For me was very useful to know how approaches have changed as years went by, and how they had to change and adapt depending on the situation of the world and the new research done by psychologists and linguists. I think it will take time to understand well all of them, because they have many aspects and some of this aspects are still used today. I still have the same question Can you mix activities from different approaches? It seems that the answer is yes, because I have notice myself mixing activities, but I think that the most important thing is to have clear what is your final goal, what are you teaching English for. I'm certainly that the most important aim is to communicate, in our globalized world we need people to be able to speak and understand at least one more language; because, as Gardner says in his book "Five minds for the future"......"Without at least one discipline under his belt the individual is destined to march to someone else's tune"
So to prepare our students for this coming future they have to master a discipline and knowing English will help. That's why we teachers have this huge responsibility.
I enjoyed watching the videos, each approach was much clear for me, I would like to have had more examples supporting the theory in classes, for me it hasn't been easy to differentiate them and how to develop a critical thinking about it, because to me each approach was succesful in their time, of course now we can't apply them exactly the same, but why some activities are still useful?
I would improve "beginning from the very beginning", perhaps a little bit of history of each approach and how it evolved; of course we read it but to me is necessary to comment more and catch my attention to some points that sometimes I don't realize are important. Also I would have liked to learn in class the steps to criticize articles or research.