Raymond Johnson

NCTM President Latrenda Knighten

NCTM Board of Directors

NCTM/MET Lifetime Achievement Awardee Matt Larson

Opening session speaker Lateefah Id-Deen

Opening @nctm.org session at #NCTMATL25. @latrendak.bsky.social kicked off with things to think about and people to thank before handing things over to Matt Larson, who gave an inspiring acceptance speech after receiving the Lifetime Achievement Award, and to Lateefah Id-Deen, our opening speaker.

📣 Call for Reviewers! The 58th Annual #NCSM Conference team is seeking volunteers to review speaker proposals.

🗓 Review window: Dec 12–Jan 9
🕒 Each proposal takes ~10–15 mins (10–20 total)
✅ Apply by Nov 21

🔗 forms.gle/JdSqGFyZVsHs...

#NCSM2026 #Denver #NCSMElevate

Ryan gives the best 2 sentence summary of the NCTM's 8 effective teaching practices I've ever seen. drive.google.com/file/d/1SRkb...

Why does Colorado have the shortest school year of any state? While it seems like Colorado students are getting short-changed, it’s important to look at the instructional hours mandated. Here’s how Colorado stacks up.

Colorado only requires 160 days for districts with 5-day school weeks, but for districts with 4-day weeks (about 133 of our 178 districts), then can have even fewer so long as the instructional hours add up. The last district I taught for only had 144 instructional days. www.cpr.org/2025/03/31/w...

I saw presentations at AERA that did math textbook analysis and it made me wish that we had information that went far beyond what we get from EdReports. Pacing data would be useful, as would percentages of problems rated by cognitive demand and the use of verbal, visual, and contextual features.

I've seen this before and it's still so weird to me that it got published in a Journal of Medicine.

ERICA to the Rescue! ERIC, the research repository of the Department of Education, was defunded this week. The ERIC catalog lists over 2 million education-related publications. More than 500,000 of these publications are ...

Some good news for this Friday. This astonishing group of people have spun up ERICA, the ERIC archive. www.datarescueproject.org/erica-to-the...

#GLAMS #Skybrarians #AcademicSky

I browsed the #AERA2025 exhibit hall and saw a lot of books that I want. My question becomes: How many more books can I pile on to my shelves before I trigger a structural collapse of the floor? There's a number. I don't know what it is, and I hope it's pretty big, but there's a number.

Anyway, crazy times. The mission of helping people learn math more deeply and powerfully seems, if anything, more important than ever.

Maybe when you're done with the LOC, you can head to Rutgers next to dig into their archives. 😉 archives.libraries.rutgers.edu/repositories...

Just had the prep call for the opening panel (on using math to improve the world) at @JustEquations free, virtual conference, The Mathematics of Opportunity. It's going to be great! Join the fun - ensuring that math education expands opportunity for students.
Register now: bit.ly/tmo-2025-reg...

This thread references an oldie but a goodie: bsky.app/profile/raym...

Letter stating that biographies are being reviewed based on the executive order to eliminate reference to DEI

Teachers who received the highest award in math and science education are being censored and erased. #edusky

I think this article might be up your alley. Check out the six RME principles of teaching mathematics by van den Heuvel-Panhuizen and Wijers: drive.google.com/file/d/1h19l...

I occasionally think I want to write a book focused on these things, but for now, Marja's article will have to do.

Also noteworthy: I had four consecutive quarters making satisfactory progress for keeping objects out of my mouth.

Kindergartners have lots of stuff to learn.

A report card with the handwritten comment, "Raymond has good ideas and solutions to problems."

We were talking about our old report cards this morning in the office so I decided to dig mine out. I had one comment from my Kindergarten teacher, Mrs. Reingardt, and honestly it might be all I've ever wanted people to say about me.

"Raymond has good ideas and solutions to problems."

This strikes me as well-said: "Situations that call for immediate response are very frustrating to children who have no thought processes available that permit them to answer in the time allotted."

I like that this isn't about anxiety, which sounds medical. It's about balancing skill vs. time.

Full reference:

Rathmell, E. C. (1978). Using thinking strategies to teach the basic facts. In M. N. Suydam & R. E. Reys (Eds.), Developing computational skills: 1978 yearbook (pp. 13–38). National Council of Teachers of Mathematics.

Reading Rathmell (1978) with fresh eyes while participating in a book study of Bay-Williams and SanGiovanni's Figuring Out Fluency. I like this advice regarding drill: It's needed to develop immediate recall, but make sure you're drilling _efficient_ strategies, not inefficient ones. #MTBoS #mathed

If you'd rather follow a feed that tracks the use of a bunch of #mathed -related hashtags, let me suggest this one by @afreeparticle.com:

bsky.app/profile/did:...

On Twitter, I had built up a list of almost 5,000 people who posted pretty reliably about #matheducation. Here's my attempt to start the same kind of list here. I believe you can follow it and pin it to the top of your timeline:

bsky.app/profile/did:...

#MTBoS #MathEd #iteachmath

On the dual nature of mathematical conceptions: Reflections on processes and objects as different sides of the same coin - Educational Studies in Mathematics This paper presents a theoretical framework for investigating the role of algorithms in mathematical thinking. In the study, a combined ontological-psychological outlook is applied. An analysis of dif...

This sounds a lot like Sfard (1991) -- if you haven't read it, I think you'll like it.

Sfard, A. (1991). On the dual nature of mathematical conceptions: Reflections on processes and objects as different sides of the same coin. Educational Studies in Mathematics, 22, 1–36. doi.org/10.1007/BF00...

Allow me to paraphrase the quoted statement for the irony:

"I am convinced of what I have learned--not because someone explicitly told me in an article--but because I've been given opportunities to experiment in my own practice, make observations, and synthesize conclusions that make sense to me."

"Knowing from Memory" =/= Memorization.
This is definitely a call-back to Aldous Huxley's "Brave New World' and the introduction of hypnopaedia : ecampusontario.pressbooks.pub/englishliter...
"The-Nile-is-the-longest-river-in-Africa"
#NCTMCHi24

#mtbos

So far, I've seen #NCTMCHI24.

Eugenia Cheng

NCTM President Kevin Dykema

Jim Hiebert with Mike Shaughnessy and Kevin Dykema

Incoming NCTM Latrenda Knighten, Ken Krehbiel, and incoming NCTM board members

Opening keynote at #NCTMCHI24 with Dr. Eugenia Cheng and honoring NCTM Lifetime Achievement Award winner, Dr. Jim Hebert.

Lani Horn presenting to the opening session at the 2024 NCTM Annual Meeting.

"We know a lot. I don't know if we know the right things yet, but we know a lot."

- @ilanahorn.bsky.social, commenting on the state of #mathed at #NCTMCHI24

I wish I could be there! I'm sure I've heard parts of it already, but most of those books are new to me and I'm quite interested in what you found in them.

Try again, ChattyG.

The Mathematics of Growth Mindset — MATH VALUES

Two things I believed:
1. Students start out in a variety of places, some far ahead of others.
2. Students learn at a variety of rates, some whipping through content, others .. not so much.
Data sugges one of these is wrong.

Read more...

www.mathvalues.org/masterblog/t...