It was a hands-on lesson for these schoolchildren.

They could gain knowledge about botany in the classroom, but there is nothing like seeing nature in the flesh.

These pupils at Lawn Upton School at Littlemore, Oxford, were lucky — they had plenty of trees and plants in the school grounds for them to inspect.

Acting headmistress Miss EA Rufey is pictured with some of the children in the school's natural surroundings.