Instructional Video10:17
Mathispower4u

Circumference, Volume of a Cone, Pythagorean Theorem (L1.5)

For Students 8th - 11th Standards
There's a formula for that. An educational video shows viewers how to apply geometry formulas to solve problems. It covers the formulas for the circumference of a circle, volume of a cone, and the Pythagorean Theorem.
Instructional Video1:31
Corbett Maths

Equations – Cross Multiplication

For Students 8th - 10th Standards
Mastering the art of solving a proportion is not only important for algebra, but it's crucial to geometry and statistics as well. A quick video demonstrates the use of cross multiplication to solve a proportion. The lesson includes...
Instructional Video1:48
Corbett Maths

Congruent and Similar Shapes

For Students 6th - 12th Standards
By definition, a congruent shape remains similar, but similar shapes may or may not be congruent. Scholars watch a video explaining the sometimes-confusing concept. Practice problems ensure pupils demonstrate their understanding to...
Instructional Video5:20
Mathispower4u

Find the Height of a Trapezoid Given Area (Example)

For Students 7th - 11th Standards
Reach new heights in your geometry knowledge. An educational video shows viewers how to find the height of a trapezoid given the area. They watch as the narrator works through an example of such a problem.
Instructional Video9:11
Corbett Maths

Algebraic Proof

For Students 8th - 12th Standards
Proofs do not exist only in geometry. The video shows the class different ways that proofs appear in algebra. Pupils work through a variety of algebraic proofs involving the divisibility of an algebraic expression or whether it is even...
Instructional Video10:31
Corbett Maths

Transformations of Graphs

For Students 9th - 12th Standards
Geometric transformations in algebra ... what? Given four transformations, the narrator explains how each affect the graph of the original function. The transformations involve translations and reflections, both horizontally and...
Instructional Video6:21
Corbett Maths

Forming Equations Involving Perimeter or Angles

For Students 6th - 8th Standards
Use perimeter and angle measures to practice solving equations. Pupils see two geometry applications of solving two-step equations. The video works one example involving perimeter and two with the sum of angles in a quadrilateral and a...
Instructional Video5:04
TED-Ed

The Murder of Ancient Alexandria's Greatest Scholar

For Students 6th - 12th
Hypatia, teacher, and advisor to the governor of Alexandria, was a Neoplatonist, believing that arithmetic, geometry, astronomy, and music were the sacred language of the universe. Find out why this brilliant scholar was brutally...
Instructional Video14:29
2
2
Flipped Math

Addition Postulate

For Students 9th - 12th Standards
Add a little algebra to the geometry. Class members learn about the Addition Postulate for segments and angles. The pupils use their knowledge of solving equations to find lengths of segments and measures of angles. Individuals apply...
Instructional Video22:15
2
2
Flipped Math

Intro to Proofs

For Students 9th - 12th Standards
Prove the best way to keep up in Geometry. Scholars first review algebraic properties from Algebra. Learners then use the properties to create two-column proofs to solve linear equations before completing algebraic proofs by providing...
Instructional Video14:37
2
2
Flipped Math

Parallel Lines and Triangles

For Students 9th - 12th Standards
Triangles bring sums to geometry. The lesson presents two theorems dealing with the angles of a triangle. Pupils learn about the Triangle Sum Theorem and the Exterior Angle Theorem, and then apply the theorems to create equations and...
Instructional Video15:16
2
2
Flipped Math

SSS and SAS

For Students 9th - 12th Standards
Why use six corresponding parts when three will suffice? The second of five lessons in the Geometry - Triangle Congruence unit focuses on the SSS and SAS triangle congruence criteria. By watching a video, scholars learn how to identify...
Instructional Video11:32
2
2
Flipped Math

CPCTC and HL Theorem

For Students 9th - 12th Standards
The resource is sure to be a right fit for introducing the congruence of right triangles. The fourth of five lessons in the Geometry - Triangle Congruence unit teaches pupils how to use CPCTC to prove congruent parts. They also apply the...
Instructional Video9:40
2
2
Flipped Math

Equations of Lines in the Coordinate Plane

For Students 9th - 12th Standards
What, you mean there is algebra in a Geometry class? Pupils review graphing and writing the equations of lines in slope-intercept form. The instruction follows the "I do, we do, you do" framework of a lesson. The instructor first...
Instructional Video11:57
2
2
Flipped Math

Side Splitter Theorem

For Students 9th - 12th Standards
Apply perspective to similarity. Individuals learn about the Side Splitter Theorem by looking at perspective drawings. Pupils use the theorem and its corollary to find missing lengths in figures. Next, they practice using the theorem and...
Instructional Video14:49
2
2
Flipped Math

Parallelogram Properties

For Students 9th - 12th
Provide pupils with problems on applying properties of parallelograms. The second of seven installments in the Geometry - Quadrilaterals and Polygons unit focuses on parallelograms. Viewers of the instructional video learn about the...
Instructional Video17:37
2
2
Flipped Math

Conditions for Rectangles, Rhombuses and Squares

For Students 9th - 12th Standards
Here's a special lesson about some special parallelograms. The fifth of seven parts in the Geometry - Quadrilaterals and Polygons unit focuses on the conditions for rectangles, rhombuses, and squares. Young mathematicians use these...
Instructional Video17:10
2
2
Flipped Math

Surface Area of Pyramids and Cones

For Students 9th - 12th
Scratch more than just the surface when investigating surface area. The second video of six installments in the Geometry - Surface Area and Volume unit focuses on the surface area of pyramids and cones. Young mathematicians learn to...
Instructional Video12:26
2
2
Flipped Math

Surface Area and Volumes of Spheres

For Students 9th - 12th Standards
Round out the unit by investigating spheres. The fifth of six parts in the Geometry - Surface Area and Volume unit has pupils learn how to calculate both quantities for spheres. They watch as the narrator of an instructional video works...
Instructional Video7:11
Fun Stuff To Do

Square Pyramid

For Teachers 6th - 10th
Your geometry learners will appreciate this net for a square pyramid. Copy, cut, and manipulate to explore the surface area or volume of a square pyramid.
Instructional Video7:11
Wikihow

Volume of a Pyramid

For Teachers 8th - 12th Standards
Your geometry learners will appreciate this poster explaining the volume of a square pyramid. It is simple, to the point, and includes pictures.
Instructional Video1:52
Curated OER

Radius, Chord, Diameter, and Secant

For Teachers 9th - 12th
What do a secant, chord, diameter, and radius all have in common? They are all components or measurements of a circle! This clip quickly defines each of these terms using verbal, written, and diagram examples.
Instructional Video3:08
Virtual Nerd

What is a Vector?

For Teachers 6th - 12th
Define a vector and teach your class about the different parts of a vector with this video. An instructor conveys what a vector is, labeling the parts and providing multiple examples. Learners can re-watch this video if they are...
Instructional Video3:14
Socratica

Complementary, Supplementary, and Vertical Angles

For Students 6th - 10th
You're such a great resource, said the complementary angle. A short video in the Socratica Geometry playlist describes complementary, supplementary, and vertical angles. It also shows how to calculate the other angle in a supplementary...

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