Saturday, May 18, 2019

Math Links for Week Ending May17th, 2019

Featured Links
It was OAME 2019 this week so I will focus on things I saw there. Before we get to the stuff I saw, I encourage you to look at the back channel and all the people Tweeting about the conference. So many good things. Click on the link to see them all but below are a couple specific ones and especially look at the one by @DerekRhodenizer where he has created a shared Google Doc where anyone can add info into (got some to add, then go ahead):
Curriculum Tags: All
https://twitter.com/hashtag/oame2019?f=tweets&vertical=default&src=hash


Resource Links
I'll start with the four sessions that I presented. I did a session on using Twitter (and other social media) to build your personal PLN (here are all the links people shared in that one), one on using CODAP in data management and two in the Desmos mini conference: one on activities for Grade 7&8 and one on using Desmos Geometry. You can get to all of my slide decks at the link below
Curriculum Tags: All
http://bit.ly/oame-petro


The first session that I actually saw was from @NatBanting on "Creating Mathematical Possibility by Constraining Mathematical Possibility". Get the slide deck here
Curriculum Tags: All
http://natbanting.com/presentations/





I saw @HTheijsmeijer's session on using technology to move beyond traditional assessment. One thing liked was the idea of replacing the word "effectiveness" with more specific words in the standard rubrics. There is other good stuff too, Check out her slideshow.
Curriculum Tags: All
http://bit.ly/CaptureOAME

I also saw @MSBJacobs and Natalie Reid talking about minding the gaps in student thinking with some great diagnostic tasks that you could really use for any grade. I especially love both the simplicity and effectiveness of the place value ones.
Curriculum Tags: All
https://drive.google.com/file/d/1Mifh3bBfDFIALmO5pcVvKRaHP5_LeI8L/view

I saw one of @TracyZager's session on Going Beyond Group Work and you can see some images below but one other thing I learned is that there are a pile of resources on her book "Becoming the Math Teacher you wish You'd had" on her website
Curriculum Tags: All
http://tjzager.com/



Do you know someone who isn't on Twitter but might like to Tweet? Well, they can use an account that @CarlOliwitter created. Just send an email to pushsend2020@gmail.com that has no more than 270 characters and that account will Tweet it out for you anonymously. Pro tip, remove any automatic signature on your email or that will show up in the Tweet. That was part of what he did, you can find more in his slidedeck below
Curriculum Tags: All
https://docs.google.com/presentation/d/1oBvOTkxURjy9-ssbGeGv4xnAEpkvZmBF2xsC71r0WT8/edit?usp=sharing


I did a Breakout Room for mathwith @BoychukMath and @Coachie83 . It was fun and they had a lot of resources on how to create your own in their slide deck
Curriculum Tags: All
http://bit.ly/BreakoutOAME2019

Video Links
One of the examples that @TracyZager used in her session was from a resource on Learn, Teach, Lead featuring @MatthewOldridge where he started with this prompt and then they captured (via video) all of the student thinking around the question "What's a fair price for each cup size?" And although the mathematics fits grade 7 or 8, the discussion could fit any grade. Below is just one of the videos. Click through the link below to see the whole series. Tracy used excerpts from the student clips (third link)
Curriculum Tags: Gr7, Gr8
https://thelearningexchange.ca/projects/loving-the-math-living-the-math-part-1/?pcat=1103&sess=2
https://thelearningexchange.ca/projects/loving-the-math-living-the-math-part-2/?pcat=1103&sess=0
https://thelearningexchange.ca/projects/student-clips/?pcat=1103&sess=0

BCM - The Three-part Lesson: Activating Student Thinking from The Learning Exchange (1) on Vimeo.

