Did this kid just get excited by a coincidence? Or is there something deeper going on here?
(Thanks Tina!)
Category: 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!
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!
Where did the kid get 48 from? How would you help him, err, not get 48 in the future?