Friday, February 21, 2020

Math Links for Week Ending Feb 21st, 2020

Featured Links
For years on the @Desmos homepage, there have been links to sample images created with the Graphing Calculator. So, to me, it seems surprising that it has taken this long for them to have a formal contest. So here it is, the first Desmos Art Contest. Students can win cash prizes in each of the age groups. Due date is April 10th. Get all the details at the link below
Curriculum Tags: All
https://blog.desmos.com/articles/art-contest-launch/
Resource Links
A new @Desmos created activity dealing with scatterplots, linear relations and equivalent ratios (and cats).
Curriculum Tags: MPM1D, MFM1P
https://teacher.desmos.com/activitybuilder/custom/5e42c7ac8be9fd0c5cfbe706

Here is a great @Geogebra app created by @Brzezinski_Math to randomize cylinders and ask students to determine possible configurations that make each cylinder possible.
Curriculum Tags: Gr8, MPM1D, MFM1P
https://www.geogebra.org/m/wkcgyxex

This is an activity we created to help develop the idea that the volume of a right prism is equal to the area of the base times the height. It's relatively simple as it just uses snap cubes and a grid handout. There is also some practice via paper & pencil or @Desmos.
Curriculum Tags: Gr7
http://engaging-math.blogspot.com/2020/02/volume-of-irregularly-shaped-prisms.html


I've also had a couple of other @Desmos activities for multiplying and dividing decimals that focus on some of the properties of those operations. Like for multiplication of values with the same sets of digits (eg 4.5x3.4 and 0.45x3.4) the numerical values are the same but the decimal place changes and similar properties for dividing decimals. These are not activities for determining how to multiply or divide decimals but instead, what are the consequences of doing so.
Curriculum Tags: Gr7
Multiplication: https://teacher.desmos.com/activitybuilder/custom/5e0560c8531c0f294457021a
Division: https://teacher.desmos.com/activitybuilder/custom/5e101b65e0d5c71748b22118

Do you want to know how geometry relates to arithmetic or probability to calculus? Then why not check out this interactive Map of Mathematics from @QuantaMagazine. The interface is pretty slick. Just choose a topic and see the "tentacles" dynamically reach out to all the related topics. There are some very cool animations here and definitely some great information. Check it out.
Curriculum Tags: All
https://www.quantamagazine.org/the-map-of-mathematics-20200213/

Looking for some ideas to use technology meaningfully in math class. Then check out this post from @Catlin_Tucker on using online stations including things like @Desmos, Quiziz and Google Lockboxes. Thanks to @Joe_Sisco for pointing out this one.
Curriculum Tags: All
https://catlintucker.com/2020/02/meaningful-technology-integration-in-math/

Video/Audio Links
The second of three bonus episodes that highlight the featured speakers from this year's OAME conference in May. This time featuring @KamauBobb, @RichardVanCamp, @FawnPNguyen and @GCouros.
Curriculum Tags: All
https://talks.oame.on.ca/season-2





This is the last of three bonus episodes highlighting all the featured speakers from OAME 2020. This time its just a few minutes from each as they answer the question: " Is there anything that you believed to be true about teaching or learning when you began your career that you no longer do?". It was one of my favourite episodes to record and I loved the responses. Have a listen
Curriculum Tags: All
https://talks.oame.on.ca/season-2






This is a great example of addition of vectors
Curriculum Tags: MCV4U
https://twitter.com/AeronewsGlobal/status/1228716036117221376
A great animation that turns a 3D shape into a tessellation and make sure you check out the discussion for all the variations.
Curriculum Tags: Gr7
https://twitter.com/panlepan/status/1229288251372003328

Article Links
Should students take calculus in high school? Read here to find out.
Curriculum Tags: MCV4U
https://www.forbes.com/sites/johnewing/2020/02/15/should-i-take-calculus-in-high-school/#6f7464387625


Image Links
The geometry of the cosmos. In this case, planets
Curriculum Tags: MCR3U
https://twitter.com/simongerman600/status/1229008787136270336

Here's a challenging set of angle problems
Curriculum Tags: Gr8, MPM1D, MFM1P
https://twitter.com/pickover/status/1228838549233053702



