Friday, March 17, 2017

Math Links for Week Ending Mar. 17th, 2017

I have loved Desmos Activity builder since it came out. Over the last year or so I have taken a stab at creating a bunch of these. They run the gamut of some geometry stuff from grade 6 to Calculus and in between. Try them out and let me know if you see room for improvement.
Curriculum Tags: All
http://engaging-math.blogspot.ca/p/desmos-activities_10.html

I love when things are made visual (and interactive). This site does both, although some of the concepts go beyond elementary and secondary math, there is enough here that you can still find something to bring statistics to life for your kids. Thanks to @Sharon_Drummond for this one.
Curriculum Tags: Gr7, Gr8, MBF3C, MDM4U, MAP4C
http://students.brown.edu/seeing-theory/

How about a fun clock that requires you do do math (order of operations) to tell the time? Thanks to @kMarkPet for this one.
Curriculum Tags: All
http://nerdist.com/this-awesome-clock-makes-you-do-math-to-figure-out-the-time/


It was PiDay this week. You can see all of my Pi related links on my PiDay Pinterest board here. Here's a few more. This one from Science Friday.
Curriculum Tags: All
https://sciencefriday.com/spotlights/pi-day/

I made this video to explain how to make your own Desmos Marbleslides.
Curriculum Tags: All
https://www.youtube.com/watch?v=c9R6_Pt-ktY

My daughter pointed these out to me. They are a series of videos where they survey 100 people (usually they were made of demographically diverse groups) about various topics and ask them to choose yes or no by stepping into a circle. A lot of the questions are US centric (but not all). But you might be able to use them to talk about surveying and bias. Click on the link below for all of the videos in the first season.
Curriculum Tags: Gr7, Gr8, MBF3C, MDM4U, MAP4C
https://www.youtube.com/watch?v=qAQt0ICZAr8&list=PLJic7bfGlo3q0xD2Baw3jCHlt1blXkigp&index=1

I love this video from @standupmaths where he approximates Pi by randomly rolling two 120 side dice 500 times and breaking them up into numbers that have cofactors and those that don't (and if you want here's the 2hrs of raw footage). You could easily repeat this in a class and wrap it around the idea of factors of numbers. So good.
Curriculum Tags: All
https://www.youtube.com/watch?v=RZBhSi_PwHU

Here's a video for PiDay on why Pi is important. As if we need to know.
Curriculum Tags: All
https://www.youtube.com/watch?v=RpWFli2Iz9E

And what is PiDay without a song
Curriculum Tags:All
https://www.youtube.com/watch?v=e11W7EzoivE

Although they admitted to this being Photoshopped, it's still nicely done.
Curriculum Tags: All
https://twitter.com/Rockies/status/841717552795418624
If you wanted you cold have run a virtual 5km race on Pi Day. I guess that means you register and pledge to run 5km on PiDay and they send you a medal. At least the medal is very cool. Thanks @Robin_Grondin for this one.
Curriculum Tags: All
https://www.virtualpaceseries.com/portfolio-item/pi-day-3-14/


And finally a Pi related question with what has a surprising (at least to me) result. Thanks to @Esping_math for this one.
Curriculum Tags: Gr8
https://www.facebook.com/Mathhappiness/photos/a.170688796611683.1073741829.101136273566936/438568976490329/?type=3&theater


Friday, March 10, 2017

Math Links for Week Ending Mar. 10th, 2017

If you haven't been following @marybourassa's venture into a full thinking calculus classroom, she just posted her first full unit which was on derivative rules. Keep following her if you are looking to make your calculus class a thinking classroom too.
Curriculum Tags: MCV4U
http://marybourassa.blogspot.ca/2017/03/full-unit-in-thinking-classroom.html
This is kind of neat. This restaurant puts the calories, protein, fat and carbohydrates for exactly what you ate on your bill. You could do some fun proportional reasoning with this. Thanks to Janet Jacques for this one.
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P, MAT1L
http://www.mediapost.com/publications/article/128527/burgerville-receipts-provide-orders-nutrition-inf.html?edition=





