EducationNationalVOLUME 21 ISSUE # 22 In a modest classroom somewhere in Pakistan, a science teacher stands before a blackboard, carefully sketching the structure of an atom. The students copy it diligently into their notebooks, line by line, curve by curve. There are no models to hold, no lab to test hypotheses, no experiment to bring the invisible world alive. The atom remains what it has long been for generations of Pakistani students — not a discovery, but a diagram to memorise.