Friday, July 13, 2018

Math Links for Week Ending Jul. 13th, 2018

As I am getting ready to hang out at the Desmos HQ for the Desmos Fellowship weekend, it seems fitting that this collaboration from other Desmos Fellows was released. If you are at all interested in honing your Computational Layer skills then these examples are just the thing for you. This newly created Desmos Computational Layer forum is the place for all kinds of code examples. It's the summer, so dive in and get coding.
Curriculum Tags: All
https://cl.desmos.com/c/examples


I have noticed these same issues with conversion as @TheErickLee points out.  Check out this post to get some insight into how to use these in class.
Curriculum Tags: MPM2P, MBF3C, MAP4C
https://pbbmath.weebly.com/blog/pool-conversions

If you haven't seen the benefits of students on whiteboards in your classes, I have certainly mentioned them here a lot. Here @mathletepearce gives you a lot of the research and tips that have been floating around.

Curriculum Tags: All
https://tapintoteenminds.com/whiteboards/

And clearly they are on the same wavelength because his partner in crime @MrOrr_Geek has got some advice about the benefits of whiteboards in his classes too.
Curriculum Tags: All
https://mrorr-isageek.com/whiteboards/


Who couldn't use this image as a prompt for some great math discussion
Curriculum Tags: Gr7, Gr8
https://twitter.com/mathycathy/status/1015724514880221184

What a great visualization from @MonaChilabi on the positions of penalty goal shots from World Cup and European Championships
Curriculum Tags: MDM4U
https://twitter.com/MonaChalabi/status/1017131729922846720



Friday, July 6, 2018

Math Links for Week Ending July 6th, 2018

I have been doing a lot with Desmos Geometry lately, including things with tessellations and that appears to be what their latest blog post is about. There are some fun examples within so try not to play for too long
Curriculum Tags: Gr7
http://blog.desmos.com/post/175384214302/friday-fave-for-june-29

Do you need some help with Desmos, well @marybourassa presented at the Exeter Academy recently had has all kinds of tips and tricks available on her latest blog post.
Curriculum Tags: All
http://marybourassa.blogspot.com/2018/06/desmos-at-exeter-2018.html




Some fun with transformations (and Obama)
Curriculum Tags: Gr7, Gr8
https://twitter.com/LukeSelfwalker/status/1013956335044612096


"Maria Agnesi, the Greatest Female Mathematician You've Never Heard of"
Curriculum Tags: All
https://www.scientificamerican.com/article/maria-agnesi-the-greatest-female-mathematician-youve-never-heard-of/

From @MrOrr_Geek, some advice on the paradigm that often, in a classroom, you are hurrying up ro killing time. His solution ? Have you heard of Desmos? Specifically Activity Builder.
Curriculum Tags: All
https://mrorr-isageek.com/hurry/

Of course the world cup is going on and @standupmaths has you covered with the number of possible outcomes for any team. Some tree diagrams, powers, and combinatorics can be found here.
Curriculum Tags: Gr7, Gr8, MDM4U
https://www.youtube.com/watch?v=btcVNMA7hYI

Who doesn't like a physical example of a square root?
Curriculum Tags: All
https://twitter.com/rinahyland/status/1013946117099282433

A poem from @mathgarden on what success in mathematics could be
Curriculum Tags: All
https://twitter.com/Mathgarden/status/1014566561770700800

This Fibonacci based kinetic sculpture is coo. Thanks to @bardprincess for pointing this one out. Check the link out for more info.
Curriculum Tags: All
http://www.thisiscolossal.com/2018/07/kinetic-sculpture-based-on-the-fibonacci-sequence/

A reminder that the real world doesn't often match up to our math classes.
Curriculum Tags: All
https://twitter.com/ddmeyer/status/1015296170803859456




Friday, June 29, 2018

Math Links for Week Ending Jun. 29th, 2018

So even though I tend to feature math links from gr7-12 on this blog, I though Howard Stern on David Letterman's new Netflix show doing a math talk was right on. It's not a a video but @ChrisHunter36 transcribed the whole thing and you can read it here. If you have Netflix give it a look
Curriculum Tags: All
https://reflectionsinthewhy.wordpress.com/2018/06/14/howard-stern-loves-to-show-how-he-does-the-math/

Some great low floor high ceiling problems here aligned to the Ontario Curriculum (but good for any High School Curriculum) from @taylorpeter77 and team. You can find big problems to work on from grade 9 - 12. Take a look and you will for sure find something you can bring to your high school class.
Curriculum: All
http://mast.queensu.ca/~math9-12/projects.html

Looks like the beginning of another 3Act Task from @ddMeyer. Check the comments for the reveal
Curriculum Tags: MPM1D, MFM1P, MPM2P
https://twitter.com/ddmeyer/status/1011449328362143746

