My high school Economics teacher used PP slides (which resembled 'university-style' teaching so to speak).
PP slides were a short summary/skeleton of the textbook and basically aimed to directly address the syllabus dot-points (which were stated in the beginning of the power-point).
They also aimed to provide some contemporary examples (not found in the textbook) and some updated statistics (since the textbook tends to lag behind by 6 months or a year in terms of statistics, even if it's the latest edition).
After going through the slides, we would answer questions or worksheets (either from the textbook, past paper questions and elsewhere).
From time to time, he assigned essay questions to be done in class or at home and subsequently, giving feedback on them later.
Sometimes, he'd show us videos (which were relevant to the topic of that class) or news items.
Another element was encouraging class discussions and group work, when appropriate.
If I was an Economics teacher, I'd probably do the same thing. I think it was the ''perfect'' way of teaching Economics.
He also encouraged people to do the essentials of Economics (comes down to content preparation and exam technique):
- Note-making
- Making stat summaries
- Frequently do practice questions
- Essay plans
Another system he implemented was Edmodo. He frequently made us do online MC quizzes on it (mainly in-class) and posted up relevant news articles. When it was nearing assessment periods and the HSC, we could ask him last-minute questions on it too.
Funnily enough, he had only been a high school teacher for only around 1-2 years, from memory, when I first had him in Year 11 (had him in Year 12 as well). Yet, he was probably the best teacher I've ever had and I enjoyed every single class of Economics (that being said, it was my most favourite subject too).