Another #boardgame #teachmath problem: An exploding die refers to rolling a standard 6-sided die but on a 6 you keep the 6 and add another roll - and you can keep exploding 6's indefinitely. A number of games use this mechanic. Find the expected value of a 6-sided (or n-sided) exploding die.
January 9, 2025 at 10:54 PM
Another #boardgame #teachmath problem: An exploding die refers to rolling a standard 6-sided die but on a 6 you keep the 6 and add another roll - and you can keep exploding 6's indefinitely. A number of games use this mechanic. Find the expected value of a 6-sided (or n-sided) exploding die.
Week 4 ... we are moving along the trajectory #MathIsHuman #DataViz #MathCommunity #MathEd #TeachMath #MathTeachers #MathChat #MathForAll #MathEquity #SocialJusticeMath #MathIsHuman #STEMCommunity #MathInRealLife #MathStory #CommunityOfPractice #MathCulture
April 29, 2025 at 11:01 PM
Week 4 ... we are moving along the trajectory #MathIsHuman #DataViz #MathCommunity #MathEd #TeachMath #MathTeachers #MathChat #MathForAll #MathEquity #SocialJusticeMath #MathIsHuman #STEMCommunity #MathInRealLife #MathStory #CommunityOfPractice #MathCulture
A recurring weakness I see in college is an inability to work with lines with any tool other than slope-intercept form. In particular, students struggle when we work with lines as geometric objects or parameterized paths and not as graphs of functions. #teachmath
February 10, 2025 at 7:12 PM
A recurring weakness I see in college is an inability to work with lines with any tool other than slope-intercept form. In particular, students struggle when we work with lines as geometric objects or parameterized paths and not as graphs of functions. #teachmath
Emphasis on meaningfulness and sense-making as central to mathematical development. Memorization is fragile and recovery is difficult (as in forgot my password or lock cutter at my gym for forgotten combinations) but reasoning from basic meaning back to some fact is possible.
#MTBoS #TeachMath
#MTBoS #TeachMath
July 8, 2025 at 3:58 PM
Emphasis on meaningfulness and sense-making as central to mathematical development. Memorization is fragile and recovery is difficult (as in forgot my password or lock cutter at my gym for forgotten combinations) but reasoning from basic meaning back to some fact is possible.
#MTBoS #TeachMath
#MTBoS #TeachMath
My age today is NOT a prime number, BUT a lot of people think my age is a prime number? How old am I? #mtbos #teachmath #mathstoday
September 18, 2025 at 4:17 PM
My age today is NOT a prime number, BUT a lot of people think my age is a prime number? How old am I? #mtbos #teachmath #mathstoday
Me: If f(x,y)=|x|y/x continuous at (0,0)?
ChatGPT before class: No.
ChatGPT during class: Yes.
I got a different teaching moment than the one I was planning. #teachmath
ChatGPT before class: No.
ChatGPT during class: Yes.
I got a different teaching moment than the one I was planning. #teachmath
February 5, 2025 at 7:15 PM
Me: If f(x,y)=|x|y/x continuous at (0,0)?
ChatGPT before class: No.
ChatGPT during class: Yes.
I got a different teaching moment than the one I was planning. #teachmath
ChatGPT before class: No.
ChatGPT during class: Yes.
I got a different teaching moment than the one I was planning. #teachmath
Thinking about ways to communicate to my data science class how to distinguish using a tool incorrectly from using the wrong tool. Meanwhile, the twins are fighting over how best to use the Magic 8-Ball to locate the remote control. #datascience #teachmath
February 4, 2025 at 3:44 PM
Thinking about ways to communicate to my data science class how to distinguish using a tool incorrectly from using the wrong tool. Meanwhile, the twins are fighting over how best to use the Magic 8-Ball to locate the remote control. #datascience #teachmath
Boost student engagement with these effective math resources designed to spark student curiosity, build math confidence, and help learners see math as a powerful tool for solving real-world problems. Browse and shop all the books: http://spr.ly/633204m96r
#mathematicalreasoning #teachmath
#mathematicalreasoning #teachmath
July 6, 2025 at 10:00 PM
Boost student engagement with these effective math resources designed to spark student curiosity, build math confidence, and help learners see math as a powerful tool for solving real-world problems. Browse and shop all the books: http://spr.ly/633204m96r
#mathematicalreasoning #teachmath
#mathematicalreasoning #teachmath
Why does math coverage in the media lag behind literacy coverage? With math outcomes under scrutiny and policies shifting, it's time to amplify the conversation! @hollykorbey.bsky.social
🔗 Read more: kappanonline.org/korbey-why-m...
#teachmath
🔗 Read more: kappanonline.org/korbey-why-m...
#teachmath
Why math coverage ≠ literacy coverage - Kappan Online
The latest NAEP scores suggest that math instruction needs just as much coverage as reading. But covering math requires a slightly different lens.
kappanonline.org
February 20, 2025 at 1:47 PM
Why does math coverage in the media lag behind literacy coverage? With math outcomes under scrutiny and policies shifting, it's time to amplify the conversation! @hollykorbey.bsky.social
🔗 Read more: kappanonline.org/korbey-why-m...
#teachmath
🔗 Read more: kappanonline.org/korbey-why-m...
#teachmath
Reading Knotting Numbers with my class #ethnomath #MathIsHuman #DataViz #MathCommunity #MathEd #TeachMath #MathTeachers #MathChat #MathForAll #MathEquity #SocialJusticeMath #MathIsHuman #STEMCommunity #MathInRealLife #MathStory #CommunityOfPractice #MathCulture
April 29, 2025 at 11:04 PM
Reading Knotting Numbers with my class #ethnomath #MathIsHuman #DataViz #MathCommunity #MathEd #TeachMath #MathTeachers #MathChat #MathForAll #MathEquity #SocialJusticeMath #MathIsHuman #STEMCommunity #MathInRealLife #MathStory #CommunityOfPractice #MathCulture
Me: what’s the French word for 100?
