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davidpetro314.bsky.social
DavidPetro314
@davidpetro314.bsky.social
380 followers 130 following 84 posts
I am tribal. Math is one of my tribes & so is Ironman Triathlon. Though here I only post about Math & Science. Oame PastPresident Desmos Fellow #MTBoS
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davidpetro314.bsky.social
DavidPetro314 @davidpetro314.bsky.social · Nov 24
The #math community seems to be growing here and becoming more active. I have presented on how to get the most of being in a community like this many times and here are my tips to grow this PLN and make it useful for educators.

Bonus Tip - Use the Feeds:
#MathChat #MTBoS #iTeachMath #MathSky
Tips to move beyond a “lurker” (and/or start to interact with the Online Math Community) Like - Who benefits: You (it acts like a bookmark) & the Poster (“Yay someone liked what I said”) Repost - Who benefits: You (it acts like a bookmark), the Poster (“Wow, they liked enough to share it”) & the rest of us (Reposting sends it back to the top of the feed increasing the chance of your followers and their followers to see it) Comment - Who benefits: You (interaction brings more friends and knowledge), the Poster (the conversation they started continues) & us (entices us to become part of the conversation too) Post - Who benefits: You (sharing thoughts and resources help to hone your own ideas) & Everyone else (the more discussion, the higher the chance we all learn) Tips for making your Posts more visible: Add an image - including a visual has been shown to increase the interaction Include hashtags (not too many) - a hashtag categorizes your Post and makes it visible to a wider audience than just your followers. Here are some math related hashtags that relate to education: #MathChat #MathsChat #MTBoS #iTeachMath #ElemMathChat #MathArt #MathSky Tag some people (not too many) - you can tag relevant people (even those who don’t follow you) in the Post or in the Image to increase the conversation potential
davidpetro314.bsky.social
[New Post] Ontario Math Links - My favourite #math related links from this week:

ontariomath.blogspot.com/2025/11/math...

links and help from @robertkaplinsky.com @howiehua.bsky.social @karencampe.bsky.social @infobeautiful.bsky.social and more #MathChat #MTBoS #iTeachMath
November 9, 2025 at 8:00 PM
davidpetro314.bsky.social
I wrote a blog post about Plickers over 10 years ago. Thanks for the reminder:

wecdsbit.blogspot.com/2014/11/plic...
November 8, 2025 at 1:52 PM
Reposted by DavidPetro314
benjamindickman.bsky.social
who is more likely to win, according to your intuition, in a game of war?

Scenario 1:

Player A with 4 aces
Player B with the other 48 cards

Scenario 2:

Player A with 4 aces and 4 kings
Player B with the other 44 cards

cc #iTeachMath ♾️ #MathSky 🧮
November 7, 2025 at 6:31 PM
Reposted by DavidPetro314
infobeautiful.bsky.social
Dude, bro, buddy, fella

by Quartz @qz
qz.com/316906/the-d...
This image is a map of the continental United States showing regional usage of the word "bro" as a term of address among American men. Titled "BRO" in large purple text at the top left, the map uses varying shades of pink to purple to indicate frequency, with darker areas showing higher usage. The darkest regions—suggesting "bro" is very common—are concentrated in Texas and surrounding states including Louisiana, Oklahoma, Arkansas, and parts of the South and Midwest. The Northeast and West Coast show lighter shades, indicating lower usage. Above the map, gray buttons labeled “buddy,” “dude,” “fella,” and “pal” suggest that the map is part of a broader interactive dataset showing regional slang preferences. A small credit in the bottom left attributes the source as Quartz, based on Twitter data analyzed by Grieve and Guo.
November 6, 2025 at 11:55 PM
davidpetro314.bsky.social
[New Podcast] This episode features Stacey Jacobs previewing their Nov 12th @oamecounts.bsky.social members only webinar "Empowering Math Learners: Executive Function Strategies to Support Math Learning". More info:

