Hi, what do you want to do?
Curated Video
Find Measures of Inscribed Angles Using Central Angles
In this video, the teacher explains the relationship between the measure of an inscribed angle and its intercepted arc. They use the central angle theorem to prove and apply this relationship. By understanding this theorem, students can...
Curated Video
Comparing and Analyzing Triangles by their Sides
In this lesson, the teacher explains how to compare and analyze triangles by their sides. The lesson covers different types of triangles, including equilateral, isosceles, and scaling triangles, and how to identify them based on their...
Curated Video
Determining Triangle Similarity Using Dilation and Translation
In this lesson, students will learn how to determine if two triangles of different sizes are similar. By using a combination of dilation and translation, they will understand that when two triangles have corresponding congruent angles,...
NUMBEROCK
Polygons
Alan kite surfs, skateboards, bikes, dives, and explores space as he learns about Polygons. These shapes surround Alan in his daily life, and he is so excited to give you a tour of real-world polygons! The smooth beat and positive vibes...
Curated Video
Understanding Reflections in Geometry
In this video, we discuss how reflections are a type of rigid transformation where the image maintains the same size and shape as the preimage. We emphasize the importance of the line of reflection and how the distances of line segments...
Kids Learning Videos
Shapes Song | Shapes Are All Around | Learning Shapes for Toddlers and Baby
Shapes Song: "Shapes Are All Around" Everywhere around us, there are many different shapes. This fun shapes song teaches children and toddlers about shapes found in everyday objects. They can sing along as they see the shapes in the...
Math Fortress
Geometry: Introduction to Geometry (Level 2 of 7)
This video continues introducing the basic building blocks for the successful study of geometry. This video goes over 4 examples covering the appropriate way to draw, denote and name points, lines, segments, rays, angles and triangles.
Math Fortress
Geometry: Introduction to Geometry (Level 1 of 7)
This video introduces the basic building blocks for the successful study of geometry. This video goes over the appropriate ways to denote and name points, lines, segments, rays, angles and triangles.
Curated Video
Calculating Actual Distance on a Map Using a Scale
This video students will learn how to calculate the actual distance on a map by using a scale. It explains the concepts of ratios, proportions, and scale factors, and provides examples of how to apply them. The video emphasizes the...
Curated Video
Deriving the Equation Y = MX + B Using Similar Triangles
In this video, the teacher explains the concept of the equation Y equals MX plus B using similar triangles. They demonstrate how the ratio of rise to run, known as the slope, remains constant for any line. By deriving the equation using...
Curated Video
Finding Slope on a Coordinate Plane Using Right Triangles
In this video, the teacher explains how to find the slope of a line on a coordinate plane when no right triangles are given. They emphasize that the ratio of rise to run is constant and defines the slope of the line.
Curated Video
Finding the Area of Polygons by Decomposing
In this video, the teacher explains how to find the area of polygons by breaking them down into familiar shapes such as triangles, rectangles, parallelograms, and trapezoids.
Curated Video
Beyond Limitations: Sadhguru explores the nature of the mind & its potential for growth
Are you ready to unleash your true potential? This video with Sadhguru delves into the hidden depths of your mind, revealing a transformative process that can empower you to live with more clarity, creativity, and joy.
Curated Video
Electricians working atop a New York City skyscraper on Friday installed the last of the 2,688 crystal triangles that give the Times Square New Year's Eve Ball its shimmer, including a panel dreamt up by a 12-year-old former cancer patient. (Dec. 27)
Electricians working atop a New York City skyscraper on Friday installed the last of the 2,688 crystal triangles that give the Times Square New Year's Eve Ball its shimmer, including a panel dreamt up by a 12-year-old former cancer...
Scholastic
Study Jams! Classify Triangles
Jam on with this multi-faceted activity teaching triangle classification. Start with a learner-paced lesson describing the different qualities of triangles and follow with a fun karaoke session. Also provided are two types...
Khan Academy
SAT Prep: Test 2 Section 6 Part 2
Reviewing the last problem from the previous video because he feels that he "rushed it," Sal again explains the concept of ratios as it applies to problem 6 on the practice SAT (page 472 in The Official SAT Study Guide). Additional...
Khan Academy
SAT Prep: Test 1 Section 9 Part 3
If it takes a long time to complete the problems on the math SAT, it doesn't matter if they are correct - the problems that are left over will count against the student's score. Sal takes care to show quicker ways to complete problems...
Khan Academy
SAT Prep: Test 1 Section 6 Part 4
Number 11 in the practice section of The Official SAT Study Guide begins with finding the perimeter of a given triangle. Once students solve this multiple-choice question, they can find ways to solve the additional problems on the page,...
Khan Academy
SAT Prep: Test 5 Section 9 Part 1
Reasoning through the methodology of a new set of problems from page 679 of The Official SAT Study Guide, Sal shows students how to find the ins and outs of increasingly difficult math problems. He advises them to thoroughly think over...
Curated OER
Telly Plays The Triangle
Big Bird gives Telly a lesson on living vs. non-living things in this film. Telly is afraid to play a musical instrument, a triangle, he is holding because he thinks he might hurt it. After Big Bird tells Telly the triangle isn't living,...
Khan Academy
SAT Prep: Test 3 Section 2 Part 4
Finding perimeters and slopes is the focus of this video, which details ways to solve problems 15-17 on the practice SAT. Even students who are confident in their ability to pass the SAT would benefit from this additional review.
Flipped Math
AAS and ASA
Sometimes one knows more about angles than about sides. Young mathematicians learn about the AAS and ASA triangle congruence criteria by watching an informative video. They use these shortcuts to demonstrate triangle congruence in...
Flipped Math
Unit 4 Review: Triangle Congruence
It's time to prove one's knowledge of triangle congruence proofs. Scholars watch a video to review triangle classifications and how to use properties of triangles to set up and solve equations for missing values. They also review the...
Flipped Math
CPCTC and HL Theorem
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...