I just finished this Desmos activity on position-velocity-acceleration functions. The reason I did it this way was because I always felt that students often didn't get that this was motion in a straight line. So it was nice to be able to show the motion explicitly.
Curriculum Tags: MCV4U
https://teacher.desmos.com/activitybuilder/custom/572c3338d7cb120b107985d5


This past week we had International Women's Day. So it is appropriate to have at least one article to commemorate it.
Curriculum Tags: All
https://www.quantamagazine.org/20170308-women-math-physics/

I don't think we can have enough stories and essays about loving math. Here's one from @mathgarden
Curriculum Tags: All
https://medium.com/@sunilsingh_42118/teaching-mathematics-with-love-intimacy-and-storytelling-497ec8e61ccb#.32ht0gpro

We've just done some PD at our board about formative assessment and we used some of Damian Cooper's stuff. Here @MarkChubb3 talks about a lot of what Cooper says along with some @marian_small and @JoeBoaler too. I love the first analogy that he relays from cooper about what made the biggest difference for figure skaters at the Olympics, the coaches or the judges. I'll let you read on in his post to find out.
Curriculum Tags: All
https://buildingmathematicians.wordpress.com/2017/02/25/who-makes-the-biggest-difference/

The link above about the calories on the restaurant bill reminded me of this @mathalicious video from a few years back.
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P
https://www.youtube.com/watch?v=V99yblhzXEA

I love this visualizations of powers of ten from @gfletchy
Curriculum Tags: Gr7, Gr8
https://twitter.com/gfletchy/status/837745388438306818
A couple from @DataIsBeautiful. The first is a bar graph of the fastest animals
Curriculum Tags: Gr7, Gr8,
https://twitter.com/DataIsBeautiful/status/838106104525643776
The next one is a for you classic gamers out there with this data about the game Civilization.
Curriculum Tags: Gr7, Gr8
https://twitter.com/DataIsBeautiful/status/838106111429459968



Friday, March 3, 2017

Math Links for Week Ending Mar. 3rd, 2017

Recently @pgliljedahl spoke to teachers in the Ottawa area and I saw some recaps show up on Twitter. For a detailed recap, don't miss @mathtans' play by play of the whole talk. I specifically like the beginning with the descriptions of the slow start with using vertical surfaces. Also @Laura_Wheeler managed a couple of sketchnotes too. We have been working on making thinking classrooms down here to so it was great to see these resources.
Curriculum Tags: All
https://mathiex.blogspot.ca/2017/02/feb-pd-peter-liljedahl.html
https://mslwheeler.wordpress.com/2017/02/27/studenting-visibly-random-groups-sketchnotes-thinkingclassroom/


I love it when you go deep on a topic. In this case it's optimizing cans from @DataGenetics. With some of the data here you could probably connect it to grade 9 optimization but they go deeper and take it all the way to the calculus level. And as a bonus, here's a discussion of reasons why packaging is the way it is. Thanks to Janet Jacques for this one.
Curriculum Tags: MCV4U, MPM1D, MFM1P
http://www.datagenetics.com/blog/august12014/index.html

If you are in Ontario you've heard of the Renewed Math Strategy. Well, they have a new website for all kinds of math goodies. Check it out.
Curriculum Tags: All
http://rms.thelearningexchange.ca/

Having done a couple of Ignites myself, I am always happy to highlight a good one. It's from a couple of years ago but I hadn't seen it before. I like this one from @robertkaplinsky on productive struggle. It's always hard to get everything you want said when the slides are flying by at 15s a pop but he does a good job of highlighting the important points. I have used the bench press analogy myself many times.
Curriculum Tags: All
http://robertkaplinsky.com/my-ignite-talk-on-productive-struggle/

