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.
3Blue1Brown
Derivative Formulas Through Geometry | Essence of Calculus, Chapter 3
Geometry to the rescue. By watching a video, scholars see how geometric concepts help explain derivative formulas: areas of rectangles and volumes of rectangular prisms for the Power Rule and similarity and trig ratios for the Sine Rule.
Khan Academy
Triangle Medians and Centroids, Special Properties and Parts of Triangles, Geometry
This video discusses the terminology used in geometry, including words like centroid and median. Through this lecture, young mathematicians can see a visual representation of both median and centroid. Also, a proof showing how to...
Khan Academy
Triangle Medians and Centroids, Special Properties and Parts of Triangles, Geometry
This video discusses the terminology used in geometry, including words such as centroid and median. Through this lecture, young mathematicians can see a visual representation of both. The video also demonstrates how to calculate medians.
Khan Academy
Pythagorean Theorem, Right Triangles and Trigonometry, Geometry
In this video, Sal introduces the Pythagorean Theorem to viewers, crossing into the realm of geometry. He uses several examples, including right triangles, to illustrate the applications and uses of the Pythagorean Theorem.
Khan Academy
Pythagorean Theorem II, Right Triangles and Trigonometry, Geometry
This lecture, the second in a series on the Pythagorean Theorem, delves into more complex problems. Primarily, it examines the process of finding the value of a hypotenuse. It is beneficial because the example problem is one in which the...
Khan Academy
Pythagorean Theorem II, Right Triangles and Trigonometry, Geometry
This lecture, the second in a series on the Pythagorean Theorem, delves into more complex problems. It primarily examines the process of finding the value of a hypotenuse. The example problem is beneficial because the solution is not...
TED-Ed
Pixar: The Math Behind the Movies
When will we ever use this? A Pixar movie maker explains to students how math is used in the creation of animated films. The movie maker discusses the importance of coordinate planes, transformations and translations, and...
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...
Curated OER
Point, Line, Plane, and Space - Geometry Help
Inform your teaching or use this clip at an independent work station. Basic geometric concepts of point, line, plane, and space are fully defined and exemplified in a straightforward and clear way. This clip is slow enough for note...
CK-12 Foundation
Indirect Proofs in Algebra and Geometry: Lesson
Indirectly, it is a good proof method. A segment of a playlist on geometry introduces a way to prove geometric and algebraic statements. Using a general examples, the video shows how to develop an indirect proof.
Mathispower4u
Applications from Geometry Using Polynomials
Bridge the gap between algebra and geometry. Scholars apply geometric knowledge to write polynomial expressions for the area of a figure. They watch as the narrator works through two examples to make the concept clear.
Khan Academy
Angles (Part 3), Angles and Intersecting Lines, Geometry
As preparation for the angle game, a geometry video covers the concepts of parallel lines, transversals, slope, opposite angles,, and corresponding angles. It is the third part of a series detailing the rules and laws regarding angles.
Socratica
Welcome to Geometry
Geometry welcomes you. A short video in the Socratica Geometry playlist provides an overview of geometry. It explains some concepts and gives a brief history of geometry.
Khan Academy
MTEL Math Practice Test: 31-35
Applying algebra and geometry skills, a set of problems tests the viewer with questions about area, radius, and proportions. An excellent review for even the most confident future math teacher, the video is sure to help with the correct...
Curated OER
Tangents and Circles - Geometry Help
Does watching a person do a math problem help you understand a mathematical concept? If it does then this clip will be a great help. The tutor in this clip completes a geometry problem involving tangents, circles, and the Pythagorean...
Curated OER
Types of Polygons - Geometry Help
If it has three sides it's a triangle! Learn about the different types of polygons and how they are classified by the number of sides they have. This clip clearly defines each type of polygon, but fails to show examples.
Khan Academy
Area of a Circle, Perimeter, Area, and Volume, Geometry
This production, the second installment in a series of circles, demonstrates the process of finding the area of a circle. It is effective as an introductory tool. However, it needs to explain the reasoning behind the formula because that...
Khan Academy
Parallel Lines From Equation, Mathematics I, High School Math
Here is a fairly basic video that uses three equations, each written in slope-intercept form, to determine whether the lines are parallel. Sal graphs each equation on the same coordinate plane to show how their slopes compare. The video...
Khan Academy
Heron's Formula, Perimeter, Area, and Volume, Geometry
Introducing the Heronês formula is the main objective of this lecture. Essentially, it describes how to solve a problem. Heron's formula is given, and then a problem is solved. Since the actual explanation of the formula will be given...
Khan Academy
Find the Volume of a Triangular Prism and Cube, Geometry
By describing the formula used to calculate the volume of a triangular prism, Sal gives students practice in solving volume equations. The questions are straightforward and solved in an easy-to-follow manner. Show this to your class as...
Khan Academy
Triangle Medians and Centroids (2D Proof), Geometry
In the first part of this series, the instructor addressed the terminology used with medians and centroids of triangles and then showed how to solve this type of problem. He illustrated the concepts using a high-level problem, likely...
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.
Krista King Math
Area of a Triangle
Triangles are not all created the same. The instructor shows how to find the area of different types of triangles using the formula. She also includes an example requiring coordinate geometry.
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