Determine what happens when two or more planes intersect. Assess learning with a quiz.

In this video lesson [3:29], students explore the difference between a two-dimensional object and a three-dimensional object as well as defining the term plane. Use assessment to check understanding.

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.

This QuickTime movie provides an opportunity to discover the formula for finding the number of vertices on a polyhedron. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.

This lesson shows how a coordinate plane should be drawn and labeled. It is 2 of 11 in the series titled "Drawing a Coordinate Plane."

This lesson shows how a coordinate plane should be drawn and labeled. It is 6 of 11 in the series titled "Drawing a Coordinate Plane."

Given the slope and y-intercept of a line, this lesson how the equation of the line can be found. It is 9 of 11 in the series titled "Finding an Equation from the Slope and the Y Intercept."

This lesson shows how an inequality can be determined from a graph. It is 8 of 10 in the series titled "Finding an Inequality from a Graph."

Given the equation of a line, this lesson shows how to find the slope. It is 1 of 11 in the series titled "Finding the Slope of a Line from an Equation."

The incremental markings along the axes of a coordinate plane are introduced here. This lesson is 4 of 7 in the series titled "Marking the Coordinate Plane."

The incremental markings along the axes of a coordinate plane are introduced here. This lesson is 1 of 7 in the series titled "Marking the Coordinate Plane."

Sophia is an online community in which teachers share video tutorials and quizzes. On this site students learn the formula for finding the middle of a line segment and then practice the skill.

This lesson explains what it means when planes do not intersect.

This lesson shows how the graphs of inequality with absolute values should be shaded. It is 10 of 10 in the series titled "Shading Absolute Value Inequalities."

This lesson shows how the graphs of inequality with absolute values should be shaded. It is 2 of 10 in the series titled "Shading Absolute Value Inequalities."

This lesson shows how the graphs of inequality with absolute values should be shaded. It is 8 of 10 in the series titled "Shading Absolute Value Inequalities."

This lesson shows how the graphs of inequality with absolute values should be shaded. It is 1 of 10 in the series titled "Shading Absolute Value Inequalities."

The procedure for plotting and shading the graph of an inequality is demonstrated here. This lesson is 2 of 9 in the series titled "Shading the Graph of an Inequality." A short multiple-choice quiz accompanies the video. [2:46]

The procedure for plotting and shading the graph of an inequality is demonstrated here. This lesson is 4 of 9 in the series titled "Shading the Graph of an Inequality."

The procedure for plotting and shading the graph of an inequality is demonstrated here. This lesson is 9 of 9 in the series titled "Shading the Graph of an Inequality."

The procedure for plotting and shading the graph of an inequality is demonstrated here. This lesson is 1 of 9 in the series titled "Shading the Graph of an Inequality."

In this lesson, you will learn about the Shape element and how it is used in the visual design process. It is 2 of 3 in the series titled "Shape."

The shifting of a function to the left or right on a graph is shown in this lesson. It is 3 of 11 in the series titled "Shifting Left to Right."

The shifting of a function to the left or right on a graph is shown in this lesson. It is 4 of 11 in the series titled "Shifting Left to Right."