Characterizing Pedagogical Flow

An investigation of mathematics and science teaching in six countries
Schmidt, William H. Jorde, Doris Cogan, Leland S. Barrier, Emilie Gonzalo, Ignacio Moser, Urs Shimizu, Katsuhiko Sawada, Toshio Valverde, Gilbert A. McKnight, Curtis Prawat, Richard S. Wiley, David E. Raizen, Senta A. Britton, Edward D. Wolfe, Richard G.
Kluwer Academic Publishers , Dordrecht (2002)