Cal Armstrong
@calarmstrong.bsky.social
I learn; I help others learn
Mathematics Educator/Microsoft Education Fellow/PCMI - Institute for Advanced Study/Aux Police A/Sgt
@cal_armstrong@mathstodon.xyz
@sig225 on X/Twitter
Mathematics Educator/Microsoft Education Fellow/PCMI - Institute for Advanced Study/Aux Police A/Sgt
@cal_armstrong@mathstodon.xyz
@sig225 on X/Twitter
Sorry, #AI ... the document is LONG because it's important, and the text has been chosen deliberately to convey meaning by the author. I don't need Reader's Digest abridged and condensed versions.
October 29, 2025 at 2:44 PM
Sorry, #AI ... the document is LONG because it's important, and the text has been chosen deliberately to convey meaning by the author. I don't need Reader's Digest abridged and condensed versions.
I'm excited for my #AI schedule tonight at #ExplorAItion !
There's still time to register (and *cough* there's a special OAME code for 50% off)
ecoo.org/exploraition...
#mtbos #mathed #onted
There's still time to register (and *cough* there's a special OAME code for 50% off)
ecoo.org/exploraition...
#mtbos #mathed #onted
October 22, 2025 at 1:05 PM
I'm excited for my #AI schedule tonight at #ExplorAItion !
There's still time to register (and *cough* there's a special OAME code for 50% off)
ecoo.org/exploraition...
#mtbos #mathed #onted
There's still time to register (and *cough* there's a special OAME code for 50% off)
ecoo.org/exploraition...
#mtbos #mathed #onted
So I had two tasks at #NCTMATL25 (besides presenting with Cynthia Shi) ... see @pegcagle.bsky.social and Gail Burrill
... mission accomplished! And a bonus visit with
Vicki Lyons
Forgot to take a pic with Peg & Vicki, but I got Gail!
#mtbos #mathed
... mission accomplished! And a bonus visit with
Vicki Lyons
Forgot to take a pic with Peg & Vicki, but I got Gail!
#mtbos #mathed
October 18, 2025 at 3:09 PM
So I had two tasks at #NCTMATL25 (besides presenting with Cynthia Shi) ... see @pegcagle.bsky.social and Gail Burrill
... mission accomplished! And a bonus visit with
Vicki Lyons
Forgot to take a pic with Peg & Vicki, but I got Gail!
#mtbos #mathed
... mission accomplished! And a bonus visit with
Vicki Lyons
Forgot to take a pic with Peg & Vicki, but I got Gail!
#mtbos #mathed
October 18, 2025 at 2:28 PM
Each representation is correct, but which are helpful, at what stage, and for which purpose?
#nctmatl25 #mtbos #mathed
#nctmatl25 #mtbos #mathed
October 18, 2025 at 2:21 PM
Each representation is correct, but which are helpful, at what stage, and for which purpose?
#nctmatl25 #mtbos #mathed
#nctmatl25 #mtbos #mathed
So the previous session mentioned procedural fluency versus conceptual understanding.
The next session drove the point home.
#nctmatl25 #mtbos #mathed
The next session drove the point home.
#nctmatl25 #mtbos #mathed
October 18, 2025 at 2:08 PM
So the previous session mentioned procedural fluency versus conceptual understanding.
The next session drove the point home.
#nctmatl25 #mtbos #mathed
The next session drove the point home.
#nctmatl25 #mtbos #mathed
The only reason I would want to teach small children would be for the contexts - & sketches - they create!
#nctmatl25 #mtbos #mathed
#nctmatl25 #mtbos #mathed
October 18, 2025 at 2:03 PM
The only reason I would want to teach small children would be for the contexts - & sketches - they create!
#nctmatl25 #mtbos #mathed
#nctmatl25 #mtbos #mathed
"Because of the abstract nature of mathematics, people have access to mathematical ideas only through the representations of those ideas" from Adding It Up.
#nctmatl25 #mtbos #mathed
#nctmatl25 #mtbos #mathed
October 18, 2025 at 1:33 PM
"Because of the abstract nature of mathematics, people have access to mathematical ideas only through the representations of those ideas" from Adding It Up.
#nctmatl25 #mtbos #mathed
#nctmatl25 #mtbos #mathed
What maths are involved in #AI?
Exactly what @NCTM proposed in the 1990s and forward.
At #nctmatl25 #mtbos #mathed
Exactly what @NCTM proposed in the 1990s and forward.
At #nctmatl25 #mtbos #mathed
October 16, 2025 at 5:03 PM
What maths are involved in #AI?
Exactly what @NCTM proposed in the 1990s and forward.
At #nctmatl25 #mtbos #mathed
Exactly what @NCTM proposed in the 1990s and forward.
At #nctmatl25 #mtbos #mathed
October 16, 2025 at 4:47 PM
Variety of approaches by the teachers, including one moving it into digital
At #nctmatl25 #mtbos #mathed
At #nctmatl25 #mtbos #mathed
October 16, 2025 at 3:57 PM
Variety of approaches by the teachers, including one moving it into digital
At #nctmatl25 #mtbos #mathed
At #nctmatl25 #mtbos #mathed
Angela leads the room through how to do the design, guiding thoughts on language, mathematics and art
At #nctmatl25 #mtbos #mathed
At #nctmatl25 #mtbos #mathed
October 16, 2025 at 3:43 PM
Angela leads the room through how to do the design, guiding thoughts on language, mathematics and art
At #nctmatl25 #mtbos #mathed
At #nctmatl25 #mtbos #mathed
Class particiption time at Angela's session... A long queue of math teachers about to be engaged in art
At #nctmatl25 #mtbos #mathed
At #nctmatl25 #mtbos #mathed
October 16, 2025 at 3:28 PM
Class particiption time at Angela's session... A long queue of math teachers about to be engaged in art
At #nctmatl25 #mtbos #mathed
At #nctmatl25 #mtbos #mathed
October 16, 2025 at 2:58 PM
October 16, 2025 at 12:36 PM
I'm in Atlanta for the @NCTM Conference!
