Rationality 101 - how would you introduce a person to the rationalist concepts? What are the best topics to learn/​explain first?

How do you think cur­ricu­lum of ra­tio­nal­ity 101 should look like? I want to make a brief course(a se­ries of short an­i­mated youtube videos), ideally on the level ac­cessible to a nor­mal 14-17 year old per­son. Can you help me to make the list of con­cepts I should start with?