Years ago when I was teaching Seminary, I had a great Principal who, when the students were leaving my class, would take a student by the arm and say, “Hey, what did you learn in there today?” Being in earshot I would pray the student would say one of those life changing principles, and that it sunk in.
This graphic represents two students walking away from class, and thinking and considering how they are going to implement what they learned. The one is saying to himself, “I’m going to…” and the other’s testimony of a doctrine has grown because they are saying, “I know that…”
Try it with your students. After a lesson, hold up the graphic and say, “Complete the sentences based on today’s lesson.” If they can do it, you know the lesson just might have sunk into their hearts, and will change a life.