Math Links for Week Ending Feb 23, 2024

Featured Links

If you haven't been listening to the @MathTeacherLounge podcast then you've been missing out. The good news is that with podcasts you can always get caught up. The bad news is that they just published their last episode. Sad to see its on the way out but was happy that @DDMeyer and @LockhartEDU were able to give us 3 seasons. They were a great team.
Curriculum Tags: All
https://amplify.com/math-teacher-lounge/






Resource Links

This is a great exercise for you to do with your teacher friends. There are some great ideas in the comments
Curriculum Tags: All
https://twitter.com/ddmeyer/status/1760441537279004679

Okay - this right here is wrong. Teachers, you have one tweet's worth of feedback to write to the student. What are you going to say? #iteachmath pic.twitter.com/GrEwtyMrAI

— Dan Meyer (@ddmeyer) February 21, 2024

Video Links

You have to have a bit of a thick skin but everyone should take part in this #ObserveMe activity. We cannot teach in a bubble and the only way we will ever be able to get better is with feedback. And we don't get feedback if we are the only ones in our classes as we teach
Curriculum Tags: All
https://twitter.com/robertkaplinsky/status/1759625061231743033

Here's my IGNITE! talk on why people should join the #ObserveMe movement. Watch or download the full video here: https://t.co/tRt6aPxQ4Y #MTBoS pic.twitter.com/fCyGtaPGjR

— Robert Kaplinsky (@robertkaplinsky) February 19, 2024

So I knew that Geogebra could be used for 3D graphing but I didn't know that Graspable math was connected to Geogebra so that you could do some on the fly dynamic stuff. Nicely done.
Curriculum Tags: MCV4U
https://activities.graspablemath.com/whiteboards/_76282fd5865cf0dd

Making sense of the equation of a plane https://t.co/aIb8iCfR95 @GraspableMath @geogebra #MTBoS #ITeachMath pic.twitter.com/TQWjm5vBOv

— Tim Brzezinski (@TimBrzezinski) February 22, 2024

Despite the fact that @AnnieK_P doesn't like to be on Twitter, I am glad when she does post these awesome Islamic art pieces
Curriculum Tags: All
https://twitter.com/anniek_p/status/1760876971691479348

I am working hard to carve our time for myself to read, and do geometric art again. This site is a hellscape, and I do not want to give it more of me, but I will keep posting these photos over on the photo app. @/anniekperkins pic.twitter.com/0CLPC5aXks

— Annie Perkins (@anniek_p) February 23, 2024

Who knew that there was an algorithm associated with fonts?

Curriculum Tags: MCR3U, MHF4U
https://twitter.com/davidpetro314/status/1760265003800629698

Where do you see #math here?#MathChat #MTBoS #iTeachMath https://t.co/4cYvtLV6Ka

— David Petro (@davidpetro314) February 21, 2024

I love that this can be made with dynamic geometry
Curriculum Tags: All
https://twitter.com/SumDumThum/status/1759431277013336300

Order-8 triangular kaleidoscope https://t.co/uKpaAZ89s3

based on @Pixelated_Donut's iterated inversion trickhttps://t.co/P1cvgMr6Rt pic.twitter.com/EuneBLO1eA

— Andrew Osborne (@SumDumThum) February 19, 2024

Here is the last of 5 small tweaks you can bring to your classrooms to help students learn
Curriculum Tags: All
https://twitter.com/howie_hua/status/1759237990860333404

Small changes, big impacts in the classroom part 5: This is one of the first things I think about when I create a lesson pic.twitter.com/BCIc9nIMIQ

— Howie Hua (@howie_hua) February 18, 2024

I think we could run real versions of this in our math classrooms as starters and maybe extend to other fractions.
Curriculum Tags:All
https://twitter.com/bobloch/status/1759205341890261381

Hey math folks, what can we do with this? https://t.co/rVnKfzxuCl

— Bob Lochel (@bobloch) February 18, 2024

Image Links

This might be a good system of equations question
Curriculum Tags: MPM2D, MFM2P
https://twitter.com/Rainmaker1973/status/1760316972330299429

How tall is the table? pic.twitter.com/9A2wVF2Dv6

— Massimo (@Rainmaker1973) February 21, 2024

I think this puzzle could be done by just about any grade level, however, why it works might be a bit trickier
Curriculum Tags: All
https://twitter.com/EarlyFamilyMath/status/1759729582104776806

This is a great puzzle to get your students thinking and talking math!
In collab with Math for Love#earlymath #tmwyk #mtbos #mathschat #iteachmath #mathgames #mathstrategy #mathematics #homeschooling #momlife #parenting #playathome pic.twitter.com/oo26FAvXkd

— EarlyFamilyMath (@EarlyFamilyMath) February 20, 2024

    

Math Links for Week Ending Feb 16th, 2024

Featured Links

@Howie_Hua manages to put out a lot of content (on top of his actual job of teaching preservice teachers) but I really like the recent few that he's put out about small changes you can make that can affect big changes. Here's the 4th one (you can search his feed for the others).
Curriculum Tags: All
https://twitter.com/howie_hua/status/1751318526252704027