Friday, February 14, 2020

Math Links for week Ending Feb. 14, 2020

Featured Links 
I've always been a big fan of Geometer's Sketchpad. In recent years, it has bounced around different companies as things were bought out from other things. But thanks to a small team of dedicated people, it continues to live on and get better. If you are interested in beta testing the latest version then you can contact Daniel Scher. And if you are looking for some web sketches created with Sketchpad, check out the link for all of mine.
Curriculum Tags: All
http://engaging-math.blogspot.com/p/web-sketches.html
Resource Links 
I always appreciate these little problems that @JamesTanton posts. They are so simple but cause students to think. Don't forget to check the comments for the discussion too.
Curriculum Tags: Gr7, Gr8
https://twitter.com/jamestanton/status/1227026734089814016



Opinion Links 
Sound advice for any teacher of any subject
Curriculum Tags: All
https://twitter.com/NatBanting/status/1225983120748486656

" No one is a prophet in their own land " - This quote from @RobertKaplinski really resonated with me because it refers to the fact that sometime those closest to you take your ideas for granted. Click through and read on if you think this sounds familiar.
Curriculum Tag: All
https://robertkaplinsky.com/no-one-is-a-prophet-in-their-own-land/



Video Links 
Really. It's two dimensional.
https://twitter.com/GHSMaths/status/1225772856547606528

Clearly I need to get myself a laser cutter. But until then, this video is a nice visual connection to the circle for radian measure.
Curriculum Tags: MHF4U
https://twitter.com/AlexKontorovich/status/1227247510785314816



Image Links 
I love these nano scale images to show how symmetry and geometry are natural phenomena. Click through the link to see more.
Curriculum Tags: All
https://geometrymatters.tumblr.com/post/176050697919/geometry-at-nano-scale





Friday, February 7, 2020

Math Links for Week Ending Feb 7th, 2020

Featured Links
We released two episodes of OAME talks within the last week. The first was our normal monthly episode featuring @AlexOverwijk and @PaiMath. They were talking about their upcoming webinar "Manage Flow and Let Go!" about some of the logistics of the Thinking Classroom. The second episode is a bonus episode that highlights the featured speakers on day 1 of OAME 2020 in May. That's @Drvcjones, @MaryBourassa, Ian VanderBurgh, @ddmeyer & @Marian_Small all talking about their featured talk. Check both episodes out below.
Curriculum Tags: All
https://talks.oame.on.ca/






Resource Links
I created two related @desmos activities about multiplication. The first is one is for students to investigate the idea of multiplying two digit numbers by using an area model and to eventually take a question like 48x62 and essentially multiply (40 + 8)x(60x2) instead. The second one expands on this idea to model a single decimal number by another single decimal number. First in the form 1.3x1.8 and then moving to questions like 3.5x7.2. Both have random problem generators.
Curriculum Tags: Gr7, Gr8
https://teacher.desmos.com/activitybuilder/custom/5df791e5c088050a85da3010
https://teacher.desmos.com/activitybuilder/custom/5df8bfcd8e46f261acdde8bf

It's no secret that I love @Desmos. You might too and so you should apply to be a Desmos Fellow. It's a great way to deepen your Desmos knowledge and become part of a group fo educators who are trying to use technology to enhance teaching.
Curriculum Tags: All
https://blog.desmos.com/articles/fellows-cohort-five/

Here is a fraction manipulative to help with equivalent fractions and addition of fractions. Download the pdf of the instructions and printables.
Curriculum Tags: Gr7, Gr8
https://creativemaths.net/our-creations/fraction-assistant/







Don't forget to send your @Desmos Math-o-gram for Valentines day
Curriculum Tags: All
http://www.mathogram.com/



Video Links
I interviewed @DrvcJones this week for the @OAMEtalks podcast and was introduced to many of the resources she produces. One fo them is her YouTube Channel where she does what she can to help students with their #MathEsteem
Curriculum Tags: All
https://www.youtube.com/user/DrVCJones/videos

Getting Ready for Valentines Day
Curriculum Tags: All
https://twitter.com/ChocoLinkage/status/1224879931949113344



Image Links
Some real world ratios here
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P
https://twitter.com/ddmeyer/status/1225555016326344704
Who doesn't like mathematical poetry?
Curriculum Tags: All
https://poetrywithmathematics.blogspot.com/2020/02/prize-winning-math-poems-2020-ams.html







