It seems that any student that has issues in class, lacks the confidence to try for fear of failure. In those situations, I will stand with them, urge them to push the button - and fail or succeed, once they realise that the world did not end, they learn something. I am not one for just giving an answer. I try to present the thought process, allowing students to problem solve each small question. Then, as the light comes on, I stand back, let go of the bicycle and they find they are riding by themselves. I then point out how little I presented in the way of answers - that they figured it out themselves - that is when they get excited - they feel a success.