When is a cube not a cube?
http://illuminations.nctm.org/index_d.aspx?id=427
A lesson plan for grades 6–8 Mathematics
In this lesson, the third in a four-part series from Illuminations titled “Spatial Reasoning Using Cubes and Isometric Drawings: Part Two: Solid to Isometric—One to Many,” students explore polyhedra using different representations and perspectives for three dimensional block figures. Students use interactive Java applets to determine which shapes might have the same isometric drawing.
North Carolina Curriculum Alignment
Mathematics (2004)
Grade 6
- Goal 3: Geometry -The learner will understand and use properties and relationships of geometric figures in the coordinate plane.
- Objective 3.03: Transform figures in the coordinate plane and describe the transformation.
- Objective 3.04: Solve problems involving geometric figures in the coordinate plane.
Grade 7
- Goal 3: Geometry - The learner will understand and use properties and relationships in geometry.
- Objective 3.01: Using three-dimensional figures:
- Identify, describe, and draw from various views (top, side, front, corner).
- Build from various views.
- Describe cross-sectional views.
- Objective 3.01: Using three-dimensional figures:
Grade 8
- Goal 3: Geometry - The learner will understand and use properties and relationships in geometry.
- Objective 3.01: Represent problem situations with geometric models.



