I was playing around in @desmos.com Geometry with triangles that share the same nine-point circle, and I accidentally made a pretty pattern.
www.desmos.com/geometry/mk3...
#iTeachMath #MathSky
#mathsconf40 reminded me how awesome the community is despite the social media lull nowadays.
Really enjoyed the sessions I was part of, particularly @mr-man-maths.bsky.social international questions... rich seam!
Big thanks to everyone who joined us for #MathsConf40!
It was inspiring to see so many maths educators sharing ideas, resources, and passion. Collaboration like this makes a real difference for our students.
Keep an eye on our socials—#MathsConf41 is coming soon 👀
Teacher Tapp screen showing my blog
So happy that @teachertapp.bsky.social have featured my recent blog about the fallacy of comparing the ease with which kids learn popular song lyrics and the difficulty they have in learning things in the classroom.
Read it for yourself here: educatingmrmattock.blogspot.com/2026/04/they...
My #MathsConf40 workshop choices:
1 - Joe Berwick
2 - Alexandria Dowson
3 - Colin Warden
4 - Matt Man
5 - Dr Ed Southall
Join me with @lasalleed.bsky.social, get your ticket here: completemaths.com/community/mathsconf40
3 days. 72 hours. One epic day of maths. ⚡️
The stage is set in Derby for #MathsConf40! Don't miss your chance to join hundreds of educators for the ultimate day of inspiration and community.
⏰ Last call for tickets – get yours now: 👉 completemaths.com/community/ma...
IT'S FINALLY COMPLETE! (35% OFF)
Just submitted the last bits to complete my latest book with Manning. M
Right now, you can buy the book digitally and physically for 35% off.
Find this and all my other books at books.alexmerced.com
#ApacheIceberg #DataLakehouse #DataEngineering
Reflexes
Really worth looking at these **FREE** @nrichmaths.bsky.social webinars nrich.maths.org/events-teach...
Under the hood of MDN's new frontend developer.mozilla.org/en-US/blog/m... - using React to serve essentially static content "accumulated quite a lot of technical debt", and is better replaced by … Web Components and CSS, AKA "the web platform". developer.mozilla.org/en-US/blog/m...
My #MathsConf40 workshop choices:
1 - Greg Thomas & Anna Berry
2 - Jo Morgan
3 - George Bowman
4 - Saskia Roobaert
5 - Dr Ed Southall
Join me with @lasalleed.bsky.social, get your ticket here: completemaths.com/community/mathsconf40
Maths Teachers — If you could add a feature/resource type/section onto Mathsbox that would save you time or improve your lessons, what would it be? 👇
Would love to hear your ideas.
⏳ Just 7 days to go until #MathsConf40 in Derby!
In just one week, hundreds of maths teachers will be coming together for a day of learning, collaboration, and inspiration. 🧮✨
🎟️ Be part of it – secure your place today: completemaths.com/community/ma...
I will say, on a positive note, that @sarasoueidan.com’s course has been a shining light in the darkness for me. Haven’t finished it yet, about half way through, but it’s very very good if you don’t know where to start.
Looking forward to leading a "different" type of workshop!
Inspired by being away from the UK for Easter, we will look at exam papers from other countries and see how they compare!
Come round to #Mathsconf40 and find out more!
A diagram of a circle with a radius of 1. A right-angled triangle is drawn from the centre with the hypotenuse tangent to the circle. Above, a prompt says "What angles and lengths can you find?".
A rough draft of an idea for a goal-free style task.
I want it to be as clean as possible but need to add a few more details to make it mathematically correct in terms of all the right-angles in the diagram.
Any thoughts welcome.
Bending a straight line using pure CSS?! 👀
Another cool demo in progress powered by border-shape. It's coming to @developer.chrome.com next week! 🤩
A 4 by 4 square drawn on a grid with the instructions "Draw another square with an area twice as large."
A simple task, but one of my favourites.
How do you see it?
"If you were to give a beginner one piece of advice, what would it be? Learn to really, thoroughly and completely enjoy being shit at something. The process of learning is chaotic, nonlinear, and uniquely human. You’re getting stuck in and you’re deciding to learn a craft or technique for yourself. That is to be cherished and protected and loved."
This is good advice even for those with 20 years experience. Thanks for the reminder @scott.is 💛
piccalilli.link/md-q-and-a-5
“How We Helped Bring HTML Video & Audio Lazy Loading to Today’s Browsers” next to HTML Living Standard page dated 23 March 2026 with the loading attribute spec.
Squarespace and web standards: how we helped bring HTML video and audio lazy loading to today’s browsers. Scott Jehl describes how the team proposed loading="lazy" for video and audio, making it an official web standard. #html #performance
engineering.squaresp...
Mmmmmmm twisted lemon…
Today I published the second update of this month to the Practical Accessibility course content.
I have at least two or three more updates coming this April.
As I promised, I want to keep the course as up-to-date and as relevant to your work as possible.
Get access @ practical-accessibility.today
come and join us in the East Midlands! #mathsconf40
📣 #MathsConf40
✨ Revisiting Inequalities with Sam Blatherwick
Move beyond tricks and teach inequalities through connected ideas from KS2–KS5, with insight into A-level progression.
🎟️ Book now: completemaths.com/community/ma...
📣 #MathsConf40: From Knowing to Thinking! 🧠 by Saskia Roobaert
Move students beyond "answer-getting." Use the "Challenge Ladder" framework (KS2 to FE) to embed recall, connection, and generalisation into every lesson.
Tickets: completemaths.com/community/ma...
If you're learning programming skills: Igalia is taking applications for a program paying you to work on open source
💰 Fully paid grant program
📆 450 hours of work with a mentor from June
📍Global remote program
🎓 Open to students or self-directed learners
🚨 Applications close April 3rd!
