Math Links for Week Ending Oct 28th, 2022

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I have been an advocate of Tarsia puzzles for years. They are an awesome self checking activity that incorporates a fun way to do practice. My biggest complaint was that the software to create them was Windows based only. But thanks to @JustinAion I see that there is an online version that you can use to create your own. That being said, you can get the more powerful version of the software here and then go to @MrBartonMaths page here to get literal tonnes of premade ones. And the few that I have made are here. 
Curriculum Tags: All
https://www.tarsiamaker.co.uk/

Day #17: Inequalities Card Sort (Day 2) & Inequalities Puzzle (algebra) #teach180 #msmathchat pic.twitter.com/oHQB2heiu4

— Ron King (@mthman) September 28, 2017

Resource Links 

What a fun little two person puzzle your students can play. Can they determine an optimal strategy
Curriculum Tags: All
https://twitter.com/sergeballif/status/1583835999918260224

I made a @Desmos activity that we'll be using in our Pi-rate Math Club for Science Mom patrons. I called the game Side-to-Side, but I'd love to know if it has another name. I don't remember when I first saw it. https://t.co/opqNWpeItS pic.twitter.com/fDlG73vSWW

— Serge Ballif (@sergeballif) October 22, 2022

Video Links 

This method may be algorithmic but I have always loved it. And way back when I started teaching, it really introduced me to the weirdness of the fact that 0.9999.... is equal to 1. 
Curriculum Tags: MTH1W
https://twitter.com/howie_hua/status/1586158925782867968

New TikTok video: How do we convert a repeating decimal into a fraction? pic.twitter.com/ng5VRa6MHI

— Howie Hua (@howie_hua) October 29, 2022

Image Links 

Some circle theorem problems for you 
Curriculum Tags: MTH1W
https://twitter.com/draustinmaths/status/1585217325317644289

Final batch of circle theorems resources. Hopefully something for everyone, including two activities to introduce some of the circle theorems through isosceles triangles, another mixed practice grid and, for the IGCSE folk, intersecting chord and secant theorems practice. Enjoy! pic.twitter.com/w6TmpK4zQY

— Amanda Austin (@draustinmaths) October 26, 2022

It really is cool that this is true. Good old 52!
Curriculum Tags: MDM4U
https://twitter.com/MathsEdIdeas/status/1585046833381793792

More than

99.99999999999999999999999999999999999999999999999022%

of the possible arrangements of a shuffled deck of playing cards have yet to be seen. pic.twitter.com/kSgzts5VFk

— Maths Ed (@MathsEdIdeas) October 25, 2022

Math Links for Week Ending Oct 21st, 2022

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I keep forgetting that there is more to @MathigonOrg than just Polypad. Here are two examples of other things that students can benefit from. 
Curriculum Tags: All
https://mathigon.org/factris
https://mathigon.org/multiply

Factris is a game that teaches about simple arithmetic, divisibility, factors and prime numbers – and it is incredibly fun. For maximum points, try to clear as many rows as possible at once. What is your high score?

Play at https://t.co/Cxux1vDo0f pic.twitter.com/UjVabkdN16

— Mathigon (@MathigonOrg) October 20, 2022

Multiplication by Heart is a wonderful way for students to learn multiplication facts. Made in partnership with @MathforLove, our program uses spaced repetition, has helpful visuals, and provides detailed teacher analytics. Explore for yourself at https://t.co/YDzrvz5FTc pic.twitter.com/587IXrdWYT

— Mathigon (@MathigonOrg) October 19, 2022

Resource Links 

I always appreciate @MathsJem's resource posts. It's always good to get resources from the other side of the pond. 
Curriculum Tags: All
https://www.resourceaholic.com/2022/10/5-maths-gems-163.html

New! My 163rd gems post. 💎

Ideas, updates and resources for maths teachers.https://t.co/xF0Crufkwa

Includes a link to my #mathsconf30 slides.

Hat tips to follow!#mathsgems #mathschat #teammaths pic.twitter.com/ko1Ynp7ipo

— Jo Morgan (@mathsjem) October 16, 2022

Video Links 

I like to have examples of math used in the real world. In this case, even though this is a longish video, they show some practical uses of percent, ratio, average and even statistics to figure out that they potentially could be losing tonnes of money. 
Curriculum Tags: Gr7, Gr8, MTH1W
https://www.youtube.com/watch?v=V6iTHD_xnoI

It's important not to just give students rules to follow. In these two videos, @Howie_Hua gives us some other strategies when dealing with integer operations. 
Curriculum Tags: Gr7, Gr8
https://twitter.com/howie_hua/status/1573098362471153667
https://twitter.com/howie_hua/status/1583244682246516736

