I just passed back a couple of quizzes to my 1st period class. (Note: is everyone as bad at passing back papers as I am? I get stuff graded pretty promptly, but then they sit for weeks until someone asks.)
One of the boys who normally does ok totally killed the quizzes. And I mean like both were 100%. A girl setting next to him was like, "Wow! You did awesome!" I agreed with her. His response was amazing to me.
"It was the MathXL."
He went on to say that he really liked the program; he liked how he got the instant feedback on whether something was right or wrong. This is a kid who (when I assign bookwork) tries to finish it as we're starting class... and obviously doesn't check his answers in the back of the book.
I decided for this last unit (limits) that we weren't going to use the MathXL program. There are too many kids in and out for various reasons and may not have computer access. I'd actually been considering whether I wanted to use it next year or not... and had been leaning towards no.
This may change things.
PS - It's May!!!