There are many excellent teacher forums. The address book allows you to store other people's Email addresses. The Composer allows you to send an Email message. The history list tells you the recent websites that you have visited. By using the history list, you can easily return to a previous page.
Every web page has links.
A link takes you to another page or website. Look for a word that is a different colour from the text. When you click on this word, you will go somewhere else. To return, use your back button at the top of the page. After you click on a link, it will change to another colour.