Mathematics Teaching 300 now available online https://atm.org.uk/Mathematics-Teaching-Journal-Archive/177735

A special edition celebrating 300 issues with a self-referential cover, like MT 150 (https://en.wikipedia.org/wiki/Droste_effect)

Design by me

Five free articles for non-members:

Understanding geometry proof what do students say to AI feedback? https://atm.org.uk/write/MediaUploads/Journals/MT300/06.pdf
Yuqian (Linda) Wang and Hanmin Song explore whether personalised AI feedback can support students’ understanding of geometry proof tasks.

An appreciation of Alison Parish (1951–2026) https://atm.org.uk/write/MediaUploads/Journals/MT300/07.pdf

Can pedagogy for problem solving promote equity in the classroom? https://atm.org.uk/write/MediaUploads/Journals/MT300/10.pdf
Laura King reflects on pedagogies to support equity in primary mathematics when teaching problem solving

Number a disinformation timeline https://atm.org.uk/write/MediaUploads/Journals/MT300/16.pdf
Micheál Ó Dúill traces history and cultures to argue for teaching zero to nine instead of one to ten.

If it hadn’t been for Dave… https://atm.org.uk/write/MediaUploads/Journals/MT300/18.pdf
Barbara Binns reflects on Dave Wilson (1947–2026) with contributions from Geoff Faux and Tony Brown.

#MathematicsTeaching #iTeachMath #MathEd #MathsEd #Math #Mathematics #teaching #pedagogy #didactics #education #design #GraphicDesign #AMiE #MT #MT300 #recursion #DrosteEffect #number

Last chance for Texas teachers to sign up for our summer data science training! Texas teachers can earn up to 3.0 CEUs and a $350 stipend thanks to continued funding from WeTeach_CS. If interested fill out this survey: https://forms.gle/D9keqxY7zF41zUaT9 #iteachmath #ngss #datascience #CS4ALL #CS4YALL @edutooters

Want to earn continuing education credits and gain techniques in teaching #datascience to students attend our Data Science Training! Secure your spot here: http://go.osu.edu/datasciencetraining or here for teachers in Texas: https://docs.google.com/forms/d/e/1FAIpQLSfGzzp_CyNeiOwBH-f_WMKvz9Wy3QvO2xjy13a9Heh2kh1oGg/viewform

We look forward to seeing you there! #Iteachmath #Iteachphysics

New #openaccess article in The Mathematical Gazette:
Optimal play in ‘Guess Who?’

Suggests using questions with an embedded paradox to produce three responses from your opponent - yes, no, or argh paradox head explodes - allowing you to narrow down the suspects more quickly.

The authors say their optimal strategy uses nothing "more advanced than induction and a recursion relation based on elementary probability... Hence Guess Who? could guide an introduction to #GameTheory to interested students through a ‘real-world’ game."

#MathsToday #ALevelMaths #MTBoS #ITeachMath

https://www.tandfonline.com/doi/full/10.1080/00255572.2026.2652912

The solutions are posted for the May #ProblemSolving calendar!
We'll take summer off, but visit calendar posts on my website for #math enjoyment anytime. Share working-out thoughts here/on each post.

#RecreationalMath #iTeachMath #MTBoS #T3Learns #ClassroomMath

https://karendcampe.wordpress.com/2026/05/01/may-calendar-problems-4/

May Calendar Problems

May is upon us and for many that signals the end of the school year. If you need some problems to fill random times in class (half your students taking an AP exam or on a field trip? need a break f…

Reflections and Tangents
It's time for your #TapeDiagramTuesday extra challenge!
Model your solution strategy with a tape diagram.
Then share it with the community!
#iTeachMath
It's time for #TapeDiagramTuesday!Here's what to do:
1. Pick a problem.
2. Solve it using a tape diagram to model your thinking.
- - - - OR - - - -
Give the problem to your students to model.
3. Share your model with
#TapeDiagramTuesday #iTeachMath
It's time for your #TapeDiagramTuesday extra challenge!
Model your solution strategy with a tape diagram.
Then share it with the community!
#iTeachMath
It's time for #TapeDiagramTuesday!Here's what to do:
1. Pick a problem.
2. Solve it using a tape diagram to model your thinking.
- - - - OR - - - -
Give the problem to your students to model.
3. Share your model with
#TapeDiagramTuesday #iTeachMath

New issue of my newsletter: thinking classrooms, coaching, functions and rate of change.
https://www.mathed.page/newsletter/2026-05.html

#mtbos #iteachmath #mathed

May 2026 Newsletter | www.MathEd.page

Henri Picciotto's math education news