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I am starting a new series on the blog for inquiries in math. I posted the first one today:

https://www.fractalkitty.com/inquiries-week-1-circle-shading/

#mtbos #iteachmath #circles #graphtheory #math

📣 Exciting opportunity for rural K-1 schools! 👋🔬 Partner with PhET to advance early math education with our interactive simulations. Help us refine and pilot engaging math resources. Enjoy teacher PD plus other benefits. Don't miss out! Details here: https://bit.ly/43p9Ot0 #iTeachMath

A young boy using a PhET sim on a tablet. Promotional details about early math opportunity.

Here is my latest posting at TheOtherMath.
#iTeachMath

May 20, 2025 #TapeDiagramTuesday
https://theothermath.com/index.php/2025/05/20/may-20-2025-tapediagramtuesday/

It's time for your #TapeDiagramTuesday extra challenge!

Model your solution strategy with a tape diagram. Then share it with the community!
#iTeachMath

"Amy has two bottles of juice.
• She drinks 1/3 of the juice from the first bottle.
• She drinks 1/4 of the juice from the second bottle.
• There is now the same amount of juice in each bottle.
• At the start, there was 60 ml more juice in the first bottle than the second bottle.

How much juice was in the first bottle at the start?"

It's time for #TapeDiagramTuesday!
Here's what to do:
1. Pick a problem.
2. Solve it using a tape diagram to model your thinking.
- - - - OR - - - -
Give the problem to your students to model.
3. Share your model with #TapeDiagramTuesday
#iTeachMath

Anna sold a total of 12 tickets. She sold 5 last week and the rest this week. How many more tickets did she sell this week?

Gabriel poured 4 ounces of water into a container. The container was then 1/3 full. What was the capacity of the container?

The ratio of Noah's erasers to Kyle's erasers was 2:1. When Kyle found 9 more erasers, the ratio became 1:2. How many erasers did Noah have?

Today's #geometry problem from May calendar is 1 of a few related problems (I like how this month has several sets that relate to/build on each other)
Tell us how you thought about it; check out whole calendar @ link above.

#MTBoS #iTeachMath #ClassroomMath #MathEd #MathsEdChat #MathsToday #ProblemSolving #RecreationalMath

Given square ABCD with midpoints M and N of their respective sides. Determine the area of triangle EFG in terms of k, the length of a side of the square.

Real-World Math That Boosts Student Achievement with Dr. Erin Krupa on the CoolCatTeacher
#MathChat #MathSky #iTeachMath
https://www.coolcatteacher.com/e901/

Join us Thursday, June 19 at 4pm Pacific Time for our next Inspiring Math Minds webinar. Tim Weekes, CMC-North President, will be our presenter.

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

#iTeachMath @cmcmath.bsky.social @CAMathCouncil

Here is my latest posting at TheOtherMath.
#iTeachMath

WEBINAR: Tim Weekes
https://theothermath.com/index.php/2025/05/18/webinar-tim-weekes/

Our next episode of Math On the Rocks is coming out on Tuesday. Here is a sneak preview.
#iTeachMath @camathcouncil @cmcmath.bsky.social

Past episodes here: https://open.spotify.com/show/7A17FvtyV8FiFJ0SWoTiQm?si=429ba2c6e3f043df

CMC believes ALL students deserve an opportunity to engage deeply with grade-level mathematics. High-quality instructional materials make this possible.

@CAMathCouncil @cmcmath.bsky.social #iTeachMath

Join us in advocating for students!

http://cmcmath.org

PhET for Schools Network provides eligible public school districts and schools access to
- PhET Studio (20 seats)
- Mobile PhET App
- #Teacher PD for the #2025-2026 school year at no cost.
See application guide: http://bit.ly/3DwuGFQ
#iTeachPhysics #iteachmath #edusky

Promotional banner with benefits and registration link

Join us every month on the 3rd Thursday from 4pm - 5pm Pacific Time to listen to the best math education leaders in California.

Check out our next six guests!

#iTeachMath @cmcmath.bsky.social @CAMathCouncil

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

CMC knows that providing high-quality instructional materials saves teachers time and supports deeper student learning.

@CAMathCouncil @cmcmath.bsky.social #iTeachMath

Join us in this advocacy for mathematics teachers!

http://cmcmath.org

🤩 what a gem 💎 from @geogebra. Probability distributions app:
https://www.geogebra.org/classic#probability
#probability #iteachmath #visualization

Join us Thursday, May 15 at 4pm Pacific Time for our next Inspiring Math Minds webinar. The remarkable Christina Lincoln-Moore will be our presenter.

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

#iTeachMath @cmcmath.bsky.social @CAMathCouncil

What is better than 1 new PhET sim? 🤔 TWO new PhET sims! 🥳
🚀 Double the learning, double the fun! We're thrilled to announce the publication of TWO new simulations:

⚛️ Quantum Measurement: https://phet.colorado.edu/en/simulations/quantum-measurement/
🔢 Number Pairs: https://phet.colorado.edu/en/simulations/number-pairs/
#iTeachPhysics #iTeachMath #eduSky