https://www.plickers.com/ I learned about the website plickers.com from a group member. I think this would be a great way to get a quick assessment of the learning goals. Additionally, this one is great for students who are not able to bring their own devices. I will be exploring it further.
I'd like to add that I am also learning about Edmodo through this professional development. I had not previously used the site, and I am learning!