Instructional Video14:22
Curated Video

Angles of Polygons: Understanding Interior and Exterior Angle Measures

9th - 12th
In this video, the teacher explains the concepts of polygons, interior and exterior angle measures, and how to find missing angles using equations. The teacher also provides examples and patterns to help students understand these...
Instructional Video2:43
Let's Tute

Counting Duplicates with COUNTIF and SUMPRODUCT in Microsoft Excel

9th - Higher Ed
In this tutorial, the teacher explains how to use the COUNTIF and SUMPRODUCT functions in Excel to count duplicates and find unique names in a data set. The tutorial is easy to follow and includes step-by-step instructions and examples.
Instructional Video8:42
Curated Video

Triangle Sum Theorem and Exterior Angle Theorem

9th - 12th
In this video, the teacher explains the basics of triangles, including the interior and exterior angles. The lesson covers the triangle sum theorem, using ratios to find angle measures, and the exterior angle theorem. The teacher...
Instructional Video1:53
Brian McLogan

What is a ratio

12th - Higher Ed
👉 Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we...
Instructional Video16:59
Let's Tute

Drawing a House with Two Point Perspective

9th - Higher Ed
In this video we will learn how to draw a House with Two Point Perspective
Instructional Video4:19
Curated Video

Angles formed by Parallel Lines and a Transversal

9th - 12th
In this video, the teacher explains angle facts using the concepts of alternate interior angles and supplementary angles in the context of parallel lines and a transversal. The teacher reviews four algebraic expressions representing...
Instructional Video15:39
NUMBEROCK

Measurement Songs For Kids | 3rd Grade - 4th Grade

K - 5th
Thank you for watching our Measurement Songs Compilation. We hope you liked the songs!
Instructional Video11:57
Curated Video

Similar Figures, Angle-Angle Similarity and Indirect Measurement

9th - 12th
In this video lesson, we learn about similar figures and indirect measurement. The teacher explains how to identify similar figures, find missing side lengths using proportional ratios, and use angle-angle similarity to solve problems....
Instructional Video1:51
Curated Video

Find Angles formed by Parallel Lines and a Transversal

9th - 12th
In this math test prep video, the teacher explains how to solve a standardized test question about parallel lines and a transversal. By identifying corresponding angles and using the fact that supplementary angles add up to 180 degrees,...
Instructional Video1:38
Curated Video

Find Corresponding Angles of Similar Triangles

9th - 12th
In this short video we will answer a standardized math test question where we are asked to identify a missing angle of a triangle. We will review the definition and meaning of similar triangles. We will identify which angle corresponds...
Instructional Video10:01
Curated Video

Triangle Similarity and Indirect Measurement

9th - 12th
In this video lesson on triangle similarity and indirect measurement, students will learn how to find missing side lengths and use angle angle similarity to solve problems. Through real-world examples and step-by-step explanations,...
Instructional Video1:03
Curated Video

I WONDER - What Is A Wildlife Reserve?

Pre-K - 5th
This video is answering the question of what is a wildlife reserve.
Instructional Video0:46
Curated Video

I WONDER - How Old Is The Universe?

Pre-K - 5th
This video is answering the question of how old is The Universe.
Instructional Video2:49
Curated Video

Proof of The Pythagorean Theorem

9th - 12th
In this video we will prove why the Pythagorean Theorem is true for a right triangle. We will visually create squares of each side to prove the theorem. Grade 8 Common Core Topics/Standards
Instructional Video3:13
Curated Video

Five Facts - Shakespeare

Pre-K - 5th
This video explores five fun facts about Shakespeare.
Instructional Video1:17
Curated Video

English Grammar Intermediate - Opinions and Plans

Pre-K - Higher Ed
English grammar intermediate - Expressing opinions and plans. Thank you Lingoda for sponsoring this lesson and continuing to support this channel through these uncertain times. Do let me know in the comments section if you have any...
Instructional Video4:22
Curated OER

How Do You Find a Missing Angle in a Triangle?

6th - 10th
The interior angles of any and ALL triangles adds up to 180 degrees. So if given two of the angle degrees, is it possible to find the value of the third angle? Yes! Use the triangle sum theorem to solve for the missing angle. Watch this...