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Common Core Standards

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I use this lesson to show my students how to add and subtract rational expressions that do not have common denominators. This corresponds to Section 11.4 of the Prentice Hall CA Algebra 1 textbook. I break this lesson into two days -- Day 1: I show them how to add and subtract with like denominators; Day 2: I show them how to add and subtract with unlike denominators. This is the PowerPoint lesson for Day 2.

There is a video in the lesson that describes how to work these problems, including the factoring of quadratic trinomials in order to simplify the answer. That makes this a great lesson for days when you have a substitute teacher, or for home teaching, or you can use that time to take roll while the lesson continues.

This is my fourth lesson in my unit on Rational Expressions & Equations.

**Powerpoint Lessons for Unit 14**

14.1 Simplifying Rational Expressions

14.2 Multiplying & Dividing Rational Expressions

14.3 Adding & Subtracting Rational Expressions – Day 1

14.4 Adding & Subtracting Rational Expressions – Day 2

14.5 Complex Fractions

14.6 Solving Rational Equations

14.7 Work Problems

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**Fun Reviews**

Operations with Rational Expressions Relay

Operations with Rational Expressions Scavenger Hunt

Solving Rational Equations Scavenger Hunt

Work Problems Scavenger Hunt

Simplifying Complex Fractions Scavenger Hunt

Solving Rational Equations (easy) Scavenger Hunt

Rational Expressions & Equations Jeopardy

**Save Money! Buy Bundles!**

Get all 7 activities at a 30% discount!

**For fun ways to review other important topics, try these:**

Scavenger Hunts

Fun PowerPoint Review Games

Relays

Tic Tac Toes

Partner Problems

Bingos

*Common Core Standards*

A-REI 2. Solve simple rational and radical equations in one variable, and give examples showing how extraneous solutions may arise.

A-APR 7. Understand that rational expressions form a system analogous to the rational numbers, closed under addition, subtraction, multiplication, and division by a nonzero rational expression; add, subtract, multiply, and divide rational expressions.

Previous California Standards for Algebra 1:

12.0 Students simplify fractions with polynomials in the numerator and denominator by factoring both and reducing them to the lowest terms.

13.0 Students add, subtract, multiply, and divide rational expressions and functions. Students solve both computationally and conceptually challenging problems by using these techniques.

There is a video in the lesson that describes how to work these problems, including the factoring of quadratic trinomials in order to simplify the answer. That makes this a great lesson for days when you have a substitute teacher, or for home teaching, or you can use that time to take roll while the lesson continues.

This is my fourth lesson in my unit on Rational Expressions & Equations.

14.1 Simplifying Rational Expressions

14.2 Multiplying & Dividing Rational Expressions

14.3 Adding & Subtracting Rational Expressions – Day 1

14.4 Adding & Subtracting Rational Expressions – Day 2

14.5 Complex Fractions

14.6 Solving Rational Equations

14.7 Work Problems

Get all 7 lessons & all 7 activities at a 30% discount!

Operations with Rational Expressions Relay

Operations with Rational Expressions Scavenger Hunt

Solving Rational Equations Scavenger Hunt

Work Problems Scavenger Hunt

Simplifying Complex Fractions Scavenger Hunt

Solving Rational Equations (easy) Scavenger Hunt

Rational Expressions & Equations Jeopardy

Get all 7 activities at a 30% discount!

Scavenger Hunts

Fun PowerPoint Review Games

Relays

Tic Tac Toes

Partner Problems

Bingos

A-REI 2. Solve simple rational and radical equations in one variable, and give examples showing how extraneous solutions may arise.

A-APR 7. Understand that rational expressions form a system analogous to the rational numbers, closed under addition, subtraction, multiplication, and division by a nonzero rational expression; add, subtract, multiply, and divide rational expressions.

Previous California Standards for Algebra 1:

12.0 Students simplify fractions with polynomials in the numerator and denominator by factoring both and reducing them to the lowest terms.

13.0 Students add, subtract, multiply, and divide rational expressions and functions. Students solve both computationally and conceptually challenging problems by using these techniques.

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