#MathSky🧮
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benjamindickman.bsky.social
Collection of 8 integers; the mean, median, unique mode, and range: all 8

What is the biggest possible element of the collection?

Source: AMC

Same as above, but change 8s to 5.

Source: students

Same as above, but change 8s to n.

Source: today's department meeting!

#iTeachMath ♾️ #MathSky 🧮
November 5, 2025 at 10:35 PM
mrvalencia24.bsky.social
Tonight calc ss @lehmancollege.bsky.social started class with a #SameDiffMath activation routine comparing two Power Rules💪🦾 #MathPlay 🧮

#ITeachMath #MTBoS #MathsToday #EduSky #MathSky #ThinkingClassrooms #BuildingThinkingClassrooms #Math
November 6, 2025 at 11:31 PM
mrvalencia24.bsky.social
Fraction #MathPlay 🧮 via @phetsims.bsky.social 👨‍👧➗

#ITeachMath #MTBoS #ElemMathChat #MathsToday #MathSky #EduSky #STEM #EdTech #EdChat

phet.colorado.edu/sims/html/fr...
November 2, 2025 at 5:38 PM
ajsteinmetz.com
#TIL the mathematician #Fibonacci (b. 1170) was one of the early promoters of the Indo-Arabic numeral system in Europe in his 13th century book Liber Abaci where he also printed the now famous Fibonacci sequence 1, 2, 3, 5, 8, 13, ... as a solution to the "rabbit problem." #Science #MathSky 🧪🧮
A page of Fibonacci's Liber Abaci from the Biblioteca Nazionale di Firenze showing (in box on right) 13 entries of the Fibonacci sequence.
October 29, 2025 at 4:44 PM
mrvalencia24.bsky.social
Tonight calc ss @lehmancollege.bsky.social got to #MathPlay 🧮 while investigating🕵️‍♂️ the derivative of the natural exponential function🤯

#ITeachMath #MTBoS #MathSky #MathsToday #EduSky #STEM #EdTech #EdChat #Math
October 28, 2025 at 11:34 PM
benjamindickman.bsky.social
problem posing context: Bingo

what would be a good problem to pose?

#iTeachMath ♾️ #MathSky 🧮

added context: i just attended a [slightly belated] Hispanic Heritage Month lunch, and there were multiple simultaneous Bingo winners. and now i have math on the mind! 🧠
October 29, 2025 at 5:37 PM
wisarchive.bsky.social
American mathematician Olive Clio Hazlett was born 135 years ago today. A keen algebraist specializing in nilpotent algebras and the arithmetic of algebra, she struggled her whole life with mental health issues, ultimately residing in a state mental hospital for 9 years.

#WomenInSTEM #MathSky 🧮
October 27, 2025 at 2:13 PM
wisarchive.bsky.social
Wishing a happy 90th birthday to Gloria Conyers Hewitt, the group theorist who in 1962 became the fourth Black woman to earn a PhD in mathematics, and went on to become, in 1995, the 1st Black woman to chair a US mathematical department.

#WomenInSTEM #MathSky #BlackWomenInSTEM 🧮
October 26, 2025 at 5:14 PM
wisarchive.bsky.social
Mathematician Marguerite Lehr was born 127 years ago today. Working in algebraic geometry, Lehr was a tentpole presence at Bryn Mawr from 1925 to her retirement in 1967 who also pushed the boundaries of #scicomm with a tv math program she hosted in the 1950s.

#WomenInSTEM #MathSky 🧮
October 22, 2025 at 2:06 PM
mrvalencia24.bsky.social
Pattern blocks spider 🕷️🕸️ via #MathPlay 🧮

#ITeachMath #MTBoS #ElemMathChat #EduSky #EdChat #MathSky #MathsToday
October 13, 2025 at 4:33 PM
mrvalencia24.bsky.social
Which One Doesn't Belong?🤔 - #Fuggler Edition #MathPlay 🧮

#WODB #ITeachMath #ElemMathChat #MathSky #MathsToday #EduSky
October 12, 2025 at 5:47 PM
wisarchive.bsky.social
Wishing a happy 76th birthday to mathematician Fan Chung, whose work on Graph Theory Combinatorics gave us startling insights into the fate of massively interconnected systems like the Internet.

tinyurl.com/7yzbja29

#WomenInSTEM #MathSky 🧮
The Billion Roads from Here to There: The Graph Theory Combinatorics of Fan Chung
‘Well, some go this way, some go that way. But as for me, myself, personally, I prefer the short-cut.’ – The Cheshire Cat Every morning we wake to a deafening barrage of choice, decisions that crackle...
tinyurl.com
October 9, 2025 at 2:01 PM
wisarchive.bsky.social
Wishing a happy 92nd birthday to mathematician Mary Lovenia Deconge Watson, the first Black woman to teach at Loyola University, and an educational reformer whose department at Southern University earned national recognition as a Model Department.

