It is about one hour long.  Start and stop as many times as you would like.  You can watch section by section or watch the whole thing in one sitting. 

This online class can be done completely on your schedule.  After the kids go to bed?  Yes.  All in one weekend?  Yes.  Over a lunch break?  Yes.  It is designed to fit your schedule.

This course is background information for you.  You will surely use the information when helping your child with homework but there is nothing mandatory you need to do with your child and submit.

You will find a list of suggested physical and virtual math manipulatives included in the course but none of them are mandatory.  The most important thing you need is a piece of paper and a pencil.