Apps for word and text processing software that come with Mac OS X have a method for creating superscripts: an elevated font style frequently used in exponents in math functions and scientific symbols, and to refer to footnotes from the main body of a page. With slight variations, the superscript technique applies to Pages, Notes and Stickies.
Start the Pages app by clicking its icon in the Dock.
Choose a blank document and enter some text in it.
Highlight the text you want to change to superscript.
Click the Format menu, select Font, click Baseline, then click Superscript. Pages converts the highlighted text to a superscript.