#WomenInSTEM #MathSky 🧮

tinyurl.com/mrxj66r9
An Ascending Arc: The Educator’s Journey of Mathematician Lovenia Deconge Watson
In one sense, the story of Lovenia Deconge Watson (b. 1933) is the story of thousands of bright young Black women, born in the South in the 1930s, exhibiting gifts early on and struggling through a my...
tinyurl.com
October 3, 2025 at 1:53 PM
mrvalencia24.bsky.social
Scary Visual Patterns via #MathPlay 🧮🎃 - How many shapes on the next bat🦇❓

#ITeachMath #MTBoS #ElemMathChat #STEM #EduSky #MathSky #MathsToday @fawnnguyen.substack.com
October 2, 2025 at 10:05 PM
mrvalencia24.bsky.social
Tonight #calculus ss @lehmancollege.bsky.social were able to connect the axis of symmetry (from algebra class) to the slope of the tangent line. I deeply enjoy the consistency one finds in mathematics😎 #MathPlay 🧮🤸‍♀️

#ITeachMath #MTBoS #EduSky #MathSky #MathsToday #STEM #Maths #Math
September 30, 2025 at 11:08 PM
mrvalencia24.bsky.social
Addition #MathPlay 🧮 using manipulatives 🎲➕

#ITeachMath #MTBoS #MathSky #MathsToday #EduSky #ElemMathChat #STEM
September 28, 2025 at 3:29 PM
benjamindickman.bsky.social
Final output below! Not bad for a first month of school precalc project (polar graph grid in Desmos, trig coordinates, 3D print your own logo/trinket)

Check out the thread below for more info and photos from the journey 📐

#iTeachMath ♾️ #MathSky 🧮

@desmos.com ✨
photograph of the 3D printed graphs laid out on a white table, colors include green red yellow grey purple white pink
September 25, 2025 at 8:24 PM
mrvalencia24.bsky.social
Feeling grateful to share that over 1000 #math educators have registered for “Facilitating #MathPlay 🧮 with @geogebra.org Classroom" @makemathmoments.bsky.social
Virtual Summit👩‍💻👨‍🏫
#mmmsummit2025 #ITeachMath #MTBoS #EduSky #MathSky #MathsToday

Register 🆓👇
summit.makemathmoments.com?sc=1doA9beS&...
September 20, 2025 at 7:14 PM
threadedtheorems.bsky.social
This embroidery design depicts the region around a saddle point on a 3D surface. A saddle point is a critical point on a surface where the the gradient is zero but instead of being a peak or valley, the surface curves up in one direction and down in another.
🧶 🧮 #MathSky #embroidery #handembroidery
September 19, 2025 at 11:03 PM
zorlo.bsky.social
I'm attending the 2025 Make Math Moments Virtual Summit from @makemathmoments.bsky.social #mmmsummit2025 🧮
summit.makemathmoments.com
#EduSky #MathSky #iteachmath #mtbos
2025 Make Math Moments Virtual Summit
Free high impact MATH PD from your couch! Hosted by @makemathmoments #mmmsummit2025
summit.makemathmoments.com
September 19, 2025 at 2:22 AM
mrvalencia24.bsky.social
Today ss started class with a fun #MathPlay 🧮 activation -Who is represented by each point on the scatter graph? Thoughtful discussion and collaboration to arrive to our solution😎 (Source M. Swan)

#ITeachMath #MTBoS #EduSky #MathsToday #MathSky #Math #Maths
September 12, 2025 at 3:15 PM
mrvalencia24.bsky.social
Whether you're exploring number sense with younger learners or continuity with calc ss @lehmancollege.bsky.social, #WODB is such a powerful and inviting routine for ALL to participate #MathPlay 🧮

#ITeachMath #MTBoS #EduSky #MathSky #EdChat #MathsToday #Math #Maths
September 11, 2025 at 11:34 PM
edsouthall.bsky.social
Another great nerdherd gathering yesterday 🤓🍻🧩🧮
#mathsky
October 20, 2023 at 3:50 PM
mrvalencia24.bsky.social
Dot Product Definition via Star Wars #MathPlay 🧮 ⚫️✖️
#EduSky #MathSky #MathsToday #ITeachMath #MTBoS #EdChat
December 8, 2024 at 3:23 PM
zorlo.bsky.social
#MathSky 🧮 #EduSky 🍎
#iteachmath #iteachmaths
#AdultNumeracy 🔢
#WODB #NoticeandWonder
benjamindickman.bsky.social benjamin dickman @benjamindickman.bsky.social · Apr 14
photos of #SidewalkMath

all four photos of various chalked arithmetic and patterning next to the Alice in Wonderland pond in Central Park

each student came prepared w 1 or 2 items to sketch for our #MathsToday ♾️

back tomorrow, weather permitting!
April 14, 2025 at 8:01 PM