Solution:

1) Create a button or insert a clip-art image to use as a button:

a) Select the desired symbol for the button (i.e., square or circle) from the 'Drawing' toolbar.
b) Drag the mouse on the presentation until the button is the desired size.

2) Select the button just created or inserted.
3) Select the 'Tools' menu and select 'Interactive Settings...'. (The Interactive Settings dialog box appears.)
4) Select the 'Go to' radio button in the 'Action On Click' group.
Go to radio button
5) Select 'Slide...' from the 'Go to' drop-down list. (The Go To Slide dialog box appears.)
Select Slide...
Go To dialog box
6) Select a slide to branch to from the 'Slides' list.
7) Click 'OK'. (The Interactive Settings dialog box reappears.)
8) Click 'OK'.
9) To return to the original slide after branching, follow steps 1) through 8) to create a button on the branch slide that branches back to the original slide.