Flipped Math
Measuring Segments
Find out how far it is from here to there. Scholars learn more vocabulary dealing with line segments and find out the relationship between equal distances and congruent segments. Pupils then use the distance and midpoint formulas to...
Flipped Math
Points, Lines, and Planes
Geometry is more than just vocabulary. Pupils learn the basic geometric definitions and how to identify and name points, lines, and planes. Though the first lesson is packed with related vocabulary, scholars experience four postulates...
Math Antics
Points, Lines and Planes
Geometry begins with a point. The video introduces the concepts of points, lines, and planes. Using diagrams, the presenter includes how to name the objects along with how to write the names. Previewing the concept of 3-D space ends the...
Krista King Math
Line Segments in 3-D: Finding the Midpoint!
It's about to get 3-D! The video shows your class how to expand the midpoint formula to find the midpoint of a three-dimensional segment. The example shown calculates the midpoint using the x-, y-, and z-coordinates.
Krista King Math
Length of a Line Segment
What's the quickest way to get from point A to point B? Follow the line segment! The concept video demonstrates how to find the length of a line segment. Examples range from numeric to algebraic.
Brightstorm
The Geometric Representation of Vectors - Concept
What do you get when you cross a mosquito with a mountain climber? Nothing, you can't cross a vector and a scalar. The first video offers an explanation for how a geometric representation of vectors is helpful when adding and can be used...
Brightstorm
Duplicating a Line Segment
Geometric constructions use simple tools to do complex things. Introduce learners to constructions by copying a segment. A concept video features the proper procedure for performing constructions, so young mathematicans...
Brightstorm
Three Undefined Terms: Point, Line, and Plane
Defining the undefined is the goal of this video. The instructor explains the important features of a point, line, and plane and how they work together. He also addresses the correct ways to name each and describes the correct notation —...
National Education Association
Use Coordinate Geometry to Represent and/or Solve Problems
A geometry video explains how to solve for midpoint, length of a line, and use the Pythagorean Theorem. It includes multiple guided practice problems for all three equations.
Curated OER
What is a Line Segment?
Line, line segment, segment of a line, what does it all mean? Endpoints, midpoints, names of lines, names of segments. Watch this video and learn the definitions of these terms.
Virtual Nerd
What are Interior and Exterior Angles of a Polygon?
Break down interior and exterior angles with this video. Using a pentagon, a teacher demonstrates how to find the interior and exterior angles of a polygon. She goes on to explain a few of the properties of these angles, writing down all...
Curated OER
What Does Congruent Mean?
Two figures are congruent if they have the same size and shape. Line segments can also be congruent if they are of the same length. Vertical angles created by intersecting lines are always congruent. Polygons that have matching angles...
Curated OER
How Do You Find the Distance Between Two Points?
Learn how to use an algebraic formula to find the distance between two given points on a coordinate plane.
Curated OER
What's the Midpoint Formula?
The midpoint of a line segment can be found using the ordered pair of each endpoint and dividing by 2. Not sure what that means? Watch this video to see the graph of a line segment and see how the teacher uses a formula to find the...
Curated OER
What is a Polygon?
What makes a figure a polygon? Does it have three or more sides? Is it a closed figure? If the answer is yes to both of those questions then it's a polygon. But wait! Some of these polygons have special names based on the number of sides...
Curated OER
What Does Congruent Mean?
Two figures are congruent if they have the same size and shape. Line segments can also be congruent if they are of the same length. Vertical angles created by intersecting lines are always congruent. Polygons that have matching angles...
Curated OER
How Do You Find the Midpoint Between Two Coordinates?
You've been given two coordinate points on a graph. When these points are connected they form a line segment. Now you have to find the midpoint of this line. Of course there is a formula and all you have to do is plug in the coordinate...
Curated OER
What are the Endpoints of a Line Segment?
A simple video on how to identify the endpoints of a line segment. Have your class watch this video to clarify any confusions about endpoints. This could be used as extra help for learners who are having difficulty, or as a supplement to...
Curated OER
What are the Endpoints of a Line Segment?
A simple video on how to identify the endpoints of a line segment. Have your class watch this video to clarify any confusions about endpoints. This could be used as extra help for learners who are having difficulty, or as a supplement to...
Khan Academy
Khan Academy: Triangles: Congruent Triangle Proof Example
Students learn how to prove that two triangles are congruent using midpoint of line segments.
Khan Academy
Khan Academy: Triangles: Congruent Triangle Example 2
Students watch a video tutorial showing that segments have the same length using triangle congruence properties.
Sophia Learning
Sophia: Drawing a Line Segment: Lesson 5
This lesson will walk you through the steps, tools, and notations involved in drawing a line segment. It is 5 of 6 in the series titled "Drawing a Line Segment."
Sophia Learning
Sophia: Drawing Line Segment Addition: Lesson 10
This lesson will demonstrate how to take two line segments and add one to the end of the other. It is 10 of 10 in the series titled "Drawing Line Segment Addition."
Sophia Learning
Sophia: Drawing Line Segment Addition: Lesson 2
This lesson will demonstrate how to take two line segments and add one to the end of the other. It is 2 of 10 in the series titled "Drawing Line Segment Addition."