Den Rattee
@DenRattee
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math teacher turned math coach. juggler, cyclist, racquet sport enthusiast, player of many games #MTBoS #iteachmath
Calgary
Joined February 2011
Sounds like an oxymoron, but let's make sure doing algebra is algebraic thinking! (eg How do you know the sum of any five consecutive integers is sure to be a multiple of 5? Is the sum of any six a multiple of 6? When is a sum of k consec integers sure to be a multiple of k?)
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In the end, we need kids--as many kids, if not all--to fall in love with mathematics. That is the endgame. Not higher standardized test scores that don't even measure anything worthwhile. Mounds of data is meaningful if the test is...
Why I fell in love with monster prime numbers (Adam Spencer | TED2013) https://t.co/HTaLb8TcMg via @TEDTalks @MVPSchool @treyboden @chrisandres003 @_robinmatthews @ChipHouston1976 17 minutes amazing one liners make math transdisciplinary and relevant and FUN. come into geekdom
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🎉🍰🤸♂️ Get wild, y'all. We just released a 🚨 FREE SCIENTIFIC CALCULATOR APP 🚨 for ... (1) iOS - https://t.co/uilSIhPDcT (2) Android - https://t.co/MWr5d9lg7m (3) Kindle - https://t.co/HpUy0pOK07 Get 'em!
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The article is great!
What are students thinking about maths in the 2 activities in this film? Please share with any teachers still using timed tests. They are the beginning of maths anxiety for so many. The cool activity that is featured in the 2nd part of the film is in here: https://t.co/lwJOTKPeWB
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So...I found this just now and now I'm hooked. I gotta find time to play today!
The task we'll be considering this Thursday - selected and presented by @mdawesmdawes - is taken from our Primary Points of Departure. https://t.co/HdM0k5SIIW … We invite you, if you can, to look at it before the chat. #beingmathematical
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It’s time for the #9PMRoutine. Have you checked for suspicious activity around your house? Leave an outdoor light on so that thieves can’t hide in the bushes #yyc
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Measuring, counting, creating bar graphs and comparing quantities and length in @symackenzieBP and @benningerbp classroom in @BelParkCBE #cbemath
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(1) Teachers should prepare with purpose for their lessons. (2) Students should understand the purpose of their work by the end of class. Neither of those goals requires posted objectives at the start of class.
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Si on utilise les nombres de 1 à 10 et les 4 opérations mathématiques (+ une opération qui se répète) quelles équations donnent le résultats de 21,2,3,2 , 17? #vnps #buildingthinkingclassrooms @pgliljedahl @ArsenaultAmelie #collabcepeo
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An example of a question that we explored this week: how many dots are there, and how do you know?
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Is it better to solve problems in isolation or by collaborating with others? Harvard research says . . . neither. The best solutions come from "intermittent collaboration" -- group work punctuated by breaks to think & work by ourselves. https://t.co/hekSLI536Y
news.harvard.edu
When solving problems, both groups in which members never interacted and groups whose members constantly interacted provided expected results. The surprising outcome came from groups whose members...
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If you teach physics to 11 to 18 year olds then you absolutely need to get hold of a copy of Ben Rogers' superb new book "The big ideas in physics and how to teach them": https://t.co/9DxruFOaFZ. And that's not just my opinion. John Sweller describes it as "brilliant". Nuff said.
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This is the kind of dangerous, journalistic propaganda that undermines any efforts to humanize math education. Since when did the fringe become so emboldened to spread their limited understanding of mathematics? @d_martin05 @BurdessAlicia @evaferguson2
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Have a hard time w self promotion (here goes!) but I do want to say that something is afoot w @TheGreatCourses Power of Visualization in Maths. Been receiving a spate of uplifting lovely emails about it. Thx! This, of course, is my take on how math can be. https://t.co/psxkptXsCR
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Yes!
The **holy trinity** of theories should be a staple in every K to 5 curriculum. Coloring, scheming, and patterning is right in the wheelhouse of every child. No kid ever got excited about mathematics by learning something like multiplying decimals or dividing fractions...
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"Memorizing rules in mathematics is like memorizing lines for a play in a language you don't understand " - @mathforlove #mcata #mathchat
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Practical strategies to improve facilitation of class discussions https://t.co/bSNyD5BiY5
#cbemath
edutopia.org
Techniques for fostering meaningful class discussions by getting even reluctant students to share their insights.
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