Virtual Nerd
Virtual Nerd: What Is a Rectangle?
Tutorial provides an introduction to rectangles and explains their special properties. [5:56]
Virtual Nerd
Virtual Nerd: What Is a Parallelogram?
Video tutorial takes a look at parallelograms and explores what kinds of quadrilaterals can also be called parallelograms. [7:17]
Virtual Nerd
Virtual Nerd: What Is a Trapezoid?
This tutorial introduces trapezoids and takes a look at the special properties needed for a quadrilateral to be called a trapezoid. [5:27]
Virtual Nerd
Virtual Nerd: What Is a Quadrilateral?
Watch this tutorial to learn about quadrilaterals and their special types. [4:52]
Virtual Nerd
Virtual Nerd: What Is a Square?
Video tutorial explores squares and explains their special properties. [5:59]
Virtual Nerd
Virtual Nerd: What Is a Rhombus?
This tutorial introduces you to the rhombus and explains its special properties. [5:15]
Khan Academy
Khan Academy: Area of Kites
Video lesson explores how to find the area of a kite which is a quadrilateral with two distinct pairs of equal adjacent sides. [3:48]
Khan Academy
Khan Academy: Area of Trapezoids
Video tutorial demonstrates how to find the area of a trapezoid using the formula A=(a+b)/2 x h. [4:47]
Khan Academy
Khan Academy: Quadrilaterals: Quadrilateral Overview
This video identifies and defines concave quadrilaterals, convex quadrilaterals, trapezoids, parallelgrams, rectangles, rhombi, and squares.
Sophia Learning
Sophia: Classifying Quadrilaterals
This video tutorial describes how to classify quadrilaterals using key characteristics such as parallel sides and right angles. [4:27]
Sophia Learning
Sophia: Classifying Quadrilaterals
Quadrilaterals are explored in this video lesson. The tutorial describes the characteristics of various quadrilaterals. Students can check their understanding with an assessment. [6:17]
Sophia Learning
Sophia: Coordinate Geometry of Rectangles
This detailed lesson uses slope, midpoint, and distance formulas to prove a quadrilateral is a rectangle in the coordinate plane.
Sophia Learning
Sophia: Formula for the Area of a Parallelogram
Explore the formula for the area of a parallelogram and complete the quiz to assess understanding.
Sophia Learning
Sophia: Quadrilateral
Quadrilateral is defined and examples are given in this video tutorial. [2:23] Check understanding with a quiz.
Sophia Learning
Sophia: Quadrilateral
In this video tutorial [1:54], explore the term quadrilateral and what objects are defined as quadrilaterals. Take quiz to check understanding.
Sophia Learning
Sophia: Quadrilateral
In this video tutorial [4:00], define the term quadrilateral and what shapes are considered to be quadrilaterals. Take quiz to assess learning.
Sophia Learning
Sophia: Quadrilaterals and Triangles
This video lesson [4:55] describes the characteristics that quadrilaterals and triangles have in common. Students can check their understanding with an assessment.
Sophia Learning
Sophia: Area of a Parallelogram With Triangles and Rectangles
Explore how to find the area of a parallelogram using triangles and rectangles, then assess learning with a quiz.
Sophia Learning
Sophia: Area of a Trapezoid
In this video, students will determine the area of a trapezoid and assess learning with a quiz. [4:24]
Sophia Learning
Sophia: Area of a Trapezoid
In this video, students will use triangles to determine the area of a trapezoid. Assess learning with a quiz. [7:20]
Sophia Learning
Sophia: Area of Quadrilaterals: Taking' It to the Streets
This lesson provides a video that shows examples of various quadrilaterals in the real world. A notes sheet follows describing the characteristics of each quadrilateral and how to find the area of several figures. [3:37]
Virtual Nerd
Virtual Nerd: How Do You Find a Missing Angle in a Quadrilateral?
This tutorial demonstrates how to create an equation and solve it to find the missing measurements in a quadrilateral. [4:13]
Imagine Learning Classroom
Learn Zillion: Classify and Compare Quadrilaterals
In this lesson, you will learn to compare and analyze quadrilaterals by their properties. [4:07]
Loyola University Chicago
Math Flix: Polygons
This video [4:39] provides an opportunity to learn about the characteristics of polygons. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.