Math Links for Week Ending Oct. 26th, 2018

Earlier this year I posted about @Desmos releasing some Two Truths and a Lie activities, Now they have released four more. These are very simple activities in that they each have one slide with a sample 2T&L and then the second slide is a Challenge Creator activity designed to look like the first slide. A challenge creator is when students are given constraints to create their own problem (in this case 2T&L) and once done, that activity will then automatically be shared with the rest of the class. So in the end your students have a student created activity to practice that particular skill. In this case they have released one for conics, lines, parabolas and exponents. You can see all of their other challenge creator activities here.
Curriculum Tags: All
https://teacher.desmos.com/search?q=two+truths
http://blog.desmos.com/post/179220878917/friday-fave-for-october-19

I have been tinkering with creating an activity for dilations but then came upon this one from @finding_EMU that does a great job of introducing and investigating the idea.
Curriculum Tags: Gr7
https://teacher.desmos.com/activitybuilder/custom/5bc94477122fd04342f8b15d

Some walnut crushing linear relations here. Follow the link for the data set of time and number of crushed walnuts. The guy is pretty good at being consistent with his walnut crushing. Check out the data and analyze the files at the link below.
Curriculum Tags: MPM1D, MFM1P, MDM4U, MAP4C

http://found-data.blogspot.com/2018/10/walnut-crushing-world-record.html

A big lottery this week and here's some good advice.
Curriculum Tags: All
https://twitter.com/ddmeyer/status/1054554545840242689

Checks out. #iteachmath pic.twitter.com/Wy23C1iTc4

— Dan Meyer (@ddmeyer) October 23, 2018

And more lottery humour
Curriculum Tags: All
https://twitter.com/DonFraser9/status/1055921047772360704

What are the Chances? New Yorker Oct 29/18#MTBoS ⁦@mraspinall⁩ ⁦@davidpetro314⁩ ⁦@MrAllenEdu⁩ ⁦⁩ ⁦@CathyMarksKrpan⁩ ⁦@MathletePearce⁩ ⁦@Mathgarden⁩ ⁦@MatthewOldridge⁩ ⁦@paul_math⁩ ⁦@MrSoclassroom⁩ ⁦@MrOrr_geek⁩ pic.twitter.com/dUey6fmmSV

— Don Fraser (@DonFraser9) October 26, 2018

Math Links for Week Ending Oct. 19th, 2018

Even though on this blog I feature math links related to grade 6-12 math, I don't mind pointing out good stuff that comes out of the Ontario Math community, even when it isn't in that realm. So this week @AliceAspinall published a children's book promoting mathematics. Everyone Can Learn Math is out now and is the story of Amy's struggle to get a math assignment done. Spoiler alert: she finds that struggle and hard work are all part of being successful in anything, including math.
Curriculum Tags: All
https://books.friesenpress.com/store/title/119734000072585896/Alice-Aspinall-Everyone-Can-Learn-Math

NOW AVAILABLE! Everyone Can Learn Math is now available for ordering online at https://t.co/n91EZZABJU It will be available on other online stores and Amazon in a couple weeks. #mtbos #iteachmath #mathmindset #growthmindset #childrensauthor #childrensbook

— Everyone Can Learn Math (@EveryoneCanMath) October 16, 2018

I have mentioned Delta Math before but they just released 18 new geometric construction activities so if you haven't already got your kids to try Delta Math for practice, this might be the thing that will get you there.
Curriculum Tags: All
https://www.deltamath.com/

Try DeltaMath's 18 new modules on constructions and share them with the geometry teachers at your school.

Copy and angle: https://t.co/aWIugSbUhp

Construct a square: https://t.co/WJrJXPGoD4

They are automatically graded and teachers can replay student's steps one at a time. pic.twitter.com/KCDBPNmTAL

— Zach Korzyk (@MrDeltaMath) October 18, 2018

Wired Math is a site curated by the University of Waterloo to give enrichment activities for grades 7-10. There are challenges, interactive games and more. A good resource to remind us that sometimes as we try to help the struggling learners, we forget about those who aren't struggling. Thanks to @Robin_Grondin for pointing this one out.
Curriculum Tags: All
http://wiredmath.ca

Some fun stuff here to have students practice computation and order of operations giving answers like palindromic numbers. A fun way to practice computation. Make sure you click on the link to get to the actual paper with all the examples (from the simple to the complex).
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P, MPM2D, MCR3U, MCF3M
https://twitter.com/pickover/status/598953794878218241