Friday, January 31, 2020

Math Links for Week Ending January 31st, 2020

Featured Links
I have liked a lot of the stuff that @SteveWybourney produces (my favourite is still Splat!). This year he has produced an e-book of his top 20 teaching tips. Though this is not a resource about mathematics, it does have some great ideas for general classroom practice. I won't give them all away here (you have to sign up at the link below) but I will tell you these are tips in the form of small things that you can do to help your relationships with your students. I will tell you one of my favourites and that is to "Tell a Story". I have had a lot of contact with this idea lately. First I saw it in a book called Weekend Language (recommended to me by @GFletchy) where the premiss is that if you want to give compelling presentations that "stick" then rather than have flashy graphics and dynamic slideshows, all you need are good stories (think: the way that we spend the weekends talking to our friends). Another way that story has come was during a recent interview I did for the @OAMEtalks podcast. I interviewed @RichardVanCamp and he spends the bulk of his time telling stories and we talked about the importance of story in education.
Curriculum Tags: All
https://stevewyborney.com/2020/01/free-e-book-top-20-teaching-tips-for-2020/

Resource Links
A new activity from @Desmos for describing transformations. And at the end there is a challenge creator for students to create their own transformation with a polygon.
Curriculum Tags: Gr7, Gr8
https://teacher.desmos.com/activitybuilder/custom/5d895b60c1fa4c4b47ca7375






Here's a nice dynamic resource from @Brzezinski_Math regarding radian angles and the circle. It's good practice for your students since it generates as many random practice questions as you need.
Curriculum Tags: MHF4U
https://twitter.com/Brzezinski_Math/status/1222878307919781888

Article Links
Who knew that bees could do math?  Thanks to @KMarkPet for this one
Curriculum Tags: All
https://www.quantamagazine.org/what-scarlett-howard-learns-from-the-bees-she-teaches-20200122/


Here is the math your students actually need to know now:
"Now that everyone has powerful computers (like that smartphone in your hand), we should teach math as if computers existed.
Now that everyone is an entrepreneur, we should teach financial literacy (make it a graduation requirement like Missouri).
Now that we all use probabilities all day long in life, work, and leisure, we should teach statistics and probability.   
Now that every field is computational, we should invite youth to attack big problems with big data sets (that’s called data science)."
Read more here:
Curriculum Tags: All
https://www.forbes.com/sites/tomvanderark/2019/11/14/the-math-youth-need-to-make-a-difference/#58e149e4bd62

Video Links
I think it's always important to show kids why math may be important. In this case these two videos show the connection between geometry and welding.
Curriculum Tags: Gr7, Gr8
https://www.youtube.com/watch?v=fSOgsyh6fXY
https://www.youtube.com/watch?v=9RyTbdbZTNw





Image Links
Ok so here's an image of data on the squirrels in New York's Central Park. 3100 pieces of data and you can have them all in this download. Plus you can use their dynamic tools to create your own data visualizations.
Curriculum Tags:MDM4U
https://flowingdata.com/2020/01/09/squirrel-census-count-in-central-park/







Friday, January 24, 2020

Math Links for Week Ending Jan 24th, 2020

Featured Links
There is no secret of my love of Desmos so I'll start with couple of announcements. One is a new activity and the other is an opportunity. First, the new activity about scientific notation. It's a relatively short activity but it has nice visuals and has some student choice involved.
Curriculum Tags: Gr8, MFM1P, MPM1D
https://teacher.desmos.com/activitybuilder/custom/5e28b8764fbfa25124f88562

Secondly, if you like Desmos and find yourself often talking to other teachers about it, then Desmos wants you. They are looking for experienced teachers to help spread the word and present workshops about Desmos. If you want to become a Desmos Certified Presenter, then click the link below.
Curriculum Tags: All
https://jobs.lever.co/desmos/97773b88-eeb5-4d30-aaa2-b7cb772aa6a2

Resource Links
I like this activity from @emergentmath. It's about transversals and parallel lines. It starts with a favourite strategy of mine called concept attainment where students see examples and non examples. But the crux of the lesson is a simple activity that relates to a real map of streets. We could probably all do a similar activity using a screenshot of the streets in our own town.
Curriculum Tags: Gr8, MPM1D, MFM1P
https://emergentmath.com/2020/01/04/transversals-lesson-street-views/

I always appreciate how @MissCacul8 takes a math concept and puts some bling on it. In this case it's her kids doing a project on the unit circle by having to make a representation it. It seems simple enough but click on the link and see what her kids did. So many pies and cakes.
Curriculum Tags: MCR3U, MHF4U
http://misscalculate.blogspot.com/2019/11/unit-circle-art-v.html






I've always been a fan of Open Middle problems. I think that they give students the licence to be correct with more than one way of doing things. And you can certainly get some open middle problems at the https://www.openmiddle.com/ but now @RobertKaplinski now has released the Open Middle book. This has all the info you need to get started and learn how to facilitate those types of questions.
Curriculum Tags: All
https://www.stenhouse.com/content/open-middle-math




