I think that sometimes we think that students shouldn't have too much trouble with dilations since it's just increasing or decreasing in size but I have found that students, in general, have difficulty with proportional reasoning and so dilations can pose a particular problem. In this new @Desmos activity, students get a chance to sink golf balls in holes using the principles of dilations and then end up with some similar triangles
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P
https://twitter.com/Desmos/status/1192859285962645504
Resource Links✨💚 DILATION MINI GOLF 💚✨— Desmos.com (@Desmos) November 8, 2019
In our new activity students will experience dilations in their natural habitat: the mini golf course! https://t.co/LrS225tDV0 pic.twitter.com/g4Z177F8o6
Looking for something to do next weekend. How about a free virtual summit from @makemathmoments with over 2 dozen great speakers. It's Saturday & Sunday of next week and you can check out my session on maximizing your online PLN at noon on Saturday.
Curriculum Tags: All
https://makemathmoments.com/summit/
When I first saw this Tweet, I dismissed it as not interesting but I'm not sure why but I was drawn back to it and I was hooked. My strategy was to start with a single fold and see what happens. Definitely great for helping kids with spatial reasoning.
Curriculum Tags: All
https://twitter.com/jamestanton/status/1190626271610339330
Fold a piece of paper in any way you like into layers of congruent rectangles. If you could somehow paint all the upward facing surfaces black, and then unfold the paper, what pattern of black and white rectangles would you see on the full unfolded sheet? pic.twitter.com/GkWY5KysEo— James Tanton (@jamestanton) November 2, 2019
I have been doing this blog for over 6 years now (and sharing resources in other forms for many years before that). So I am always happy when I find other people that share resources that they have found. So here, @mathsjem occasionally does posts of math related things that she has found. Take a look.
Curriculum Tags: All
https://www.resourceaholic.com/2019/11/gems117.html
New! My 117th gems post. Ideas, updates and resources for maths teachers. Includes my slides from #marvellousmaths.💎— Jo Morgan (@mathsjem) November 2, 2019
Hat tips to follow. https://t.co/BtyR9ZalvR#mathschat #mathsgems #teammaths pic.twitter.com/Go6ylqqPyz
Although in this activity by @TheErikLee he has focused on the idea of translating to and from scale diagrams or blueprints, I think it could be used for any context involving scale diagrams or ratio and rate.Curriculum Tags: Gr7, Gr8, MAP4C
https://pbbmath.weebly.com/blog/scale-otters
Video Links
Here is a new one of those dynamic bar graphs, this time showing the best selling music artists over time in the last 50 years.
Curriculum Tags: Gr7, Gr8, MBF3C, MDM4U
https://www.youtube.com/watch?v=a3w8I8boc_I
Here's a neat combinatorics/probability puzzle that @standupmaths demonstrates with @alexbellos. And one of the things I just found out is that for many of @standupmaths videos, there are teacher resources that can be found here.
Curriculum Tags: MDM4U
https://www.youtube.com/watch?v=a1DUUnhk3uE
Image Links
There is definitely a math problem in this image. What do you see? Thanks to @Stoodle for pointing this one out.
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P
https://twitter.com/AMillionScreens/status/1192489050248056832
There are an awful lot of streaming options forthcoming: Given a budget of $40, what are you choosing? https://t.co/or2n0d1tLK pic.twitter.com/SpA6OrcJaL— MillionsOfScreens (@AMillionScreens) November 7, 2019
Another one of these algebra questions that is made easier for struggling students by making it friendlier for students.
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P
https://twitter.com/solvemymaths/status/1190916747790102529
So true 😂🤣https://t.co/kCvlEkmxZm pic.twitter.com/OB5do0pZ5P— Ed Southall (@solvemymaths) November 3, 2019
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