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Math Misery

Problems & Puzzles  - 
 
Apparently it's 5 wrongs that make a right.
We all know the old saying “two wrong don't make a right”. The reason for this, of course, is math. It turns out that WRONG + WRONG = RIGHT has several solutions. But so does RIGHT + RIGHT = WRONG. This is a contradiction! If two wrongs equal a right and two rights equal a wrong, well that's just ...
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Michael Stevens

Technology  - 
 
In my latest post, you can learn how to
• use linear equations to make real world predictions
• organize data in a meaningful and useful way
• use simple commands to efficiently execute a series of calculations in rapid succession
• use reference cells to act as variables that allow you to update a formula without having to change it
• see samples of student work -final product

I hope you enjoy. Feel free to share and comment.
In this performance task, students again organize their information into rows and columns, create a graph, but also learn how to use basic…
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Josh Fisher
owner

Teachers' Lounge  - 
 
I would say that putting the cart before the horse might be the effective thing to do. If I knew, going into a new job, that the company used a 'deliberate practice' model of on-the-job improvement, I would know that I have to think about my work more operationally, and figure out how what I want to accomplish might be measured.
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José Lorenzo López

General Discussion  - 
 
In a certain exercise the sum of the tangents of the angles of a triangle was given, and the product of these three tangents was requested... Many students said they needed more data but Pepe Chapuzas calculated it. Dea...
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Math Misery

Number & Operation  - 
 
A silly puzzle to share with your younger students. There are several solutions. Click the image for a hint. #mathematics
Good ol' Duck, Duck, Goose. I have fond memories of playing this. Kids sit in a circle facing inward, and one other kid is outside of the circle. The kid outside walks around the circle tapping each kid on the head while saying “Duck”. If, instead of saying “Duck”, he says “Goose”, then the kid who got ...
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Josh Fisher
owner

Research  - 
 
The results showed basically no difference between collaborative learning and working individually for the simple-to-complex condition. Oddly, in the complex-to-simple condition, working individually was superior to working as a group. This seems at odds with the research evidence that suggests group work is an effective strategy.
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Daniel Kaufmann

General Discussion  - 
 
Tweaking traditional math questions. 
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José Lorenzo López

General Discussion  - 
 
Teacher, thanks for teaching me how to fly. I gave him back the compliment... I tell Pepe Chapuzas that it was very easy to teach to fly to children who were born with wings... Pepe said goodbye with a gift: a Geome...
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Josh Fisher
owner

Geometry  - 
 
 
Segments,Chords,Angles of a Circle
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Josh Fisher
owner

Teachers' Lounge  - 
 
Education needs to be more like a ratchet – where one professional builds and extends upon the work of another – rather than a constantly spinning wheel.
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About this community

Welcome to the Mathematics Education (K-12) Community on Google+! This is a forum for all stakeholders--teachers, students, mathematicians, researchers, and laypersons. The only requirement is that you have an interest in mathematics education.

Josh Fisher
owner

Teachers' Lounge  - 
 
Dani Quinn is a math teacher at the Michaela School in London. We recently video-taped her lesson and, in watching, I was struck right away by her Check for Understanding. She constantly used Show Me (technique #5 in TLaC) to assess students as she taught and she used that data to guide her lesson. And she...
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Bharati Thakur

General Discussion  - 
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José Lorenzo López

General Discussion  - 
 
Two hyperbolae share their assymptotes in such a way that the two assymptotes separate the four hyperbola branches... Let E and F be the eccentricities of the hyperbolae. Prove that E2 + F2 = E2 · F2 (The two h...
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Josh Fisher
owner

Teachers' Lounge  - 
 
My school has started implementing a whole school approach to learning, based on what cognitive science suggests might be successful strategies. I’ve been working with colleagues on a set of ‘Principles for Learning’ that give teachers and students ...
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LetsTute Tute

General Discussion  - 
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Josh Fisher
owner

Algebra / Pre-Calc / Trig  - 
 
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José Lorenzo López

General Discussion  - 
 
Pepe Chapuzas had drawn something like the blades of a windmill... The callenge was to calculate the sum of the blue angles... Chicho Madeja calculated it... Dear Teacher: BLUE + RED = 5 · 180° = 900° RED + GREE...
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