Friday I get to present w/Cynthia Shi on our work developing, designing, using, criticizing & theorizing with & about #AI in math class, especially for preparation, content development, assessment & knowledge.
#mtbos #nctmatl25 #OntEd #mathed
Friday I get to present w/Cynthia Shi on our work developing, designing, using, criticizing & theorizing with & about #AI in math class, especially for preparation, content development, assessment & knowledge.
#mtbos #nctmatl25 #OntEd #mathed
October 15, 2025 at 1:46 AM
I'm in Atlanta for the @NCTM Conference!
Friday I get to present w/Cynthia Shi on our work developing, designing, using, criticizing & theorizing with & about #AI in math class, especially for preparation, content development, assessment & knowledge.
#mtbos #nctmatl25 #OntEd #mathed
Friday I get to present w/Cynthia Shi on our work developing, designing, using, criticizing & theorizing with & about #AI in math class, especially for preparation, content development, assessment & knowledge.
#mtbos #nctmatl25 #OntEd #mathed
On Wed Oct 8th at 8pm, @davidpetro314.bsky.social talks with Chad Harris on Neurodivergence: "Wait, what was I learning? Shedding light on Neurodivergent Experiences in the Classroom"
Register for the @OAMEtalks at mcis.oame.on.ca
More info at docs.google.com/document/d/1...
#mtbos #onted
Register for the @OAMEtalks at mcis.oame.on.ca
More info at docs.google.com/document/d/1...
#mtbos #onted
October 2, 2025 at 12:49 PM
On Wed Oct 8th at 8pm, @davidpetro314.bsky.social talks with Chad Harris on Neurodivergence: "Wait, what was I learning? Shedding light on Neurodivergent Experiences in the Classroom"
Register for the @OAMEtalks at mcis.oame.on.ca
More info at docs.google.com/document/d/1...
#mtbos #onted
Register for the @OAMEtalks at mcis.oame.on.ca
More info at docs.google.com/document/d/1...
#mtbos #onted
#chatOAME 💗 @Desmos
Whenever a reply to a teacher involves a graphable equation or table of data, the teacher can click on a Desmos chip and it opens to a Desmos graph automagically!
www.linkedin.com/pulse/chatoa...
Thanks, Desmos, for your awesome API & generosity to the #onted #mtbos community
Whenever a reply to a teacher involves a graphable equation or table of data, the teacher can click on a Desmos chip and it opens to a Desmos graph automagically!
www.linkedin.com/pulse/chatoa...
Thanks, Desmos, for your awesome API & generosity to the #onted #mtbos community
October 2, 2025 at 1:12 AM
#chatOAME 💗 @Desmos
Whenever a reply to a teacher involves a graphable equation or table of data, the teacher can click on a Desmos chip and it opens to a Desmos graph automagically!
www.linkedin.com/pulse/chatoa...
Thanks, Desmos, for your awesome API & generosity to the #onted #mtbos community
Whenever a reply to a teacher involves a graphable equation or table of data, the teacher can click on a Desmos chip and it opens to a Desmos graph automagically!
www.linkedin.com/pulse/chatoa...
Thanks, Desmos, for your awesome API & generosity to the #onted #mtbos community
Math Night with NWOAME (@OAMElearns Chapter)
Tuesday, October 7, 2025
Live Zoom Presentation 7:30–9:00P.M. EST
Please pre-register for the talk, Zoom link and/or recording: info at link docs.google.com/document/d/1...
#mtbos #onted #climatechange #mathed
Tuesday, October 7, 2025
Live Zoom Presentation 7:30–9:00P.M. EST
Please pre-register for the talk, Zoom link and/or recording: info at link docs.google.com/document/d/1...
#mtbos #onted #climatechange #mathed
October 1, 2025 at 1:57 AM
Math Night with NWOAME (@OAMElearns Chapter)
Tuesday, October 7, 2025
Live Zoom Presentation 7:30–9:00P.M. EST
Please pre-register for the talk, Zoom link and/or recording: info at link docs.google.com/document/d/1...
#mtbos #onted #climatechange #mathed
Tuesday, October 7, 2025
Live Zoom Presentation 7:30–9:00P.M. EST
Please pre-register for the talk, Zoom link and/or recording: info at link docs.google.com/document/d/1...
#mtbos #onted #climatechange #mathed
Visit ecoo.org/exploraition... for more information, dates, registration or to submit a proposal (a rolling proposal submission as we're running all year)!
Check THE COUNTER sites.google.com/oame.on.ca/n... for your OAME code for 50% registration for the entire 6-night series!
Check THE COUNTER sites.google.com/oame.on.ca/n... for your OAME code for 50% registration for the entire 6-night series!
September 11, 2025 at 4:55 PM
Visit ecoo.org/exploraition... for more information, dates, registration or to submit a proposal (a rolling proposal submission as we're running all year)!
Check THE COUNTER sites.google.com/oame.on.ca/n... for your OAME code for 50% registration for the entire 6-night series!
Check THE COUNTER sites.google.com/oame.on.ca/n... for your OAME code for 50% registration for the entire 6-night series!