Describes learning to teach as a task involving learning to think and act in ways appropriate to the profession's demands. Describes the language of practice, using common sense and practical analyses of knowledge and action. Illustrates these concepts with a study of student teachers and applies architecture's pattern language to teaching.…

This document describes the contributions of African peoples to the science of mathematics. The development of a number system is seen as related to need. Names of numbers, time reckoning, gesture counting, and counting materials are examined. Mystical beliefs about numbers and special meanings in pattern are presented. Reproductions of patterns,…