It is a model that can be used as a format for structuring lessons that allows people to learn through an inquiry-based process.
Engagement usually involves learners in a thought-provoking or discrepant event.
Often, the engagement step helps learners become aware of their preconceived ideas about a given concept. In this stage, the teacher helps learners draw conclusions and form new ideas based on their observations and the patterns that surfaced during exploration. Students are expected to explain their thinking and reasoning orally or in writing. The teacher helps learners solve new, related problems.