And when that video came up, another of my favourite speakers did. Here is @Marian_Small from the same session
Curriculum Tags: All
https://www.youtube.com/watch?v=Wbl2kzWcYt8

A new three act task from @mathletepearce using a great image to provoke questions. Good for multiplication and proportional reasoning.
Curriculum Tags: Gr7, Gr8, MFM1P, MPM1D
https://tapintoteenminds.com/3act-math/donut-delight/

Some neat geometric architecture pointed out by @MrHonner
Curriculum Tags: Gr7, Gr8
http://mrhonner.com/archives/17508



Friday, February 24, 2017

Math Links for Week Ending Feb. 24th, 2017

I totally love this activity from @SteveWyborney. Splat is a way to introduce the concept of algebra at just about any grade level. He has produced 50 free lessons (in PPT format) and they span in difficulty from Gr 1-12. So friendly, I think that you could give these and the kids would totally be engaged. You should absolutely check this out. Thanks to @mathletepearce for pointing this one out.
Curriculum Tags: All
http://www.stevewyborney.com/?p=893

I have had this blog post kicking around for a few months now in various stages of completion. I finally forced myself to complete it. It basically has four activities that centre around rational functions in MHF4U. The activities span from a more traditional group work type vertical surface to hands on card sorts, Desmos investigations and MarbleSlides.
Curriculum Tags: MHF4U
http://engaging-math.blogspot.ca/2017/02/investigating-graphs-of-rational.html

This is a neat post from @FiveThirtyEight. It's about the idea that there may be problems in the scientific community with fudging results. It would be a great discussion on how data can be manipulated to get the result that you want. They even have some interactives so you can see how easily it could be done.
Curriculum Tags: MDM4U
https://fivethirtyeight.com/features/science-isnt-broken/

For the last few years @marybourassa has shared her day by days for her grade 10 courses. Now, hopefully, she's doing the same thing with her Calculus classes. She, in her words, is trying to build a thinking class. Hopefully we will get a window in.
Curriculum Tags: MCV4U
http://marybourassa.blogspot.ca/2017/02/thinking-classroom-day-1.html

Here's a great opinion piece from Toronto teacher Alexandru Pintilie. Don't let the title fool you: "I teach high school math. Is my work pointless?". Ultimately it's about the beauty in math.
Curriculum Tags: All
http://www.theglobeandmail.com/life/facts-and-arguments/i-teach-high-school-math-is-my-workpointless/article34086848/

If you are into the idea of Growth Mindset but new to the idea, this article might be a great place to start. Thanks to @Robin_Grondin for this one.
Curriculum Tags: All
https://ww2.kqed.org/mindshift/2016/12/05/how-to-integrate-growth-mindset-messages-into-every-part-of-math-class/




Here's a neat little story about how bad data affected the English soccer many decades ago.
Curriculum Tags: Gr7, Gr8, MBF3C, MDM4U
https://fivethirtyeight.com/features/how-one-mans-bad-math-helped-ruin-decades-of-english-soccer/
I'm not a coffee drinker so I don't really understand the whole big woop with the Roll Up the Rim contest. But as it is with any contest, there are probabilities involved. In this particular instance the probability of winning is 1 in 6. And as it turns out there are many people on the Interwebs that are willing to test that theory by buying coffee to see how many winners they get. And for the most part the probabilities work out. Check some of them out below.  Thanks to @bardprincess for this one
Curriculum Tags: Gr7, Gr8, MBF3C, MDM4U
http://www.ctvnews.ca/lifestyle/100-cup-challenge-aims-to-reveal-roll-up-the-rim-odds-1.3296719

From @FuriousPete https://www.youtube.com/watch?v=DW_VIfpK0fE

From @StevenMerk https://www.youtube.com/watch?v=YlDXqvfq9wk

From @ItsYeBoi https://www.youtube.com/watch?v=Uh1D-VpzJQA

Here's a cool set of data about whether what classic rock means now
Curriculum Tags: MBF3C, MDM4U
https://fivethirtyeight.com/features/why-classic-rock-isnt-what-it-used-to-be/