New TikTok video: Why does a negative times a negative equal a positive? pic.twitter.com/tzApWv7G8P

— Howie Hua (@howie_hua) September 22, 2022

New TikTok video: We don't need to rely on "two negatives make a positive" when subtracting pic.twitter.com/G8qfdp9O2p

— Howie Hua (@howie_hua) October 20, 2022

Image Links 

Though not math related, I think that knowing how your students are feeling is super important for making sure they are ready to learn. These prompts would go along well with some of these @Desmos starter screens. 
Curriculum Tags: All
https://twitter.com/Principal_H/status/1583455641053470720

Questions you can ask instead of "how are you?"#teacher #leader #sped #autism #cte #specialeducation #teachertwitter pic.twitter.com/5hl39vNVpc

— 𝐂𝐡𝐫𝐢𝐬𝐭𝐨𝐩𝐡𝐞𝐫 𝐇𝐚𝐫𝐫𝐢𝐬 🎸🏴‍☠️🧩🤖 (@Principal_H) October 21, 2022

Math Links for Week Ending Oct 14th, 2022

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Though this isn't necessarily a math link, I think it's important for all teachers and administrators to see. If you've followed this blog then you have probably seen me post links many times from @RobertKaplinski. This time it's a bit different. Follow this link to watch the full video of his #NCTMLA22 talk to get some insights about foster students that you may have in your classes. In fact, you may have them in your classes right now and not even know it. Regardless, understanding some of the struggles they may have is the first step into helping them succeed. Do not miss this.
Curriculum Tags: All
https://robertkaplinsky.com/5-struggles-your-foster-students-wished-you-knew/

Whether you've known or not, you've probably had a foster child in your class. Regardless, watch this recording of a powerful #NCTMLA22 session from @robertkaplinsky & @ZennedMath on 5 struggles those students have:https://t.co/MfuoRYgZBT#MathChat #MTBoS #iTeachMath pic.twitter.com/HpY9dTFyhz

— David Petro (@davidpetro314) October 9, 2022

Resource Links

Even if you are not interested in the grade level he's working on here, the concepts @JRappaport27 is working on to support the thinking classroom should give you all some ideas to expand out to in your own classes. 
Curriculum Tags: All
https://twitter.com/JRappaport27/status/1579897357021642752

Working on a sequence of Check Your Understanding (gr. 4-6) questions by bridging the research of @pgliljedahl, @pamseda1 and @kyndallab. Welcoming feedback. #mtbos @KirstDy @NatBanting @davidpetro314 @BurdessAlicia @DanShuster (who clued me into many of these tasks) pic.twitter.com/idYRjqCdLG

— Jordan Rappaport (@JRappaport27) October 11, 2022

If you've familiar with @PJLiljadah's workshops or book then you are familiar with the Tax Collector problem (especially as one that is good to introduce the logistics of VNPSs). Here is more work that @JRappaport27 has done to tease out the thinking on that problem. 

Curriculum Tags: All
https://twitter.com/JRappaport27/status/1580963198819217420

First in the larger sequence is the Tax Collector. But we might build a Number String first. Our goal for consolidation is a collaborative approach to sense-making. Students then have time for reflection while explaining their understanding of the math. #mtbos @KirstDy https://t.co/fOiuNhl4Us pic.twitter.com/mOO8unGDxI

— Jordan Rappaport (@JRappaport27) October 14, 2022

What a cool use of Microbits. 
Curriculum Tags: MCR3U, MHF4U
https://twitter.com/MrHillEdu/status/1579647813797171201

In maths enrichment we worked with @microbit_edu and @Desmos to graph out how quickly the temp of Pizza drops, then we used Google Maps and scale drawings to map out the distance we could cover to deliver 🍕 without complaints! #mathsbtc pic.twitter.com/lQ8tlm0rLW

— Dominic Hill (@MrHillEdu) October 11, 2022

I love when teachers find websites that could be used to collect data in an interesting way. It would be cool to have students submit images (maybe even of themselves) to discuss the implications of what is considered "beautiful"
Curriculum Tags: MTH1W
https://pinkmirror.com/blog/photo-retouch-face-attractiveness-score/

So I went down the "facial golden ratio" rabbit hole and found a site which will assess your proportional beauty if you upload a photo: https://t.co/CkP0QnwKUu
Feel like there is a data collection activity to be had here. 2/2 pic.twitter.com/T6de6B92Fb

— Bob Lochel (@bobloch) October 11, 2022

Opinion Links

If we can do a better job of connecting play with mathematics, then we could make huge strides in helping show students that they can do math. In this post @a_mcsquared, gives us some reasons to focus on play and some ways to get there. I love @sergeballif's Golf game. 
Curriculum Tags: All
https://blogs.learnquebec.ca/2022/10/playing-in-math-using-desmos/

