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John Hartmann

@jhartedu.bsky.social
261 followers 267 following 202 posts

20+ year teacher. Elementary. Former EdTech enthusiast. Now Math Interventionist. Interested in Instructional Coaching. From STL MO. Go Chiefs!

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John Hartmann @jhartedu.bsky.social · 07/05/2026
Received my summer PD read!!
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John Hartmann @jhartedu.bsky.social · 03/02/2026
I gifted a meal by taking a photo at Scooter's Coffee with the free @GiftAMeal app. #ScootersCoffee #GiftAMeal api.giftameal.app/local-busine...
api.giftameal.app
Scooter's Coffee helped me GiftAMeal to a family in need!
Join us in the fight against hunger.
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John Hartmann @jhartedu.bsky.social · 20/01/2026
I gifted a meal by taking a photo at Scooter's Coffee with the free @GiftAMeal app. #ScootersCoffee #GiftAMeal api.giftameal.app/local-busine...
api.giftameal.app
Scooter's Coffee helped me GiftAMeal to a family in need!
Join us in the fight against hunger.
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The Cuisenaire Company @cuisenaireco.bsky.social · 16/01/2026
We have now deactivated our X account. Please share our bluesky account with people that have an interest in mathematics education, and maths manipulatives @cuisenaireco.bsky.social #mathseducation #manipulatives #playislearning #pedagogy #cuisenairerods
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John Hartmann @jhartedu.bsky.social · 21/11/2025
A7. Notice names with numbers attached. Names seem to be in alphabetical order. Wonder if there is a pattern or reason for numbers connected to each name. #ElemMathChat
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John Hartmann @jhartedu.bsky.social · 21/11/2025
A5: We did frayers a lot. Most of the time on a shared slide so kids could "cheat" and see each other's work. Review I used Gimkit to make it fun. Kids would also create the Review questions so they had to write/punctuate/spell correctly. #ElemMathChat
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John Hartmann @jhartedu.bsky.social · 21/11/2025
A4: I used to use pictures to generate 8 parts of speech and writing. Estimysteries pictures, collections/jars could easily be re-used for writing/storytelling #ElemMathChat
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John Hartmann @jhartedu.bsky.social · 21/11/2025
A2: I notice some of these jumpvright put as familiar. 26 letters of alpha, 7 days of week. But others are less known. #ElemMathChat
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John Hartmann @jhartedu.bsky.social · 21/11/2025
A1. Scrabble was always a big ine. I remember the decipher code puzzles too. #ElemMathChat
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John Hartmann @jhartedu.bsky.social · 21/11/2025
Hi all. Long time no chat. But came across this in between kid baths. Stopping in to say howdy. Interventionistfrom STL MO #ElemMathChat
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Grassroots Workshops @grassrootsworkshops.com · 14/11/2025
Looking for a routine that engages your students while building their number sense? Come explore Clothesline Math and how to use it in your classroom. Learn more about Kristen Acosta's @kristenacosta.bsky.social How To Use Clothesline Math online workshop at grassrootsworkshops.com/wor...
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John Hartmann @jhartedu.bsky.social · 05/09/2025
#RSDMathRocks #RSDMathIntervention
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John Hartmann @jhartedu.bsky.social · 03/09/2025
Thanks to our local Scooters for supporting teachers. Much appreciated.
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Howie Hua @howiehua.bsky.social · 01/09/2025
It's Mental Math Monday! How would you mentally calculate 15×24?
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John Hartmann @jhartedu.bsky.social · 01/09/2025
#RSDMathRocks #RSDMathIntervention
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Duane Habecker @duanehabecker.com · 28/08/2025
Today I helped some teachers come to grips with the fact that their 4th grade math textbook has many lessons that are NOT 4th grade standards. Not only does the book NOT advocate good teaching...it is also teaching the wrong stuff. #CMCforQualityMath #UseHQIM
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Melynee Naegele @mnmmath.bsky.social · 26/08/2025
📢 #ElemMathChat is back! Sept–May lineup features Joanna Hayman, Dr. Nicki Newton, Marria Carrington, Naomi Dupre-Edelman, Dr. India White, Dee Crescitelli, Jaliyla Fraser & more. Check out the lineup: bit.ly/466q4lf We still have open dates Sign up to lead here: docs.google.com/spreadsheets...
bit.ly
Chat PR 25/26
September 4, 2025: Joanna Hayman 📢 #ElemMathChat is back! First chat of the year: Please join us in discussing, Students with disabilities & meaningful math as a human right. With @joannahayman.bsk...
