Sometimes you want the same text to be on all the slides in your presentation. To accomplish that, you need to put the text on the Master Slide. To start this, get the Master Slide in view by using the View menu and choosing Master --> Slide Master.

Here is the Slide Master. You can click on any of the text and set the font properties, or add text to one of the footer boxes.

Here, the text, "TEDUC 566 PowerPoint Post Test" has been added to the Master Slide.

Here is what the a slide looks like with the text on the Master Slide showing.