Tim Chartier
@timchartier.bsky.social
husband, father, friend, Joseph R. Morton Professor of Math & CS at @DavidsonCollege, sports analyst, professionally trained mime, puppeteer
PEMDAS isn’t about memorizing an order—it’s about avoiding chaos.
Bob the Counting Sheep gets a visual explanation (with a little help) of why order matters in math.
More sketches at Math Figures: www.youtube.com/@mathfigures...
#iTeachMath #MathEducation
Bob the Counting Sheep gets a visual explanation (with a little help) of why order matters in math.
More sketches at Math Figures: www.youtube.com/@mathfigures...
#iTeachMath #MathEducation
January 12, 2026 at 3:15 PM
PEMDAS isn’t about memorizing an order—it’s about avoiding chaos.
Bob the Counting Sheep gets a visual explanation (with a little help) of why order matters in math.
More sketches at Math Figures: www.youtube.com/@mathfigures...
#iTeachMath #MathEducation
Bob the Counting Sheep gets a visual explanation (with a little help) of why order matters in math.
More sketches at Math Figures: www.youtube.com/@mathfigures...
#iTeachMath #MathEducation
What does it mean to get
closer and
closer and
closer
to zero without arriving?
In mathematics, approaching can matter—even without arriving.
More sketches at Math Figures: www.youtube.com/@mathfigures...
#iTeachMath #MathEducation #MathArt
closer and
closer and
closer
to zero without arriving?
In mathematics, approaching can matter—even without arriving.
More sketches at Math Figures: www.youtube.com/@mathfigures...
#iTeachMath #MathEducation #MathArt
January 9, 2026 at 4:16 PM
What does it mean to get
closer and
closer and
closer
to zero without arriving?
In mathematics, approaching can matter—even without arriving.
More sketches at Math Figures: www.youtube.com/@mathfigures...
#iTeachMath #MathEducation #MathArt
closer and
closer and
closer
to zero without arriving?
In mathematics, approaching can matter—even without arriving.
More sketches at Math Figures: www.youtube.com/@mathfigures...
#iTeachMath #MathEducation #MathArt
Zippy thinks he’s good at math because he’s quick.
A second grader shows him where he went wrong.
Speed isn’t understanding.
Thinking matters.
Videos appearing at: www.youtube.com/@mathfigures...
A second grader shows him where he went wrong.
Speed isn’t understanding.
Thinking matters.
Videos appearing at: www.youtube.com/@mathfigures...
January 5, 2026 at 3:56 PM
Zippy thinks he’s good at math because he’s quick.
A second grader shows him where he went wrong.
Speed isn’t understanding.
Thinking matters.
Videos appearing at: www.youtube.com/@mathfigures...
A second grader shows him where he went wrong.
Speed isn’t understanding.
Thinking matters.
Videos appearing at: www.youtube.com/@mathfigures...
What is a function… and what definitely is not? 🤔 Puppet Dr. C introduces a very pushable example: touch a button → get a predictable result.
Math with puppets, clarity, and a little mischief.
▶️ More videos coming soon: youtu.be/yn3hPqJQBs8 #MathEducation #ITeachMath #TeachingWithJoy
Math with puppets, clarity, and a little mischief.
▶️ More videos coming soon: youtu.be/yn3hPqJQBs8 #MathEducation #ITeachMath #TeachingWithJoy
January 2, 2026 at 8:21 PM
What is a function… and what definitely is not? 🤔 Puppet Dr. C introduces a very pushable example: touch a button → get a predictable result.
Math with puppets, clarity, and a little mischief.
▶️ More videos coming soon: youtu.be/yn3hPqJQBs8 #MathEducation #ITeachMath #TeachingWithJoy
Math with puppets, clarity, and a little mischief.
▶️ More videos coming soon: youtu.be/yn3hPqJQBs8 #MathEducation #ITeachMath #TeachingWithJoy
I'm in charge of the depart mental display. I have a few slides for "finals". I thought I'd share.
December 8, 2025 at 6:13 PM
I'm in charge of the depart mental display. I have a few slides for "finals". I thought I'd share.
I'm in charge of the depart mental display. I have a few slides for "finals". I thought I'd share. This one works for faculty too! 😀
December 8, 2025 at 6:12 PM
I'm in charge of the depart mental display. I have a few slides for "finals". I thought I'd share. This one works for faculty too! 😀
When I see a .1% chance of a comeback with under two minutes left in the game, I try to think of the type of circumstances that make up that .1% probability. Suggestions?
September 28, 2025 at 8:36 PM
When I see a .1% chance of a comeback with under two minutes left in the game, I try to think of the type of circumstances that make up that .1% probability. Suggestions?
Simply stunning. A bee traversing a spiral? #photography
September 22, 2025 at 12:22 PM
Simply stunning. A bee traversing a spiral? #photography
Magical one point perspective. A fairy ring in the redwoods. #photography
September 20, 2025 at 5:13 PM
Magical one point perspective. A fairy ring in the redwoods. #photography
When rowboats dream, they rest on land. #Photography
September 20, 2025 at 12:45 PM
When rowboats dream, they rest on land. #Photography
A quiet reminder that every wave leaves its mark, then makes space for the next. #photography
September 19, 2025 at 1:29 PM
A quiet reminder that every wave leaves its mark, then makes space for the next. #photography
Whenever I see this hand, I think of the end product of working out a complicated math problem.
September 19, 2025 at 12:58 AM
Whenever I see this hand, I think of the end product of working out a complicated math problem.
An ode to pi? The symbol, a sphere and portions of pi on Santa Cruz Wharf. #photography
September 19, 2025 at 12:40 AM
An ode to pi? The symbol, a sphere and portions of pi on Santa Cruz Wharf. #photography
Walking through the redwoods of UC Santa Cruz. #photography
September 18, 2025 at 8:33 PM
Walking through the redwoods of UC Santa Cruz. #photography
When the recycling bin is bigger than the landfill bin, it’s more than just design — it’s a reflection of how we value sustainable waste management.
September 18, 2025 at 2:55 PM
When the recycling bin is bigger than the landfill bin, it’s more than just design — it’s a reflection of how we value sustainable waste management.
Math behind Mario? Here is Desmos of a walking Mario. www.desmos.com/calculator/k...
September 13, 2025 at 12:13 PM
Math behind Mario? Here is Desmos of a walking Mario. www.desmos.com/calculator/k...
Some of this week’s mathy art.
September 12, 2025 at 8:39 PM
Some of this week’s mathy art.
This morning’s welcome. #photography
September 12, 2025 at 12:34 PM
This morning’s welcome. #photography
Falling into square!
September 11, 2025 at 8:07 PM
Falling into square!
Sharing some of the morning beauty. #photography
September 11, 2025 at 2:22 PM
Sharing some of the morning beauty. #photography