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Parallel and Perpendicular Lines

In this concept, we learn about lines and their properties. We learn to identify and apply properties of angles formed by parallel and perpendicular lines, and to use angles to prove lines parallel. We also learn about slopes of parallel and perpendicular lines, and to represent them on a coordinate plane.
The concept is broken into smaller topics, which makes it easier and much more fun for students. The topics are listed below:-
Angles Formed by Parallel Lines and Transversals
In this topic, we learn theorems about the angles formed by parallel lines and a transversal.
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Lines in the Coordinate Plane
In this topic, we learn to graph lines and write their equations in slope-intercept and point-slope form. We also learn to classify lines as parallel, perpendicular, intersecting or coinciding.
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Lines, Planes, and Angles
In this topic, we learn to identify parallel, perpendicular, and skew lines. We also learn to identify parallel planes and classify the angles formed by two lines and a transversal.
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Perpendicular Lines
In this topic, we prove and apply theorems about perpendicular lines.
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Proving Lines Parallel
In this topic, we learn to use the angles formed by a transversal to prove two lines parallel.
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Slopes of Lines
In this topic, we learn to find the slope of a line. We also learn to use slopes to identify parallel and perpendicular lines.
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