Categories
Area Expressions & Equations

Area, Rectangles, Variables

chris shore (1280x850)

Chris Shore passes on the above, and he thinks that things just aren’t clicking for this kid. I’m inclined to agree. What would you all recommend? What’s the next step for this kid?

Categories
Distributive Property Expressions Expressions & Equations

Distributive Property, Again!

photo (6)

 

What task or problem would you have this student attempt? Or would you follow this up with an explanation?

Thanks to John Weisenfeld for the submission!

Categories
Distributive Property Expressions & Equations

Another awesome Distributive Property mistake

distributive property

We actually have an explanation from the student, and hopefully Alison Royster will be kind enough to jump in on the comments and provide it.

Categories
Expressions Expressions & Equations

Order of Operations

IMAG0247

 

How would you help this student?

Thanks to Chris Robinson for the submission.

Categories
Feedback Statistics & Probability

The most interesting histogram ever.

What does the student understand, and what doesn’t she?

Say something intelligent in the comments, and then head over to James Cleveland’s place, for the submission is his.

Categories
exponents Expressions & Equations

“Prove that 5^0 = 1.”

Categories
exponents Expressions & Equations Middle School

Exponents – Positive Integer Powers

Thoughts?

(via Chris Robinson)

Categories
Area Decimals Geometry Middle School Multiplication Perimeter and Volume

Area of Walls

What’s the mistake? How can you help the kid?

When you’re done with this post, go check out Mary Dooms’ blog and go follow her on twitter. Thanks for the submission, Mary!

Categories
Feedback Negative Numbers The Number System

Negative Numbers

What’s something that interests you about this student’s work?

Another quality submission from John Weisenfeld.

Categories
Arithmetic Distributive Property Expressions & Equations

Distributive Property

What does the kid think the distributive property is?

It’s easy to say: “Well, I’d avoid this mistake in my class by teaching the distributive property correctly.” Well, what’s the wrong way to teach this thing, then? What’s the smartest possible way to teach this, and still end up with your kids making that mistake?

After you’re done writing an awesome comment to this post, go check out Josh Weisenfeld’s blog. He spotted and submitted this gem of a mistake.