Small changes, big impacts in the classroom part 4: I try to avoid using this one word when providing feedback pic.twitter.com/IglWxdpyd5

— Howie Hua (@howie_hua) January 27, 2024

Resource Links

Valentines is over but you might want to put this in your back pocket for next year. You could use it for any grade that requires plugging values into formulas but you can also use it in data mangement when talking about normal distributions. 
Curriculum Tags: All
https://tomrocksmaths.com/2024/02/13/formula-for-the-perfect-proposal/

Ahead of Valentine's Day, here's a little piece of maths I've put together to help you plan the perfect romantic evening. It's framed as the perfect proposal formula, but there's a lot that can be applied when planning a home-cooked meal with your S.O. ...https://t.co/DFLd0FTGHz

— Dr Tom Crawford (@tomrocksmaths) February 13, 2024

Video Links

A few videos conceptualizing dividing fractions
Curriculum Tags: Gr7, Gr8, MTH1W
https://twitter.com/howie_hua/status/1756327269709365254

When would you ever divide by a fraction?? pic.twitter.com/C4D83mpXr1

— Howie Hua (@howie_hua) February 10, 2024

https://twitter.com/howie_hua/status/1757560909244097021

If we write fraction division like this, people may see why "keep change flip" works pic.twitter.com/MHX3tuMrkj

— Howie Hua (@howie_hua) February 14, 2024

https://twitter.com/howie_hua/status/1757560909244097021

If we write fraction division like this, people may see why "keep change flip" works pic.twitter.com/MHX3tuMrkj

— Howie Hua (@howie_hua) February 14, 2024

Some more fun with Equilateral Triangles
Curriculum Tags: MTH1W
https://twitter.com/TimBrzezinski/status/1757018814271615442 

Equilateral triangles wonder. Source: @davidpetro314 https://t.co/HCMgecPs2N @geogebra #MTBoS #ITeachMath pic.twitter.com/ZwA0OQ6WIu

— Tim Brzezinski (@TimBrzezinski) February 12, 2024

Well, it's the last episode of the season for us and we asked each of our guests "How do you define mathematical fluency?" and this is what they said:
Curriculum Tags: All
https://twitter.com/OAMEtalks/status/1757926285068709975

Image Links

How would you have your students prove this is true?
Curriculum Tags: MTH1W
https://twitter.com/pickover/status/1758492262088974491

Mathematics and mystery.

Shiver in ecstasy. The circle that fits precisely inside a 3-4-5 Pythagorean triangle has an area of π. OMG. pic.twitter.com/78OS8aixNW

— Cliff Pickover (@pickover) February 16, 2024

    

Math Links for Week Ending Feb 9, 2024

Featured Links

It's not often I see some property I haven't seen before but given the amount of stuff that @TimBrzezinski puts out, it's not suprising that he shows me something new. 
Curriculum Tags: MTH1W
https://twitter.com/TimBrzezinski/status/1755201259408118041

⭕️ & equilateral triangle phenomenon https://t.co/Dj6ANYbo7M @geogebra @gogeometry #MTBoS #ITeachMath pic.twitter.com/I3ph3aiKwo

— Tim Brzezinski (@TimBrzezinski) February 7, 2024

Resource Links

Who doesn't need to learn about transcendental numbers
Curriculum Tags: MHF4U
https://karendcampe.wordpress.com/2024/02/07/exploring-e/

Happy e day! (2.7)

New blog post: "Exploring e" with some ideas for learning about the Euler number in math class. #MTBoS #iTeachMath #T3Learns #calculushttps://t.co/FGjtGezqrd

— Karen Campe (@KarenCampe) February 7, 2024

Where do you need math in everyday life?
Curriculum Tags: All
https://twitter.com/MathigonOrg/status/1754520352208679407

Mathematics has applications across so many parts of everyday life - from weather prediction to bridge design, crowd control to music shuffling, and fraud detection, to name a few. Explore many more interesting examples at https://t.co/R1xGBJ8WPN pic.twitter.com/Mjc7hiyfuB

— Mathigon (@MathigonOrg) February 5, 2024

Do you need to find a prime number? How about this method?
Curriculum Tags: All
https://twitter.com/MathigonOrg/status/1754882734411948267

The Sieve of Eratosthenes is a simple method for finding prime numbers: you highlight the next available number and then cross out all of its multiples. How many primes are there less than 100? Try for yourself at https://t.co/Mr65qdpphj pic.twitter.com/qi4UDzE5zq

— Mathigon (@MathigonOrg) February 6, 2024

Video Links

Have you ever thought of what you could do if you could break an algebra tile?
Curriculum Tags: MPM2D, MFM2P
https://twitter.com/TimBrzezinski/status/1754120652020212228

Completing the square in Polypad : Even when the B coefficient is ODD @MathigonOrg @desmosclassroom @Amplify #MTBoS #ITeachMath pic.twitter.com/q48uAooh0H