Image Links
@Eluberof reminds us that since non routine cognitive jobs are on the rise and routine non cognitive or manual jobs. His entire slidedeck can be found at the link
Curriculum Tags: All
http://bit.ly/Eli-OAME
A couple of slides from @MarkChubb3's session on Making Math Visual
Curriculum Tags: All


I had my #MathGals Shirt on. Get yours here
Curriculum Tags: All
https://twitter.com/stoodle/status/1129002855614959617





Friday, May 10, 2019

Math Links for Week Ending May 10th, 2019

Featured Links
Thanks to @kreiem I was introduced to Euclidea which, itself is a geometry based game but once you go to the website, you find that it's just the tip of the iceberg. You can play Pythagorea, XSection or a few other geometry and math based games. Euclidea can be played on the web or on Apple or Android products, Pythagorea on Apple or Android and the rest are only on Apple products. Fun stuff for (you or) your kids.
Curriculum Tags: All
https://www.euclidea.xyz/


Resource Links
What a great thread started by @MarkChubb3. Be sure to follow the whole discussion
Curriculum Tags: All
https://twitter.com/MarkChubb3/status/1124356066492469249

With a bunch of activities that span from grade 7-10, this collection of Desmos activities (created by @KurtSalisbury & @MrJohnRowe) that are themed around classic video games could be great for your kids. Thanks to @AlgebraDesmos for pointing this out.
Curriculum Tags: Gr7, Gr8, MPM1D, , MFM1P, MPM2D, MFM2P
https://retrodesmos.com/

Video Links
Who knew that chalk could be so awesome
Curriculum Tags: All
https://www.youtube.com/watch?v=PhNUjg9X4g8


A new one from @MathisVisual on solving two step equations. Be sure to click through to the site for all the teacher moves.
Curriculum Tags: Gr7, Gr8
http://mathisvisual.com/two-step-equations/

Image Links
Here is a great primer for deciding what type of graph to use for your data
Curriculum Tags: MDM4U
https://twitter.com/nstamboglis/status/1123910851193450499


Friday, May 3, 2019

Math Links for Week Ending May 3rd, 2019

Featured Links
It's no secret that I'm a fan of Desmos and they have been putting out new features steadily. This latest one is the ability to include ordered lists as part of activities now. Whether you create your own activities or use theirs, it's another nice feature to help discover your students' thinking. Check out some of their activities that have that feature already at the link below.
Curriculum Tags: All
https://blog.desmos.com/articles/friday-fave-for-April-26/

Resource Links
Are you thinking about implementing the thinking classroom in your class then this article explaining the 14 key ideas may be helpful but this checklist from @HTheijsmeijer is a nice way to help you along.
Curriculum Tags: All
https://twitter.com/HTheijsmeijer/status/1122632064447070208

Some great discussion in the comments from the Tweet plus good resources in the link on this one but a surprising result. Who knew that such a little rotation would cause it to intersect the axis.
Curriculum Tags: MCR3U
https://twitter.com/jamestanton/status/1122147399646896128

It's always good to have questions to ask students to keep them thinking while you are working with them.
Curriculum Tags: All
https://twitter.com/conniehamilton/status/1123029200565305345
Opinion Links
I totally get the idea of looking back on my career and thinking that my methods were archaic. In this article @MrBartonMaths talks about his experience which is the context of his new book.
Curriculum Tags: All
https://medium.com/eedi/how-i-wish-id-taught-maths-8ec9b0578228


Article Links
The Misconceptions About Math That Are Keeping Students From Succeeding [Infographic]. Check the link for more detail and all the infographics
Curriculum Tags: All
https://www.forbes.com/sites/kevinanderton/2019/04/28/the-misconceptions-about-math-that-are-keeping-students-from-succeeding-infographic/#4df56d114dd9


Video/Audio Links
I just binge listed to this new (to me podcast) Math Before Breakfast. The premiss of @mathb4breakfast is that two elementary teachers (@math6teacher and @tracyjoproffitt) go for runs together a few mornings a week and talk about their math teaching practice. So they started to record their conversations (thankfully, not while they are actually running). I wasn't sure what to expect when I started to listen but I really love the way that they talk through pedagogical ideas in order to plan out what they are doing in their classes. They share a lot of resources (like tonnes of links per episode) and even if you may have heard of some (or all) of those resources, that peak into their teaching and planning process is really useful. Check it out and all of the other new podcast episodes listed on my podcast page.
Curriculum Tags: Gr7, Gr8
http://ontariomath.blogspot.com/p/podcasts.html

Nice animation to show the sum of exterior angles of a polygon is 360 degrees.
Curriculum Tags: MPM1D, MFM1P
https://twitter.com/robertkaplinsky/status/1122589047803797505

