Fast forward to today.
The same student is now consistently achieving A-B grades due to their increased engagement and participation, and their marks are soaring across the board.
Just recently, they earned their first-ever 'A' in any subject... and it was in Maths!
#iteachMath #Mathematics #StrengthsBasedLearning #Dyscalculia
4/8
I scored 100% in 68 seconds!
https://vole.wtf/primesweeper/
A new inquiry post on my fractalkitty blog:
https://www.fractalkitty.com/inquiries-week-3-r-and-rotate/
I started making a separate site for tools as I work on this series, and hope to share more soon. For now, it is under construction.
Two books by Augustus De Morgan digitized for Project Gutenberg, one about algebra and geometry, the other about calculus. Their style is formal by today's standards, but each may be useful for self-study by students and teachers. Read more:
https://www.diffgeom.com/blogs/free-online-math-materials/expositions-by-de-morgan/
#Math #ITeachMath #ProjectGutenberg
"An Invitation to Real Analysis" should be out in October. I hope the book helps students around the globe learn real analysis for many years into the future. In any event, getting to tell this story of numbers, sets, functions, sequences and limits, and function spaces is something I got to do in my time here on earth.
If you are teaching introductory real analysis in Winter/Spring 2026 or beyond, I am deeply grateful for your consideration. The book was written for courses covering material from basics of sets and proofs at one endpoint to metric spaces and selected applications in function spaces at the other. There are over 600 exercises at all levels of challenge. Selected hints, answers, and solutions are in the back, and a complete solution manual will be available for instructors.
Throughout, I've striven for readability, simplicity, networks of conceptual connections, and consistency of notation and terminology. Consistency was not as straightforward a goal as I first expected.
There are a few noteworthy choices--such as using descriptive terms in favor of eponyms, and counting starting from 0--that I believe are features even if at first they seem not to be. Other pedagogical choices include using adversarial games systematically to convey analytic definitions, acknowledging the "foreign language" aspects of analysis, and putting material in strict logical order to the extent possible so readers can easily tell at any stage what concepts and results are available for use.
I'll post further details, including the publisher's web page for the book, once I'm formally notified.
Over my years in academia, I wrote or helped create a variety of free online mathematical materials. Phosphene is a meditative geometric solitaire that runs in a web browser. I hope you and your students enjoy the software! Read more:
https://www.diffgeom.com/blogs/free-online-math-materials/phosphene/
Why math hints matter--and how AI can help #iTeachMath #AIEdu #AIinEdu https://www.eschoolnews.com/steam/2025/06/26/why-math-hints-matter-and-how-ai-can-help/
Over my years in academia, I helped create a variety of free online mathematical materials. Pirouette is a Spirograph clone that runs in a web browser. I hope you and your students enjoy the software! Read more:
https://www.diffgeom.com/blogs/free-online-math-materials/pirouette/
When you teach Cartesian vectors, do you draw the basis vectors only at the origin or also at other points in the space? #ITeachPhysics #ITeachMath #Vectors
Here's a real context #geometry question on area & volume.
Home Depot changed the size of their heavy duty small box from last year to this year.
What has been gained/lost? Why do you think so?
Old box: 11" x 17" x 11"
New box: 12" x 10" x 16"
Summer is here! What are my #iTeachMath #MTBoS #MathsToday friends going to do?
This post is several years old but the message is still fresh:
-Read a book
-Learn something new
-Make a plan (to revise, refresh, renew)
#ClassroomMath #MathEd #MathsEdChat
https://karendcampe.wordpress.com/2016/06/03/summer-assignment/
Put these webinars in your calendar! Our next three speakers are true leaders in the MATH EDUCAION world.
Register for FREE: https://tinyurl.com/CMC-Webinars
#iTeachMath @cmcmath.bsky.social @CAMathCouncil
Drafted a 3rd inquiry activity for D3 and D4 play with flips and rotations.
I am hoping it's not to dry. I'll read through it again tomorrow.
In-person Workshop: Join PhET Fellow Leila Kassim on August 7th to unlock free K-12 & intro college resources, evidence-based strategies, opportunities for extended learning and more! Sign up now to supercharge your lessons!
Sign up: http://bit.ly/3sFnWjX 
#iteachmath #iteachphysics
Each of the relations below has non-zero area in ℝ².
Which has the greatest area?
Which has the least area?
How do you know?
#iteachmath
If you're in Austin for the WeTeachCS conference, don't miss our talks!
June 9, 9:45am Data Science: How to Thoughtfully Integrate Science, Math and Computer Science
June 9, 12:45pm Teaching CS and Math Concepts through Creative Calculations of Pi
June 10, 1:30pm Impacting student attitudes about CS through coding integration into science
#CS4Yall #CS4All #iteachmath
Mathematics Teaching 296 now available online https://atm.org.uk/Mathematics-Teaching-Journal-Archive/177731
Design and cover photographs by me
Four free articles for non-members:
Everyone can think mathematically by Tom Francome
Tom Francome explores ways of developing the mathematical thinking of all students, including low attainers.
https://atm.org.uk/write/MediaUploads/Journals/MT296/02.pdf
Book review Learning with AI by Ian Benson
Ian Benson reviews 'Learning with AI' by Joan Monahan Watson published by Johns Hopkins University Press (296 pages, $24.95)
https://atm.org.uk/write/MediaUploads/Journals/MT296/14.pdf
Book review Breaking images by Pete Wright
Pete Wright reviews ‘Breaking images: Iconoclastic analyses of mathematics and its education’, edited by Brian Greer, David Kollosche, and Ole Skovsmose.
https://atm.org.uk/write/MediaUploads/Journals/MT296/15.pdf
Ole Skovsmose—the man who put the critique in critical mathematics education by Peter Gates
Peter Gates has collated this obituary for Ole Skovmose.
https://atm.org.uk/write/MediaUploads/Journals/MT296/16.pdf
I have a new blog post for an inquiry activity on modular arithmetic with The Fibonacci Sequence.
There is a musical toy for listening to patterns.
I regret not drawing a pigeon for this. It may be a later addition.
https://www.fractalkitty.com/inquiries-week-2-modular-fibonacci/
Solutions are posted for the May Calendar of Problems!
No calendars for summer months, but enjoy some #ProblemSolving fun with past calendars anytime!
#RecreationalMath #iTeachMath #MTBoS #MathChat #MathEd #MathsEdChat #ClassroomMath
https://karendcampe.wordpress.com/2025/05/01/may-calendar-problems-3/
