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@ahestenes.bsky.socialSep 17, 2026, 1:57 AM

Working on multiplying matrices in #MathsToday

#Algebra2 #iTeachMath

A whiteboard showing student 
work on multiplying matrices.  You can see the arm of a student holding a whiteboard marker pointing to something in the work as they discuss.  The whiteboard work includes multiplying a 2x2 matrix by a 2x4, writing the matrix dimensions checking to see if they can be multiplied, and multiplying a 3x1 matrix by a 1x3 matrix.
@dawsonh.bsky.socialSep 17, 2026, 1:48 AM

The prompt was "The answer is 24. What might the question be?" This student said how about 12 groups of "niso"? Cree for 2. Worked for me! #mtbos #iteachmath

@pwharris.bsky.socialSep 17, 2026, 12:30 AM

It's time for #MathStratChat!

Rules: post your favorite or a clever solution! It's also fun to comment on other's strategies.

Tell us about your reasoning.
Like/share so others can see!

#MathIsFigureOutAble #MathStratChat #MTBoS #ITeachMath #MathEd

@jjsimon24.bsky.socialSep 16, 2026, 11:06 PM

A lot of my students are still shaky on integer operations (adding, subtracting, multiplying, dividing), and it's really tripping them up once we get into equations and inequalities. I'm trying to build that fluency back up without eating too much of my instructional time. Thoughts? #ITeachMath

@jjsimon24.bsky.socialSep 16, 2026, 11:05 PM

My students tune out on the practice platforms we have (ILC, Progress Learning) and do not complete their homework. For those teaching middle school, has any tool actually kept kids engaged on skills practice? #ITeachMath

@jjsimon24.bsky.socialSep 16, 2026, 11:04 PM

How do you handle kids who are multiple grade levels behind without wrecking your pacing for everyone else? I teach on-grade 7th math but a chunk of my students need arithmetic support. Small-group pullout during work time? A tool that runs in the background? What's actually worked? #ITeachMath

@mrvalencia24.bsky.socialSep 16, 2026, 9:33 PM

My @iborganization.bsky.social IB Application & Interpretations class got to #MathPlay 🧮 with probability via @mathmedic.bsky.social 🏀

#ITeachMath #MathsToday #EduSky #Math #Maths #EdTech

🔗👇
nathanieldykhouse.github.io/MMDCFN/PAGES...

@karencampe.bsky.socialSep 16, 2026, 6:34 PM

Words matter! Watch what words we use to describe ourselves / our students as learners.
This doc compiles 3 ways we have to be careful about words we use in math class.
-name/discuss math items & notation
-talk abt learning process
-describe learners
#iTeachMath
docs.google.com/document/d/1...

@mathmisery.bsky.socialSep 16, 2026, 5:23 PM

whoops, a roller skater got through!

--
#HexSumGame #gamedev #iTeachMath

You'll need a Pro account for today's Zombie game, but other modes are available at HexSumGame.com

Zombie mode in HexSum on a radius 5 board. Many zombies are seen on the outer rings. A lone zombie with roller skates has made it to the center hex.
@math4all.bsky.socialSep 16, 2026, 12:02 PM

How do we create math classrooms where every child is doing the thinking, rather than simply doing the work? Thursday, Sept. 17 at 7 PM EST www.facebook.com/math4allshow or tinyurl.com/5hdrd5zd @mollyvokey.bsky.social @heidisabnani.bsky.social #iteachmath #iteachmaths #math4all

@mikejacobs.bsky.socialSep 16, 2026, 11:13 AM

Start your day with this #yohaku. Fill in cells with 9 different factors of 520 to get totals shown in each row/column. #mathsky #iTeachMath

Use 9 different factors of 520  in a 3 by 3 grid. The numbers in the top row add to 79. The numbers in the middle row add to 86. The numbers in the bottom row add to 116. The numbers in the left column add to 182. The numbers in the middle column add to 49. The numbers in the right column add to 50.
@mathgm.bsky.socialSep 16, 2026, 3:50 AM

I'm starting up a #MuAlphaTheta Chapter at my school. I want to cultivate a society at my school where passionate #mathematicians can develop further. I'm working on the application, chose the members for a first year, and our first meeting is Friday. Any suggestions? #mathsky #iteachmath #edusky

@pwharris.bsky.socialSep 16, 2026, 12:55 AM

#TryThisTuesday

Relational Thinking - using what you know to reason.

How are you thinking about this problem?

Do you like problems like these!!! Join a workshop for MORE: www.mathisfigureoutable.com/workshops

#MathIsFigureOutAble #MTBoS #ITeachMath #MathEd

@mathillustrated.bsky.socialSep 15, 2026, 10:08 PM

Explore two sets of ready-to-use classroom materials featuring selected TIMSS mathematics tasks and practical teaching guidance for Grades 3–6 and Grades 6–10. #iTeachMath
www.iea.nl/publications...

@karencampe.bsky.socialSep 15, 2026, 4:43 PM

Groovy Graphing w/TI-84 Evo post now updated to include fabulous Quick Zoom & Conics Analysis on new TI84 Evo OS.
#EvoDoesThat
#MTBoS #iTeachMath #T3Learns
@ticalculators.bsky.social #TI84

@johngolden.bsky.socialSep 15, 2026, 2:34 PM

#iteachmath one student teacher is wondering about how to better use LMS. Does anyone know of a teacher writing or speaking about that? #mtbos

@math4all.bsky.socialSep 15, 2026, 12:02 PM

Dr. Kristopher Childs join us for our first show of Season 6! Thursday, Sept. 17 at 7 PM EST www.facebook.com/math4allshow or tinyurl.com/5hdrd5zd @mollyvokey.bsky.social @heidisabnani.bsky.social #iteachmath #iteachmaths #math4all

@segarrogers.bsky.socialSep 15, 2026, 9:33 AM

#UKMathsChat #iTeachMath
[The values in boxes represent areas.]

A rectangle partitioned into four rectangles using two perpendicular lines. The area of the lower left rectangle is 50. The combined area of the upper and lower left rectangles is 80. The height of the lower right rectangle is 6. Find the area of the original rectangle.
@karencampe.bsky.socialSep 15, 2026, 2:19 AM

Keys For Success - Evo Edition post now updated to include new Math Template Palette on new TI84 Evo OS.
#EvoDoesThat
#MTBoS #iTeachMath #T3Learns
@ticalculators.bsky.social

@karencampe.bsky.socialSep 15, 2026, 12:23 AM

THere's some fun math to be done with successive percent changes... check out this post "Prime Percents" (which also includes the reason why my political leader can't cut prices by 600%)
#iTeachMath
karendcampe.wordpress.com/2024/07/26/p...