To Insert a New Slide in a PowerPoint Presentation:

• Choose the thumbnail of the slide that is directly before the location you would like to insert a new slide.
• Choose the Home tab on the Ribbon.
• Click on the top section of the New Slide option if you would like to add a slide with the same layout as the slide you choose in the first step.
• Click on the bottom section of the New Slide option if you would like to choose a new slide layout from the Slide Gallery.
• Choose a Slide Layout.  A new slide will be added directly after the slide you chose in step 1.