For any value of letter a from 1 to 9, the result is always the same. Source: http://t.co/57Czog8ELe pic.twitter.com/tFjsI1O8Gt

— Cliff Pickover (@pickover) May 14, 2015

I have mentioned before that the NY Times publishes a graph a week where they ask what you Notice and Wonder. In this post, @AliceKeeler provides a structure for students to use a Google Sheet to help document their notice and wonderings.
Curriculum Tags: Gr7, Gr8, MBF3C, MDM4U, MAP4C
https://alicekeeler.com/2018/10/10/create-notice-google-sheets/






I saw this Tweet from @DavidButlerUoA on creating patterns with hexagons sized by the Golden ratio and created this Google Drawing so that you could create your own.
Curriculum Tags: Gr7
https://docs.google.com/drawings/d/1WTTswRlwSKvxmtRFo3DveMKfSvVn7QY9EY9LPYrxanE/copy

Is this Google Drawing of any use in this context? I didn't make them too precisely (I could if it seems useful). You need a Gmail account to use it https://t.co/nOyVhLSuat pic.twitter.com/aEgXXzlW5G

— David Petro (@davidpetro314) October 16, 2018

A great quick video connection between the number line and ratio tables from @mathletepearce
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P
https://twitter.com/MathletePearce/status/1052213054841196544

It's a double number line...

No. Wait. It's a ratio table!

No. Wait. IT'S BOTH!

Digging into content knowledge through the 5 mathematical proficiencies here at #GECDSBProud!#MTBoS @gecdsbpro #iteachmath @ONeducation pic.twitter.com/oNZwvZU1Bt

— Kyle Pearce (@MathletePearce) October 16, 2018

This is not a new concept but the video that @AlexOverwijk posts about falling dominos is followed up with some great shots of student work in the comments to get a sense of the #ThinkingClassroom. Perfect for dealing with exponential functions
Curriculum Tags: MCR3U, MHF4U
https://twitter.com/AlexOverwijk/status/1052339204296925184

A domino will knock over another domino that is 1.5 times bigger in all dimensions. We went out in the hall and demonstrated regular dominos being knocked over. #thinkingclassroom #MTBoS #iteachmath 1/n

— Alex Overwijk (@AlexOverwijk) October 16, 2018

A very "mathie" I love math poster
Curriculum Tags: All
https://twitter.com/divbyzero/status/1053263753070952448

I made this fun graphic: I ♥ Math. It is now in the latest issue of the British magazine @chalkdustmag (the version appearing there has the British "maths"). https://t.co/gjhVMP22HT pic.twitter.com/GsCw1NVsSf

— Dave Richeson (@divbyzero) October 19, 2018

Math Links for Week Ending Oct. 12th, 2018

At our board, we have been doing a lot of work on getting kids to talk more and re framing teacher questioning. That's why this Tweet from @MrsSasser offers a nice tweak to how you ask your students if they have any questions. You can hear about how this Tweet got over 14 million views on the 10 Minute Teacher podcast from @coolcatteacher. Listen at the link below and check out a lot more math based podcasts at the tab above.
Curriculum Tags: All
http://www.coolcatteacher.com/14-million-people-read-classroom-tweet-1-question-asks-students/

Two years ago, I was saying “do you have any questions?”. Last year I switched to “what questions do you have?” It made a difference. Today I tried “ask me two questions”. And they did! And those ?s led to more ?s. It amazes me that the littlest things have such a big impact!

— Andre Sasser (@MrsSasser) August 27, 2018

A new take on a classic problem from @MrOrr_Geek. Using similar triangles he provides a way for students to become curious about the result and can test that result out physically with a mirror.
Curriculum Tags: MPM2D, MFM2P
https://mrorr-isageek.com/eye-to-eye/



If you are looking for a connection to real life for when you teach combination of functions, then you might want to check out this episode of the podcast The Sum of All Parts about how they figured out what chord was used at the beginning of The Beatles' A Hard Days Night. Spoiler alert, they used Fourier Transforms (combining functions on steroids). And while you are there check out the other episodes from this podcast which is all about numbers. An for more math related podcasts, click on the the tab above.
Curriculum Tags: MHF4U
http://www.abc.net.au/radionational/programs/sum-of-all-parts/6.0-magical-mystery-chord/9088624