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drnickinewton.bsky.social @drnickinewton.bsky.social · 24/08/2025
👀 Dab, grab, and shout hooray— Number sense is built this way! 🎉 Bingo dots make math a game, Number play will never be the same! #MathFun #EarlyMath
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Grassroots Workshops @grassrootsworkshops.com · 15/08/2025
If you're a math teacher looking to incorporate an exciting math routine or problem to use with your students, check out our mini workshops from these math educators. Learn more at grassrootsworkshops.com/wor...
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EducationPlus @educationplusstl.bsky.social · 08/08/2025
Welcome Neighbor STL seeks volunteer tutors for weekly 1-hr in-home English lessons with refugee women in St. Louis. No experience needed—training & materials provided. Sign up: bit.ly/4g6pCmC #ELL #STLedu
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John Hartmann @jhartedu.bsky.social · 23/07/2025
#RSDMathRocks #RSDMathIntervention
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Howie Hua @howiehua.bsky.social · 05/07/2025
A math "trick" that can make subtraction easier:
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Sue O'Connell @sueoconnellmath.bsky.social · 13/06/2025
I hope you will join us throughout the summer for this slow chat on strengthening k-5 students’ number skills and number sense. Begins June 16 in the Math in Practice/Sue O’Connell Facebook group. @nctm.org @mathedleaders.bsky.social @heinemannpub.bsky.social #elemmathchat
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Howie Hua @howiehua.bsky.social · 04/06/2025
As a math teacher, it feels like half of my job is building mathematical confidence. Here are some ways I do this:
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John Hartmann @jhartedu.bsky.social · 03/06/2025
Had fun at our district math PD. What's wrong with me... it's summer. 🤣
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compasspd.bsky.social @compasspd.bsky.social · 30/05/2025
In this episode of the Compass PD Podcast, Dr. Stephanie Brenner and Dr. Stephanie Evans take a deep dive into the complexities of dyscalculia—a learning difference that affects students' ability to understand and work with numbers. youtu.be/E6uOZLF-9RA
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Jake Miller @jakemilleredu.bsky.social · 22/05/2025
🤩 New #EduDuctTape Episode! 🥳 Today's episode features a conversation I had with Dr. @marcisseks.bsky.social and Dr. Nick Simone of the #StateOfEd Podcast. We talked about AI, motivation, goal orientations, personalized learning, instructional coaching, + more! #edusky episodes.fm/1447821443
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John Hartmann @jhartedu.bsky.social · 19/05/2025
Thoughts on "fraction greater than one" vs "improper fraction" (or both) language for elementary math? #ElemMathChat #MathSky #ITeachMath
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a man with a beard wearing a red shirt says simple math
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Melynee Naegele @mnmmath.bsky.social · 08/05/2025
Join us for the last #ElemMathChat of the school year tonight when Pam Brett @pambrett.bsky.social leads us in discussing, 'Emotions as Catalysts for Beliefs in Math Class' See you at 8pm CST #ElemMathChat
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John Golden @johngolden.bsky.social · 08/05/2025
Commercial board game #mathgame s. www.edutopia.org/article/boar...
edutopia.org
Using Board Games to Teach Math to Young Children
Playing board and card games can improve number sense among children as young as 3—and it’s fun!
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Edutopia @edutopia.org · 08/05/2025
Playing board and card games can improve number sense among children as young as 3—and it’s fun! 🃏✨ #MathSky #ElementaryTeacher #kindergarten #preschool
edut.to
Using Board Games to Teach Math to Young Children
Playing board and card games can improve number sense among children as young as 3—and it’s fun!
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Ron Martiello @ronmartiello.bsky.social · 06/05/2025
🚨 We’re published in Ed Leadership! Dr. Jenna Mancini Rufo & I challenge the myth that you’re either a “math person” or not. Let’s create math classrooms where everyone belongs. 📖 Read: www.ascd.org/blogs/bustin... #UDL #elemmathchat #EveryoneCanDoMath
ascd.org
Busting Math Myths That Keep Students and Teachers Stuck
A new school year offers a fresh opportunity to create a classroom environment where every student can develop a positive math identity.