talks.oame.on.ca/season-8

#MathChat #MTBoS #iTeachMath
November 4, 2025 at 4:01 AM
Reposted by DavidPetro314
karencampe.bsky.social
November is here, and so is the next Calendar of problems!
Enjoy these with your students or for yourself, share your thinking here or on the post.
#MTBoS #iTeachMath #T3Learns #MathSky #RecreationalMath #MathsToday
karendcampe.wordpress.com/2025/11/01/n...
November Calendar Problems
Wow, November has blown in with some wild weather, but at least we can get an extra hour of sleep tonight as we “fall back” to standard time. It’s a busy month at school, as the f…
karendcampe.wordpress.com
November 1, 2025 at 12:19 PM
Reposted by DavidPetro314
kathyhen.bsky.social
Hey #mtbos #ITeachMath friends - @jedediyah.com and I will be hosting a free, @amplifyeducation.bsky.social webinar this Thursday evening on the basics of building an Amplify Classroom activity. We would love for you to join us! Here's the sign up link: amplify.com/event/intro-...
Intro to Activity Building
Join us for an upcoming K-12 webinar, online event, or podcast. You can browse all of our events by month. Sign up and click Register Now.
amplify.com
November 2, 2025 at 11:17 PM
davidpetro314.bsky.social
[New Post] Ontario Math Links - My favourite #math related links from this week:

ontariomath.blogspot.com/2025/10/math...

Links and help from @howiehua.bsky.social and more #MathChat #MTBoS #iTeachMath
November 3, 2025 at 12:37 AM
davidpetro314.bsky.social
[New Post] Ontario Math Links - My favourite #math related links from this week:

ontariomath.blogspot.com/2025/10/math...

links and help from @robertkaplinsky.com @howiehua.bsky.social @emmalalas.bsky.social @themathguru.bsky.social @pgliljedahl.bsky.social and more #MathChat #MTBoS #iTeachMath
October 26, 2025 at 4:26 PM
Reposted by DavidPetro314
NCTM 2025 in Atlanta was inspiring! Please watch the IGNITE talk by my mentor, Dr. Dawn Pilotti on how to fix Mathematics education for students with learning differences. youtu.be/YPvpfOl-lIw #iTeachMath ♾️ #MTBoS #EduSky #MathSky
Dawn Pilotti--NCTM IGNITE 2025, Elevate Student Voices
YouTube video by Dawn Pilotti
youtu.be
October 20, 2025 at 1:39 AM
davidpetro314.bsky.social
[New Post] Ontario Math Links - My favourite #math related links from this week:

ontariomath.blogspot.com/2025/10/math...

Links and help from @howiehua.bsky.social @looneymath.bsky.social @mnmmath.bsky.social @abeljennifer.bsky.social @benjamindickman.bsky.social &more
#MathChat #MTBoS #iTeachMath
October 19, 2025 at 6:38 PM
Reposted by DavidPetro314
abeljennifer.bsky.social
📢 New on the blog: “Bridging the Gap: Building Math Confidence Through Equity and Vocabulary” 💬✨ Empower student agency, promote rich vocab, and boost confidence. Read it now: mathsational.blogspot.com/2025/10/bridging-gap-building-math-confidence.html #MTBoS #iTeachMath
Bridging the Gap: Building Math Confidence Through Equity and Vocabulary
Too often, the powerful ideas of equity and cultural responsiveness seem abstract, leaving teachers unsure of how to translate them into c...
mathsational.blogspot.com
October 12, 2025 at 3:46 PM
Reposted by DavidPetro314
benjamindickman.bsky.social
[digging through my twittxr archives]

do you want non-routine quadratic problems?

here are 20 💌:
www.desmos.com/calculator/d...

cc. #iTeachMath #MathSky #EduSky #AlgebraSky
Particular Parabola Problems
www.desmos.com
October 12, 2025 at 5:26 PM
Reposted by DavidPetro314
howiehua.bsky.social
Is the 6" or 7" slice of pizza the better deal?
October 11, 2025 at 2:20 PM
davidpetro314.bsky.social
This is great from @howiehua.bsky.social I have always called these "equation strips" but definitely love them for solving 1 and 2 step equations. Here are some resources I've put together

engaging-math.blogspot.com/2017/01/equa...

#MathChat #MTBoS #iTeachMath
howiehua.bsky.social Howie Hua @howiehua.bsky.social · Oct 12
I highly recommend introducing solving linear equations with bar models and here's why.
October 12, 2025 at 4:43 PM
davidpetro314.bsky.social
[New Post] Ontario Math Links - My favourite #math related links from this week:

ontariomath.blogspot.com/2025/10/math...

