What are some of the best methods of teaching people new concepts or new ways of thinking?

Involvement and participation through2-way interaction and collaboration

explain the concept in the easy word try to connect with past try to demostrate.use pp presentation if possible use charts picture practicles.teacher should have to think that what ever we are teaching first time mostly  they are new concepts.

Discussion and demonstration.

• Let them trust you
• People must understand the general idea in 1 line
• Let them love your new concept and believe in it.
• Make them practice it on everyday a little until it becomes a habit.

be simple. also listen to this story i always remember it:

https://www.youtube.com/watch?v=4gxcwRfeOGk  

teaching is an art, most important thing, how much you have knowledge and how can u deliver, means it should be understandable to the students. in other words, new knowledge and way is both complusory 

Lead by example 

This depends on the following :

- level of education of these people

- the type of the new idea / method of thinking

- how much is it applicable to their life

The methods can be

- case prsentation

- group discusion

- lecture