how to do presentation

https://blog.hubspot.com/marketing/easy-powerpoint-design-tricks-ht#sm.0000syeyp83y9cy7zbu11oim8zgvj
http://www.skillsyouneed.com/present/presentation-tips.html
http://www.wikihow.com/Do-a-Presentation-in-Class
https://www.youtube.com/watch?v=dEDcc0aCjaA