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Topic 10: Rational Expressions (Ch. 12)

    

Goals and Problem Sets Handout: Section DGI
Goals and Problem Sets Handout: Sections ABC and EFH 

 

Goal 1: Identify what a rational expression is (whole chapter)
Goal 2: Simplify (“reduce”) rational expressions (12 – 3)

Required tasks/resources  Optional tasks/resources
Video: Simplify Rational Expressions (22 min) More videos: Simplifying Rational Expressions (Khan Academy)
Problem Set: 12 - 3 More Explanation: PurpleMath Simplifying Rational Expressions

 

Goal 3:  Multiply and divide rational expressions (12 – 4)

Required tasks/resources  Optional tasks/resources

Videos: Multiplying and Dividing Rational Expressions 1
and
Multiplying and Dividing Rational Expressions 2 (Khan Academy; 5 min total; be patient if the site loads slowly.)

More Explanation: MathPortal Multiplying and Dividing Rational Expressions
Multiply and Divide Rational Expressions handout IXL practice: Multiply and Divide Rational Expressions
Problem Set: 12 - 4  

 

Goal 4: Find the least common denominator of two or more rational expressions   (12 – 6, additional handouts)
Goal 5: Add and subtract rational expressions (12 – 6)

Required tasks/resources for Section DGI  Optional tasks/resources for all sections
Read and take notes: RegentsPrep Adding and Subtracting Rational Expressions Video: Adding and Subtracting Rational Expressions Handout #4 and 7
IXL Practice: Add and Subtract Rational Expressions  Do 15 problems. Send me a screen shot of your final page showing the last problem, score, and time.  
Add and Subtract Rational Expressions handout  
Problem Set: "Finding Common Denominators" handout  
Problem Set: 12 - 6  

 

Optional: Solve rational equations

Required tasks/resources  Optional tasks/resources
None; this is an optional extension.   Video: Solving Rational Equations
    Problem Set: 12 - 7

 

Optional: Graph rational functions

Required tasks/resources  Optional tasks/resources
None; this is an optional extension.  CoolMath explanation: Graphing Rational Functions
Note: On Part 4, you only really have to understand the part on horizontal asymptotes. If you skip the stuff on obliques, you will still be able to do the rest of the topic.
   Problem Set: 12 - 2

 

Topic Summary

 Required tasks/resources

Problem Set: Chapter Review Assignment

 Optional tasks/resources