Another great @Desmos tessellation from @sumdumthum
Curriculum Tags: Gr7

Who doesn't like a little Hand geometry
Curriculum Tags: MPM1D, MFM2P
Some great Sketchnotes from @DebbieDonsky depicting our Ontario Mathematical Processes.Thanks to @MrSurti for posting these. Get the hi res images or PDFs at the link below
Curriculum Tags: All
https://drive.google.com/drive/folders/18ochlrn3VFzDoKTPmGhfSnBAJk8-TKg2



A cool visualization on letter placement in words from different languages.
Curriculum Tags: MDM4U
https://twitter.com/simongerman600/status/1011630181914726400

Who doesn't like some graph based horns?
Curriculum Tags: MCR3U, MHF4U
https://twitter.com/HuckMath/status/1011325176330575872

Understanding fractions can be topical
Curriculum Tags: Gr7, Gr8
https://twitter.com/ddmeyer/status/1011996760154095616


Saturday, June 23, 2018

Math Links for Week Ending Jun. 22nd, 2018

So, in general, I think that what we specifically teach is not too important. So when a student might ask "When will I ever need _______?" My usual response was "never" but it's good brain fodder if you try to learn something. But this response from @fjmubeen to "When will I ever need Pythagoras?" Definitely worth the read.
Curriculum Tags: All
https://medium.com/q-e-d/when-will-i-ever-need-pythagoras-an-honest-response-767fe702113b
If you are looking to exploit the fact that you can program in CL (computational layer) with Desmos then posts like this recent one on the Des-blog is for you. You can start to see the power of some of the things you can do with CL in your arsenal
Curriculum Tags: All
http://blog.desmos.com/post/174703227987/friday-fave-for-june-8

I like this graphic showing what mathematicians do from @NM_Petty. Especially because notice and wonder are there as well as play with ideas and above all, have fun. Read the post for more details and give yourself a pat on the back if you already do these things to help build mathematicians early.
Curriculum Tags: All
https://creativemaths.net/blog/mathematicians-explore/

Some great ideas (9 points to be exact) from @MathforLove on rich tasks. I like that some of the examples are not that complex. Read here
Curriculum Tags: All
https://mathforlove.com/2018/06/nine-points-on-rich-math-tasks/

This is a slick app for making tessellations
Curriculum Tags: Gr7
https://twitter.com/mathemaniac/status/1008541876922839040
And if you want dynamic tessellation then look no further than @sumdumthum
Curriculum Tags: Gr7
https://twitter.com/SumDumThum/status/1010060652386213888


This would work for some fraction fun for sure
Curriculum Tags: Gr7, Gr8
https://twitter.com/Simon_Gregg/status/1008338814052511744


Here is some fun stuff from @benorlin on what if fairy tales were graphs.
Curriculum Tags: MPM1D, MFM1P
https://mathwithbaddrawings.com/2018/06/06/if-fairy-tales-were-graphs/



Friday, June 15, 2018

Math Links for Week Ending Jun. 14th, 2018

 I saw this Tweet from @mathycathy talking about @saravanderwerf's post about Stand & Talks but my take away was this site I hadn't heard of before called mathhooks.com. On this site are images to start a conversation with students. I have added it to my Best of the Web tab on this blog.
Curriculum Tags: All
https://www.mathhooks.com/8th-grade-hooks

Wondering if teaching through tasks is something you can do? Fear not, @mathletepearce has you covered. Going from teaching through examples with a few tasks at the end of a unit to using tasks for the teaching (with consolidation). Take a look at all the insights on his post.
Curriculum Tags: All
https://tapintoteenminds.com/tasks-teach-lessons/

What a nice and simple Geogebra sketch from @markus_geogebra for kids to play around with and learn the connections between position. velocity and acceleration. Thanks to @mathstechnology for pointing this out.
Curriculum Tags: MCV4U
https://www.geogebra.org/m/pdNj3DgD



A couple of new podcasts to listen to from @BBCMoreorLess. One on whether we should call it math or maths (starts at 17:43) and the other does a good job of looking at some problems with statistics in a critical way, including a bit on estimating the number of wizards in the UK in the Harry Potter series. And then a new episode of the 10 Minute Teacher Podcast with @geraldaungst talking about his book the Five Principles of the Modern Math Classroom
Curriculum Tags: All
https://www.bbc.co.uk/programmes/p068w7c8
https://www.bbc.co.uk/programmes/p066x9fh
http://www.coolcatteacher.com/e320/

