If your Chromebook seems to be running slow or not working properly, it can often be fixed with a good powerwashing! Follow the directions in the link above to help clean up your Chromebook and get it working up to speed again.
Consider your Schoology homepage like walking into the school building. You will see announcements, important dates, and updates from your teachers and administrators. When you go to a course in Schoology, it's like walking into that teacher's classroom. You will see a weekly agenda, assignments that are due, extra resources to help with your work, and a messaging tool to talk to your teacher directly. Make sure you are checking Schoology every day so you don't miss out on anything important happening in your class!
If you are having trouble logging into Schoology, click the link above for information about Schoology outages and when you can expect it to be up and running again.