Power Point is a software used to create presentation aid used for demonstration, teaching in seminars, class rooms, meetings etc.

Insert New slide:
Home tabe–>slides group–>New slide
(or)
ctrl+M

Layout
it is giving an idea of how to design a slide by inserting some pre-defined objects.

change layout of existing slide:
Home tabe–>slides group–>layout

Add content to slide:
Insert tab

start slide show:F5

start slide show from current slide: shift+F5

exit slide show: Esc