Lesson plan

Classify a quadrilateral based on the slope and length of its sides by using coordinate geometry

teaches Common Core State Standards CCSS.Math.Content.HSG-GPE.B.4 http://corestandards.org/Math/Content/HSG/GPE/B/4

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Big Ideas: Coordinate geometry can be used to determine existing properties of a quadrilateral and classify it. In this lesson students will recognize that by determining the distance and slopes of various lines of a quadrilateral, they can classify the shape as a parallelogram, rectangle, rhombus, square or none of these. Vocabulary: parallelogram, rectangle, rhombus, square, quadrilateral, distance, slope, parallel, perpendicular