What makes online teaching effective? We have been asking ourselves this question not only since Covid-19 outbreak – in fact, we have been racking our brains over it at IIT for many years. Thanks to our part-time degree programmes “Mobile Software Development” and “Software Design” we are able to draw on previous experiences in online teaching. Nevertheless, every online unit is a challenge and we always find ourselves pondering on the following question: Does teaching English online make sense or not? Our answer is: YES and NO. It has some pros and cons.