If you have a student that can't manage their "paper school calendar" or if you are a family with multiple calendars.... you need to visit Google Calendar Tools and consider how effective it will help your family become; saving time and managing time well is one of the most valuable tools you can teach and train your family. Good Luck!
www.creativetutors.com

From http://www.google.com/intl/en/googlecalendar/tour.html

Organize your schedule and share events with friends
Wouldn't it be great to be able to keep track of all the events in your life, coordinate schedules with friends and family, and find new things to do -- all with one online calendar? We thought so, too. Learn More

Seeing the big picture
With Google Calendar, you can see your friends' and family's schedules right next to your own; quickly add events mentioned in Gmail conversations or saved in other calendar applications; and add other interesting events that you find online.

Sharing events and calendars
You decide who can see your calendar and which details they can view. Planning an event? You can create invitations, send reminders and keep track of RSVPs right inside Google Calendar. Organizations can promote events, too.

Staying on schedule
You can set up automatic event reminders, including mobile phone notifications, and instantly bring up anything on your calendar with the built-in search tool.