Sophia Learning
Sophia: Subtracting Vectors Using the Tail to Tip Method: Lesson 1
This lesson demonstrates how to subtract vectors using the tail-to-tip method. It is 1 of 2 in the series titled "Subtracting Vectors Using the Tail-to-Tip Method." [8:05]
Sophia Learning
Sophia: Triangle Congruence Theorem (Hl): Lesson 1
This lesson will present the Hypotenuse-Leg Triangle Congruence Theorem. It is 1 of 5 in the series titled "Triangle Congruence Theorem (HL)." [5:01]
Sophia Learning
Sophia: Using Matrices to Organize Data: Lesson 4
This lesson provides real-world examples that demonstrate how to organize data into matrices. It is 4 of 5 in the series titled "Using Matrices to Organize Data." [8:40]
Virtual Nerd
Virtual Nerd: Construct Equilateral Triangle and Square Inscribed in a Circle
Two videos on geometric constructions. One explains how to construct an equilateral triangle using a ruler and compass. The second describes how to draw a square using a compass and a straightedge.
Khan Academy
Khan Academy: Algebra: Matrices: Matrix Multiplication (Part 1)
A lesson on multiplying matrices. Gives an example of two 2 X 2 matrices being multiplied. Illustrates that matrix multiplication is not commutative and that the order in which matrices are multiplied is important. [13:41]
Khan Academy
Khan Academy: Trigonometry: Radians: Example: Radian Measure and Arc Length
This video shows an example that thinks about the relationship between an arc length and the angle that is subtended by the arc. [3:29]
Khan Academy
Khan Academy: Triangles: Fill in the Blank Triangle Proofs Example 1
In this video, we listen to how a geometry exercise is completed as the presenter demonstrates the reasoning behind proving that the corresponding parts of triangles are congruent. [9:42]
Khan Academy
Khan Academy: Algebra: Complex Numbers
Video explains what complex numbers are and shows how to write them. Includes an example of writing a real number as a complex number. [2:21]
Khan Academy
Khan Academy: Algebra: Simplifying Expressions With Exponents
Video simplifying a monomial by using the product of a power and negative exponent rules. [2:10]
Khan Academy
Khan Academy: Algebra: Simplifying Expressions With Exponents 2
Video simplifying a rational algebraic expression using the power of a power, power of a product and quotient of powers rules. [3:35]
Virtual Nerd
Virtual Nerd: What Are Parallel Lines?
Lines that are parallel have a very special quality. This tutorial takes a look at parallel lines and how they are different from other types of lines. [4:06]
Virtual Nerd
Virtual Nerd: What Are Perpendicular Lines?
The angles formed by perpendicular lines will always be the same. Take a look at this tutorial to learn about perpendicular lines and see a special trick involving them. [5:22]
Imagine Learning Classroom
Learn Zillion: Lesson Video: 'Show Angle Relationships in Cyclic Quadrilaterals'
In this lesson, you will show angle relationships in cyclic quadrilaterals by using the Central Angle Theorem. [3:27]
Virtual Nerd
Virtual Nerd: What Are Rational Exponents?
This video describing rational exponents and giving examples can be used to help prepare for the SAT. You will learn how to rewrite an expression with a rational exponent in several ways. [8:09]
Virtual Nerd
Virtual Nerd: How Do You Multiply a Matrix by a Scalar?
To multiply a matrix by a scalar, just multiply each element in the matrix by the scalar. View this tutorial to see the entire process. [2:28]
Sophia Learning
Sophia: Coordinate Geometry of Parallelograms
This lesson will demonstrate how to use slope, midpoint, and distance formulas to determine from the coordinates of the vertices if a quadrilateral is a parallelogram in a coordinate plane. Students can check their understanding with an...
Sophia Learning
Sophia: Coordinate Geometry of Rectangles
Coordinate geometry of rectangles is investigated in this video lesson. The tutorial demonstrates how to use the midpoint, distance, and slope formulas to determine if a quadrilateral is a rectangle on a coordinate plane. [17:26]
Sophia Learning
Sophia: Determining the Congruence of Triangles
This video tutorial describes four ways to determine if two triangles are congruent. Students can check their understanding with an assessment. [5:40]
Sophia Learning
Sophia: Determining the Congruence of Triangles
Congruent triangles are investigated in this video lesson. The tutorial demonstrates how to use four tricks to determine if triangles are congruent. Students can check their understanding with an assessment. [5:27]
Sophia Learning
Sophia: Graphing a Linear Equation in Point Slope Form
Students watch a video lesson about how to graph a linear equation in point-slope form. The tutorial includes detailed examples. Accompanied by a short multiple-choice quiz. [3:54]
Sophia Learning
Sophia: Scalar Multiplication
Explore how to multiply matrices using scalar multiplication and then assess learning with a quiz. [6:23]
Sophia Learning
Sophia: Subtracting Vector Components
Find out how to subtract vector components by following the example in this video presentation. [7:35]
Sophia Learning
Sophia: Finding the Equation of a Circle: Lesson 3
This lesson derives the equation for a circle starting from the distance formula. It is 3 of 9 in the series titled "Finding the Equation of a Circle." [4:32]
Sophia Learning
Sophia: Average Velocity & Sign Notation: Lesson 1
This lesson explains how average velocity can be represented by a positive or negative sign. It is 1 of 2 in the series titled "Average Velocity & Sign Notation." [6:44]