Assessment Resources

I'm always on the hunt for new websites to use with my students. I've been specifically looking for common core and assessment resources ('tis the season, right?). Now that the applied-skills portion of our state test is over, I'm looking ahead to the multiple choice tests that come next. 

Prepdog.com is a website with printable quizzes for math, reading, language, and science. They come in different levels, and the website also has tutorials and lessons too. There is a store link, but most of the resources are FREE. It's definitely worth checking out.

Do you have any favorite free assessment resources to share?