Hypothetical Learning Trajectories

Douglas H. Clements

Volume 6, Number 2, 2004 Contents: D.H. Clements, J. Sarama, Learning Trajectories in Mathematics Education. M. Simon, R. Tzur, Explicating the Role of Mathematical Tasks in Conceptual Learning: An Elaboration of the Hypothetical Learning Trajectory. K. Gravemeijer, Local Instruction Theories as Means of Support for Teachers in Reform Mathematics Education. L.P. Steffe, On the Construction of Learning Trajectories of Children: The Case of Commensurate Fractions. D.H. Clements, D.C. Wilson, J. Sarama, Young Children's Composition of Geometric Figures: A Learning Trajectory. M.T. Battista, Applying Cognition-Based Assessment to Elementary School Students' Development of Understanding of Area and Volume Measurement. R. Lesh, C. Yoon, Evolving Communities of Mind--Where Development Involves Several Interacting and Simultaneously Development Strands. A.J. Baroody, M. Cibulskis, M-L. Lai, X. Li, Comments on the Use of Learning Trajectories in Curriculum Development and Research.