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Melynee Naegele @mnmmath.bsky.social · 05/05/2025
Join us for the last #ElemMathChat of the school year when Pam Brett @pambrett.bsky.social leads us in discussing, 'Emotions as Catalysts for Beliefs in Math Class' See you at 8pm CST on 5/8/25 #ElemMathChat
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John Hartmann @jhartedu.bsky.social · 01/05/2025
#RSDMathIntervention #RSDMathRocks
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Karly Moura @karlymoura.com · 25/04/2025
It's never to early to celebrate #Maythe4th & #StarWarsDay! 🪐Dive into the Star Wars galaxy with this interactive Explore Board! Create your own character trading card, learn about lightsabers, translate Yoda-speak, & more! f.mtr.cool/cmmhwwphoz
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John Hartmann @jhartedu.bsky.social · 25/04/2025
LOVE Splats. Especially fraction splats and discussing when fractions greater than one can be more useful than mixed #s. In this case (19-7)/4 #ElemMathChat
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John Hartmann @jhartedu.bsky.social · 25/04/2025
A9: 1 - Always 2- Sometimes but not so in the special case of a square 3 - Sometimes 1/2 of 3 is smaller than a 1/3 of 6. But 1/2 is the largest unit fraction when dealing with the same whole and would never be smaller than a third in that case. #ElemMathChat
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John Hartmann @jhartedu.bsky.social · 25/04/2025
A10: Get rid of decimals. 1.5x18 becomes 3x9 (known fact) Id also consider 5x86 since doubling to 10 makes it simpler and both digits in 86 are even. 10x43
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John Hartmann @jhartedu.bsky.social · 25/04/2025
A0: John from STL MO. Math Interventionist. Today is my wife's birthday so that is joy. But also probably only able to check in tonight. #ElemMathChat
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compasspd.bsky.social @compasspd.bsky.social · 24/04/2025
Exciting news! The Compass PD team will present at the NCTM/NCTE Elementary Joint Conference in Chicago this summer! 🎉 Join our sessions, stop by our table, and see The Comprehensive Standards Guides in person! www.nctm.org/ncte-nctm2025/ #NCTM #NCTE
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Duane Habecker @duanehabecker.com · 23/04/2025
This article describes a problem I see daily in the math classes I visit. More teachers than we care to admit have only a shaky understanding of the math they teach. Some have a palpable FEAR of math. They deserve better support. #iTeachMath www.edsurge.com/news...
edsurge.com
In Elementary School, Many Teachers Have a Shaky Grasp of Math. Can Preparation Programs Change That? | EdSurge News
Elementary school teachers aren’t set up for math. But can changing teacher prep programs help?
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Howie Hua @howiehua.bsky.social · 23/04/2025
I turned my most boring math lesson into one of my most engaging ones. Here's how:
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drnickinewton.bsky.social @drnickinewton.bsky.social · 22/04/2025
We have to do math pd. It is essential. All elementary and middle school principals should read this: www.edsurge.com/news/2025-04...
edsurge.com
In Elementary School, Many Teachers Have a Shaky Grasp of Math. Can Preparation Programs Change That? - EdSurge News
Elementary school teachers aren’t set up for math. But can changing teacher prep programs help?
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Ron Martiello @ronmartiello.bsky.social · 22/04/2025
#elemmathchat #msmathchat #iteachmath
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compasspd.bsky.social @compasspd.bsky.social · 21/04/2025
Bring clarity and consistency to your School District. Compass PD’s Comprehensive Standards Guides (CSGs) are built directly from your state standards, the tools to deliver aligned instruction, support PLCs and MTSS, and help every student thrive. Confidence. Coherence. Success. #StandardsBased
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John Hartmann @jhartedu.bsky.social · 20/04/2025
Happy Easter
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he is risen good morning have a blessed resurrection day poster
ALT: he is risen good morning have a blessed resurrection day poster
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John Hartmann @jhartedu.bsky.social · 19/04/2025
Maybe the gators were hungry and the larger rabbit was inside. < > = #ElemMathChat
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John Hartmann @jhartedu.bsky.social · 18/04/2025
#RSDMathIntervention
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Ann Elise Record @anneliserecord.bsky.social · 18/04/2025
Please join me next week during #ElemMathChat as we explore energizers and daily routines that promote reasoning! #ITeachMath
Image shows a picture of Ann Elise Record and the details of the chat next Thursday, April 24 at 9pm EST. Focusing on Energizers and Daily Routines that promote reasoning.
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Melynee Naegele @mnmmath.bsky.social · 18/04/2025
Please join a great chat on 4/24 at 8pm CST when Ann Elise Record @anneliserecord.bsky.social leads #ElemMathChat See you there!
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