Nostalgia about blackboards in classrooms
For the previous generation people, they can't imagine a school/college classroom without a blackboard. The smell of the chalk and the use of duster to clear the blackboard all mesmerizing me to my earlier school days. It is of course a "Nostalgia", and I am sure that most of the older generation have many memories/experiences about the blackboard.Now a days, blackboard is replacing digital boards in the modern digital world. Blackboard Certified Practitioner in Digital Teaching and Learning is a course which teaches the use of digital blackboard and there are many such courses.
Even though digital blackboard resembles the look of a school blackboard, it cannot replace the old blackboard. Expecting the memories from other members about the old blackboard in your school days.