I have always liked the work that @AndrewStadel does. So it is interesting to hear who he has looked to for guidance Curriculum Tags: All https://www.andrewstadel.com/blog/mathgiants
New Blog and YouTube post:
5 Math Giants who have Inspired Me.
• there's a 6th (most important) BONUS giant.
www.andrewstadel.com/blog/mathgia...
I hope they inspire you too and I'd love to hear who has inspired you. #iteachmath #mtbos
New post: Permission to Go Off Script
Building Thinking Classrooms practices are powerful—but they’re not all-or-nothing
fawnnguyen.substack.com/p/permission...
New Blog Post: "Pythagorean Party!" technology activities and visuals to celebrate pythagorean theorem & related concepts.
#MTBoS #iTeachMath #T3Learns #geometry #MathSky #MathsToday #RecreationalMath
karendcampe.wordpress.com/2025/07/30/p...
I remember learning about the associative property in school and remembered it was so boring, but it can help us with mental math! pic.twitter.com/n8S6Ga0Fjc
I am a big fan of dynamic geometry. Whether it be Geometer's Sketchpad, Geogebra or Desmos. So I always appreciate when someone helps students work with any one of those tools. I also have a series of videos that walk you through some constructions. If you don't know a construction is when you build a geometric item that always keeps its properties (like a square). That is when you drag any of the points, it may change size or orientation but not loose the properties of that geometric figure. You can see those here Curriculum Tags: Gr7, Gr8, MTH1W https://fawnnguyen.substack.com/p/first-desmos-geometry-lesson
Real coin flips are ~49-51 not 50-50 www.scientificamerican.com/article/scie...
But you can guarantee equal probability with a simple trick! Flip 2x in a row starting with the same side up.
HT->call it H
TH->call it T
HH,TT->try again
(due to von Neumann en.wikipedia.org/wiki/Randomn...)
#🧮 🧪 1/4
I never liked the idea of memorizing math facts. I have always thought it was better to internalize them and if you are looking for a good way to do that, try this out Curriculum Tags: All https://x.com/howie_hua/status/1934960810138259951
My new #math series in the New York Times, "Math, Revealed," is aimed at everyone, whether you love math or not. Have a look! You can read it here for free without a subscription. https://t.co/M6xe5i1vPq
Teaching area formulas as how the shape is related to a rectangle helps build conceptual understanding.
Here's how to derive the area formulas of a parallelogram, triangle, trapezoid, kite, regular hexagon, and even a circle from the area formula of a rectangle: pic.twitter.com/QgiawtwJMK
It's time to kick off #MathPhoto25 with #squares! Hunt for square shapes and perfect square numbers. Take photos & share on Bluesky using the hashtags #MathPhoto25 and #square. Please add alt text to your photos for increased access. #ITeachMath
Thinking Thursday: Quarter the Square
People learn math by playing with ideas. A math journal can be like a science lab book.
#homeschooling #mathjournal #letsplaymath #mtbos #iteachmath
I love this train of thought set of posts to solve this area problem with a surprising result. Take the time to go through @DavidKButler's solution, at least to see the surprising result but also to get a great example of the art of problem solving. Curriculum Tags: All https://bsky.app/profile/davidkbutler.bsky.social/post/3lqdbrayyx22v
Ok let me #TryMathsLive with this from @mathforge.org …
I would definitely use this problem when dealing with equations and applications of equations to have kids calculate things like the speed when hitting the water, the speed or the height, which should all be attainable from the time of the fall. Curriculum Tags: MPM2D, MCR3U, MCF3M, MBF3C https://x.com/davidpetro314/status/1927069513075277858
Les Stewart typed out every number from one to one millions on his typewriter, not in number form, but spelled out. It took him 16 years. pic.twitter.com/hnwskwkZ9U
Although this activity had a lot of moving parts, I think it was a very cool application of dividing polynomials Curriculum Tags: MHF4U bit.ly/PolyCodeOAME
Some tips on building a shared culture in #math class from @lpconnaughton.bsky.social at the #OAME2025 conference docs.google.com/presentation... #MathChat #MTBoS #iTeachMath
The new pope was a math major in college. So if a students asks you what types of jobs there are for math majors, well, there you go. Start studying those higher powers!
Wait wait wait, are you saying reasoning is important in endeavors that require reasoning??? Another aspect why the systematic dismantling of liberal arts education is so tragic.
