Videos [1–100 of 14794 videos]

04:15
Evaluating Trigonometric Expressions Involving Special Angles

02:04
Forming an Equation to Describe the Translation of a Given Function

01:48
Graphs of Cube Root Functions

01:51
Using Periodic Identities to Find the Value of a Trigonometric Function Involving Special Angles

01:35
Adding FourDigit Numbers Using a Place Value Table

01:16
Adding FourDigit Numbers Using Column Addition

02:44
Adding Two Integer Numbers

01:36
Marking Decimals on a Number Line

02:45
Adding Different Notes to Find the Total Amount of Money

01:47
Adding Different Notes to Find the Total Amount of Money

01:20
Adding TwoDigit Numbers to Solve Word Problems

02:25
Converting Fractions and Decimals Using Counters

01:10
Factors of Fifteen

01:02
Factors of Six

01:52
Factors of Twelve

02:56
Using Fraction Models to Understand Tenths

02:05
Writing the Decimal Number That Matches a Given Model

01:44
Calculating a Correlation Coefficient from Calculated Sum of Squares

04:28
Calculating and Interpreting a Correlation Coefficient from Raw Data

02:35
Choosing the Most Likely Correlation Coefficient Based on a Scatter Plot

01:33
Dividing a OneDigit Number by Itself

01:35
Dividing Zero

02:10
Interpreting a Correlation Coefficient

01:41
Selecting a Correlation Coefficient That Indicates the Weakest Correlation

02:34
Adding FourDigit Numbers to Solve Word Problems

03:50
Adding FourDigit Numbers Using Bar Models

02:13
Finding the Dot and the Cross Product of Vectors

02:33
Finding the Value of an Expression of Vectors Using the Scalar Triple Product

01:28
Finding the Volume of a Parallelepiped

02:32
Solving Word Problems Involving Subtraction of Two Multidigit Numbers

03:04
Using the Scalar Triple Product to Find an Unknown

16:26
Scalar Triple Product

04:05
Adding Two Whole Numbers

04:43
Adding Two Whole Numbers

01:49
Choosing the Best Approximate Measure to the Given Angle

01:25
Determining the Measure of an Angle Using the Protractor

01:13
Determining the Type of Angle

01:16
Identifying the Acute Angle

01:09
Subtracting Two Multidigit Numbers

03:27
Subtracting Two Multidigit Numbers

02:04
Circular Sectors and Area of Circles

02:34
Circular Sectors and Areas of Circles

03:03
Circular Sectors and Areas of Circles

01:23
Deriving a Formula for Calculating the Area of a Sector When Using Radians

01:12
Determining the Probability of an Event Involving Mutually Exclusive Events

00:52
Determining the Probability of Union of Two Mutually Exclusive Events

02:15
Determining the Union of Two Mutually Exclusive Events

02:42
Finding the Length of the Arc given the Area of the Sector and the Central Angle

00:35
Finding the Probability of Intersection of Two Mutually Exclusive Events

01:16
Finding the Probability of Union of Complement of Two Mutually Exclusive Events

04:04
Comparing the Magnitude of Adding Two Vectors in a ThreeDimensional Plane to the Sum of Their Magnitudes

05:30
Calculating Spearman’s Correlation Coefficient for a Bivariate Dataset

03:10
Calculating the Dot Product of Vectors

09:58
Calculating the Scalar Product of Two Vectors Shown on a Grid

04:28
Calculating the Scalar Product of Two Vectors Shown on a Grid

01:16
Comparing the Increase in Distance Moved by Two Objects

03:09
Creating Exponential Equations in Two Variables

03:51
Determining the Value of a Vector From an Equation and the Coordinates of Points

04:33
Determining Values of Distance on a DistanceTime Graph

14:06
Division Rules for 0 and 1

05:36
Finding Spearman’s Correlation Coefficient for Bivariate Data

05:18
Finding Spearman’s Correlation Coefficient for Bivariate Data

03:35
Finding the Components of a Vector from Its Magnitude and Argument

01:59
Finding the Cross Product of Two Parallel Vectors Represented in a Given Figure

06:07
Finding the Impulse and the Average Force Exerted by a Barrier at Its Collision with a Moving Body

02:42
Finding the Instantaneous Speed of an Object Given a DisplacementTime Graph

02:03
Finding the Magnitude of a Vector from Its Argument and One of Its Components

02:28
Finding the Magnitude of a Vector Given Its Argument and One of Its Components

04:09
Finding the Speed of an Object Given a Tangent to a Curve on a DisplacementTime Graph

09:11
Finding Two Unknown Components in a Force Vector given the Vector of the Moment of the Force about the Origin in Three Dimensions

03:19
Forming a Quadratic Equation in the Simplest Form given Its Roots

02:59
Forming a Quadratic Equation in the Simplest Form Using the Relation between the Coefficient of a Quadratic Function and Its Roots

03:24
Forming Quadratic Equations in the Simplest Form given Their Roots

04:38
Forming Quadratic Equations in the Simplest Form Using the Relation between a Quadratic Equation and Its Roots

03:34
Graphs of Linear Inequalities

01:16
Identifying the Instantaneous Speed of an Object at a Point on a Curve on a DisplacementTime Graph

01:23
Multiplying Vectors by Scalars

02:18
Multiplying Vectors by Scalars

01:35
Multiplying Vectors by Scalars

18:34
Pearson’s Correlation Coefficient

03:09
Proving the Similarity of Two Triangles

06:49
Solving Problems Involving Angles of Depression Using the Law of Sines

02:47
Solving Problems Involving Parallel and Perpendicular Vectors in 2D

03:19
Solving Quadratic Equations Using the Quadratic Formula

03:37
Solving Quadratic Equations Using the Quadratic Formula

03:14
Solving Quadratic Equations Using the Quadratic Formula

03:17
Solving Simple Absolute Value Equations

03:07
Understanding Cells Tissues and Organs

03:31
Using the Operators of Vectors and Dot Product Between them to Find the Value of an Expression

02:29
Adding Two Vectors Given in Component Form

02:55
Applying Properties of Similarity

03:41
Applying the Vector Product to Unit Vectors

11:13
Bar Models: Numbers up to 10,000

06:31
Calculating the Average Velocity of a Cyclist

02:45
Calculating the Magnitude of the Vector Product of Two Vectors Given Their Lengths and the Angle between Them

04:35
Calculating the Vector Product of Two Vectors Shown on a 3d Grid

04:46
Calculating the Vector Product of Two Vectors Shown on a 3D Grid

05:20
Calculating the Vector Product of Two Vectors Shown on a 3D Grid

05:42
Calculating the Vector Product of Two Vectors Shown on a Grid

03:50
Calculating the Vector Product of Two Vectors Shown on a Grid