Instructional Video
Khan Academy

Khan Academy: Adding & Subtracting Negative Numbers

For Students 6th - 7th Standards
Demonstrates with the help of a number line how to add and subtract 1-digit negative numbers. [4:06]
Instructional Video
Khan Academy

Khan Academy: Worked Example: Long Division With Remainders

For Students 4th Standards
Presents several examples of how to use long division to divide a 1-digit number into large numbers. [10:07]
Instructional Video
Khan Academy

Khan Academy: Adding Negative Numbers Example

For Students 7th
Demonstrates how to use a blank number line to visualize how to add three 2-digit negative numbers. [5:41]
Instructional Video
Math Playground

Math Playground: How Do You Multiply Decimals?

For Students 5th - 7th Standards
This video illustrates how to multiply numbers with digits to the right of the decimal point.
Instructional Video
Khan Academy

Khan Academy: Addition and Subtraction With Number Lines

For Students 2nd - 3rd Standards
Given a 2-digit addition or subtraction problem, video demonstrates how to decide which number line matches up with it. [1:56]
Instructional Video
Khan Academy

Khan Academy: Decimal Place Value

For Students 4th - 6th Standards
Video lecture offers an introduction to decimal place values and the value of decimal digits. [3:59]
Instructional Video
Crash Course

Crash Course Computer Science #1: Early Computing

For Students 9th - 10th
This video focuses on the early efforts of computing. Welcome to Crash Course Computer Science! Today, we're going to take a look at computing's origins, because even though our digital computers are relatively new, the need for...
Instructional Video
CK-12 Foundation

Ck 12: Elem Math: Finding the Maximum Number Given a Statement

For Students 3rd - 5th
[Free Registration/Login may be required to access all resource tools.] Video demonstrating how to find the highest number that would make a division statement true when one of the digits is unknown. [1:32]
Instructional Video
CK-12 Foundation

Ck 12: Elem Math: Finding the Minimum Number Given a Statement

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Video explaining how to find the smallest digit missing in a number that will make the given statement about the quotient true. [1:20]
Instructional Video
CK-12 Foundation

Ck 12: Elem Math: Finding the Missing Number

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Video explaining how to find the digit missing in a number that will make the given statement about the quotient true. [1:58]
Instructional Video
CK-12 Foundation

Ck 12: Elem Math: Overview of Addition (Sums to 1,000)

For Students 3rd - 4th
[Free Registration/Login may be required to access all resource tools.] Video demonstrating how to add two 3-digit numbers vertically with no regrouping. [1:04]
Instructional Video
CK-12 Foundation

Ck 12: Elem Math: Overview of Subtraction (Numbers to 1,000)

For Students 3rd - 4th
[Free Registration/Login may be required to access all resource tools.] Video demonstrating how to subtract two 3-digit numbers vertically with and without regrouping. [1:14]
Instructional Video
CK-12 Foundation

Ck 12: Elem Math: Overview of Decimal Multiplication

For Students 4th - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Video demonstrating how to multiply two decimal numbers together. Shows examples using numbers with 1 to 4 digits after the decimal point. [1:44]
Instructional Video
Khan Academy

Khan Academy: Prime Factorization: Prime Factorization

For Students 6th - 8th
This video shows how to find the prime factorization of a two-digit number and write the answer in exponential notation.
Instructional Video
Khan Academy

Khan Academy: Bit Zee Bot: 1. Bit Zee

For Students 9th - 10th
Bit-zee is a project designed to inspire students to explore math and science. It was created from everyday items (a hair dryer, tap light, alarm clock, digital camera, and a universal remote). See the following link for help with the...
Instructional Video
Khan Academy

Khan Academy: Divisibility Tests: The Why of the 3 Divisibility Rule

For Students 5th - 8th
Why you can add the digits to see if something is divisible by 3.
Instructional Video
Khan Academy

Khan Academy: Divisibility Tests: The Why of the 9 Divisibility Rule

For Students 5th - 8th
Why you can test divisibility by 9 by just adding the digits.
Instructional Video
Imagine Learning Classroom

Learn Zillion: Check Your Answer to an Addition Problem: Using Rounding (1)

For Students 4th
This is the first of two lessons in which you will learn how to check your answer to an addition problem by using rounding. This lesson deals with addition problems involving numbers with the same number of digits. [3:34]
Instructional Video
Imagine Learning Classroom

Learn Zillion: Check Your Answer to a Subtraction Problem: Using Rounding (1)

For Students 4th
This is the first of two lessons in which you will learn how to check your answer to a subtraction problem by using rounding. This lesson deals with subtraction problems involving numbers with the same number of digits. [4:20]
Instructional Video
Imagine Learning Classroom

Learn Zillion: Check Your Answer to an Addition Problem: Using Rounding (2)

For Students 4th
This is the second of two lessons in which you will learn how to check your answer to an addition problem by using rounding. This lesson deals with addition problems involving numbers with different numbers of digits. [4:13]
Instructional Video
Imagine Learning Classroom

Learn Zillion: Check Your Answer to a Subtraction Problem: Using Rounding (2)

For Students 4th
This is the second of two lessons in which you will learn how to check your answer to a subtraction problem by using rounding. This lesson deals with subtraction problems involving numbers with different numbers of digits. [4:42]
Instructional Video
Imagine Learning Classroom

Learn Zillion: Check Your Answer to a Multiplication Problem: Using Rounding (1)

For Students 4th
This is 1 of 2 lessons in which you will learn how to check your answer to a multiplication problem by using rounding. This lesson deals with multiplication problems involving single-digit products. [4:11]
Instructional Video
Khan Academy

Khan Academy: Bit Zee Bot: 29. Camera Wiring Update

For Students 9th - 10th
This video shows you how to reduce the complexity of your Bit-zee while improving the speed of your Bit-zee digital camera. [3:20]
Instructional Video
Imagine Learning Classroom

Learn Zillion: Divide by Powers of 10

For Students 4th Standards
In this lesson, you will learn about the relationship between digits on a place value chart by dividing by powers of 10. [6:08]

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