Class: cent
Me: (writes on board) per cent, /100
Student in the front row shouts: wait, WHAT?!!
Class: laughter and nodding
Entire class witnessing the lightbulb moment: priceless.
#edusky #teachmath #math #percent
Class: cent
Me: (writes on board) per cent, /100
Student in the front row shouts: wait, WHAT?!!
Class: laughter and nodding
Entire class witnessing the lightbulb moment: priceless.
#edusky #teachmath #math #percent
a black and white icon of a percent symbol
Alt: a black and white icon of a rotating percent symbol
media.tenor.com
December 4, 2024 at 4:14 AM
Me: what’s the French word for 100?
Class: cent
Me: (writes on board) per cent, /100
Student in the front row shouts: wait, WHAT?!!
Class: laughter and nodding
Entire class witnessing the lightbulb moment: priceless.
#edusky #teachmath #math #percent
Class: cent
Me: (writes on board) per cent, /100
Student in the front row shouts: wait, WHAT?!!
Class: laughter and nodding
Entire class witnessing the lightbulb moment: priceless.
#edusky #teachmath #math #percent
I need to anonymize student data for legal reasons using a 3rd party homework system (I'm going all-in on #MyOpenMath this year). Is there a smarter way to do this than emailing some randomly assigned user names (I'm thinking Transformers) to the students and keep my own look-up table? #TeachMath
August 3, 2025 at 6:03 PM
I need to anonymize student data for legal reasons using a 3rd party homework system (I'm going all-in on #MyOpenMath this year). Is there a smarter way to do this than emailing some randomly assigned user names (I'm thinking Transformers) to the students and keep my own look-up table? #TeachMath
Assignment I might try next semester: have ChatGPT do one of my old exams and have the students grade it. #teachmath #mathsky
November 29, 2025 at 11:42 PM
Assignment I might try next semester: have ChatGPT do one of my old exams and have the students grade it. #teachmath #mathsky
Teaching children to mindlessly follow algorithms is such a frustrating thing to try to combat as a teacher- these kids often resist attempts to make math make sense!
#Teachmath
@tdsbmath.bsky.social
#Teachmath
@tdsbmath.bsky.social
November 27, 2025 at 11:45 PM
Teaching children to mindlessly follow algorithms is such a frustrating thing to try to combat as a teacher- these kids often resist attempts to make math make sense!
#Teachmath
@tdsbmath.bsky.social
#Teachmath
@tdsbmath.bsky.social
Join me tonight for ...#elemmathchat#MathRoutines
#BackToSchoolMath
#MathChat
#MathTeachers
#MathConfidence
#MathMindset
#TeachMath
#MathTalks
#MathClassroom
#BackToSchoolMath
#MathChat
#MathTeachers
#MathConfidence
#MathMindset
#TeachMath
#MathTalks
#MathClassroom
September 19, 2024 at 2:20 AM
Cute #teachmath problem on noticing the dice in Disney's Space Mountain: All Systems Go #boardgame are not all identical.
You have three fair 6-sided dice. Two have 2 red faces and 4 blue, one has 3 red and 3 blue. Find the probabilities of rolling 0,1,2, or 3 red faces, and the expected number.
You have three fair 6-sided dice. Two have 2 red faces and 4 blue, one has 3 red and 3 blue. Find the probabilities of rolling 0,1,2, or 3 red faces, and the expected number.
January 1, 2025 at 11:17 PM
Cute #teachmath problem on noticing the dice in Disney's Space Mountain: All Systems Go #boardgame are not all identical.
You have three fair 6-sided dice. Two have 2 red faces and 4 blue, one has 3 red and 3 blue. Find the probabilities of rolling 0,1,2, or 3 red faces, and the expected number.
You have three fair 6-sided dice. Two have 2 red faces and 4 blue, one has 3 red and 3 blue. Find the probabilities of rolling 0,1,2, or 3 red faces, and the expected number.
Calc 3 is a weird class. I spend a ridiculous amount of time just on visualizing and working in 3D but it's hard to sell that it's actually the hard part. If you can get comfortable with that then the rest of the course is mostly just variants of Calc I and II with extra bookkeeping. #teachmath
February 21, 2025 at 5:31 PM
Calc 3 is a weird class. I spend a ridiculous amount of time just on visualizing and working in 3D but it's hard to sell that it's actually the hard part. If you can get comfortable with that then the rest of the course is mostly just variants of Calc I and II with extra bookkeeping. #teachmath
YOU ARE SO COOL. All feeds are completely open to anyone. Just go to Feeds (left-hand menu and just find some). I follow I TeachMath, EduSky, AcademicSky, Disabled In STEM, Disability Justice, Learning Sciences, QuiltSky- you get the point
November 12, 2024 at 3:15 AM
YOU ARE SO COOL. All feeds are completely open to anyone. Just go to Feeds (left-hand menu and just find some). I follow I TeachMath, EduSky, AcademicSky, Disabled In STEM, Disability Justice, Learning Sciences, QuiltSky- you get the point
Our probabilistic intuition is worse than we realize. One nice thing about a large class (51 present) is I can prove this with the birthday problem. The true probability is over 97%. Usually my classes are right around the break-even point of 23. #teachmath
September 12, 2025 at 4:38 PM
Our probabilistic intuition is worse than we realize. One nice thing about a large class (51 present) is I can prove this with the birthday problem. The true probability is over 97%. Usually my classes are right around the break-even point of 23. #teachmath
November 30, 2024 at 6:39 PM