Infuse Learning for formative (and summative) assessments - easy and free. And good, too...

I have mentioned Infuse Learning in a former entry, but wanted to call out the Build Quiz feature.

You can use Infuse Learning for simple classroom Q&A for instant results, or build your own quizzes with multiple question-type options.

Again, students do not need to log in to create an account. They simply go to student.infuselearing.com and enter the classroom code in the upper left corner of your teacher page.

Here’s a pretty good/quick tutorial on the capabilities of this easy-to-use teacher and student interface