Image Links
Yup, there is some domain and range work that could be done here
Curriculum Tags: MCR3U
https://twitter.com/standupmaths/status/1122064058105180161

Nice Pixelation
Curriculum Tags: All
https://twitter.com/SumDumThum/status/1122215426551894018

Here's a fun question dealing with squares and triangles. Make sure you check the comments for some solutions (including my own, below).
Curriculum Tags: MPM1D, MFM1P
https://twitter.com/jamestanton/status/1122846062375399426

Here's my solution
https://twitter.com/davidpetro314/status/1123196414253621249
Connecting algebra to number sense
Curriculum Tags: MPM2D, MFM2P
https://twitter.com/jamestanton/status/1124001870496829441






Saturday, April 27, 2019

Math Links for Week Ending Apr. 26th, 2019

Featured Links
Who doesn't want to have their very own Personal Polynomial?
Curriculum Tags: MHF4U
https://www.globalmathproject.org/personal-polynomial/

Resource Links
If you subscribe to the Thinking Classroom then you know the importance of creating visibly random groupings of students. That is, putting students in groups where they can clearly see that it is a random selection and not by any sort of criteria. So @sig225 has created some Excel Templates to help you put your students into these random groups relatively quickly
Curriculum Tags: All
https://continuousformation.blogspot.com/2019/04/visibly-random-grouping-in-excel.html

I've been playing with pattern blocks lately and I love all the new updates to the Mathies.ca. I particularly like how you can save your files and then have students upload them as starting places.
Curriculum Tags: Gr7, Gr8
https://twitter.com/davidpetro314/status/1119616192623157249

I really don't know what to do with this yet but I can't ignore a set of data about where every reported location of human feces in San Fransisco. I'l figure something out. But here, take a look and interact
Curriculum Tags: MDM4U
https://twitter.com/lachlan/status/1120425646549864448
Who knew that you could vote quadratically?
Curriculum Tags: MPM2D, MFM2P, MCR3U, MCF3M, MBF3C
https://twitter.com/mslawsonmath/status/1119426823530721281
Video Links
When I was at NCTM, I went to @DanAndersod on creating graphing art and it was great. But recently he had got a new plotter and had his students code it to create some art. Make sure to click through to the thread in the link to see all the examples
Curriculum Tags: MCR3U, MHF4U
https://twitter.com/dandersod/status/1118924084610588672
Image Links
I have been having so much fun with my new 21st Century Pattern blocks.
Curriculum Tags: Gr7, Gr8
https://twitter.com/davidpetro314/status/1120676092245893120
Need some data on favourite holidays?
Curriculum Tags: Gr7, Gr8, MBF3C, MDM4U
https://fivethirtyeight.com/features/new-years-is-americas-fourth-favorite-holiday/





Saturday, April 20, 2019

Math Links for Week Ending Apr. 19th, 2019

Featured Links
Having a repertoire of good questions to ask students while interacting with them, while their are problem solving, sense making and all other mathematical thinking endeavours is super important. So it's @TracyZager to the rescue with this awesome resource of questions.
Curriculum Tags: All
http://tjzager.com/wp-content/uploads/2017/10/Printable-Intuition-Questions-.pdf



Resource Links
Thanks to @ddmeyer now you have a resource with all the handouts and links from NCTM2019. He scraped the web and put them in one easy to find place. And if you want, you can even download the whole 2+Gb resource.
Curriculum Tags: All
http://blog.mrmeyer.com/2019/handouts-slides-and-recordings-from-nctmsd2019/

Now that @Desmos has Collections, people are starting to share their collections. Here's one from @Mr_Stadel that includes all his puzzle activities.
Curriculum Tags: All
https://teacher.desmos.com/collection/5cb0fa767db9630c766a83d5

Here's a simple activity on transforming radical functions
Curriculum Tags: MCF3M, MCR3U
https://twitter.com/pejorgens/status/1117910602993688578

Here's a simple idea to have your students investigate properties of quadratic relations. Look at the "reverse" relationship
Curriculum Tags: MPM2D, MCF3M, MCR3U
https://twitter.com/MrNiksMathClass/status/1118826645996093440
I blogged about this site the first time in 2014. You basically start with two points and create either a circle or a line segment. You then have several geometric challenges to complete in the fewest moves. Thanks to @MathTeachScholl for reminding me of this. 
Curriculum Tags: All
http://sciencevsmagic.net/geo/

