WhatsApp is a smartphone application for instant messaging. Lately the application's popularity has risen. One of the unique features of the application is its ability to enhance communication within a group. Classroom communication between teaching faculty and high school students using WhatsApp has not yet, to our knowledge, been researched thoroughly. Therefore, we have chosen to conduct an exploratory research project employing a qualitative method. Twelve half- structured interviews were carried out with teachers who use the application in order to communicate with their pupils.