Springing from the constructivist philosophy in the 1980's, the 5E is an instructional model that drives curriculum development and models the learning cycle. Using 5E, students can explore a topic, and create their own ideas of what it means. The teacher can then bring the students forward with reinforcing learning, and assess them for comprehension.
The 5E model stands for
Anyone interested in using the 5E model to create a lesson plan may read about it here.