A pretty sweet little Desmos enhancement when manipulating graphs. Now an easy way to zoom in on just one axis using the shift key. Thanks to @jocedage for pointing this one out.
Curriculum Tags: All
https://twitter.com/Lustomatical/status/1007683194928365568


There is a new (to me) solving equations app that is intriguing but perhaps does too much to re enforce poor math habits. In his latest post @ddmeyer uses it to talk about what he looks for in technology and don't forget to look at Graspable Math's response to his post here.
Curriculum Tags: All
http://blog.mrmeyer.com/2018/the-four-questions-i-always-ask-about-new-technology-in-education/

So fun. 3D sinusoidal sculpture. Some great stuff on @mrswoldum's feed and absolutely check out her guest post on @saravanderwerf's blog with details on how it was made.
Curriculum Tags: MCR3U, MHF4U
https://saravanderwerf.com/2016/08/14/guest-post-popsicle-sticks-glitter-math-from-stephanie-woldhum/

Another great animated tessellation done with Desmos from @sumdumthum
Curriculum Tags: All
https://twitter.com/SumDumThum/status/1005995408890269696

What a great and rich pattern. So many different curricula can be looked at with this pattern (depending on how you look at it)
Curriculum Tags: All
https://twitter.com/fawnpnguyen/status/1005174059481481216

This is a great new feed to follow for interesting sets of data and representations. Thanks to @marybourassa for pointing it out.
Curriculum Tags: MDM4U
https://twitter.com/simongerman600/status/1006235880426819584


Saturday, June 9, 2018

Math Links for Week Ending Jun. 8th, 2018

So here is some more evidence that you can use the thinking classroom model all the time and still cover your curriculum. In this case it's the grade 10 curriculum in BC but there is enough there to see some parallels with our own grade 10 curriculum here in Ontario. This is the masters thesis of @MsMariaAK which includes 18 problems to cover almost all of the curriculum. The full lesson ideas and content breakdown is in the write up.
Curriculum Tags: All
http://www.peterliljedahl.com/wp-content/uploads/Marias-Thesis-final.pdf


 We have updated the congruent triangles Desmos activity. Prior to this update, the dynamic part was done via an external WebSketch. Now it's all done within Activity Builder. It's a two day activity that investigates the nature of triangle congruency and then let's students practice (with some video solutions).
Curriculum Tags: Gr7
https://teacher.desmos.com/activitybuilder/custom/5b05be94b5f7a4090cea6374

We also added to the Geometry doc by including a construction activity for 60 and 30 degree angles. Students work through the Desmos activity while completing the same activity by hand to show how to construct these angles.
Curriculum Tags: Gr7
https://docs.google.com/document/d/1acfewNcogDfcp630BYHioT40XcioahzLp1Jnjl0ZJ9c/edit?usp=sharing





Hey math coaches, are you looking for ways to get some PD to your teachers? Why not try what @HTheijsmeijer did in her district. They offered voluntary after school PD to their teachers. They are a geographically large board so it was set up so it could be face to face or virtual. They did three sessions and they are all online for you to try out and adapt for your own board. Check out her post describing it all below
Curriculum Tags: All
http://modelthelearning.blogspot.com/2018/06/beginning-new-pd-adventure.html

This is not complete but I like where it's going. For students who are trying to wrap their heads around radian measure, this Desmos activity from @LukeSelfwalker is pretty neat. They have to use Radian measure to "unlock" the lock. Right now it's in the building stage but I'm sure it will get more complete over time so keep checking the link.
Curriculum Tags: MHF4U

Definitely some good probability calculations that can be done with this video (and analysis from @fivethirtyeight) where the Houston Rockets missed 27 3 pointers in a row.
Curriculum Tags: MDM4U
https://fivethirtyeight.com/features/the-odds-of-the-rockets-missing-that-many-3s-1-in-72000/?ex_cid=story-twitter


And speaking of thinking classrooms, I love this way that @alexoverwijk has constructed portable vertical surfaces. Now there really is no excuse. If you're building these, note the bricks embedded on the one side to make it less tippy.
Curriculum Tags: All
https://twitter.com/AlexOverwijk/status/1000086435964350466

You can always count on @monachilabi to have some interesting representations of data. In this case a scatter plot on the connection between acne and stress. Click on the Instagram link for the whole story.
Curriculum Tags: MPM1D, MFM1P, MDM4U, MAP4C
https://twitter.com/MonaChalabi/status/990981708903313409

Here's a nice little data set for students who are into pets
Curriculum Tags: Gr7, Gr8
https://twitter.com/MikeFlynn55/status/1002645269232738305

You and your students should find some patterns in these lights. What questions could you ask?
Curriculum Tags: Gr7, Gr8
https://twitter.com/DonFraser9/status/1003668172845674496