Testing engine
think of the way you have spent on making appropriate tests for your students.
Flexible user organization
also one of the important things- the organization. As we live in a modern world with that much obligations and little time for them to be done, a tool for organizing us better is a good choice
Multimedia lessons
one of the most important things. Since the students seem to be lacking enthusiasm more and more, something has to be done to bring them back to the classroom. Imagine how they will react to exploring the underwater world actually from underwater but from their classroom
Adaptable learning curve
testing to learn into action! If the students are actually involved in the process of learning, that is the best way of teaching.