Image Links
Need a bar graph and want to include probability? Here's an idea
Curriculum Tags: Gr7, Gr8
https://twitter.com/DonFraser9/status/1118940898748878848

Some linear humor for you
Curriculum Tags: MPM1D, MFM2P
https://twitter.com/centerofmath/status/1119259366471892993

I just purchased a new set of 21st Century Pattern Blocks from @trianglemancsd's site Talking Math with your Kids. They are totally fun and they work with regular pattern blocks too.
Curriculum Tags:All
https://twitter.com/davidpetro314/status/1119072424786399232
And now the Hexagons
Curriculum Tags: All
https://twitter.com/davidpetro314/status/1119420619974565890





Friday, April 12, 2019

Math Links for Week Ending Apr. 12th, 2019

Featured Links
Seriously, ths Desmos sketch is awesome. Click on the link in the Tweet if you want to see the inner workings
Curriculum Tags:MHF4U, MCV4U
https://twitter.com/SweenWSweens/status/1116443315749179397
Resource Links
Looking for some resources on Rich Tasks? The @MathforLove has your back. He's got a lot of new resources on his new site on the importance of rich tasks. There are videos and free lessons. Take a look.
Curriculum Tags: All
https://mathspathway.com/media-library/


Opinion Links
A reminder that much of what we do in school does not relate to real life.
Curriculum Tags: All
https://twitter.com/robertkaplinsky/status/1115710613689257984
Article Links
I think this is a good article from @FiveThirtyEight about how they treat probabilities. A good read for any senior class.
Curriculum Tags: MDM4U
https://fivethirtyeight.com/features/when-we-say-70-percent-it-really-means-70-percent/?ex_cid=story-twitter

Video Links
A new one from @mathisvisual on visualizing solving one step equations. Follow the link to get the descriptions of all the steps.
Curriculum Tags: Gr7
http://mathisvisual.com/one-step-equations/


Last week I was in San Diego for NCTM and while there I got around the city riding these electric scooters that were literally sprinkled all over the city. Well @MrOrr_Geek and @mathletepearce made a little mini 3 act task dealing with them
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P
https://twitter.com/MrOrr_geek/status/1116386313345884160

Image Links
A super fun Venn Diagram for you
Curriculum Tags: All
https://twitter.com/simongerman600/status/1036368175305244675
A new one from @GHSMaths
Curriculum Tags:All
https://twitter.com/GHSMaths/status/1115375666218831872

A couple of new ones from @MonaChalabi on the effect of skin colour on school suspensions
Curriculum Tags: MDM4U
https://www.instagram.com/p/BwCtC4znI6K/




Do you know what colorism is? It’s the kitchen staff who are darker than the people out front waiting tables. It’s my family members hoping their kids will be light-skinned. And it’s here, in the US school system. Using data from The National Longitudinal Survey of Youth, US sociologists found a clear correlation between how dark a student’s skin is and the probability that they would be suspended. I found this part of the study important: “The disadvantage for darker-skinned young men derives from their link to a disfavored group (criminals) in an analogous way that the disadvantage for young women does (unfeminine and unattractive).” The researchers note that there’s a lot of discretion when it comes to how the school system punishes small offenses (like talking loudly) and darker skinned pupils suffer disproportionately. They note that future research should look at Hispanic communities too (I would add all poc communities to that list!) Source: Lance Hannon et al, Race and Social Problems, 2013 The Guardian has a special series all this week on colorism edited by Dream McClinton that I highly recommend!
A post shared by Mona Chalabi (@monachalabi) on
And the other one on the effect of skin colour on average hourly wages.
Curriculum Tags: MDM4U
https://www.instagram.com/p/BwKROlsHaN_/



