Have you ever wondered how does day and night occur?
Well to know this, learners of Grade 1 were shown a practical using globe and a torch. The room was darkened and the light was thrown on one side of globe. Here they saw when torch(Sun) lighted one part of globe(Earth) then it was day in that region whereas the other side was dark which meant its night there. Earth’s rotation causes the occurrence of day and night. This practical constructed their understanding of occurrence of day and night.