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Ch 38: 6th-8th Grade Geometry: Quadrilaterals

About This Chapter

The brief and entertaining video lessons in this chapter on quadrilaterals show 6th-8th graders how to identify the properties of different mathematical shapes. Students can re-watch videos and review lesson transcripts to improve retention.

6th-8th Grade Geometry: Quadrilaterals - Chapter Summary

Watch the video lessons in this chapter to guide your students through an examination of quadrilaterals. Easy and entertaining videos discuss the properties of trapezoids, parallelograms, and more, in addition to showing students the relationships between many of these shapes. While watching the videos, you can click on video tags to move between main points. Also, you can test your students' understanding of quadrilaterals through having them take lesson quizzes.

Chapter Lessons and Objectives

Lesson Objectives
What is a Quadrilateral? - Definition, Properties, Types & Example Instructors discuss the characteristics that define this type of shape.
Parallelograms: Definition, Properties, and Proof Theorems Students will learn how to describe and draw a parallelogram, examine the properties of this shape, and review the theorems used to prove if a parallelogram is a quadrilateral.
What Is a Rhombus? - Definition and Properties This lesson explains and sketches a rhombus, establishes its properties, and verifies the connection between quadrilaterals and rhombuses.
Kites in Geometry: Definition and Properties Instructors show and illustrate the properties of a kite, and then compare a kite to a rhombus.
Rectangles: Definition, Properties & Construction Here, students can examine the properties of a rectangle and then analyze construction of this shape.
Squares: Definition and Properties Use this lesson to help your sixth-eighth graders break down the properties of a square and create an accompanying drawing.
Trapezoids: Definition and Properties Students may study the properties of trapezoids, and then visually show the difference between an isosceles and a regular trapezoid.
Similarities & Differences of Quadrilaterals Instructors present a side-by-side comparison of several quadrilaterals to spot the differences and similarities between shapes.

8 Lessons in Chapter 38: 6th-8th Grade Geometry: Quadrilaterals
What is a Quadrilateral? - Definition, Properties, Types & Examples

1. What is a Quadrilateral? - Definition, Properties, Types & Examples

This lesson explains the definition and properties of a quadrilateral. We will look at examples of two categories of quadrilaterals. At the end, you will be able to test your knowledge with a quiz.

Parallelograms: Definition, Properties, and Proof Theorems

2. Parallelograms: Definition, Properties, and Proof Theorems

Watch this video lesson to learn how you can identify parallelograms. You will see the unique properties that belong to the parallelogram. You will see the special side and angle characteristics needed to prove a certain shape is a parallelogram.

What Is a Rhombus? - Definition and Properties

3. What Is a Rhombus? - Definition and Properties

Watch this video lesson to learn why rhombuses are a special type of quadrilateral. Also, learn why a rhombus is also a parallelogram. Watch as we explore the sides and angles of a rhombus.

Kites in Geometry: Definition and Properties

4. Kites in Geometry: Definition and Properties

A kite in geometry looks a lot like a kite in the sky! Watch this video lesson to see for yourself. Also, learn about the side and angle properties of kites that make them unique.

Rectangles: Definition, Properties & Construction

5. Rectangles: Definition, Properties & Construction

Watch this video lesson to learn a bit about rectangles. Learn why rectangles are the building blocks of many homes. Also, learn about the properties that make a rectangle unique from other shapes. Finally, learn how you can draw one.

Squares: Definition and Properties

6. Squares: Definition and Properties

Squares can be found in many places in the real world. Watch this video lesson to see how useful they can be and also to learn how to find the perimeter and area of a square.

Trapezoids: Definition and Properties

7. Trapezoids: Definition and Properties

Watch this video lesson to learn what a trapezoid has to do with a triangle. Also, learn the special words that describe the various parts of a trapezoid. You will also see special types of trapezoids.

Similarities & Differences of Quadrilaterals

8. Similarities & Differences of Quadrilaterals

Watch this video lesson to learn how you can find similarities and differences between two quadrilaterals. Learn what aspects of the quadrilaterals you need to focus on to find the similarities and differences.

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Other Chapters

Other chapters within the 6th-8th Grade Math: Practice & Review course

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