Saturday, April 6, 2019

Math Links for Week Ending Apr. 5th, 2019

Featured Links
I am at NCTM this week in San Diego so I think just about everything will be NCTM-centric and so that's why this is a day late. First up, I presented a session called "Data Looks Pretty Good" which was all about interesting data sets that you can look at and/or analyze (using Desmos or CODAP). The slideshow is full to the brim with data sets and extra links enough to keep anyone busy.
Curriculum Tags: MDM4U, MBF3C, MAP4C
http://bit.ly/nctm2019petro
Resource Links
Two brand new Desmos features for Activity Builder. First, now you can upload live pictures of student work (eg. that they are doing at their desk on paper) and upload it to your teacher dashboard. Basically what happens is that while  you are in Snapshots you can click a button to email you a special link that will let you upload photos from your phone. Secondly, we can finally organize our favourite activities by creating a Collection. You can create as many collections as you want and add any activity to more than one collection.
Curriculum Tags: All
There was a lot of sessions discussing ideas around equity and one that I saw was from @LBmathemagician. She spoke about (de)tracking students and I think her talk can be best summed up by @RobertKaplinski's tweet.
Curriculum Tags: All
http://bit.ly/DetrackingLNB

I didn't get to this session from @IanKerr_math, @McCormick_Math, and @rweychert but thanks to @Approx_Normal I found out about it. Check out her Twitter thread. Just the hearing about the new (to me) sports stats sites was good enough (Swish 2.0, Spotrac & Statsbomb - plus one that I recently found out about and mentioned in my above talk, Baseball Savant). Make sure you follow the whole thread.
Curriculum Tags: MBF3C, MAP4C, MDM4U
https://twitter.com/approx_normal/status/1113847412651462657

So I have always admired @Dandersod's  http://dailydesmos.com/ site from afar thinking that I couldn't do those things but I went to his session and low and behold, it's not that hard. You can try the Desmos activity here and see for yourself and check the link below for all the other resources.
Curriculum Tags: All
http://bit.ly/makingmathart




I saw @mathgarden's session about his and @cbrownLmath new book Math Recess. It's their view that we have to do more playing with math and the book is full of examples how. And as an added bonus, I got a mention in the book because I like to use the word "tinker" with math. Check it out.
Curriculum Tags: All
https://www.amazon.ca/Math-Recess-Playful-Learning-Disruption/dp/1948334100/ref=sr_1_fkmrnull_1?crid=2E5IC34F7EFBT&keywords=math+recess+singh&qid=1554605826&s=gateway&sprefix=math+recess%2Caps%2C187&sr=8-1-fkmrnull


Video Links
I was just blown away by the short session by Stephen Clower (who is blind) and @shapeoperator about how Desmos is helping the visually impaired. Watch and listen to the video below to see how.
Curriculum Tags: All
https://twitter.com/davidpetro314/status/1113960382056488960
I really loved @MathButler and @MrsNewell22's session on Desmos geometry. Lots of great ideas and simple tweaks to what you're already doing.
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P
http://bit.ly/nctm19-geometry
Image Links
Some great ideas from @saravdwerf
Curriculum Tags: All
https://saravanderwerf.com/


I realize this is just a picture but I hope you can get the gist of it. To practice dilations you just need two rubber bands.
Curriculum Tags: Gr7, Gr8
https://twitter.com/davidpetro314/status/1114189338697273344

Check out these two slides from @mathematize4all about students with dyslexia and dyscalculia. The stories from @dylanmlynn and @gelada of how they overcame their LD issues to become awesome mathematicians were great.
Curriculum Tags: All
https://twitter.com/davidpetro314/status/1114292678319939584

Here's a great strategy from @Mr_Stadel to help get kids talking
Curriculum Tags: All
https://twitter.com/davidpetro314/status/1114570269543108608

It was great to meet @MrsNewell22 and hear about her #MathGals shirts. You should totally get one (or four). The proceeds are all donated so it's totally worthwhile
Curriculum Tags: All
https://twitter.com/MrsNewell22/status/1114155915815469062


Some math related pictures I took while at NCTM:
Curriculum Tags: Gr7, Gr8
https://www.instagram.com/p/Bv4UnACHqFF/
https://www.instagram.com/p/Bv5LoitHP6v/
https://www.instagram.com/p/Bv7CvGBH_ii/




A post shared by David Petro (@lookimyourfather) on




A post shared by David Petro (@lookimyourfather) on




A post shared by David Petro (@lookimyourfather) on