How to Create a PowerPoint 2013 Slide Transition
Move to the slide to which you want to apply the transition.
Note that the transition applies when you come to the slide you apply the transition to, not when you go to the next slide. For example, if you apply a transition to slide 3, the transition is displayed when you move from slide 2 to slide 3, not when you move from slide 3 to slide 4.
If you want to apply the animation scheme to all your slides, you can skip this step because it won’t matter which slide you start from.