CK-12 Foundation
Similar Solids: Lesson
Blow up a solid by a scale factor. A section of a larger playlist on basic geometry introduces the ratios of the surface areas and volumes of similar solids. Using the ratios, the video works several examples involving similar figures.
Curated OER
How Do You Identify a Three-Dimensional Figure from a Net?
Learn how to use two-dimensional nets to identify their corresponding three-dimensional figure. The instructor uses diagrams to illustrate the two-dimensional nets and talks about the characteristics of each one to identify its...
CK-12 Foundation
Three Dimensions in Two Dimensions: Lesson
Slice up solids. A portion of a geometry playlist introduces two conventional ways to visualize 3-D figures in 2-D. The resource defines cross-sections and nets and provides examples of both.
CK-12 Foundation
Pyramids: Lesson
Pyramids: they're not just in Egypt! The segment of a large geometry playlist introduces the formulas to find the volumes and surface areas of regular pyramids. Using the formulas, the presentation works several examples to ensure your...
Sophia Learning
Sophia: Nets
Determine which two-dimensional and three-dimensional figures are created with net in this video tutorial lesson. Assess learning with a quiz. [3:27]
Loyola University Chicago
Math Flix: Polyhedra Nets 2
This QuickTime movie provides an opportunity to identify more Polyhedra using Nets. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.
Loyola University Chicago
Math Flix: Polyhedra Nets 1
This QuickTime movie provides an opportunity to identify Polyhedra using Nets. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.
Khan Academy
Khan Academy: Intro to Nets of Polyhedra
Learn about the nets that represent 3D solids. [6:48]
Loyola University Chicago
Math Flix: Polyhedra Basics Using Nets
This QuickTime movie provides an opportunity to learn about the basics of Polyhedra using Nets. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.
Sophia Learning
Sophia: Nets
In this video tutorial, students will explore several different shapes and the nets that make them. Quiz to follow the lesson. [3:12]