Did this kid just get excited by a coincidence? Or is there something deeper going on here?

(Thanks Tina!)

- Post author By mpershan
- Post date May 5, 2013
- 3 Comments on Rational Expressions

How would you help this student?

Another thought: would this student have made this mistake at the beginning of the problem? In other words, is this mistake more likely to happen as the problem goes on than at the beginning? If so, then what does that say about problem-solving?

Thanks to Anna for the submission!

- Post author By mpershan
- Post date November 15, 2012
- 2 Comments on Negatives

What’s going on in this (reconstructed) student work? Tell a story in the comments.

And then go thank Christopher Danielson for sharing this stuff.

What’s the mistake? Diagnose the disease, and find the cure in the comments.

Thanks to Anna Blintsein for the submissions. Go follow her on twitter!