com/community/math…

📣 Another #MathsConf40 workshop announcement! ✨ Learning Maths With Robert Recorde (1577): Variation, Structure, and Symbol Sense by Stephen D. T. Froggatt @StephenFroggatt Step into a 16th-century classroom with Robert Recorde, the mathematician who introduced the equals sign. His carefully sequenced examples anticipate modern Variation Theory, supporting understanding of powers, roots, algebraic manipulation, and equations. In this hands-on workshop, delegates will explore Recorde’s original sequences and take away ready-to-use classroom tasks that expose structure, prevent misconceptions, and strengthen symbol sense. ✨ What you’ll take away: ✅ Practical classroom tasks inspired by 450-year-old sequences ✅ Strategies to expose structure and prevent misconceptions ✅ Approaches to strengthen students’ symbol sense ✅ Ideas to deepen conceptual understanding and boost confidence in algebra See how a historic commercial arithmetic manual can still inspire modern teaching and provide practical strategies for designing examples that make a real impact in the classroom. Learn more and book your tickets: completemaths.com/community/math…

I'm raising £500 to equip the school chess club. Please #donate on @justgiving and RT. Thanks! justgiving.com/crowdfunding/c…

Friends, I am raising funds for our school Chess Club. Any donation, however small, would be hugely appreciated. Thank you. justgiving.com/crowdfunding/c…

@MrBishop_Maths @mathsjem @MrMattock @taylorda01 Murder Mystery. Mathemagic Show. Luck or Risk Game. Bird Simulation. Magic Squares.

been asked to organise a 30 minute maths lesson for year 6 students coming up to the school on Thursday. Looking for some fresh Idea's if anyone has any? @mathsjem @MrMattock @taylorda01

My #MathsConf38 workshop choices: 1 - @StephenFroggatt 2 - @cclay8 3 - @MrMattock 4 - @RJS2212 5 - @DRoseMaths Join me with @LaSalleEd, get your ticket here: completemaths.com/community/math…

Just ordered “Teaching A Level Maths - Content and Pedagogy” following author’s @mrsouthernmaths inspirational session at #MathsConf36

Easy takeaway from my Fibonacci Patterns session at #MathsConf36: Pick any Fibonacci number and square it. I predict that the answer is one away from the product of its two neighbours. More #Fibonacci fun in the workshop notes!

Fantastic session on matrix transformations by @mrsouthernmaths at #MathsConf36 So much to take away!

@mr_man_maths @mr_man_maths Great to meet you and thanks for being such an enthusiastic participant!

More Fibonacci magic @StephenFroggatt #MathsConf36

@DrBennison Hi Tom, Sorry you couldn’t make it to My Fibonacci Patterns at #MathsConf36 Please DM me for a unique goody bag!

@DrBennison @mr_man_maths Let me see what I can do….

@mr_man_maths @StephenFroggatt Wanted to be in this one but I’m currently stuck outside the main car park gates with some others who can’t get in.

Calculator tricks from @StephenFroggatt - amazing! #Mathsconf36