KIndling interest and curiosity should of course be the mainstay of any teaching-learning program. Besides these, I think our education system, as a whole, does not seem to train students in making use of “common-sense”. While using any equipment or method, we simply go by the ‘instructions’ provided, ignoring that there are many ‘small’ things that are to be understood by reading ‘between the lines’. These small common-sense things also need to be taken care of. Common sense is. of course, the most important component in our daily life. However, it is equally important, if not more than the ‘technical knowledge’, in undertaking research in science. Small “do’s and don’ts” can make a whole lot of difference in the way experiments are planned, carried out and interpreted, besides taking care of the increasing environmental pollution that our contemporary experimental procedures etc cause. Learning ‘common-sense’ is not limited to class-room. This is learnt, as the phrase itself means, in our daily life, if we remain conscious about it. This is where teachers and family come in the picture.