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Copyright © Swun MathCopyright © Swun Math Grade 8 Unit 4 Lesson 8 P TE

Equations with Rational

Numbers

Procedural Lesson
Grade 8 · Unit 4 · Lesson 8
MC: 8.EE.7b

Problem of the Day

Objective: I will solve equations with rational number coefficients and constants.

Vocabulary Teacher Resources

Fractions:

1. Determine the LCD (least common
   denominator).


2. Multiply both sides by the LCD.


3. Use inverse operations to solve.

Decimals:

1. Determine the power of 10 that will clear
   the decimal.


2. Multiply both sides by the power of 10.


3. Use inverse operations to solve.

Considerations:

Tell students to simplify the equation to make

solving as efficient as possible. Practice clearing

equations of fractions and decimals to make

equations easier to work with. If necessary, work

with equations that have one fraction. A review

of LCD and using the distributive property to

clear fractions and decimals may be necessary.

Steps for Integers:

1. Collect like terms.


2. Isolate the variable.


3. Solve the equation.


4. Check by inserting the answer into the
   equation.

Application of MPs:

MP7: What observations do you make based on past

experience with similar problems?

When I decided to use the distributive

property, I was considering.

MP8: What happens to an equation containing

decimals when you multiply both sides by a

common power of ten?

When I multiply both sides by a common

power of ten, the equation.

1 2 3 4 5 6 7 8

* * * * ^ *

MPs

Applied MP

* Embedded MP

Student Journal Pages

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