Sign in

Kathy H

@kathyhen.bsky.social
2.7K followers 2.3K following 910 posts

Math teacher, @Desmos certified presenter, Desmos Fellow, @onepeloton enthusiast #mtbos #iteachmath Berkeley, CA

PostsRepliesMedia
Kathy H @kathyhen.bsky.social · 17/07/2026
A Tribute to the Mathematically Marvelous Soccer Ball www.nytimes.com/2026/07/17/s... #MTBoS #ITeachMath
nytimes.com
A Mathematical Tribute to the Soccer Ball (Gift Article)
As the World Cup final approaches, take a moment to appreciate the beautiful symmetries of humanity’s favorite truncated icosahedron.
143
Reposted by Kathy H
Desmos Studio @desmos.com · 18/06/2026
Are you ready to share that Desmos notebook you've been working on? Learn more about logging in, saving, and previewing your work. What question should we answer next? #mathsky #iteachmath
2147
Reposted by Kathy H
Carrie Muir @cmuirmath.bsky.social · 18/06/2026
#ITeachMath #MathSky
071
Reposted by Kathy H
Ilana Horn @ilanahorn.bsky.social · 09/06/2026
I often get asked about fun math enrichment resources for kids, so here's a little thread for those who might be interested... please feel free to add your picks to my list #iteachmath
4288
Kathy H @kathyhen.bsky.social · 04/06/2026
Anyone remember TURDS from the old site? #MTBoS #ITeachMath @triangleman.bsky.social
Bar graph with title “our pool is bigger than skyscrapers”. The vertical axis goes from 0 to 1000 to 1500 ft. The reflecting pool and three skyscrapers are compared.
2152
Reposted by Kathy H
Eli Luberoff @eluberoff.bsky.social · 07/05/2026
.@citizenmath.bsky.social (citizenmath.com) just did something wild. The entire library -- every one of their thoughtfully, beautifully crafted lessons -- is now free.
citizenmath.com
Welcome to Citizen Math
33922
Reposted by Kathy H
Carrie Muir @cmuirmath.bsky.social · 07/05/2026
#ITeachMath #MathSky
043
Reposted by Kathy H
Melynee Naegele @mnmmath.bsky.social · 06/05/2026
Math educators, this one’s for you! Join us for a FREE Summer Math Camp with @mfannie.bsky.social , the “Notice Wonder” Woman! Explore engaging math tasks, strategies to build student thinking, and ideas you can use now. 🗓 July 14, 2026 Limited spots. Register today: bit.ly/4t3RJwb #ElemMathChat
011
Kathy H @kathyhen.bsky.social · 06/05/2026
Open house today at school. It was lovely to see multiple generations of families finding joy in the prompt, The Answers Are, from BTC. #MTBoS #ITeachMath
White board with equations written on it and worksheets with a math prompt.
050
Reposted by Kathy H
Pat Fuller @bannerite.bsky.social · 02/05/2026
When we all vote, we win.
25924
Reposted by Kathy H
Lena Sun @lenasun.bsky.social · 22/04/2026
SCOOP: Two weeks ago, the head of the CDC delayed publication of a report showing covid vaccine cut likelihood of ER visits and hospitalizations by half. Now that report is no longer allowed to be published in CDC’s flagship scientific journal. My latest. 1/2 www.washingtonpost.com/health/2026/...
washingtonpost.com
CDC won’t publish report showing covid shots cut likelihood of hospital visits
The report, which had cleared the agency’s scientific-review process, had been delayed. It now won’t be published at all, people familiar with the decision told The Post.
7238862097
Reposted by Kathy H
Dan Anderson @dandersod.recursiveprocess.com · 23/03/2026
@marybourassa.bsky.social psst (alpha blog reboot) dailydesmos.com/daily-desmos...
dailydesmos.com
Daily Desmos #0 REBOOT | Grav
Grav is an easy to use, yet powerful, open source flat-file CMS
011
Reposted by Kathy H
Amplify Education @amplifyeducation.bsky.social · 21/03/2026
Want to do more with virtual manipulatives? 🧩 Join us for tips to incorporate digital tools (like Polypad and letter tiles) in your daily lessons. ➡️ Save your spot: go.amplify.com/4ppCZGe. #MTBoS #ITeachMath
go.amplify.com
Amplify Classroom | Professional learning webinars
Discover how to implement interactive lessons and tools for math, literacy, and science with our upcoming free Amplify Classroom webinars.
