A senior Geography teacher in one school in the Eastern region would introduce new Form Five classes to the subject in a brilliant way. He would take them on a short excursion to a spot where the Nyambene hills and the rolling Isiolo plains were visible in one direction and the peaks of Mount Kenya, in the other.
He would tell his learners to join the snowy peaks of Mount Kenya and the Mediterranean Sea, far beyond the visible but gentle curvature of the earth in Isiolo plains, with an imaginary line. "All climatic zones of Africa lie along that line," he would famously declare.