Links and help from @pgliljedahl.bsky.social @fawnnguyen.substack.com @howiehua.bsky.social and more #MathChat #MTBoS #iTeachMath
October 12, 2025 at 4:37 PM
Reposted by DavidPetro314
mnmmath.bsky.social
🎨✨ Math meets art!
Join us for #ElemMathChat
📅 Thurs, 10/9
🕗 8pm CST | 9pm EST
👩‍🏫 Host: Dee Crescitelli
@dcrescitelli.bsky.social
Topic: Math in Art (Beautiful Math)
Let’s talk patterns, symmetry, and the beauty of math in creativity.
#MathEd #ITeachMath #MTBoS #ElemMathChat
October 7, 2025 at 9:09 PM
davidpetro314.bsky.social
[New Post] Ontario Math Links-My favourite #math related links from this week:

ontariomath.blogspot.com/2025/10/math...

Links&help from @howiehua.bsky.social @karencampe.bsky.social @quantamagazine.bsky.social @dawndelvecchio.bsky.social @calarmstrong.bsky.social &more #MathChat #MTBoS #iTeachMath
October 5, 2025 at 6:04 PM
Reposted by DavidPetro314
oamecounts.bsky.social
𝓢𝓱𝓪𝓻𝓲𝓷𝓰 𝓑𝓮𝓼𝓽 𝓟𝓻𝓪𝓬𝓽𝓲𝓬𝓮𝓼: the 27th annual TEAMS Math Conference t Brebeuf College School, Sat, Oct 25, 9:30-12:30.
Keynote by @jrappaport27.bsky.social then a breakout session & light lunch.
$15 OAME members, $20 non-members.
More info & to register drive.google.com/file/d/1LggM...
#onted #mtbos
TEAMS Conference Registration 2025.pdf
drive.google.com
October 4, 2025 at 11:49 AM
Reposted by DavidPetro314
calarmstrong.bsky.social
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
October 2, 2025 at 12:49 PM
Reposted by DavidPetro314
karencampe.bsky.social
October is here & so is the next month's #ProblemSolving calendar!

Share your thinking (& your students' thinking) here or on the post.
#MTBoS #iTeachMath #T3Learns #RecreationalMath #MathsToday

karendcampe.wordpress.com/2025/10/01/o...
October Calendar Problems
October is here, and with it the crisp fall air here in the northeast US. No matter where you are, you can get a breath of fresh air with some problem solving in your math classes! Here is the 2015…
karendcampe.wordpress.com
October 1, 2025 at 12:12 PM
Reposted by DavidPetro314
dawndelvecchio.bsky.social
www.quantamagazine.org/new-math-rev... New Math Revives Geometry’s Oldest Problems. Using a relatively young theory, a team of mathematicians has started to answer questions whose roots lie at the very beginning of mathematics. #math #maths #geometry #enumerativegeometry #mathsky #iteachmath #MTBoS
New Math Revives Geometry’s Oldest Problems | Quanta Magazine
Using a relatively young theory, a team of mathematicians has started to answer questions whose roots lie at the very beginning of mathematics.
www.quantamagazine.org
September 28, 2025 at 3:54 PM
davidpetro314.bsky.social
[New Post] Ontario Math Links - My favourite #math related links from this week:

ontariomath.blogspot.com/2025/09/math...

Links and help from @diffgeom.com @robertkaplinsky.com @howiehua.bsky.social @edutopia.org @jennalaib.bsky.social and more #MathChat #MTBoS #iTeachMath
September 28, 2025 at 3:43 PM
Reposted by DavidPetro314
diffgeom.com
Although my online shop Differential Geometry is a primary source of income, I maintain (on a static html site) a list of other creators' mathematical online shops:

www.diffgeom.org/misc/math_sh...

I hope you will browse and support us all!

#MathSky #MathArt #ITeachmath #SmallBusiness
A deep blue mottled annulus surrounds a black hole, or the moon's disk during a total solar eclipse. On closer gaze, silver ant-like shapes follow each other endlessly around a torus. The torus is tiled with a golden hexagonal grid. Each ant is isolated in its own cell.
September 21, 2025 at 2:38 PM
Reposted by DavidPetro314
edutopia.org
By revealing graphs piece by piece, teachers can build student curiosity and guide them to more effectively make sense of data! 📊

#DataLiteracy #EduSky #MathSky
The Power of Slow Reveal Graphs
Teachers can leverage students’ curiosity to explore visual representations of data in an engaging way.
edut.to
September 21, 2025 at 2:34 AM