042
Kathy H @kathyhen.bsky.social · 21/03/2026
#MTBoS #ITeachMath hi friends - has anyone heard about proposals acceptances to @nctm.org Denver yet? We were told mid-March :)
310
Reposted by Kathy H
Kit 🏳️‍🌈 @mrkitmath.bsky.social · 06/03/2026
I'm wondering if there any videos of #ITeachMath teachers using @illustratemath.bsky.social curriculum with their students available anywhere. I constantly get asked for exemplar videos by teachers in the districts I support & I wish I had a resource to point them to. #MTBOS #LearnWithIM
251
Reposted by Kathy H
samjshah.bsky.social @samjshah.bsky.social · 04/02/2026
I have lots of (former) math teacher friends who have been writing curricula. If you're interested in an awesome gig in this space, check out BEAM's current offerings (link: www.beammath.org/work-at-beam) It's a GREAT organization (check it out if BEAM is new to you!) #MTBoS #iteachmath Pleast RT
2178
Reposted by Kathy H
Brosephine Wires, Perennial Soup-Lover @joparkerbear.bsky.social · 02/02/2026
“Filming a slow 360 degree pan can show the full surroundings and make it harder for people to claim video footage isn’t real.” Read now or bookmark for later. You could find yourself in a situation tomorrow. We never really know what may happen anymore, even if we stay at home.
wired.com
How to Film ICE
Filming federal agents in public is legal, but avoiding a dangerous—even deadly—confrontation isn’t guaranteed. Here’s how to record ICE and CBP agents as safely as possible and have an impact.
110842
Reposted by Kathy H
Joel Bezaire @joelbezaire.bsky.social · 23/01/2026
I am #hiring a Middle School Instructional Specialist in #Nashville to work with our 5th through 8th grade students and their teachers at University School of Nashville starting in August '26.
125
Reposted by Kathy H
Math 4 All @math4all.bsky.social · 20/01/2026
How can we leverage what we know and love about teaching reading to bring more joy to math class? Deborah Peart Crayton joins us Thursday, Jan. 22 at 7 PM EST www.facebook.com/math4allshow or tinyurl.com/5hdrd5zd @mollyvokey.bsky.social @heidisabnani.bsky.social #iteachmath #iteachmaths #math4all
023
Reposted by Kathy H
KSlatteryResist @kslatteryresist.bsky.social · 18/01/2026
ICE attacks on children will have devastating impacts for generations. STOP these attacks on innocent children, now suffering depression, anxiety and other health impacts. Since when is it okay to allow adults to traumatize children? #Voices4Victory #ProudBlue m.youtube.com/watch?v=aDGe...
m.youtube.com
How ICE raids are impacting children's wellbeing
YouTube video by NBC News
33422242
Reposted by Kathy H
DyakCraft @dyakcraft.bsky.social · 19/01/2026
#knitters, we have a hat to make. payhip.com/b/TqQL1
payhip.com
Melt the ICE Hat Pattern
In the 1940’s, Norwegians made and wore red pointed hats with a tassel as a form of visual protest against Nazi occupation of their country. Within two years, the Nazis made these protest hats illegal...
093
Reposted by Kathy H
Jeanne Theoharis @jeannetheoharis.bsky.social · 10/01/2026
The murder of Renee Good —& the way the Administration is smearing her —is reminiscent of the murder of Viola Liuzzo, a white Detroit mother killed by the KKK while driving marchers home after the Selma to Montgomery march. The FBI had an informant in the Klan car. www.youtube.com/watch?v=d1ds...
youtube.com
Home of the Brave (Bullfrog Films clip)
YouTube video by Bullfrog Films
5253124
Reposted by Kathy H
Math 4 All @math4all.bsky.social · 07/01/2026
Chrissy Newell joins us on Thurs. 1/8 at 7 PM EST www.facebook.com/math4allshow or tinyurl.com/5hdrd5zd @mollyvokey.bsky.social @heidisabnani.bsky.social #iteachmath #math4all
032
Reposted by Kathy H
Duane Habecker @duanehabecker.com · 05/01/2026
Hey folks! Howie Hua will be sharing his amazing wisdom with us on January 15, 2026 from 4pm – 5pm Pacific time. Join us for this FREE webinar! Register: tinyurl.com/CMC-Webi... @howiehua.bsky.social @howie_hua #iTeachMath @cmcmath.bsky.social @CAMathCouncil
Hey folks! Howie Hua will be sharing his amazing wisdom with us on January 15, 2026 from 4pm – 5pm Pacific time. Join us for this FREE webinar!

Register: https://tinyurl.com/CMC-Webinars

@howiehua.bsky.social  @howie_hua  #iTeachMath  @cmcmath.bsky.social
     @CAMathCouncil
021
Reposted by Kathy H
cognitively accessible math @geonz.bsky.social · 02/01/2026
#mtbos mathequalslove.net/new-years-ma...
mathequalslove.net
New Years 2026 Activities and Puzzles | Math = Love
Help ring in the new year of 2026 with these new years logic puzzles and math activities for the classroom.