This is a neat site from @MrBartonMaths called Maths Venns. The idea is that students are given a prompt and some criteria to fill in on a Venn Diagram. There are topics from number sense to functions to data management. You could probably find something for just about any grade level. I could see using this as a prompt on a VNPS. Take a look.
Curriculum Tags: All
https://mathsvenns.com/

A new video to visuals calculating the mean from Math is Visual. Check out all the info at the link below.
Curriculum Tags: Gr7
http://mathisvisual.com/mean/

A logic puzzle from @DonFraser9 connected to the NFL
Curriculum Tags: All
https://twitter.com/DonFraser9/status/1049363131007295488

#MTBoS ⁦@mashupmath⁩ ⁩⁦@robertkaplinsky⁩ ⁦@Mathgarden⁩ ⁦@davidpetro314⁩ ⁦@ddmeyer⁩ ⁦@paul_math⁩ ⁦@MrOrr_geek⁩ ⁦@mr_stadel⁩ ⁦⁩⁦@mraspinall⁩ ⁦⁩ ⁦@MatthewOldridge⁩ ⁦@joboaler⁩ ⁦@TracyZager⁩ pic.twitter.com/DyqEEnWP5W

— Don Fraser (@DonFraser9) October 8, 2018

Math Links for Week Ending Oct 5th, 2018

Hey kids Global Math Week is happening starting Wednesday (10/10/18). So many ways you can participate. But at the very least, head on over to www.explodingdots.org and get your kids to sign up to do some exploding dot problems. And if you get this soon enough you can see @JoBoalar's live talk on Joyous Math Facts at 1:25 PM PST on Oct 6th to kick of the Global Math Symposium or just watch the promo video from @JamesTanton to get the gist.
Curriculum Tags: All
https://www.globalmathproject.org/

 

A new 3Act Task from @mathletepearce with a layout that would let you do this in classes from k-9 (depending on the extensions you might use (volume, proportional reasoning etc).
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P
https://tapintoteenminds.com/3act-math/girl-guide-cookies/

In this latest post from @mathgarden I love that he references one of my favourite courses that I have ever taught. It was a grade 12 course that we had in Ontario called Geometry and Discrete math. I used to call it the "proof" course. It was meant for students going to university and taking things like engineering, physics and math. However, many kids didn't like it because it was hard and it was eventually dropped as a requirement by universities (even though they asked for it to be created). None the less, that is the topic here, that math kids need to experience struggle. The trick is finding the perfect amount for each student.
Curriculum Tags: All
https://medium.com/@sunilsingh_42118/the-road-to-learning-mathematics-goes-through-struggle-not-efficiency-861ddd11bed2

And more info on struggle, that is, the connection between struggle and high achievement from @JoBoaler and the YouCubed crew: " The people that achieved the most, were always pushing at the edge of their understanding"
Curriculum Tags: All
https://www.youcubed.org/resources/the-importance-of-struggle/

After quite a hiatus, the @WSHSmath department has released a new video. And although we no longer include integration in our Ontario Calculus course, this is still pretty good.
Curriculum Tags: MCV4U
https://www.youtube.com/watch?v=cgPGwFhVUm8

Even though it doesn't have to come from @NeilTyson, most of us teachers know this to be true. It's not the stuff that's important but the act of learning that is.
Curriculum Tags: All
https://www.youtube.com/watch?v=utedyJ7QRBs

Honestly, being better at understanding statistics would be better for us all. Here @theboysmithy gives us a nice TEDx talk on why. Thanks to @KMarkPet for this one.
Curriculum Tags: All
https://www.ted.com/talks/alan_smith_why_we_re_so_bad_at_statistics

If you or your students are rocking an iPhone, then you might want to upgrade to iOS 12 so that you can use the new Augmented Reality Measurement app
Curriculum Tags: All
https://twitter.com/davidpetro314/status/1047277863177601030

I’m playing with the new #iphone Measure app that uses #AugmentedReality It’s not bad and I can see someone doing a math lesson on how accurate it is #mathchat #mtbos #iteachmath pic.twitter.com/1UhVql96FU

— David Petro (@davidpetro314) October 3, 2018

I nice reminder from @MarkChubb3 (via @TraceyZager) of the great definition of procedural fluency from the @NCTM
Curriculum Tags: All
https://twitter.com/MarkChubb3/status/1046940496864710656

I love @NCTM 's definition of "Fluency" (thanks to @TracyZager for highlighting the verbs for us!)

Take a minute to read the whole thing:#mathconceptions pic.twitter.com/72YV6plfwu

— Mark Chubb (@MarkChubb3) October 2, 2018