Not too long, not too fast Or may have a vacation for some students. To reduce tension between the classes. If you follow this instruction will help better .
Not too long Not too soon, or there may be a range of relaxation for students to study and reduce stress during the freeze. If you follow this will allow better education .
Not too long, and not too fast. or it may be some time for students to reduce the stress stretch between classes if you do this will help you to the teaching better.