Friday, February 17, 2017

Math Links for Week Ending Feb. 17th, 2017

I reposted this activity after some minor tweaks and I wasn't gonna mention it but a lot of people seemed to like it so I thought I would highlight it here. It's an activity that focusses on the geometric model of the Pythagorean theorem. There is a version that uses physical squares and also a version that uses Explain Everything as a virtual manipulative. There is also a Smart Notebook file and a dynamic sketch to use as an extension.
Curriculum Tags: Gr8, MFM1P
http://engaging-math.blogspot.ca/2014/12/the-area-representation-of-pythagorean.html

Someone pointed out this site to me from @jaccalder this week. There are tech things but more specific to Ontario, many resources for Grade 9 Applied math. This includes many tech tools including some Nearpod files and coding references to MFM1P.
Curriculum Tags: MFM1P
http://teachercalder.ca/



I like marbleslides from Desmos and also like when teachers share their own versions. In this post @SweenWSweens shares his set of weekly marbleslide challenges Some of them are pretty hard and you would need many types of functions to solve them. The cool thing is some of his student solutions. So amazing. Thanks to @MaryBourassa for pointing this one out.
Curriculum Tags : MCR3U, MHF4U
http://sweeneymath.blogspot.ca/2017/02/desmos-marbleslide-challenges.html

As many of you know, I love it when teachers share their work. And that goes for when they take a standard problem (you have goats and chickens and there are this many legs....". Here @Wheeler_Laura includes a PearDeck version of these activities where the teacher can see the student work as soon as possible (as it happens)
Curriculum Tags: MFM1P, MPM1D, MPM2D, MFM2P
https://mslwheeler.wordpress.com/2017/01/21/chicken-goat-legs-mfm2p-pbl/
https://mslwheeler.wordpress.com/2017/02/11/height-vs-foot-length-mfm1pmpm1d-3actmath/


This TEDx talk from @MathforLove came out about a year ago but I only saw it for the first time this week. It is awesome. I love all the ideas about how to maximize your student's learning in your math classes. I also like the way he has the audience go through a cool factoring activity.
Curriculum Tags: All
https://www.youtube.com/watch?v=ytVneQUA5-c

Hey, I am now an ambassador for the Global Math Project. Other Ontario ambassadors included @mathgarden, @mathletepearce, Ron Lancaster, @MrRsNabrhood, @AllenMath, @msbjacobs, @CRichardTeacher, @JacquieBrodsky, @AmyLin1962, @Paul_math, @WillGourley and @MatthewOldridge among others from all over the world. And our push this year will be regarding the first annual Global Math Week. Take a look
Curriculum Tags: All
https://www.theglobalmathproject.org/ambassadors


My youngest kid is 15 now so it's been a while since I've seen an Arthur episode but it seems that that show is still going and the subject of this episode is whether there is such thing as a math person. Go Arthur. Thanks to @duncantenacity for pointing this one out.
Curriculum Tags: All
https://www.youtube.com/watch?v=t3Q2QPHTq4E


His visualizations on socially relevant data about countries were awesome and his interactive GapMinder tool was the way you could create your own but now @HansRosling has passed away. He once said "CNN got it wrong; Graphics are not about "How to make data look sexy", but to reveal that data is sexy!" He will be missed.
Curriculum Tags: All
https://www.washingtonpost.com/news/wonk/wp/2017/02/08/remembering-hans-rosling-the-visualization-pioneer-who-made-data-dance/?utm_term=.1c061008ab79


I love this data set that is represented 25 different ways. Which one would you pick as correct?
Curriculum Tags: MDM4U
http://flowingdata.com/2017/01/24/one-dataset-visualized-25-ways/