Fractal Kitty2d ago
The 252nd Carnival of Mathematics is posted! www.fractalkitty.com/the-252nd-ca... #carnivalOfMathematics #blog #mtbos

The 252nd Carnival of Mathemat...
The 252nd Carnival of Mathematics

Welcome to the 252nd Carnival of Mathematics! This post brings together submissions and other posts from the mathy web. Thanks all for participating. Let's start with the number: 252 * Divisors: 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252 * Prime factorization:

Fractal Kitty
Fractal Kitty2d ago

The 252nd Carnival of Mathematics is posted!

https://www.fractalkitty.com/the-252nd-carnival-of-mathematics/

#carnivalOfMathematics #blog #mtbos

The 252nd Carnival of Mathematics

Welcome to the 252nd Carnival of Mathematics! This post brings together submissions and other posts from the mathy web. Thanks all for participating. Let's start with the number: 252 * Divisors: 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252 * Prime factorization:

Fractal Kitty
Peter Rowlett4d ago

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

Karen Campe5d ago

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
Fractal KittyMay 18

new post on fractal kitty -

https://www.fractalkitty.com/inquiries-week-9-mod-multiplication/

#indieweb #mtbos

Inquiries-Week 9: Mod Multiplication

Thanks to Sam Graf for introducing me to this and suggesting some toys. Introduction Multiplication tables can be fun. Line up your numbers, multiply, and find patterns. Like with 5x5, we can fill it out and highlight symmetry, divisibility, squares, and so much more. In this inquiry, we're going to

Fractal Kitty
HenriMay 14

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

Karen CampeMay 1

The May #ProblemSolving Calendar is here! Solve yourself or w/your students & share your working-out thoughts here or on the blog.

*special theme* -- Function Composition #Algebra2 #precalculus

#iTeachMath #MTBoS #T3Learns #RecreationalMath #MathsToday #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
Show threadcognitively accessible mathApr 29
@joshg I wonder if Geogebra has things?
I share the frustration --> it's folks like @KarenCampe who have been awesome at making things that work for my folks who benefit when even the most basic things made visual. And I sorely miss #mtbos -- there might be a few more people over on bsky.com ...
josh g.Apr 29

just trying (and failing) to find an online math activity about reading data off of a graph has drained me. how are there not half a dozen Desmos Classroom activities for this. why can't I find them. why is "read data from a line graph" so hard to google. why isn't the vibrant math teacher social media community of the 10's still a thing (#MTBoS). why am I so tired

(I found Dapper Cats, it's too advanced for them since it's getting into scatter plots, I don't care, they'll learn something today and I'm using it and asdlkfmasklfma)

Fractal KittyApr 23

New post with the pentomino toy:

https://www.fractalkitty.com/inquiries-week-8-fence-maxing/

I hope to have a follow up post on it in the next day with another extension.

#pentominoes #mtbos #geometry #optimization #iteachmath

Inquiries-Week 8: Fence Maxing

Introduction Pentominoes are shapes made from 5 squares joined edge-to-edge. There are 12 of them: Next, let's define what an enclosed area is with these shapes. The pentominoes must create a fence where they touch edge-to-edge with no overlaps. Note that corners touching is not closed because it is not

Fractal Kitty