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
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...
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.
Flipped Math
Unit 1 Review: Tools for Geometry
Pupils review the vocabulary, formulas, and postulates from the opening unit in Geometry. Individuals use these to solve a problem set that requires learners to apply algebraic skills along with providing reasons within a proof. Scholars...
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.
Curated OER
Area of a Rectangle - Geometry Help
How on earth is one to find the area of a rectangle when he doesn't know the width? Using the diagonal of the rectangle, the length, and the Pythagorean Theorem the missing side is determined and the area is discovered. This clip is...
Curated OER
Area of a Triangle - Geometry Help
Do you know what A=1/2 bh means? If you don't this video on the area of a triangle is a must. It defines the formula needed to determine the area of a triangle, works through an example problem, and clearly explains the procedure.
Curated OER
Area of a Parallelogram - Geometry Help
Work the problem shown in this video to learn how to determine the area of a parallelogram. Basic algebra, area, and the Pythagorean Theorem are used to find the missing value and solve the problem of area.
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...
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.
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.
TED-Ed
The Complex Geometry of Islamic Design
Discover the prevalence of geometric design in Islamic culture with this wonderful informational video. It begins with an overview of the complexity of designs dating back to the eighth century during early Islam, and then...
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.
JFR Science
VSEPR Theory: Determining the 3D Shape of Molecules
Ready to take molecules out of the two dimensional world and into 3-D? Chemistry scholars explore molecular geometry through a well-written video from the JFR Science series. Topics include the effects of bonding and non-bonding...
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.
CK-12 Foundation
Finding the Distance Between Two Points: Lesson
Point out an application of Pythagoras. The segment of an essential playlist on geometry provides a quick review of the Pythagorean Theorem. Using a right triangle to show the positions of two points, the presenter calculates the...
CK-12 Foundation
Perpendicular Lines in the Coordinate Planes: Lesson
Get the slope right with two easy steps. By placing two perpendicular lines on the coordinate plane, the video determines the relationship of the slopes of the two line lines. The resource is a part of an informative and extensive...
CK-12 Foundation
Midsegment Theorem: Lesson
Use half the length to connect the midpoints. A section of a playlist on geometry introduces the concept of a midsegment of a triangle and how to find it. The video states the properties of the midsegment which make up the Midsegment...
CK-12 Foundation
Dilation in the Coordinate Plane: Lesson
Multiply coordinates to either shrink or enlarge a figure. An informative segment of a geometry playlist introduces dilation on the coordinate plane. The dilations in the resource use the origin as the center of dilation, which makes...
CK-12 Foundation
Transformation - Translation: Lesson
Develop a prime example of sliding about the coordinate plane. Using figures on the coordinate plane, a segment of an extensive geometry playlist introduces the transformation of translations. The presentation uses coordinate notation to...
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