Video Links

This seems like a fun way to find the GCF
Curriculum Tags: Gr7, Gr8, MTH1W
https://twitter.com/howie_hua/status/1578526824866271234

New TikTok video: I wish I was taught this way of finding the GCF when I was in school pic.twitter.com/A5LWvhHCbJ

— Howie Hua (@howie_hua) October 7, 2022

Image Links

Some fun calculations with properties of circles
Curriculum Tags: MTH1W
https://twitter.com/dment37/status/1580094933624836096

Blue area? @geogebra #geogebra pic.twitter.com/rYW4SaCzyU

— Daniel Mentrard (@dment37) October 12, 2022

    

Math Links for Week Ending Oct 7th, 2022

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I really love Desmos Challenge Creator. I have ever since they first came out. The ability for students to create their own problems and then have those problems available to the rest of the class to do (like a home grown worksheet but better because your friends made the questions). Up until recently, anyone could run an activity that had a Challenge Creator in it but the average Desmos user couldn't build their own (they couldn't even make a copy of an activity with a Challenge Creator). As a Desmos Fellow, I had the ability to build my own and now everyone does. So if you are the kind of teacher that likes to build their own activities, you can now include Challenge Creators in your portfolio. And if you are interested, here is a collection of mine and others that I have collected to get you started.
Curriculum Tags: All
https://twitter.com/desmosclassroom/status/1576993586574495754

Two words: Challenge accepted 💙
Add a social & creative experience to your lesson with Challenge Creator! You can now design your own challenges for students to create, share, & discuss ideas in activities. Check out our activity or try building your own: https://t.co/x547ESZnUB pic.twitter.com/KhkCXzTuhS

— Desmos Classroom (@desmosclassroom) October 3, 2022

Resource Links

From #NCTMLA22 on Saturday I saw @SaraVDwerf and I love the fact that she always has way more slides than she can get through in an hour. 
Curriculum Tags: All 
https://drive.google.com/drive/folders/1N0RShLYNmpfaKmdlMDXcfBqF6Caqko3u

I'm never be disappointed with all the ideas that @saravdwerf has. Here's one from her #NCTMLA2022 sesh today: "What's the same? What's different?" and as an added bonus we did a "Stand and Talk". Check out all the resources:https://t.co/uOvVZlH8Xm#MathChat #MTBoS #iTeachMath pic.twitter.com/YFqYJPKpjW

— David Petro (@davidpetro314) October 1, 2022

From #NCTMLA22 on Saturday I saw @DavidPoras live in person demonstrating just a fraction of the things you can do with Polypad. Here's a slice
Curriculum Tags: All
https://mathigon.notion.site/NCTM-2022-Los-Angeles-California-8f95cfaac82440778e16413335ef5e35

Even though he shares regularly here on Twitter, it was great to see @davidporas play with #polypad live at #NCTMLA22. Check out some of the resources:https://t.co/vDIZiQtuoi#MathChat #MTBoS #iTeachMath pic.twitter.com/YUzCyT1eXT

— David Petro (@davidpetro314) October 1, 2022

From #NCTMLA22 on Saturday I saw @BobLoch and although I met him at a Desmos Fellows weekend, his talk was all about stories dealing with probability. Great stuff.
Curriculum Tags: MDM4U
https://mathcoachblog.com/

A great session from @bobloch at #NCTMLA22 where he used stories to engage students about probability. I love the strategy of redacting the stories to build interest. His slides will eventually be up on his site https://t.co/VHZYD3WGXC#MathChat #MTBoS #iTeachMath pic.twitter.com/zmGoPCpCUF

— David Petro (@davidpetro314) October 1, 2022

Opinion Links

Are you looking for some tips on general classroom practices then you might like this summary from @KarenCampe on what she has learned from her students
Curriculum Tags: All
https://karendcampe.wordpress.com/2022/09/09/lessons-learned/

Video Links

Apparently Oct 3rd is Mean Girls Day. So do some Calculus. Check the reply for part 2.
Curriculum Tags: MCV4U
https://twitter.com/howie_hua/status/1577037190663544833

New TikTok video: It's October 3rd which is Mean Girls Day. Let's take a look at that problem where Cady Heron famously says "The limit does not exist!" (Part 1) pic.twitter.com/R0ch53k7Y7

— Howie Hua (@howie_hua) October 3, 2022

Image Links

It's time to pull out some properties of chords to get to the root 3
Curriculum Tags: MTH1W
https://twitter.com/MagicPi2/status/1578289048229056512

pic.twitter.com/aSTEZhJ8Z3

— Idan Tal (@MagicPi2) October 7, 2022