Author | Lightnews

David Wees @davidwees.bsky.social · 8d

I'm now four weeks of using the #BTC routine with my students after seeing in action in a workshop with @peterliljedahl.bsky.social.

Today all but one of my students was fully engaged in thinking. It is consistently working really well with my students!

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Reposted by David Wees

Shelby Strong 💗💜💙 @sneffleupagus.bsky.social · 17d

Because @rob-baier.bsky.social won't stop bullying me, here's why I'm totally right about trapezoids having at least one pair of parallel sides:

www.strongermath.com/trapezoids-a...

Trapezoids – An Argument for Inclusion, Stronger Math

Picture a trapezoid. What comes to mind?Does it look something like this? That’s what trapezoids looked like to me, anyway

www.strongermath.com

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David Wees @davidwees.bsky.social · 16d

My favorite argument for the inclusive definition is that the area of a trapezoid formula reduces to the other area formulas under the same conditions that the other quadrilaterals do as subsets of trapezoids.

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Reposted by David Wees

Michael Pershan @mpershan.bsky.social · 18d

Sal Khan's career is very much a "right place right time" situation and he has not learned a single thing about teaching in all these years.

Annie Abrams @annieabrams.bsky.social · 18d

sal khan on his true north knowledge.wharton.upenn.edu/article/at-k...

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Reposted by David Wees

Michael Pershan @mpershan.bsky.social · 18d

Did something fun early enough on the internet and got to have his opinions taken seriously forever.

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David Wees @davidwees.bsky.social · Sep 19

For the remainder problem, I'm well aware of modulo notation, which would be really useful here, but my students are not, and it couldn't figure out how to connect it neatly to a meaningful context for the students. #btc #mathed #mathsky

David Wees @davidwees.bsky.social · Sep 19

Here are two tasks I used back to back that worked really well, for my goals for those two days. #btc #mathed #mathsky

A sequence of BTC problems focused on scientific notation.

A sequence of BTC thin slicing problems focused on finding remainders of large numbers.

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David Wees @davidwees.bsky.social · Sep 19

Is there a community created pool of thin-slicing tasks for the Thinking Classroom model somewhere?
#btc #mathed #mathsky

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David Wees @davidwees.bsky.social · Sep 4

How are the fraction additions different? How are they similar?
How are the visuals different? How are they similar?

Which visual goes with which fraction addition and how do you know?

#connectingreps #mathsky #mathchat

$The image shows 3 fraction additions, 2/3 + 1/4, 3/2 + 3/4, and 2/3 + 1/3 and two visuals: one showing 8/12 and 4/12 each drawn using a bar model, and 8/12 and 3/12 drawn using a bar model.$

David Wees @davidwees.bsky.social · Sep 3

Yeah, that definitely seems like a reasonable interpretation to me. I might re-use some of these representations when it comes time to work on the distributive rule.

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David Wees @davidwees.bsky.social · Sep 3

My plan is to introduce the ways in which I want students to collaborate slowly, over time, rather than all at once.

David Wees @davidwees.bsky.social · Sep 3

The activity went very well! Every single student was able to engage with the task and make significant headway without too much work from me. We needed a break from the heavy collaboration we'd been doing over the past while.

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David Wees @davidwees.bsky.social · Sep 3

Here's a worksheet I gave students today. The idea is to reinforce integer operations (and a chip model) through solving equations. An example of what to produce for an answer is given for each type of problem, except the equations on the last page.
docs.google.com/document/d/1...

#mathed #mathsky

Solving Integer Equations Worksheet

Solving Integer Equations Worksheet Try to find the value of the ?. Two examples have been done for you. A x + 2 = 5 3 + 2 = 5 B C 2x + 2 = 8 2(3) + 2 = 8 D E F Try to find the value...

docs.google.com

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David Wees @davidwees.bsky.social · Sep 1

Here's new #connectingrepresentations task I created and used a few days ago with my 7th graders.

How are the number lines similar? How are they different?

Which list of numbers goes with which number line, and how do you know?

#mathed #mathchat #mathsky

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David Wees @davidwees.bsky.social · Sep 1

Here's a blog post talking about the advantages of using the approach I created for completing the square. I'm hopeful this approach will also work for this similar mathematics.

mathcoachblog.com/2017/06/05/a...

#mathed #mathsky

Area Models and Completing the Square

I’m nearing the end of my time with my 9th graders, with this week dedicated to moving beyond factoring as the sole method for solving quadratic equations and towards more general methods lik…

mathcoachblog.com

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David Wees @davidwees.bsky.social · Sep 1

I created a resource similar to the Completing the Square resource I created a few years ago for supporting students with "micro-discoveries" related to multiplying binomials.

Check it out: docs.google.com/document/d/1...
#mathed #mathsky

Multiplying Binomials

Multiplying Binomials 1. Write a quadratic expression in both x2 + bx + c and (x + h)2 form for each visual. One example is given. A B C x2 + 6x + 9 (x + 3)2 D E F 2. Write a qua...

docs.google.com

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Reposted by David Wees

Nat Banting @natbanting.bsky.social · Aug 24

Any old #bcedchat folks have a lead on a veteran math history teacher??

Math Gnome @noamloyola.bsky.social · Aug 24

BC has a grade 11 math history course!!

Have any BC math educators on here taught this course? If so, what was your experience?

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David Wees @davidwees.bsky.social · Aug 17

They'd like someone who has merged academia and industry and can give life and career advice. The event is in English because it will bring young leaders together from around the country.

Is anyone interested in helping out?

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David Wees @davidwees.bsky.social · Aug 17

My son is looking for a volunteer speaker for a student event he is co-organizing meant to inspire and empower university student leaders. The event will be in Montreal, probably on September 20th.

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David Wees @davidwees.bsky.social · Aug 6

This is so funny.

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David Wees @davidwees.bsky.social · Aug 4

I've created a new streamlined page for my educational consulting services on my website to help schools and educators who are looking for support answering these questions. Check it out here: davidwees.com/services/

Let me know how we can work together!

#mathed #edtech #mathematics

Services – The Reflective Educator

davidwees.com

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David Wees @davidwees.bsky.social · Aug 4

How can we inspire educators to do the challenging work that is required to develop and extend their practice? What role do routines play in student learning? How do we help educators focus on the right metrics for learning? What role does technology play in student learning?

Services – The Reflective Educator

davidwees.com

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David Wees @davidwees.bsky.social · Aug 4

This diagram encapsulates for me the reason why formative assessment is so critical! It also helps justify the need for visual representations of mathematics to increase the pathways for understanding. #mathed #learning #communication

A Venn Diagram showing four nested ovals. In the outside oval, the caption reads, "What I think." In the next oval nested inside, the caption reads, "What I can put into words." The next nested oval reads, "What I say to other people." The final smallest nested oval reads, "What they understand."

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David Wees @davidwees.bsky.social · Aug 1

Oh goodie, customer service is going to get even worse.

Brendan Davey @brendandavey.bsky.social · Jul 30

Yo, historians, what the actual ****?

I've seen how LLMs handle "history." This is... not good.

🗃️

David Wees @davidwees.bsky.social · Jul 26

Ooo, thanks for the reminder. I might have forgotten about these.

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