formal communication should be used for speeches or at work
A pitch is a short presentation that is given with the intention of persuading someone (a person or company) to buy or invest. There are various forms of pitches, depending on the goal and intended outcome.
PowerPoint has different types of Slide Layouts. Depending on which type of presentation you make, you will use more or less different slide layouts. Some Slide Types are: title slides, section heading slides, picture with caption slides, blank slides.
Internal summary means to remind listeners about the major points which were already presented in a speech before coming to new ideas.