Slicing Cylinders part of Spatial Thinking Workbook:Teaching Activities
Carol Ormand Ph.D., Carleton College
Students identify and draw slices through cylinders and partial cylinders, and use gestures to visualize slicing planes. This practice with visualizing slices through idealized geometric shapes is preparation for visualizing slices through geological features.

Slicing Fruit part of Spatial Thinking Workbook:Teaching Activities
Tom Hickson, University of St. Thomas (MN)
Students identify and draw slices through fruit, as practice for drawing slices through more complex features.

Slices Through 3D Objects part of Spatial Thinking Workbook:Teaching Activities
Carol Ormand Ph.D., Carleton College
Students identify and draw slices through an ice cream cone, a pyramid, and a beverage six-pack.

Understanding Polyhedral Diagrams part of Spatial Thinking Workbook:Teaching Activities
Carol Ormand Ph.D., Carleton College
Students identify individual polyhedra in a variety of diagrams and answer questions about shared oxygens in diagrams of common silicate structures.