Mr. M Sumner
@sumnerdmath
High school math teacher. Basketball coach. Physics lover. Thor and Coulson believer. Views expressed are my own.
I was recently asked this classic question: If 0 is at the left end and 1,000,000,000 at the right of this line, where should the dot representing 1,000,000 be located? I love this question but am also fascinated by the wrong answers and what sort of thinking they reveal.
New TikTok video: What is the Japanese multiplication method and why does it work?
Look for math resources that get students to think and build number sense.
Headin' to Vancouver this week 🏔 RETWEET for a chance to win a @Stmn_Willie_Bmn jersey courtesy of @kaltire. #ForTheW
As The Queen's Committal Service comes to a close, Her Majesty's Piper plays a lament.
Back in the 🔨 for the first time since you know when... 🏆 Retweet for a chance to win a @Stmn_Willie_Bmn jersey courtesy of @KalTire. #ForTheW
New TikTok video: Did you know you can subtract left to right?
Off to enemy territory this week. RETWEET for a chance to win a @Bighill44 jersey courtesy of @KalTire. #ForTheW
Who wants a @Bighill44 jersey?! RETWEET for a chance to enter our @KalTire jersey giveaway! #ForTheW
Get yourself a @Bighill44 jersey❗️ Retweet for a chance to win a new uni courtesy of @KalTire. #ForTheW
New TikTok video: Laws of exponents and why they work
I was in a Grade 9 class on Friday and gave them this task which gave them lots of opportunities to show their algebraic thinking. More details in this blog post: themathguy.blogspot.com/2022/02/a-nice…
That moment when you realize that Wordle is an open middle problem. The beginning and ending are closed because everyone starts with the same problem and ends with the same answer. What's open is the middle because there are so many ways to solve it.
Merry Perihelion to planet Earth. 147,105,050 kilometers from the Sun In our annual oval orbit, today we are closer to the Sun than at any other time of the year. But not by much -- about 3% closer than at Aphelion, our farthest distance from the Sun six months from now.
Going to give my students the 2022 Challenge tomorrow. I haven't done this yearly number challenge since 2019 when the choice of digits was a bit nicer. It will be interesting to see how many we can find! #mtbos #iteachmath #teach180
Perfect example of a subject often misunderstood as being memorization and mimicry when it is really about creativity and connections. #thinkingclassroom
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