How to Improve a Lecture

There is no one right answer here. The best way to determine if a lecture is the best option is to test it out yourself with your students. Teach one chunk of your material in a lecture and another through some other method like a reading, a constructivist activity or a project based task. Then see which method resulted in the most enduring learning. Or if you teach several sections of the same class, use different methods in different sections and see what works best.