Over the past couple weeks the older students have been studying infectious diseases. Thus far they have completed two hands on experiments. In one experiment they simulated spreading the common cold among students in the room and they experienced first hand how quickly an infectious disease could spread. In the second experiment they learned the role a carrier plays in the spread of disease and solved a logic puzzle to track down the carrier and test them for the disease. As the unit continues they will conduct research on specific infectious diseases and present their findings to the class. The students have been very engaged in this unit and their willingness to conduct the experiments has made this class very enjoyable to teach.