iiinova — where your digital self keeps evolving

Dan Wekselgreene @dwekselgreene.bsky.social · 24/09/2026

I wanted to give my algebra 2 students something to do with complex numbers beyond computing, but not needing trig, e, etc. So I made this set of tasks to explore connections to geometric transformations. I think they got a lot out of it! #iteachmath #mtbos drive.google.com/file/d/1IMGt...

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Dan Wekselgreene @dwekselgreene.bsky.social · 09/09/2026

Finally got a few sets of @hpicciotto.bsky.social ‘s Lab Gear and introduced it in #MathsToday. You can do a lot more than with standard algebra tiles. Looking forward to trying the various explorations and activities to see what emerges. Does anyone else here use these? #iteachmath #mtbos

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Dan Wekselgreene @dwekselgreene.bsky.social · 05/09/2026

In algebra 2, we've been working on analyzing the term/factor structure of sub-expressions (using tree diagrams and parsing marks). Students are doing well! On Tuesday, we'll layer in the distributive property and how it supports transformation in either direction. #mtbos #iteachmath

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Dan Wekselgreene @dwekselgreene.bsky.social · 27/08/2026

I’m designing a workshop series (3 1-hour sessions) for 11th & 12th graders to show how to use @desmos.com for exploring, problem solving, and creating, not just graphing. I have ideas for what to prioritize but I’d love to hear what others would focus on in or do in that time. #mtbos #iteachmath

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Dan Wekselgreene @dwekselgreene.bsky.social · 12/04/2026

I just listened to this. What a fantastic set, and excellent sound quality. Just learned about this collection and looking forward to digging in.

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Dan Wekselgreene @dwekselgreene.bsky.social · 14/02/2026

“Yet, what is any ocean but a multitude of drops?” David Mitchell, Cloud Atlas

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Dan Lewis @4301maths.bsky.social · 06/01/2026

It’s not quite what @dwekselgreene.bsky.social is doing, but inspired by a general idea, put these together for expanding and collecting like terms #MathsToday #ukmathsteachers

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Dan Wekselgreene @dwekselgreene.bsky.social · 23/12/2025

My 6 yo is always busy with projects. Currently, she is designing party hats for her dolls. I told her it was really impressive and she said “what? I’m just cutting out triangles, rolling them up, and taping them.” I asked her how she knew to do that and she said “I just saw it in my head.” #tmwyk

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Catriona Agg @catrionaagg.bsky.social · 11/12/2025

Y12 started graph transformations today, so to warm up we did these function notation completion table. I had a lot of fun constructing this task, especially making the second table so that as many cells as possible could be filled. #MathsToday #ALevelMaths

Two completion tables with rows for x, f(x) and then a variety of transformations of f(x). In the first table, the top two rows are filled in. In the second, the first row and various other cells are filled in. The task is to complete as much of the table as possible.

Answers to the previous task. In the bottom row, one of the values has been changed to 66. Some cells are blank, because it’s not possible to fill them from the information given.

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Dan Wekselgreene @dwekselgreene.bsky.social · 11/12/2025

I made these problems years ago, and have been recycling them since. Does anyone know of a place where more like these could be found? It's time consuming to make good ones. #iteachmath #mtbos drive.google.com/file/d/1qfM3...

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Adrienne Hestenes @ahestenes.bsky.social · 08/08/2025

Had an extra day with one class compared to others today, so we tried out a @mathforlove.bsky.social activity “Squarable Numbers”. Had 100% participation and lots of good discussion. #iTeachMath #MTBoS mathforlove.com/lesson/squar...

Students work on graph paper showing her square disections into smaller squares.

Photo shows a students work on a mini whiteboard. A 9 by 9 square is drawn and students is dividing it into smaller squares.

