## Friday, October 25, 2019

### Math Links for Week Ending Oct. 25th, 2019

There are some cool features in this new @Desmos activity. First of all it's a great activity for connecting rates and linear relations as well as introduction to systems of equations. The context of racing turtles is fairly benign but I love the feature on slide 7 where students can draw the distance time graph (either with straight segments or by hand and then race them to see the results. Definitely great to bring discussion into your classes.
Curriculum Tags: MPM1D, MFM1P, MFM2P
https://teacher.desmos.com/activitybuilder/custom/5da9e2174769ea65a6413c93

Last week I posted about how the Autograph graphing software is now free. And got this neat activity Tweeted back to me on the value of e.
Curriculum Tags: MHF4U, MCR3U

Here is a glimpse of the formation of a Desmos activity from @JennSWhite with some nice interactive features to help teach the concept of angle relationships with a transversal through parallel lines.
Curriculum Tags: Gr8, MPM1D, MFM1P
https://teacher.desmos.com/activitybuilder/custom/5db0822dbab1750b32779f08

Curriculum Tags: All

I love this video from @3Blue1Brown. Even if you are not interested in polar coordinates, I think it's still interesting because of how he shows the mathematics of why a pattern exists for prime numbers (spoiler alert, it's just a subset of all numbers). And the visual effects are pretty awesome too.
Curriculum Tags: All

I think this is easier to make than hexaflexagons. So take a shot at creating a tetraflexagon.
Curriculum Tags: All

I recorded an episode on the @MakeMathMoments podcast in the summer and it went live this week. It's about the benefits of sharing on the Internet. Have a listen
Curriculum Tags: All
Here's a possible way to help students distinguish between perimeter and area
Curriculum Tags: Gr7, Gr8, MFM1P
I added to my collection of pictures of tessellations
Curriculum Tags: Gr7
https://www.instagram.com/p/B33C_79nay4

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## Friday, October 18, 2019

### Math Links for Week Ending Oct. 18th, 2019

Sometimes when things are free, you get what you pay for. But other times, like this one, a super powerful software package that had a price tag, has become free. In this case that is the Autograph dynamic math package. I have always liked this but because there was a cost, I never bothered with it since we already had things like Desmos and Geogebra (and here in Ontario, Geometer's Sketchpad) available for free to teachers and students. So now everyone can try Autograph out.
Curriculum Tags: All
https://completemaths.com/autograph

A new @Desmos activity to investigate angle relationships
Curriculum Tags: Gr8, MPM1D, MFM1P
https://teacher.desmos.com/activitybuilder/custom/5d896650e796e00c23556d76
Make sure you read through the comments to see all the ways mathematical vocabulary can hang up students.
Curriculum Tags: All
I always like to promote new books coming out by the math teachers in the Twitter world and this time it's @robertkaplinsky who has an @OpenMiddle book coming out at the end of the month. And right now, if you preorder, there is a discount.
Curriculum Tags:All

From a session lead by @AlexOverwijk, a good sentiment for any school or department:
Curriculum Tags: All
Some awesome addition of vectors applications here. Definitely a surprising result but it really shouldn't be if physics works the way it's supposed to
Curriculum Tags: MCV4U

I have started the second season of the @OAMEtalks podcast (everyone has a podcast now, right?). This month we previewed the webinar from @jboninducharme
Curriculum Tags: All
https://talks.oame.on.ca/season-2

Though this is science related, I think the sentiment of persistence and hard work are the order of the day with this post of a Nobel Prize winner's rejection letter of her research from Nature. Something for our students to see.
Curriculum Tags: All

## Friday, October 11, 2019

### Math Links for Week Ending Oct. 11th, 2019

Hey, it's Global Math Week. That means it's time to get your kids to explode some dots. You still have time to get your class hooked up. The great thing about exploding dots is that it is appropriate all age groups. It's got a low floor and the math can go way into grade 12 polynomials. Check out the intro video from @JamesTanton and then sign up your class at the Exploding Dots website below.
Curriculum Tags: All
https://www.explodingdots.org/

Wholly moly, when I agreed to be part of the Making Math Moments Virtual Summit, I didn't realize the calibre of the speakers that I would be aligned with. Check out the speaking list and reserve your spot for next month's virtual conference.
Curriculum Tags: All
https://makemathmoments.com/summit/

And for some more virtual talks on Fractions, check out this list.
Curriculum Tags: Gr7, Gr8
https://mailchi.mp/cbecfc374a43/jll38bi0dt-2671469?e=[UNIQID]
Here's a nice resource from @HTheijsmeijer where she collected and organized a pile of grade 9 EQAO questions by strand
Curriculum Tags: MFM1P, MPM1D
Here's a great idea when dealing with radian measure
Curriculum Tags: MHF4U
And check out the connection of the above Tweet to @BenOrlin's recent post
Curriculum Tags: MHF4U

As someone who has provided PD for teachers for many years I totally know that sometimes that PD falls flat. And everyone has an opinion on what PD they don't like but often don't have ideas about how to make it better. In this post @MarkChubb3 has some insight about what good PD could look like.
Curriculum Tags: All
https://buildingmathematicians.wordpress.com/2017/03/26/professional-development-what-should-it-look-like/

This is an older post but it's the first time I saw this video from @Buzzmath. Cool stuff for dealing with collecting like terms and solving equations. Check out the link for other resources from @RobertKaplinsky
Curriculum Tags: MPM1D, MFM1P
http://robertkaplinsky.com/work/what-does-2000-calories-look-like/

What a great way to help kids (really, all humans) really get a sense of how big a billion is.
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P

## Friday, October 4, 2019

### Math Links for Week Ending Oct 4th, 2019

In the latest episode of @Freakonomics Radio, they take on Math Education in America. They are not looking at the methods of teaching, however. They are looking at what is actually being taught and "spoiler altert" their data shows we should dump calculus and focus on data literacy. I definitely agree. Don't get me wrong, I love teaching calculus but very few people actually need it. There were a couple of bits that I liked, one was about the difference between what college professors wanted from students compared to what high school teachers thought they needed for college and how different those things were and the other was the survey results on who used which parts of math.

Curriculum Tags: All
http://freakonomics.com/podcast/math-curriculum/

Though in Ontario, there is no math course that teaches scientific notation directly, it is taught in the science courses. Here is a quick little @Desmos activity to help with that process. There are some nice animations and sorts to help students represent large and small numbers.
Curriculum Tags: All
https://blog.desmos.com/articles/new-scientific-notation-activity/

Here is a short and sweet dynamic tool to use when teaching the unit circle.
Curriculum Tags: MCR3U, MCF3M, MHF4U
For those of you who like to create your own @Desmos activities, they have just added the ability for students to upload photos into graphs while in Activity Builder.
Curriculum Tags: All