It is important to review tools for effectiveness and stay organized. I Also feel that sending a Welcome letter and best wishes letter at the end of the course is important. I always implement those letters. Also on the first day of school i have a Welcome powerpoint presentation that allows me to introduce myself to the class an tell them a little bit about my educational background. I then do an ice breaker to help them get to know each other. 

There needs to be clear instructions for the students. If several students are scoring low it is important to check why and address the issue so the student get the most of out the lesson with the best understanding. 

Communicate is a huge part of student understanding cirriculum and succeding in the course

There are many different online tools out there to be used by instructors to engage students. We are consistantly trying to come up with the most fun effective ways to keep our students engaged