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/
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)
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.
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
Going up by 600% means 7x as much, bc we add 6x original to original amount.
Going from $600 to $10 is amount of change div by original amount --> 590/600 = 98.3% decrease.
I updated my "Prime Percents" post explaining successive percent changes
#iTeachMath #MTBoS
with help from @kityates, Howie Hua, and @AstroKatie
https://karendcampe.wordpress.com/2024/07/26/prime-percents/#update-Apr26
New blog post! "Really Radical" talks about how to handle teaching a tough topic in #algebra2 so students aren't lost in the weeds.
#iTeachMath #MTBoS #T3Learns #ClassroomMath
https://karendcampe.wordpress.com/2026/04/22/really-radical/
I got tired of counting squares. (prototype)
I got 122 today playing with it - what can you get?
The first issue of The Mathematical Gazette with me as Editor has arrived in the post!
Non-subscribers can read my editorial (and some other papers in this issue) for free at https://www.tandfonline.com/doi/full/10.1080/00255572.2026.2617021
The April #ProblemSolving Calendar is posted & that's no fooling!!
Plus March solutions as well.
Share your working out & thoughts here or on the post.
#iTeachMath #MTBoS #MathsToday
#RecreationalMath #ClassroomMath
https://karendcampe.wordpress.com/2026/04/01/april-calendar-problems-4/
Karen Campe
cognitively accessible math
josh g.
Fractal Kitty
Peter Rowlett