041
Reposted by Kathy H
Christopher Danielson @triangleman.bsky.social · 31/12/2025
Any Detroit area teachers out there who want to take your pick of a large collection of office supplies? DM me for details ASAP if you’re at all interested.
288
Reposted by Kathy H
Jo Morgan @mathsjem.bsky.social · 29/12/2025
New! My 194th gems post. Ideas, resources and updates for maths teachers. 💎 www.resourceaholic.com/2025/12/5-ma... Hat tips to follow. #mathstoday #ukmathschat #alevelmaths
03721
Reposted by Kathy H
Alt National Park Service @altnps.bsky.social · 28/12/2025
You’ve got a few days left to get your annual National Parks pass without Trump’s face on it.
1543156843
Kathy H @kathyhen.bsky.social · 19/12/2025
Thank you @desmos.com for my amazing snowflake socks. I appreciate being a part of your community!!! #MTBoS #ITeachMath
Pair of feet in foreground wearing blue socks with red and white snowflakes on them. A Xmas tree is in the background.
1100
Reposted by Kathy H
Sara Van Der Werf @saravanderwerf.bsky.social · 17/12/2025
I have not blogged in a long time, but this gem from my blog is perfect for educators this time of year. An easy and fun activity for all - low prep, low stress - students love it. If you need an easy win check out the 5x5 game. www.saravanderwerf.com/5x5-most-ama... #iteachmath #mtbos
saravanderwerf.com
5×5 Most Amazing Just for Fun Game - Sara VanDerWerf
UPDATE DECEMBER 2021 - Simplified Version: I've spent quite a bit of time in K-5 world the last several years. This year I introduced this game to my Elem math Ed students. They loved it. Since they a...
192
Reposted by Kathy H
Steve Walker @stevemaths.bsky.social · 10/12/2025
In #MathsToday just spotted the GCHQ Christmas challenge has been published. www.gchq.gov.uk/news/gchq-ch...
gchq.gov.uk
GCHQ releases annual Christmas Challenge 2025 with puzzles designed by schoolchildren and spies
To mark a decade of festive puzzles, our in-house puzzlers have masterminded seven fiendish brainteasers and teamed up with schoolchildren on three festive designs
062
Reposted by Kathy H
Rachel Lambert, prof at UCSB, teacher! @mathematize4all.bsky.social · 08/12/2025
A great roundup by Edutopia on 10 best ed research pieces in the last year. Why helping can be counterproductive, another approach to math word problems, a study of practice-based pre-service education with implications for PD in mathematics, and MORE #MTBOS #LearningSciences4ever
edutopia.org
The 10 Most Significant Education Studies of 2025
We’re back with our roundup of the most insightful studies of the year, from the power of brain breaks to groundbreaking research on AI, cell phones, and handwriting in the classroom.
0137
Reposted by Kathy H
Avery @averypickford.bsky.social · 04/12/2025
This whole thread might read like a critique, but really I just want to pay homage to @eluberoff.bsky.social and team for building by far the best EdTech product I've encountered in my 25 years teaching. Y'all changed a lot of teaching and learning for the better.
1131
Kathy H @kathyhen.bsky.social · 20/11/2025
#mtbos #ITeachMath Random Q: Quadratic prompt with triangles inside the curve. The question asks something to the effect of "with the coordinate-axes of 3". What does "coordinate axes of 3" refer to? Google doesn't have answer. Thanks!
300
Reposted by Kathy H
TODOS: Mathematics for ALL @todos-math.bsky.social · 15/11/2025
Join the TODOS Virtual Book Study for Antiracist Mathematics Education: Stories of Acknowledgment, Action, and Accountability! 📘🌱 Nov 19 • 4:30 PM PT • Section 1: Students www.todos-math.org/todos-book-club/ #TODOSmath #MathEquity #iTeachMath #EduSky
Flyer for a TODOS “Antiracist Mathematics Education” virtual book study. Green background with colorful student artwork in diagonal panels. Text includes event title, “Stories of Acknowledgment, Action, and Accountability,” and date: Nov 19, 4:30 PM PT, Section 1: Students.