— Tim Brzezinski (@TimBrzezinski) February 4, 2024

You might have seen the rectangle version of this but how about the triangle version?
Curriculum Tags: Gr8

https://twitter.com/TimBrzezinski/status/1754258083369341387

Pushing the boundaries with circles in @MathigonOrg #Polypad: https://t.co/TCowI1LLz7 @desmosclassroom @Amplify #MTBoS #ITeachMath pic.twitter.com/XVaw0yFY0Y

— Tim Brzezinski (@TimBrzezinski) February 4, 2024

Students often struggle with combinatorics, so it is always good when something can be explained clearly
Curriculum Tags: MDM4U
https://twitter.com/howie_hua/status/1755744864757862570

Have you ever wondered what's happening in the permutation and combination formulas? Here's how we can think about them: pic.twitter.com/LzQklkmSle

— Howie Hua (@howie_hua) February 9, 2024

This is the third #OAME2024 preview episode
Curriculum Tags: All
https://twitter.com/OAMEtalks/status/1754636573402947603

Image Links

I am always looking at what parts of docudramas are true.  This is a neat data visualization to represent that
Curriculum Tags: MDM4U
https://twitter.com/infobeautiful/status/1753462035491274798

Great films fact-checked and visualised scene by scene. Is there really such a thing as a "true" true story in Hollywood?

Explore: https://t.co/pBn4cnSGWG pic.twitter.com/ME10rkZ4h8

— Information is Beautiful (@infobeautiful) February 2, 2024

What a great data visualization

Curriculum Tags: All
https://twitter.com/jennalaib/status/1754561880985686066

Love this, from @ferdiocom https://t.co/9VR6DmgiGd pic.twitter.com/0aj2JqoLKQ

— Jenna Laib (@jennalaib) February 5, 2024

Math Links for Week Ending Feb 2, 2024

Featured Links

One great resource to help find resources for Black History month is the Mathigon interactive timeline of mathematics. 
Curriculum Tags: All
https://mathigon.org/timeline

February is Black History Month. Elbert Cox was the first African-American to earn a PhD in mathematics. Cox taught at Howard University. Part of his studies included polynomial solutions to differential equations.Learn more here: https://t.co/OJsyEO3vJe

— Mathigon (@MathigonOrg) February 1, 2024

Resource Links

Here is a nice mix of physical and virtual manipulatives to explore parabolas
Curriculum Tags: MPM2D, MFM2P, MCR3U, MBF3C, MCF3M
https://www.mathhappens.org/curve-stitching-parabolas/

"Look! It's a parabola!"

"Is it though?"

How can we check?

New math fun on the @MathHappensOrg blog.https://t.co/VcQkLpKj7D

— Christopher Danielson (@Trianglemancsd) February 1, 2024

Did any of your students enter?
Curriculum Tags: All
https://www.desmos.com/art 

We are so excited to announce the winners of the 2023 Desmos Global Art Contest! Have you found your favorite yet? Explore the full gallery at https://t.co/S9HA6e9QWX pic.twitter.com/SXCMxc7zGU

— Desmos (@Desmos) February 2, 2024

Video Links

Any time that you can help your students understand why an algorithm works, then that's a good time.
Curriculum Tags: All
https://twitter.com/howie_hua/status/1752858797415219686

The long division algorithm CAN be understandable rather than just a procedure to memorize. Here's how we can think about it: pic.twitter.com/m3R69NDheo

— Howie Hua (@howie_hua) February 1, 2024

Again, it's always good to know why things happen and not just follow a trick, rule or algorithm
Curriculum Tags: Gr8, MTH1W
https://twitter.com/howie_hua/status/1752483310113280241

Why do we flip the inequality sign when we multiply/divide by -1? pic.twitter.com/MQ9lRAkfDn

— Howie Hua (@howie_hua) January 31, 2024

The OAME annual conference is coming up and I've done a couple of preview podcast episodes that focus on the featured speakers. Listen here:
Curriculum Tags: All

https://talks.oame.on.ca/season-6

Image Links

Having done this myself before I know that it can be hard to get them just right. Now you have a good set you can use right here
Curriculum Tags: Gr7, Gr8, MTH1W
https://twitter.com/DavidKButlerUoA/status/1752747077527044294

Rather proud of making this drawing showing volume for cylinders (including prisms). pic.twitter.com/xPkqFYbOGa

— David Butler (@DavidKButlerUoA) January 31, 2024

Sometimes you just gotta make it relevant for the kids
Curriculum Tags: MTH1W, MFM2P
https://twitter.com/MrValencia24/status/1749148372831748269

Exploring the Distributive Property of Multiplication with Mariana via #MathPlay🧮👨‍👧✖️#CodeBreaker #MTBoS #ITeachMath #MathIsFun #ElemMathChat #STEM #Math #Maths #EdChat #StarWars pic.twitter.com/8XnynjrebI

— Libo Valencia 🧮 MathPlay (@MrValencia24) January 21, 2024