HTML Tags generally come in pairs, a start tag and an end tag. A start tag looks like this:
. This tag means start a new paragraph. An end tag looks like this. This tag means end your paragraph.
Tags are placed before and after the text we want to wrap, so if you wanted to make a paragraph you might write:
<p>Here is my paragraph</p>
When you place a start tag i front of a piece of text, and and end tag after, the whole construct is known as an element. Writing HTML is a process of sensibly splitting your content into elements using tags.
This exercise is just about getting something working in a browser.