In a square the blue and the green line are perpendicular each other. Find the ratio of the area of the yellow square and the red square.

In #MathsToday this week, I'll be visiting Sheikh Pharo Secondary School in Somaliland, where I'll be leading some CPD with the maths department and working with pupils preparing for their IGCSEs and AS Levels. Might also manage to fit in a spot of birdwatching...

Problem of the Week 166! Please do not comment the solution so others can work it out too. Instead, like this post or comment a thumbs up if you think you have the correct answer! The solution will be posted in the comments on Thursday afternoon. #Problem #UKMT #Maths

You can do this calculus problem with just any random book 😱

My school is looking for a Lead Teacher of Computer Science. We are offering GCSE for the first time from September. This is a really exciting opportunity for someone to design our provision from scratch. Happy to answer any questions. Please share. www.tes.com/jobs/vacancy...

The two blue angles are equal. What’s the size of the orange angle?

I'm sharing two "rolling powerpoints" I keep updated with a) all the AMSP and MEI courses and conferences oming up b) all the exam boards' training and updates The focus is post-16 but if you bookmark the Dropbox link they shoudl be useful for most secondary www.dropbox.com/scl/fo/hamhc...

new PROMYS for Teachers Alum problem set just dropped: drive.google.com/file/d/1RYyK... Shared by @cshor.org with attribution to Nate Stambaugh! (Love to see a "let bigons be bigons" pun) #iTeachMath ♾️ #MTBoS bcc #MathSky 🧮

#ALevelMaths #MathsToday Here's a @desmos.com sheet to generate a sample from a user-defined discrete distribution (on 1, 2, 3, ..., n) www.desmos.com/calculator/h... and a similar thing in Google Sheets: docs.google.com/spreadsheets...

MATHS TEACHERS! We are expanding our team due to increased curriculum time. *2 posts available* Lovely, dedicated & supportive team. Easily commutable from Leeds & York. Happy to answer questions via DM. Please share if you can. www.king-james.co.uk/job/teacher-... Reposts appreciated!

I'd make a complex number joke, but someone could lose an i.

Due to a relocation we have another vacancy. Do you want to come and teach maths in the beautiful national forest? 🌳 🏡 Come and join a team that love to talk about teaching maths DM if you have any questions share.google/nZ9dKhpLJXwj...

Damped oscillations in #ALevelMaths #FurtherMaths #MathsToday, so I made this @desmos.com to illustrate under- critical- and over-damping: www.desmos.com/calculator/s...

My school is hiring a maths teacher for September! www.swchs.net/blog/?pid=37... Come and work with a brilliantly supportive department, with loads of high quality shared resources, in a school that takes staff workload and wellbeing really seriously.

TIL that if a quadrilateral's angles are in arithmetic progression then it must be cyclic or a trapezium. Easy to show, but I found it surprising. #MathsToday

'Bringing the Maths of Data Science and AI into the A level Maths classroom' is running again next term with 3 different options: • 5 online sessions (Apr-May) • 4 online sessions + study day - with a £350 bursary (Jun-Jul) • 5 online sessions (Jun-Jul) amsp.org.uk/maths-into-ai/

#MathsToday #ALevelMaths Any Edexcel A Level maths examiners out there: when a contract states 900 (say) items, is that 900 of the same question, or 900 papers? I'm assuming the former, as 900 papers seems like a hell of a load...!

Amazing Opportunity! Harris Westminster is looking for a new Principal - taking charge of a school which is objectively the best one in the imaginable universe (I am also personally fond of it but don’t let that cloud my view). Message me if you want a chat www.harriscareers.org.uk/200/search-o...

5 years since you wrote us a puzzle @catrionaagg.bsky.social 😍

The field of maths has always had remarkable women. History has just been quieter about them. A few years ago I wrote about Mary Somerville in my Roots column for @chalkdustmag.bsky.social - a mathematician who followed her curiosity despite the expectations placed on women at the time. 🧵

Come and work with me! We need a Teacher of Maths for September. Barton Peveril Sixth Form College in Eastleigh, Hampshire. 1100+ A-Level Maths students! Message me if you have any questions. #ALevelMaths barton-peveril.ac.uk/careers/vaca...

It's a rest week in the Six Nations, so I've got a challenge for you: how could a team win the championship despite losing four of their five games? Assume no tied matches (For those who aren't aficionados, you get four points for a win and zero for a loss, plus potential bonus points: any team […]

Seven squares. What’s the angle? #geometrypuzzle

💬 If you love chatting with your departmental colleagues about maths, you’ll love training as a Mastery Specialist 🗨️ You get to talk about maths for literally days on end with other maths teachers from across the country!