074
Reposted by Kathy H
Duane Habecker @duanehabecker.com · 01/11/2025
Join the Math on the Rocks PODCAST crew as we record three live podcast episodes in Palm Springs, November 7 & 8, 2025. Register for the CMC-South math conference here: www.cmcmath.org/cmc-... @cmcmath.bsky.social @CAMathCouncil #iTeachMath
032
Reposted by Kathy H
Duane Habecker @duanehabecker.com · 01/11/2025
Our fabulous California Math Council affiliates are banding together to provide insight on high-quality instructional materials. Join them on 11/19/2025! Register here: tinyurl.com/HQIMCMCA... @cmcmath.bsky.social @CAMathCouncil #iTeachMath
002
Reposted by Kathy H
Melynee Naegele @mnmmath.bsky.social · 02/11/2025
Join us for #ElemMathChat on Thu, Nov 6 at 8pm CST / 9pm EST / 6pm PST! Topic: Facilitating Meaningful Mathematical Discourse Leader: Latrenda Knighten @latrendak.bsky.social Share ways to get students talking and thinking deeply about math!
031
Kathy H @kathyhen.bsky.social · 02/11/2025
Hey #mtbos #ITeachMath friends - @jedediyah.com and I will be hosting a free, @amplifyeducation.bsky.social webinar this Thursday evening on the basics of building an Amplify Classroom activity. We would love for you to join us! Here's the sign up link: amplify.com/event/intro-...
amplify.com
Intro to Activity Building
Join us for an upcoming K-12 webinar, online event, or podcast. You can browse all of our events by month. Sign up and click Register Now.
196
Reposted by Kathy H
Nick Corley @mrcorleymath.bsky.social · 28/10/2025
If you are using @desmos.com just to "graph", then you are not using it to its full potential. #iteachmath
191
Reposted by Kathy H
∞ Juan Carlos @jcponcemath.bsky.social · 28/10/2025
😃 Now you can define colors in the @desmos 3D calculator that depend directly on coordinates. www.desmos.com/3d/s40shr66rn
2337
Reposted by Kathy H
Rachel Lambert, prof at UCSB, teacher! @mathematize4all.bsky.social · 23/10/2025
I am recruiting for doctoral students at the University of California, Santa Barbara. Particularly those focused on the intersections between math ed and disability studies here, but also either field. Classes for the first three years are in person. My email: rlambert@ucsb.edu #ITeachMath #EduSky
12016
Kathy H @kathyhen.bsky.social · 12/10/2025
What a hellscape I live in 🤣🤣 #SanFrancisco #MyCityByTheBay
View of the Bay Bridge and a SFFD fire boatView of SF Ferry Building with Arrow sculpture in the foreground. View of SF from Alcatraz View of SF with a 777 plane flying in front of Sutro tower is in the background.
020
Reposted by Kathy H
NCSM: Leadership in Mathematics Education @mathedleaders.bsky.social · 04/10/2025
We’re rolling out the red carpet at #NCSM2025! 🍰 Hors d'oeuvres 🥂 Beverages 🤓 Math leaders geeked about HQIM 🎬️ And "Counted Out" watch party & live Q&A with film director, Vicki Abeles! Add this event to your registration for just $5 mathedleadership.org/57th-annual-conference-registration
043
Reposted by Kathy H
benjamin dickman @benjamindickman.bsky.social · 21/09/2025
Finally! A citable writeup for @jennalaib.bsky.social! And, as linked in the article, there is the trove of examples freely available at: slowrevealgraphs.com #iTeachMath ♾️
slowrevealgraphs.com
Slow Reveal Graphs
An Instructional Routine to Promote Sensemaking about Data
01910
Kathy H @kathyhen.bsky.social · 16/09/2025
Tried this problem with my math club today - they’re a group of 6th and 7th graders. They solved it in ~25 minutes. Take that, AI! lol. #ITeachMath #MTBoS
2161
Reposted by Kathy H
Andrew Stadel @astadel.bsky.social · 16/09/2025
NEW Installment to the Grade 6 Estimation 180 Toolkit this Friday. Packed with RATIOS goodies. See what's inside here: estimation180.com/toolkit-grad... #mtbos #iteachmath #estimation180
022
Reposted by Kathy H
Adam Cohen (My Personal Views Only) @axidentaliberal.bsky.social · 10/09/2025
As we learn about the shooting of Charlie Kirk, we can issue platitudes saying things like violence is never the answer But-to me-it’s this simple If you abhor the unlawful political violence committed on January 6, you should condemn the shooting of Kirk as well-regardless of his policy positions
77552130
Reposted by Kathy H
Melynee Naegele @mnmmath.bsky.social · 01/09/2025
📢 #ElemMathChat is back! First chat of the year: Please join us in discussing, 'Students with disabilities & meaningful math as a human right.' With @joannahayman.bsky.social ⏰ Sept 4 | 9–10pm ET / 8–9pm CT #MTBoS #ITeachMath #ElemMathChat #EquityInMath
021