I have found that the use of aides draws interest in a lecture by showing with a subject that is being discuss. Student tend to bring up more questions,do you agree this method is good or does serve as a crutch?

Sometimes we find ourselves drifting away from our objectives. Things in are lectures seem to slow down become dull just going through the motions, we even bore ourselves, this is passed onto our students.That when we need to motivate ourselves open up for discussion with student and teacher.