Video Links
In this video @StandupMaths tries to find the "average" person and along the way finds some issues instead.
Curriculum Tags: Gr7, Gr8, MBF3C, MDM4U
https://www.youtube.com/watch?v=NbiveCNBOxk


Image Links
Some interesting statistics here dealing with
Curriculum Tags: MDM4U






Friday, January 17, 2020

Math Links for Week Ending Jan. 17th, 2020

Featured Links
If you are looking for someone to follow with particularly good dynamic geometry skills then you might consider @giohio. Check out these two sets of proofs without words for Pythagorean Theorem. One of them in @Geogebra and one of them in @Desmos.
Curriculum Tags: Gr8, MPM1D, MFM1P, MFM2P
https://www.geogebra.org/m/jFFERBdd
https://teacher.desmos.com/activitybuilder/custom/5adc7bfced2ada678516940e

Resource Links
Looking for some online training then you might consider this series put on by @math_inquirer and @FlippingFocus. It's an " interactive and online, professional learning opportunity designed and offered to help educators meet the sophisticated needs of teaching," Check the details out at the link below if you are interested.
Curriculum Tags: All
https://www.flippedpl.ca/balance.html


Getting kids to move around in math class is a great idea and @SaraVDWerf has your back when it comes to ways to facilitate that movement using many of those great internet resources that have been around for a while like WODB, Would you Rather, Open Middle and more. Check out her post on how to get kids to move with all of these resources (and more).
Curriculum Tags: All
https://www.saravanderwerf.com/mathmovement-ideas-with-well-known-math-routines/



Video Links
Who can argue against the fact that math and art aren't connected? Such precision.
Curriculum Tags: All
https://twitter.com/FogleBird/status/1204253487703478274

Image Links
Need some ideas to focus on number sense with your students in terms of the upcoming Super Bowl? @DonFraser9 has your back
Curriculum Tags: Gr7, Gr8, MFM1P
https://twitter.com/donfraser9/status/1217489892864937990?s=21





Friday, January 10, 2020

Math Links for Week Ending Jan. 10th, 2020

Featured Links
It looks like @MrDeltaMath has been busy. If you have not ever looked at his site, you are really missing something that could help your students work through problems. In this case he's gone through geometry proofs but there are so many other dynamic solutions on this site for other math topics it won't matter what you (or your students) are looking for and as a bonus, it's free.
Curriculum Tags: All
https://www.deltamath.com/



Resource Links
This is a fairly simple set of slides from @LukeSelfwalker students are asked to choose the smallest number from the list that no one else has chosen. The display of the class's data shows up as a dot & box and whisker plot. There could be a lot of places for discussion here. From the strategy for choosing a value to the way the data is organized.
Curriculum Tags: MDM4U
https://teacher.desmos.com/activitybuilder/custom/5e13ffc10199f84025da77a8
Here's another great one from @LukeSelfwalker. This time its estimating radian angles. Such simple but effective practice and I like how he has students reflect at the end on how much they have done.
Curriculum Tags: MHF4U
https://teacher.desmos.com/activitybuilder/custom/5e10b733de57050e8d7b9c9f
I am a big fan of simple games that help reinforce math concepts. In this case it's probability based with this simple sum game with two dice. @MBurnsMath does a great job of explaining it and despite the fact that it starts out as an activity for grade 2 students, there are definitely ways to have older students use it as a math starter. Thanks to @MarkChubb3 for pointing out this one.
Curriculum Tags:  Gr7, Gr8
http://www.marilynburnsmathblog.com/one-of-my-all-time-favorite-games/

Though this activity from @mathface22 is long, it provides lots of practice and for students who are learning to sketch polynomial functions. I like how it allows you to trace out the function you think represents the equation and then shows you the correct graph.
Curriculum Tags: MHF4U
https://teacher.desmos.com/activitybuilder/custom/5e0a41c10279c6341abf838c

There is a new activity released from @Desmos to introduce the idea of dilations. Only 8 slides but nice and interactive as you would expect.
Curriculum Tags: Gr7
https://teacher.desmos.com/activitybuilder/custom/5e13560bbefb180dcd92d427
Video Links
Looking for help in creating your own @Desmos Activities? Then check out @MJFenton's webinar on that very topic.
Curriculum Tags: All
https://www.youtube.com/watch?v=fxHCihwDCiI


Image Links
Even though most of these are politically based, there are some nice ones that are not
Curriculum Tags: MDM4U
https://fivethirtyeight.com/features/the-56-best-and-weirdest-charts-we-made-in-2019/