Vol. 2 Num. 1 (1982) David Wheeler Editorial2 David Fielker Communicating mathematics is also a human activity3 Jere Confrey Concepts, processes and mathematics instruction8 Leslie Steffe , Donald Firth , Paul Cobb On the nature of counting activity: perceptual unit items13 Paul Wolfson Philosophy enters the mathematics classroom22 David Wheeler A research programme for mathematics education (I)27 Pearla Nesher A research programme for mathematics education (I)a27 Alan Bell A research programme for mathematics education (I)b28 Caleb Gattegno A research programme for mathematics education (I)c29 Hans Freudenthal Should a mathematics teacher know something about the history of mathematics?30 Alan Bell , Claude Janvier The interpretation of graphs representing situations34 Caleb Gattegno , Arthur Powell , Steve Shuller , Dick Tahta Communication: A seminar on problem solving42 Stephen Brown Communication: Reflections on a letter of acceptance: an effort at communication46 Sandy Dawson Communication: Imagination, among other things50 John Trivett Communication: The clinical interview: a comment51