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Dan Wekselgreene @dwekselgreene.bsky.social · 24/07/2025

I’m staring at this chair in a waiting room. The more I look at it, the more it’s making me feel agitated. Is it just me? #mtbos #iteachmath

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DavidPetro314 @davidpetro314.bsky.social · 20/07/2025

[New Post] Ontario Math Links-My favourite #math related links from this week: ontariomath.blogspot.com/2025/07/math... Links & help from @jennalaib.bsky.social @howiehua.bsky.social @kurt-salisbury.bsky.social @dwekselgreene.bsky.social @theericklee.bsky.social & more #MathChat #MTBoS #iTeachMath

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Desmos Studio @desmos.com · 16/07/2025

Me? Typos? Never… When you save your graph, the link now automatically updates with your latest saved edits. Learn more about saving and sharing your graphs in the Desmos Help Center: help.desmos.com/hc/en-us/art... #iteachmath

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Anna @ampacura.bsky.social · 17/07/2025

Math + Mom + Books + Life: I really am a Desmos Fellow! mathmomlife.blogspot.com/2025/07/i-re... #mtbos #iteachmath #mathchat #desmos

mathmomlife.blogspot.com

I really am a Desmos Fellow!

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Dan Wekselgreene @dwekselgreene.bsky.social · 16/07/2025

I was baking cupcakes with the 6 yo and (of course) did fraction work with her. I got out the 1, 1/2, and 1/4 cup measures and asked her questions about them, had her read the symbols, etc. I told her we needed 3/4 cup of sugar and asked her how we should do it.

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Dan Wekselgreene @dwekselgreene.bsky.social · 13/07/2025

Playing Mastermind with my 6 year old inspired me to make this in #Desmos. I discovered I'm a lot worse at guessing than I thought! #MTBoS #iteachmath classroom.amplify.com/activity/687...

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Dan Wekselgreene @dwekselgreene.bsky.social · 01/05/2025

Launch for tomorrow's polynomial division lesson. #iteachmath #MTBoS

Can you solve the puzzle? What goes in each blank of the area model?
A 2 row by 3 column array is shown. To the left of the array, a 2x is shown in row 1 and a 3 is shown in row 2. A 10x^3 is shown in the 1st row, 1st column cell. The rest of the cells and the 3 spaces above the first row all have question marks. Under the array, the total area is given as 10x^3 + 23x^2 – 4x – 24.

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Dan Wekselgreene @dwekselgreene.bsky.social · 12/02/2025

My new favorite method for practicing #French: I read Percy Jackson in French and translate out loud to English in real time as my 10 yo follows along in the English text and corrects me as I go. I mean the first chapter is about vaporizing his math teacher by accident so we’re off to a good start!

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Kathy H @kathyhen.bsky.social · 18/12/2024

Math friends - Amplify Desmos Math has just opened up applications for their next group of Fellows. Being a Desmos Fellow has been the best PD I have done in 25 years. It’s an incredible community. Please consider applying! #mtbos #ITeachMath amplify.com/desmos-fello...

amplify.com

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Nick Covington @covingtonedu.bsky.social · 12/12/2024

A revelation that hit me during my conversation w/ @pernille.bsky.social is the tension & pressure of training American teachers to be superheroes needed to rescue kids from failing economic systems while ignoring those systemic failures. The demand to be superhuman is ultimately dehumanizing.

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Mandy Jansen @mandymathed.bsky.social · 11/12/2024

Rights of Learners! Conversation between Olga Torres, Crystal Craig, & Priya Prasad: "It’s not that one person has better thinking than the other. It’s that everyone has different ways of thinking or viewpoints that create the opportunity to reflect [& revise]." www.tandfonline.com/doi/full/10....

tandfonline.com

Rehumanizing mathematics education with the RotL through defiance, trust, and love: A conversation with Olga Torres

In this article, we engage in a discussion about how we came to Torres’ Rights of the Learner (RotL) and how these ideas can transform the way we teach mathematics and the ways our students learn m...

