WEAR A MASK Educator, Father, Husband, Canoeist, Punist, Empowering Modern Learners, Outdoor Education, and Math. He/Him.

Joined January 2009
3,037 Photos and videos
Today is one of my favourite words. Friggatriskaidekaphobia (the fear of Friday the 13th) @CBCHereandNow #funwords #saythatthreetimesfast
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Donald Campbell retweeted
8 Aug 2025
A fun mental math trick: Mentally calculating cube roots
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Donald Campbell retweeted
Here are the resources shared at this 2nd BTC presentation “Seeing Grading in a Thinking Classroom in Action” @pgliljedahl #BTCthinks #NCTMCHI24 Auto-grading rubric: tinyurl.com/BTCrubric 3 question types for 2 objectives: tinyurl.com/BTCquest

28 Sep 2024
Replying to @MrsSheehanMath
Heard from @TimBrzezinski all about how grading works in a thinking classroom. Although I’m not grading to that level yet, he did a great job of making it look super doable and walking us through some issues we may have and how to fix them. #nctmchi24
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Donald Campbell retweeted
28 Sep 2024
The verdict is in & Forest Guardians @DarcelSeniorPS won 1st place at the World Robotic Olympiad in Italy. They are the first Canadian team to win 1st place @WROOfficial. We are so proud of our FSL Future Innovators. Thank you for all the support @PeelSchools @peel21st
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Replying to @metromorning
@metromorning a hero is also a sandwich. #justsaying.
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Also those hot dog jokes were the wurst
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Morning!!!
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Donald Campbell retweeted
18 May 2024
Shadowology [📹 vincent_bal] x.com/i/status/1791606400138…

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Neutrality in education is a myth. #Oame2024 #OntEd
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Snapshot of #ThinkingClassroom planning to idea to execution. Distributive property intro using area model. #OntEd
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This whole thread.
Many pro-direct instruction folks are using a recent article from BNN as evidence against inquiry-based learning, thinking classrooms, etc. I respect these people as educators who, like me, want what's best for students. But, let's dig into what this study actually tells us.
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Donald Campbell retweeted
How might white-supremacy culture show up in math class? #iteachmath
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Donald Campbell retweeted
19 Jan 2024
Your mathematician name is: Your first name Your last name
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Transformation Tetris for ⁦@desmosclassroom⁩ ⁦@Desmos#mtbos #iteachmath teacher.desmos.com/activityb…
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Wow Wow wow. Thanks @fawnpnguyen that is a powerful document.
I need some sort of "monitoring" sheet while facilitating group work. Could you use something like this? #MTBoS #Iteachmath docs.google.com/presentation…
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Donald Campbell retweeted
Happy New Year!
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Donald Campbell retweeted
5 Nov 2023
Research shows that teachers who are more confident in their abilities tend to use more innovative techniques, which lead to more learning gains. Check out education coach @JorgeDoesPBL’s tips on becoming a more confident teacher. 🤩👇 edut.to/3seIHm7
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Donald Campbell retweeted
I get asked a lot about how I design #ThinkingClassroom lessons. Where do I get started? And I think this image from a talk @ddmeyer gave at @OAMEcounts in Kingston is where I get started. What "fake" math can you get your students to do that involves "real" work?
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