Y12 are on a sugar high after our double #mathstoday. We followed Paddy's example, using his amazing Desmos files to help explain the thinking as we worked through a hypothesis test with our own bag of M&Ms. 31 browns! They then ran their own test in pairs with smarties.

#MathsToday Fantastic job opportunity... my job! latymer.ciphr-irecruit.com/templates/CI...

Enjoyed using @desmos.com to make this geometric distribution sampler for use in lower sixth #ALevelMaths #MathsToday. Recursion very handy for defining the inverse cumulative distribution function! www.desmos.com/calculator/0...

Cambridge OCR Core Maths pre-release available on Teach Cambridge from 1 March 2026. For more details www.ocr.org.uk/administrati... @cambridgeocr.bsky.social

Particularly useful with the recent changes in Oxford and Cambridge requirements and also discusses lower tariff universities as mentioned in @mathsjem.bsky.social's blog this week.

🔹🔷🟦 #FridayQuiz 🟦🔷🔹 🔹 Like, share and repost 🔹 Have a go and good luck! 🔹 Share your score below with a gif 🔹 Share the quiz with whoever you want! Happy #Friday! docs.google.com/forms/d/e/1F...

Prospective Cambridge applicants are welcome to join in with our free online TMUA support livestreams over the summer at www.maths.ox.ac.uk/r/tmua ^James

Change in admissions procedure for Maths at Cambridge applications. From 2027 entry (so those currently in year 12), all Maths applicants are required to take TMUA. www.maths.cam.ac.uk/undergrad/ad... #Alevelmaths #UKmathschat #TMUA

Six squares and a quarter circle. The blue square has area 2. What’s the yellow area? #geometrypuzzle

Found out in #MathsToday that Cambridge have announced that they will now use both the TMUA *and* STEP for entry to the Mathematical Tripos from 2027 which follows Oxford’s decision to swap MAT for TMUA last month. #ALevelMaths teachers take note, source here: www.christs.cam.ac.uk/study-here/u...

We're running our popular 'Bringing the Maths of Data Science and AI into the A level Classroom' PD course again in the summer term. 2 options: only-only and blended (online with a study day) Bookings are open now: amsp.org.uk/maths-into-ai/

Well, that's my weekend sorted! #geometrypuzzle #mathsky #UKMathsChat

We were using a template for the conclusion to hypothesis tests in #ALevelMaths #MathsToday. Too many straightforward marks lost on these questions.

A reminder of the Mathematical Hooks padlet - ways in which to promote thinking and discussion with students padlet.com/tessmaths1/m...

#MathsToday #ALevelMaths Find the exact value of the green area.

In L6 #FurtherMaths #MathsToday we used this picture to start talking about hypothesis tests. Analysis and introduction to chi-squared goodness of fit tests using this @googlecolab.bsky.social notebook: colab.research.google.com/drive/1HU9yF...

Normal distributions in #CoreMaths this week. I like the approach of introducing calculations using the proportions within 1, 2 or 3 standard deviations of the mean to begin with. And thanks to @catrionaagg.bsky.social I always label inflection points. #MathsToday docs.google.com/document/d/1...

January reading

A friend of mine has just launched this website that I think is pretty great for generating quick starters for A-Level maths and he has started adding some questions for Further Maths too. mrhardymaths.co.uk #MathsToday #ALevelMaths

⭐Three vacancies for Maths Education Support Specialists at @meimaths.bsky.social ⭐ 1) School & Stakeholder Engagement 2) Secondary Teacher Support 3) Level 3 Teacher Support Closing date is 09-02-2026 More info can be found here: mei.org.uk/about/careers/ ⭐Please share⭐

🔹🔷🟦 #FridayQuiz 🟦🔷🔹 🔹 Like, share and repost 🔹 Have a go and good luck! 🔹 Share your score below with a gif 🔹 Share the quiz with whoever you want! Happy #Friday! docs.google.com/forms/d/e/1F...

Note that this is part of a wider move by the University of Oxford to use UAT-UK tests, and there will no longer be an Oxford-only test for any course. We're planning to continue to interview roughly three candidates per place for Mathematics and joint honours. ^James

Come and join my department! We're in the Surrey hills (commutable from Guildford, Dorking, Horsham and beyond). Looking for another mathematician to grow our team. Small classes, mostly A level Maths / FM, ice cream on tap.. what's not to like?! www.tes.com/jobs/vacancy...