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
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!