The informed vision; an essay on science education.--Mind and mechanism in education.--Childhood and the education of intellectuals.--I, thou, and it.--Messing about in science.--The bird in the window.--Two essays on mathematics teaching: Mathematics, practical and impractical. Nature, man, and mathematics.--Development as education.--On environmental education.--John Dewey revisited.--On living in trees.--On understanding the understanding of children.--Human nature and the scope of education.