When you are sick, the first thing to do is seeing a doctor. Doctor asks you a bunch of questions, studies your symptoms, and, eventually, prescribes you some medicine that will help your body to defend itself better and faster. Everybody know that the same medicine is not gonna work for other illnesses and other people.
The point that I am trying to make is that using other techniques rather than lecture are good but are not gonna work for every subjects and every student groups. For instance, a math teacher or a physics teacher must first give a lecture about basic rules and subjects and then ask students to solve problems or teach the consequent subjects using PBL technique.
I found “Four things lecture is good for” so interesting with precious points. I believe that a teacher responsibility is not only teaching the course materials, but also give students a pinch of her/his vast information about related subjects. Sometimes just ten minutes talk about a new subject could amaze a student in a way that changes her/his life path for ever.