Abstract
While considerable attention has been focused on forms of teacher knowledge
(eg. Shulman, Elbaz, Petersen, Carpenter et al) as essential components of
expert and effective teaching, but knowing-that, knowing-how, and knowingwhy
are insufficient to enable a teacher to act upon that knowledge. What is
critical is that teachers know-to act in the moment-by-moment unfolding of a
mathematics lesson. We distinguish different types of knowing, and following
Gattegno, relate these to levels of awareness. Our methods use descriptions
and illustrations such as a fine-grained study of one teacher involved with
innovative materials for teaching algebra to 13 year-olds to help the reader
experience distinctions which we have found fruitful. Furthermore, the
situation is self-referent, for what we want children to learn is to to know-to
act themselves when formulating or solving problems. Drawing on the study,
on our experience, and on the experience of others, we move towards a
psychology of how knowing-to arises and can be supported.
.lohn Mason and Mary Spence
Towards A Psychology Of Knowing-To