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Dan Wekselgreene @dwekselgreene.bsky.social · 09/12/2024

I wanted to share a few student work examples of the Math Language Routine #StrongerAndClearer that show how much of an improvement there can be without the teacher giving any feedback, from both language learners and English fluent students. bit.ly/4f92vJN #UDL #iTeachMath #MTBoS #edusky

docs.google.com

Stronger and Clearer Student Examples

Student A - First Draft (ML student)

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Dan Wekselgreene @dwekselgreene.bsky.social · 09/12/2024

I handed out a copy of hand-written worked solutions for a task. Student quietly to a friend: "what kind of name is 'Exemplar'?!" 😂 #iteachmath #mtbos

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Leah Simon @simonsaysmath.bsky.social · 05/12/2024

We're hiring an Accessibility Specialist on the Amplify Desmos Math 6-12 team! If you're interested in making the curriculum accessible for all students, please consider applying! amplify.wd1.myworkdayjobs.com/en-US/Amplif... #desmosclassroom #iteachmath

amplify.wd1.myworkdayjobs.com

Accessibility Specialist, 6-12 Math

A pioneer in K–12 education since 2000, Amplify is leading the way in next-generation curriculum and assessment. Our core and supplemental programs in ELA, math, and science engage all students in rig...

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Nick Covington @covingtonedu.bsky.social · 04/12/2024

What I don't understand is how the United States spends 154 hours on math instruction each year, 20hrs more than the international avg, & 40hrs more than high scoring EU countries like Finland & England. In fact, you'd think there was an inverse correlation between instructional time and outcome. 😵‍💫

Chart from TIMMS 2019 showing instructional time spent on math where the United States spends 154 hours per year, easily the top quartile, and about 20 hours above the international average

2023 TIMMS league tables for avg math achievement: Singapore, Chinese Taipei, South Korea, Japan, Hong Kong, England, then further down, US, Israel, Azerbaijan, etc.

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Dan Wekselgreene @dwekselgreene.bsky.social · 03/12/2024

In #mathstoday we reviewed Pythagorean Theorem. I used a #desmos activity that worked pretty well. I started with two proof without words puzzles adapted from @mathtechcoach.bsky.social as a way to ground it visually and built from there. teacher.desmos.com/activitybuil... #iTeachMath #MTBoS

teacher.desmos.com

Pythagorean Theorem Review

Tile Puzzles adapted from https://teacher.desmos.com/activitybuilder/custom/5adc7bfced2ada678516940e by Steve Phelps

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Dan Wekselgreene @dwekselgreene.bsky.social · 03/12/2024

Wow, the mathematical thinking that my little guy is doing while staying up late organizing his baseball cards into various categories is really fun to watch. He just reasoned his way into locating his missing Juan Soto. #tmwyk

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Dan Wekselgreene @dwekselgreene.bsky.social · 28/11/2024

I just made a #Zukei puzzle template with correctness check in #desmos. It's fairly easy to create additional problems with it. I'll use some puzzles like this in next week's coordinate geo unit. #MTBoS #iteachmath ♾️ teacher.desmos.com/activitybuil...

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Robert Kaplinsky @robertkaplinsky.com · 27/11/2024

I just created Blue Sky accounts for Open Middle (@openmiddle.bsky.social) and Grassroots Workshops (@grassrootsws.bsky.social). My hope is to start sharing a lot more content on this platform, so please give these accounts a follow.

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Dan Wekselgreene @dwekselgreene.bsky.social · 25/11/2024

When I moved to CA years ago, I lived in San Jose, and through all the people I met and the work that I did, my world view expanded exponentially. #ManuChao ‘s Clandestino always brings me right back to that time. I’m happy he’s released a new album after 17 years! music.apple.com/us/album/viv...

music.apple.com

Viva Tu by Manu Chao on Apple Music

Album · 2024 · 13 Songs

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Dan Wekselgreene @dwekselgreene.bsky.social · 24/11/2024

Does anyone know if you can combine individual #feeds into a single aggregate feed in #bluesky?

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Dan Wekselgreene @dwekselgreene.bsky.social · 23/11/2024

This was the perfect listen for driving home calmly in the rain. music.apple.com/us/album/fee...

music.apple.com

Feels by Animal Collective on Apple Music

Album · 2005 · 9 Songs

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Dan Wekselgreene @dwekselgreene.bsky.social · 22/11/2024

I want to share the #desmos fellows project I put together earlier this year. It's a 3-part sequence that moves from adding lines visually to making sign charts of factored polynomial functions. bit.ly/411q18q #MTBoS #iteachmath ♾️

bit.ly

Desmos Fellows Project - Multiplying Lines

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Dan Wekselgreene @dwekselgreene.bsky.social · 22/11/2024

Oh no my 8 year old just developed a liking for my Spindrifts.

