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
Introduction to Rational Functions - Concept Instructional VideoIntroduction to Rational Functions - Concept Instructional Video
Publisher
Brightstorm
Resource Details
Curator Rating
Educator Rating
Not yet Rated
Grade
8th - 10th
Subjects
Math
1 more...
Resource Type
Instructional Videos
Media Length
1:28
Audiences
For Teacher Use
1 more...
Duration
30 mins
Instructional Strategy
Direct Instruction
Technology
Video
Internet Access
Instructional Video

Introduction to Rational Functions - Concept

Curated and Reviewed by Lesson Planet
This Introduction to Rational Functions - Concept instructional video also includes:
  • Introduction to Rational Functions - Problem 1
  • Introduction to Rational Functions - Problem 2
  • Introduction to Rational Functions - Problem 3
  • Introduction to Rational Functions - Problem 4
  • Introduction to Rational Functions - Problem 5
  • Introduction to Rational Functions - Problem 6
  • Introduction to Rational Functions - Problem 7
  • Introduction to Rational Functions - Problem 8
  • Join to access all included materials

Let's be rational about it. An instructive resource provides the definition of rational expressions and rational functions. Examples provide an explanation on how to determine excluded values from the domain. The resource continues to make the connections between excluded domain values and asymptotes, and includes examples show how to use transformations to move the asymptotes and sketch graphs.

3 Views 3 Downloads

Concepts

rational expressions, rational functions, domain, asymptotes, simplify rational expressions

Additional Tags

math

Instructional Ideas

  • Review with the class domain and range
  • Go over function transformations to be sure all pupils are comfortable with them

Classroom Considerations

  • Some class members will confuse finding excluded values with solving the rational expression

Pros

  • Some of the videos have transcripts
  • Contains several different levels of problems

Cons

  • None

See similar resources:

Lesson Plan

Linear Piecewise Functions

Curated OER
Students explore the concept of piecewise functions. In this piecewise functions lesson, students graph piecewise functions by hand and find the domain and range. Students make tables of values given a piecewise function. Students write...
10th - 12th Math
Assessment

Quiz 1: Functions, Domain and Range

Mt. San Antonio Collage
Take the work out of worksheets and use these problems and worked-out answer key as a resource. The problems reinforce skills in domain and range, identifying graphs, and even and odd functions.
9th - 12th Math
CCSS: Adaptable
Instructional Video

Solving Rational Equations 2, Polynomial and Rational Functions, Algebra II

Khan Academy
This video focuses on rational expressions and completes Sal's lecture series on working with and solving this particular type of equation. Its length would be ideal for a computer lab visit or homework assignment (in conjunction with a...
4 mins 7th - 11th Math
Instructional Video

Khan Academy: Linear Algebra: A More Formal Understanding of Functions

Khan Academy
A more formal understanding of functions. This video introduces the term codomain and contrasts it with the term range. It also introduces the terminology scalar-valued function, real-valued function, and vector-valued function. [16:01]
9th - 10th Math
CCSS: Adaptable
Activity

Rational and Radical Functions

Other
A look into the graphs of rational and radical functions.
9th - 10th Math
CCSS: Adaptable
Instructional Video

How Do You Find Excluded Values?

Curated OER
Teach excluded values with this video. Using a real example, a lecturer breaks down how to find the excluded values of a rational expression. She defines what an excluded value is and completes the problem, explaining each step along the...
4 mins 8th - 11th Math
Instructional Video

What's an Excluded Value?

Curated OER
What is the term that is applied when a variable's value makes the denominator in an expression zero? It's called an excluded value. This is something pretty important to know because a rational expression cannot be divided by zero and...
2 mins 8th - 11th Math
Instructional Video

How Do You Find Excluded Values?

Curated OER
Teach excluded values with this video. Using a real example, a lecturer breaks down how to find the excluded values of a rational expression. She defines what an excluded value is and completes the problem, explaining each step along the...
5 mins 6th - 12th Math
Lesson Plan

Graphs of Rational Functions

Texas Instruments
Take your kids on a tour of graphing rational functions. Using this TI activity, high schoolers identify the end behavior of their functions. They find the domain and range, describe end behavior, and look at asymptotes and restrictions...
9th - 12th Math
CCSS: Designed
Instructional Video

How Do You Divide Two Rational Expressions?

Curated OER
An instructor walks viewers through a complicated problem in which she divides 2 rational expressions. For this problem, she has to find excluded values, use the zero product property, multiply, divide, cancel, and simplify. This video...
10 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