ClassDojo - Communication
If you don't already have it, grab the app!
Hopefully by you getting to this site, you're familiar with this already. :)
Freckle - Math Practice
Students have their own login and password for this.
Homework for Families - Reading EL homework information/samples
Quizizz - All Subject Practice
No username or password required.
Students can search for ANY style practice quiz to take. You may want to monitor this one because there are thousands upon thousands of quizzes they can take but they aren't all about school topics. :)