You have done well OP. This is a catch them young scenario. At this age they can be able to assimilate the bitcoin technology very fast because they are of age and can flow as it is worth learning. Since it was your first time I know the tensed pressure you must have experienced while imparting the bitcoin knowledge on them. Looking at the students, they look eager and interested in the topic and the technology they look aroused and their attention all focused on the teachings.