Because of the importance of laboratories in understanding the practical side of the theoretical material, the teaching staff of the Department of Engineering of air conditioning and cooling techniques to establish successive workshops for laboratory supervisors such as heat transfer laboratory and fluid mechanics - control laboratory and the theory of machines - the laboratory of heat, air conditioning and cooling. Where many of the points were discussed, including how to prepare the laboratory and measuring devices such as pressure and temperature measurement and mass flow and calibration. Teach students how to write experiences, view the device for each experience, and start discussing the results and drawing the charts<br />