Curated Video
Solving Word Problems on Coordinate Planes with the Pythagorean Theorem
In this video, the teacher explains how to solve word problems involving coordinate planes using the Pythagorean theorem. They demonstrate how to create right triangles on a coordinate plane and apply the Pythagorean theorem to find the...
Curated Video
Creating Right Triangles on a Coordinate Plane
In this video, the teacher explains how to create a right triangle on a coordinate plane using two points that form a diagonal line segment. They review the properties of right triangles and the Pythagorean theorem, and demonstrate...
Curated Video
Proving Diagonal Properties in Parallelograms
In this video, the teacher explains how to prove the properties of diagonals within parallelograms using parallel lines and triangle congruence theorems. They demonstrate the process through two examples: proving that the diagonals of a...
Curated Video
Using the Area of Squares Proof to Relate Side Lengths of a Right Triangle
In this lesson, students will learn about the relationship between the side lengths of a right triangle using the area of squares proof. They will understand that the sum of the areas of the squares formed by the two legs of a right...
Curated Video
Using Equations to Find Missing Angles
In this video, the teacher explains how equations can help us find missing angles in real-world situations, using the example of floor tiles. By examining the patterns and shapes, the teacher demonstrates how to determine the measure of...
Curated Video
Exploring Equivalent Fractions with Pattern Blocks
In this video, students are taught how to use pattern blocks to prove the equivalence of fractions. By building with pattern block shapes, they explore the concept of equivalent fractions and learn to identify the value of different...
Curated Video
Solving Non-Right Triangles Using the Law of Sines
In this video, you will learn how to find the missing side lengths of a non-right triangle using the Law of Sines. The Law of Sines relates the angle measures and side lengths of an oblique triangle.
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
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,...