The wet corridor

Text 1: Walking This Time, by Harriet Bellows

An original short story extract.

Mr Pike had mopped the science corridor at twelve, and by five past it had become a racetrack. Year Sevens came sliding round the corner on the soles of their shoes, arms out like surfers, shrieking. Mr Pike leaned on his mop and watched. Then he went to his cupboard and came back with three yellow signs showing a stick man falling backwards, and he set them out in a zigzag down the middle of the floor. The sliding turned into a slalom. So he stood at the far end, where the corridor met the dining hall, with his arms folded, and every pupil who skidded towards him had to stop in front of his boots and walk back to the start. ‘Again,’ he said, very quietly, to each of them. ‘Walking this time.’ By the bell the floor was dry, and nobody had broken anything.

Explain two ways Mr Pike tries to stop the pupils sliding on the wet floor.