The text editor (sometimes referred to as the ‘HTML editor’ or even ‘Atto’) has many icons to assist the user in entering content. Many of these icons and functions should be familiar to anyone who uses a word processor. Some examples of where you will see the text editor include editing section headings, describing an activity, writing an answer to a quiz question or editing the content of many blocks.
From Moodle.org Read More about the Atto Text editor
NOTE: When in doubt of what a tool does hover your mouse over it–if you hold still, a tool-tip will pop-up with informative text!
A huge part of using the text editor is text. Without this tool no formatting could be easily applied by anyone except those with HTML and CSS knowledge. The buttons available on our Atto HTML editor have been arranged in order based on a mixture of frequency and accessibility.