Sarama, Julie and Douglas H. Clements. Teaching Math in The Primary Grades: The Learning Trajectories Approach.
LNS Monograph, Paying Attention to Spatial Reasoning.
Ehrlich, Stacy B., Susan C. Levine and Susan Goldin-Meadow, The Importance of Gesture in Children’s Spatial Reasoning, 2006.
We also reviewed the following lesson studies on the M4YC website:
Geometry: Connecting 2D and 3D
Geometry: Spatial Reasoning and Orientation of 2D Shapes – See more at: http://tmerc.ca/m4yc/northumberland.html#sthash.0CGIoyic.dpuf
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