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Professor Dave Explains
Types of Quadrilaterals and Other Polygons
Overview of the types of quadrilaterals.
Curated Video
Classifying Triangles Based On Angle Properties
Classifying triangles based on angle properties.
Curated Video
Counting Sides and Angles to Identify Polygons
In this video, the teacher explains how to differentiate between a pentagon and a hexagon and determine if they are regular or irregular. The teacher emphasizes the importance of understanding the vocabulary associated with shapes and...
Visual Learning Systems
Perimeter and Area: Calculating Perimeter
In this series of programs students are introduced to perimeter and area. Easy-to-understand examples enable students to understand the process by which perimeter is calculated. The area of rectangles, parallelograms, and triangles is...
Curated Video
Classify Quadrilaterals by Examining Their Sides
In this video, students will learn how to determine the relationship between quadrilaterals by examining their sides. The video explains the concepts of regular and irregular polygons, as well as the importance of considering the number...
Professor Dave Explains
Circles: Radius, Diameter, Chords, Circumference, and Sectors
Calculations involving circles.
Curated Video
Comparing and Analyzing Triangles by their Sides
In this lesson, the teacher explains how to compare and analyze triangles by their sides. The lesson covers different types of triangles, including equilateral, isosceles, and scaling triangles, and how to identify them based on their...
NUMBEROCK
Polygons
Alan kite surfs, skateboards, bikes, dives, and explores space as he learns about Polygons. These shapes surround Alan in his daily life, and he is so excited to give you a tour of real-world polygons! The smooth beat and positive vibes...
Curated Video
Finding the Area of Polygons by Decomposing
In this video, the teacher explains how to find the area of polygons by breaking them down into familiar shapes such as triangles, rectangles, parallelograms, and trapezoids.
TED-Ed
Why Do Honeybees Love Hexagons?
Float like a butterfly, think like a bee! Build a huge hive, hexagonally! Find out the reason that hexagons are the most efficient storage shape for the honeybees' honeycombs. This neat little video would be a sweet addition to...
Khan Academy
Rhombus Diagonals, Quadrilaterals, Geometry
Delving into proof that the diagonals of a rhombus are perpendicular to each other, this lecture evaluates the angles and sides of this figure. It would serve as a great test preparation activity.
Curated OER
Ty Burrell: Hexagon
Ty Burrell and Abby identify the characteristics of a hexagon. They discuss sides and angles. Through trial and error Abby finally identifies a hexagon.
Flipped Math
Unit 5 Review: Quadrilaterals and Polygons
Yes, it will be on the test. Young mathematicians first view an educational video to refresh their memories about material from the unit. They then complete a review worksheet where they find the measures of interior angles of polygons,...
Flipped Math
Polygon Angles
One's knowledge of angles should measure up to expectations. Scholars watch a video to learn about angles in polygons. They first see how to partition a polygon into triangles to find the sum of the interior angle measures. They then...
Corbett Maths
Frequency Polygons
How many ways can you think of to display data? A quick video lesson describes the process of creating one of them, a line graph, which is also referred to as a frequency polygon. After creating the graph, the instructor models how to...
Corbett Maths
Tessellations
Tessellate to fascinate your pupils. Watching a video helps them first understand the idea of tessellations. It then shows how the interior angles of shapes undergoing tessellations will sum to 360 degrees at points where their vertices...
Anywhere Math
Polygons in the Coordinate Plane
You'll be ready to plot something after a lesson on coordinate geometry! The video instructor begins by discussing how to plot four points to create a quadrilateral. The second example demonstrates finding the area and perimeter from the...
CK-12 Foundation
Interior Angles in Convex Polygons: Lesson
How are angles and sides related? Given several regular convex polygons, the video shows how to calculate the sum of their interior angles. The segment in a playlist on geometry shows how to find the measure of one angle if the polygon...
CK-12 Foundation
Exterior Angles in Convex Polygons: Lesson
Going around is the same no matter the number of sides. An installment in a geometry playlist explains exterior angles of a convex polygon. The video presents the formula to find the sum of the angles along with the formula for finding...
CK-12 Foundation
Classifying Polygons: Lesson
For your eyes only: classify the names of polygons. After providing the definition of a polygon, the video introduces the two major classifications of polygons, concave and convex. The segment of a larger playlist on geometry continues...
Socratica
Introduction to Polygons
How did polygons get their name? A brief video in the Socratica Geometry series explains the naming convention for polygons. Of course, this occurs after defining the term polygon.
Math Antics
Polygons
What shapes classify as a polygon? The resource provides the definition of a polygon and provides examples of polygons and shapes that are not polygons. The presentation gives an explanation of why each shape falls into the particular...
Mathed Up!
Angles in Polygons
Show your class that finding angle measures is a regular calculation with a resource that provides 12 problems dealing with the measures of angles in regular polygons. Pupils use formulas for the sum of measures of angles in a polygon to...