A tool I've used in the past, but only really recently started digging into is Quizizz. Quizizz is a fun assessment tool that has a signature of using Memes to keep kids engaged. It has great potential for giving feedback to your whole class. I was in a classroom recently where we used Quizizz. It gives you some quick data about questions that kids have mastered and concepts that are students still need practice with. What we did is stop, do a quick lesson about the most missed questions, then retook the assessment. Quizizz jumbles questions and answers which is really nice for reassessing. You can immediately see who did better because of the reteaching, and those who may need additional support or intervention after the second go around.
I think there is some great potential for doing this regularly as a way to quickly assess specific small topics in classrooms. Quizizz works well on tablets and Chromebooks.
Instructional Technology Coach