Finding surface area and volume
http://illuminations.nctm.org/LessonDetail.aspx?ID=L609
A lesson plan for grades 7–8 Mathematics
Using the isometric drawing tool, students build three-dimensional figures and find the surface area and volume of each figure. Illuminations provides a link to the isometric drawing tool, overhead transparencies, and detailed instructions for completing the lesson. After reviewing volume and surface area of three-dimensional figures, students discuss possible definitions of each. Then, using the isometric drawing tool, students build a specific figure and determine its volume and surface area. Students create a number of shapes from various cubes and determine volume and surface area.
Students will:
- Build three dimensional block figures.
- Find the surface areas of these figures.
- Find the volumes of these figures.
NCTM Standards and Expectations:
- Understand relationships among the angles, side lengths, perimeters, areas, and volumes of similar objects.
- Draw geometric objects with specified properties, such as side lengths or angle measures.
- Use two-dimensional representations of three-dimensional objects to visualize and solve problems such as those involving surface area and volume.
North Carolina Curriculum Alignment
Mathematics (2004)
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.