I really like this problem because you can take a brute force method with skills as complex as those found in gr7 & 8 or take it all the way to Calculus. I threw my hat with a dynamic geometry solution here. Curriculum Tags: All https://x.com/jamestanton/status/1908437200653468022
Warm up: Where on the diagonal should the dot be placed so that the sum of areas of the two squares is as small as possible? pic.twitter.com/S51tNtmKJM
This is the first time I have seen anyone ever articulate up front that Proofs Without Words require the reader to put in effort. Seriously it needs to be much clearer on the box that they are actually Proofs That Need You To Add Words.
If you let one row of fish follow their nose in Escher’s woodcut “Circle Limit III”, all the rest are forced to swing around wildly.
The fish here are strung out along “hypercycles”: curves in the hyperbolic plane that are equidistant from a given hyperbolic line, but no two … pic.twitter.com/iFvjEd5xoI
I never get tired of this animation to show where the area of a circle formula comes from. You can also use it in Calculus when talking about thinner and thinner slices. Curriculum Tags: Gr7, Gr8, MCV4U https://x.com/mathladyhazel/status/1880470241601622391
There are some good comments in the feed and I like the way the steps are laid out for adding integers but the line that resonates with me is the last part of this: "Get students really comfortable placing positive and negative numbers on number lines. Don't take this for granted" Curriculum Tags: All https://fivetwelvethirteen.substack.com/p/conceptual-understanding-doesnt-happen
New post: conceptual understanding doesn't happen all at once.
fivetwelvethirteen.substack.com/p/conceptual...
#iteachmath #mtbos #edusky
NEW Blog Post: ‘Four ways of seeing education, and why "best practice" is a myth’
Why do educators disagree about 'best practice'? Understanding competing visions of education's purpose reveals why universal solutions fall short.
amiealbrecht.com/2024/12/11/f...
Looking for a fun, free winter activity to cap off the year? ☃️
With this new holiday activity in Desmos Classroom (using Polypad of course 😀), students can design their own winter wonderland! They’ll color snowmen, build their own snowflakes, and more. ❄️
Check it out: bit.ly/4ix92Ru
I wrote about how I use the @desmos.com data collection screen for a Fermi problem routine in my classroom www.edutopia.org/article/tips... and here is my Desmos collection of those screens: teacher.desmos.com/collection/6...
Any other Fermi problem fans in the #mtbos #iteachmath ♾️ community?
When I looked at this I thought I would just start with a brute force method but after one calculation it was clear I should look at something more logical. And yes, it was a non intuitive result but it made sense. Curriculum Tags: Gr7, Gr8, MTH1W https://x.com/howie_hua/status/1867334829991506197
In my latest Edutopia article, Stanford prof. Denise Pope points out the glaring problem with grades:
“The first thing kids would do is go to the back of the paper, look at the grade, and never read my comments."
9 reasons why teachers should grade less:
www.edutopia.org/article/why-... #EduSky
December #ProblemSolving Calendar is here! Enjoy & share your process here.
Also: BONUS articles on Mathematical Curiosity.
Sign up to get an email for new posts 😊 (help me crack 100 followers?)
#MTBoS #iTeachMath #RecreationalMath #MathSky #MathsToday
karendcampe.wordpress.com/2024/12/01/d...
We should embrace the fact that area models with Whole Numbers, Mixed Numbers and Pure Decimals are all exactly the same.
#MathSky #EduSky #ElemMathChat
Area changing illusion 👀 Why does the area seem to change? 🤔 For an explanation as to why this happens, see youtu.be/6leIwa3PA2E?.... #MTBoS #ITeachMath #math #maths #illusion #paradox #edusky
I think @Howie_Hua sums up what I think about these types of questions. Don't get me wrong, I think they are great. But they also show students that algebra doesn't have to be as hard as it seams. Curriculum Tags: All https://bsky.app/profile/afreeparticle.com/post/3lcjn5cqawc2r
Trying to have people solve a system of linear equations on social media:
#math #ITeachMath #EduSky
We tried a mashup last week: #OpenMiddle – Mild, medium, and spicy results lead to more engagement and strength-finding.
jplgough.blog/2024/11/24/o... @robertkaplinsky.bsky.social
I absolutely love these Congruence puzzles by @unsolvedmre.bsky.social so I've turned them into an online worksheet. Thanks for letting me share Matt. Perfect for LogiqBoard 🌟 #EduSky #maths
logiqboard.com/worksheets/W...
This is an incorrect calculation of the area of a triangle by a young Babylonian student at school around 1900-1600 BCE, excavated from the ancient city of Kish.
It’s a moment in the history of math, of education, of children, of mistakes, of people being people. I love it.
Humans have been using spreadsheets for millenia!
But we still don't teach spreadsheets* in K-12 (the little hill I plan to die on)
#iteachmath #mtbos
*with exception! don't @ me
