Introducing systems today. Had the students make 2 lists; one where pairs of numbers summed to 6, and the other with pairs of numbers whose difference is 11. Then asked them to find a pair of numbers that are on both lists.

Absolute crickets.

I had to ask leading questions, give hints, ask them if they had tried such and such. I really had to drag them along before they realized they could do something other than stare at their paper.

So the next period I had them start standing at the whiteboards before I gave them this task. And I did not have to seed them at all. Some were graphing the pairs and realized they made lines. Others were finding the equations of the lines and realizing they needed to find the intersection point. All in all, in 15 minutes I watched the whole class figure out systems of equations. I taught them nothing.

I really feel like when the students are sitting in their desks, they are waiting for me to give out answers and pour knowledge into their brain. But when they are standing at the whiteboards, they take control of their learning. They are willing to try different things, take risks. And they don't wait for me to tell them what to do.

#ThinkingClassroom for the win.

#Algebra2 #MTBoS #ITeachMath #ClassroomMath

Don't count the dots!
Show me how you know the number of dots is divisible by four.
#ClassroomMath

I thought I'd share this. Julia is well-known in the education community, to which she has contributed enormously.

https://www.gofundme.com/f/help-julia-dweck-and-her-family

If you are able, consider contributing, no matter how little. Everything helps.

#MTBoS #MathEd #MathsEd #MathEducation #ITeachMath #ClassroomMath

Don't count the dots!
Show me how you know the number of dots is a multiple of three.
#ClassroomMath

New blog post: 219th Carnival of Mathematics!
https://karendcampe.wordpress.com/2023/09/09/carnival-of-mathematics/
#MTBoS #ClassroomMath #iTeachMath #MathEd

An Illustrative Mathematics curriculum review, diving deep into one lesson

https://fivetwelvethirteen.substack.com/p/an-illustrative-mathematics-curriculum

#classroommath

It's been a long week. We lost a student from our school over the labor day weekend and the atmosphere has been low. Time for a light hearted activity to end the week.

Inspired by Fawn Nguyen's "Vroom Vroom" post on her blog.
https://www.fawnnguyen.com/teach/vroom-vroom

Students measured the pullback distance of a car and then measured the distance it rolled. Graphed the data. Found the line of best fit by eye, then found the linear regression. Made some predictions, calculated some residuals. Summed up all the stuff we've been learning the past week.

I then picked a random distance and groups calculated their pullback distance. Everyone lined up their cars that distance from the finish line, pulled back their calculated distance, and let 'em rip. The group whose car got the closest to the "finish line" (marked by tape on the floor) got bragging rights.

#ThinkingClassroom #ClassroomMath #MTBoS #iTeachMath #Algebra2

Question for my fellow math teachers:

What do you say when a parent tells you “oh math isn’t really my child’s thing, they’ve never been good at it”?

This happened a couple of times at open house last week, once even when their child was with them. I always find myself stuck about what the right way to respond 😬

#ClassroomMath #mtbos

Looking for a fun little game to keep in your back pocket for those days when you have seven random minutes left at the end of class? Let me introduce you to the Game of Sim (invented by Gustavus J. Simmons) that involves drawing lines and avoiding triangles!

https://mathequalslove.net/game-of-sim/

#mtbos #iteachmath #classroommath #classroomgames #mathed #mathsed

Boosting @MsHereth post about using Zearn to #ClassroomMath #MTBoS #iTeachMath #MathEd folks.

https://mathstodon.xyz/@MsHereth/111018222261785854 Math teachers--quick question. Anyone use Zearn? I am experimenting with the free one with my 8th graders but it doesn't include all the IM lessons. Does the paid version have them all?

@hpicciotto @davidradcliffe @benleis
I like this introduction to e from @samjshah , specifically the whole group numerical investigation of e^x vs x^e
#ClassroomMath #MTBoS #iTeachMath #MathEd #MathsEd
https://samjshah.com/2019/04/28/tiny-game-re-eulers-number/

Boosting @ilanahorn thread to the #ClassroomMath #MTBoS #iTeachMath #MathEd crowd!

https://nerdculture.de/@ilanahorn/111013242348274494

@ilanahorn also use #MTBoS & #ClassroomMath

@MrBinfield
Here's my set of messages to students at the start of the academic year.
https://karendcampe.wordpress.com/2016/09/23/setting-the-stage/
#MTBoS #ClassroomMath #MathEd #iTeachMath

Great #geometry question from WIRIS on twX. (Ignore the grammar issue)
Find the radius of the circle.
How would you do this? I've thought of 4 methods... lots of options!
#ClassroomMath #MTBoS #iTeachMath #ProblemSolving

Does anyone have a good resource for finding high-quality assessment questions? Specifically for Algebra 1. #ClassroomMath #iteachmath #MTBoS

Day 4: tessellations of the plane. Working toward the angles of regular polygons and then my student does this… and this is why I teach. #mtbos #classroommath

Problem solving Calendars are BACK!
Just posted the September Calendar of Problems!
Enjoy & let us know any working out you want to share, esp by students.
#MTBoS #iTeachMath #MathEd #ClassroomMath #ProblemSolving #Algebra #Geometry #MathsEd
#MathChat
https://karendcampe.wordpress.com/2023/09/01/september-calendar-problems/

@dylankane Awesome as always!! Thank you!
#ProblemSolving #MTBoS #ClassroomMath

@jclevelandtran @j_lanier
James, do you mean something like this (1st image of carpenter's square) Because I feel like we could ignore the other side and use one leg as the double-sided straightedge.

Or if you mean the right angle triangle (2nd from top in 2nd image) it would be trickier because you don't have a long stretch of parallel lines... but I think still possible.
#geometry #ClassroomMath