This tutorial will show you how to setup a Gmail account on your iPad.
First, locate and press the "Settings" icon. It may be on a different screen or in a different location than shown here.
Then select "Mail, Contacts, Calendars"... then "Add Account".
Then choose "Gmail".
Enter the Name, Email address, and Email password of the Gmail account you're adding.
A "Description" will automatically appear, but you can change it if you like. When finished, press "Next"
Success! The Gmail account has been setup on the iPad, and you can see it here listed under "Accounts".
Let's return to the home screen by pressing the Home button on the iPad. To check your email, press the "Mail" icon here (Note: the icon may be in a different location on your iPad)
If you have multiple email accounts setup in your iPad, they'll all be listed here. Select the Gmail account we just setup...
... and any emails in your inbox will be displayed here.
That's it! You now know how to setup a Gmail account on your iPad.