Spell Check in the Chrome BrowserThe first is the simplest. If you are in Google Chrome, their is an automatic spell check in the browser.
If you spell something incorrectly, it will be underlined in red.
You would then just right click on the misspelled word and select the correct spelling.
Spell Check in GMailYou can also spell check in the compose window.
Click on the triangle by the trash can in the bottom right corner.
Select "Check spelling"
The misspelled words will be highlighted.
Click on the misspelled word and select the correct spelling.