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Dan Wekselgreene @dwekselgreene.bsky.social · 22/11/2024

It’s kind of nice talking about elementary math ideas while cooking dinner. ♾️

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Dan Wekselgreene @dwekselgreene.bsky.social · 22/11/2024

Well it was raining and lots of kids are sick. I had like 35% of students absent today. Between that and my first activity taking twice as long as expected, gotta try this again next week 🤣

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Dan Wekselgreene @dwekselgreene.bsky.social · 21/11/2024

At a PD today, we examined the principles behind the Math Language Routines (such as Stronger & Clearer and 3 Reads). 1) Support sense-making 2) Optimize output 3) Cultivate conversation 4) Maximize linguistic & cognitive meta-awareness It's a great resource! #MTBoS #iteachmath stanford.io/3Zfua78

stanford.io

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Dan Wekselgreene @dwekselgreene.bsky.social · 19/11/2024

Here's a linear programming activity I've been iterating on in #desmos. It's intended as a scaffold for students to practice writing inequalities and the profit function to model the situation. It's a challenge to fit it all onto one screen. ♾️ #MTBoS #iteachmath teacher.desmos.com/activitybuil...

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Alex Shevrin Venet @asv.bsky.social · 17/11/2024

I wrote two books for teachers, Equity-Centered Trauma-Informed Education and Becoming an Everyday Changemaker. Both are written to help teachers transform schools into communities where everyone feels safe and cared for. 💜💕

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Leigh Nataro @mathteacher24.bsky.social · 16/11/2024

#MTBoS This is a great resource to help all students see themselves as mathematicians. Very powerful stories. maa.org/wp-content/u...

maa.org

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Dan Wekselgreene @dwekselgreene.bsky.social · 15/11/2024

"A negative and a negative is positive." Is that always, sometimes, or never true? I used this #desmos activity to help my students visualize how negatives work with each operation. ♾️ #iTeachMath #MTBoS teacher.desmos.com/activitybuil...

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Dan Wekselgreene @dwekselgreene.bsky.social · 13/11/2024

I wanted to share this Master's thesis written by Ethan Merlin (who I've never been able to locate to properly express my appreciation!). ♾️ #MTBoS #iteachmath #mathsky A 🧵 👇 drive.google.com/file/d/15Tq-...

Displays an example of the parsing process. Two math expressions are shown, 2 + 2 * 2 and 3 + 3(7 + 3). Terms are underlined with red lines and factors are separated with teal slashes. The problems are simplified step by step. The text at the top reads "Addition has the lowest precedence in EMA, so it is done last. Find the value of each underlined chunk first, then add together."

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Dan Wekselgreene @dwekselgreene.bsky.social · 12/11/2024

I was going to delete my #twitter account, but it seems that there is nothing to stop someone from making a new account with your username. I've seen people say they've deleted their accounts... are you worried about this, or is there a way to prevent it?

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Dan Wekselgreene @dwekselgreene.bsky.social · 12/11/2024

I didn’t realize at first that this book would be told from the perspective of a neurodivergent narrator. It’s a character study where not much “plot” happens and seems kind of dark at first, but is really warm-hearted, satisfying, and funny. www.simonandschuster.com/books/Intere... #BookSky 💙📚

simonandschuster.com

Interesting Facts about Space

A fast-paced, hilarious, and ultimately hopeful novel for anyone who has ever worried they might be a terrible person—from the bestselling author o...

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Dan Wekselgreene @dwekselgreene.bsky.social · 11/11/2024

I'm working on graphing linear inequalities now. I've needed to emphasize the graph-algebra connection. I started with only non-strict problems for a couple days. Then I introduced the idea of the dashed boundary line with this sequence. I thought it worked well! (see presenter notes) bit.ly/40E47YF

Graph of a linear inequality showing how the shaded area represents an infinite number of individual points.

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