Lesson Planet
Search educational resources
  • Sign In Try It Free
  • AI Teacher Tools
    • Discover Resources Search reviewed educational resources by keyword, subject, grade, type, and more
    • Curriculum Manager (My Content) Manage saved and uploaded resources and folders To Access the Curriculum Manager Sign In or Join Now
    • Browse Resource Directory Browse educational resources by subject and topic
    • Curriculum Calendar Explore curriculum resources by date
    • Lesson Planning Articles Timely and inspiring teaching ideas that you can apply in your classroom
    • Our Story
    • Frequently Asked Questions
    • Testimonials
    • Contact Us
  • Pricing
  • School Access
    • Your school or district can sign up for Lesson Planet — with no cost to teachers
      Learn More
  • Sign In
  • Try It Free

Hi, what do you want to do?

Create a lesson plan
Create a lesson plan
Generate resources with 80+ AI teacher tools
Generate resources with 80+ AI teacher tools
Search 200,000 instructional videos
Search 200,000 instructional videos
Find a teaching resource
Find a teaching resource
Square Roots And Real Numbers, Pre-Algebra Instructional VideoSquare Roots And Real Numbers, Pre-Algebra Instructional Video
Publisher
Khan Academy
Resource Details
Curator Rating
Educator Rating
Not yet Rated
Grade
7th - 11th
Subjects
Math
1 more...
Resource Type
Instructional Videos
Media Length
10:19
Audiences
For Teacher Use
1 more...
Duration
15 mins
Instructional Strategies
Flipped Classroom
1 more...
Accessibility
Closed Captions
1 more...
Year
2010
Usage Permissions
Creative Commons
BY-NC-SA: 3.0
cc
Instructional Video

Square Roots And Real Numbers, Pre-Algebra

Curated and Reviewed by Lesson Planet

Sal works through several problems involving rational and irrational numbers and shows how to find the difference. This video is a good stepping stone for those preparing to take on more challenging algebra work.

75 Views 64 Downloads

Concepts

irrational numbers, real numbers, math applications, real-world applications, prime factors, radical expressions, square roots, radicals

Additional Tags

irrational numbers, prime factorization, real numbers, square roots, radical expressions, square root expressions, math

Classroom Considerations

  • This video is hosted on YouTube

See similar resources:

Worksheet

Number Sense and Numeration: Multiples, Factors and Square Roots

Curated OER
A great resource for any math teacher covering multiples, factors or square roots; this worksheet walks young mathematicians through the logic behind factoring and square roots with a systematic set of problems which gradually increase...
6th - 8th Math
Lesson Plan

Placing a Square Root on the Number Line

Illustrative Mathematics
There are many ways to approach finding the rational approximation of an unknown square root. Here is a problem that will help math learners make a connection between square roots and their order on a number line. As usual, determine two...
7th - 9th Math
CCSS: Designed
Lesson Plan

A Focus on Square Roots

EngageNY
Pupils learn to solve square root equations and rationalize denominators. Problems include those with extraneous solutions. 
10th - 12th Math
CCSS: Designed
Instructional Video

Understanding Square Roots, Pre-Algebra

Khan Academy
What is the square root of 100? Sal explains what the square root of 100 is, but he needs a little help explaining why. Note: This concept can be challenging for some. If you are showing this video to your class, it does not stand alone....
1 min 5th - 7th Math
Instructional Video

Solving Quadratic Equations by Square Roots, Algebra II

Khan Academy
Introducing square roots into the quadratic equation mix, Sal addresses the ways viewers might solve the problems, both correctly and incorrectly. The video is an integral step in not only Sal's algebra series but also in developing math...
11 mins 7th - 11th Math
Interactive

Square Roots and Irrational Numbers: Estimating Radicals

CK-12 Foundation
Try out a resource using triangles to estimate radicals. An interactive app allows learners to approximate some irrational numbers involving square roots. They find the two consecutive numbers that an irrational number lies between...
8th - 10th Math
Instructional Video

How Do You Figure Out if a Square Root is Bigger than Another Number?

Curated OER
You have been given a square root and need to compare that to a decimal number to find out which one is bigger. How can you make that comparison? One way to do this is to find the square root of the square root number and then compare it...
3 mins 6th - 12th Math
Instructional Video

What is the Product Property of Square Roots?

Curated OER
If your class has a grasp of square roots, but is having difficulty with the product property of square roots, this video might be for you! In the video, an instructor completes a short proof of the property, defines the property, and...
4 mins 8th - 11th Math
Instructional Video

How Do You Find the Square Root of a Fraction?

Curated OER
The instructor demonstrates how to find the square root of a fraction. She simply explains that you separate the numerator and denominator, meaning you find the square root of the numerator, and then you find the square root of the...
3 mins 6th - 12th Math
Instructional Video

What is the Product Property of Square Roots?

Curated OER
If your class has a grasp of square roots, but is having difficulty with the product property of square roots, this video might be for you! In the video, an instructor completes a short proof of the property, defines the property, and...
5 mins 6th - 12th Math
Try It Free
© 1999-2026 Learning Explorer, Inc.
Teacher Lesson Plans, Worksheets and Resources

Sign up for the Lesson Planet Monthly Newsletter

Open Educational Resources (OER)

  • Health
  • Language Arts
  • Languages
  • Math
  • Physical Education
  • Science
  • Social Studies
  • Special Education
  • Visual and Performing Arts
View All Lesson Plans

Discover Resources

  • Our Review Process
  • How it Works
  • How to Search
  • Create a Collection

Manage Curriculum

  • Edit a Collection
  • Assign to Students
  • Manage My Content
Contact Us Site Map Privacy Policy Terms of Use