Definition of "Sideshow" :
noun: a minor show that is part of a larger one (as at the circus)
noun: a subordinate incident of little importance relative to the main event
"Instruction is not an educational sideshow."
noun: a minor show that is part of a larger one (as at the circus)
noun: a subordinate incident of little importance relative to the main event
"Instruction is not an educational sideshow."