Chapter Three:  Equations

Take notes on the following topics.

Chapter Three

Section 3.1

Section 3.2

Section 3.3

Section 3.4

Section 3.5

Section 3.6

Section 3.7

Section 3.8

Section 3.9

Section 3.10

Section 3.11

Section 3.12

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Section 3.4:  Expressions and Equations

Translating phrases to algebraic expressions.

Example 1: 5 times the quantity 3 less than a number

Solution: 5(n - 3)

Example 2: The sum of a number and 4 divided by 2

Solution: (n + 4)/2

Example 3: 14 less than 3 times a number

Solution: 3n - 14

 

Problem Solving Guidelines

Phase 1: UNDERSTAND the problem

What am I trying to find?

What data am I given?

Have I ever solve a similar problem?

Phase 2: Develop and carry out a PLAN What strategies might I use to solve the problem? How can I correctly carry out the strategies I select?

Phase 3:Find the ANSWER and CHECK Does the proposed solution check? What is the answer to the problem? Does the answer seem reasonable? Have I stated the answer clearly?

Take class notes.

Before starting your homework, rework the examples that are illustrated in this section of your textbook and the examples that I demonstrated in class. 

Then do your homework.

Write down questions (examples or concept that you do not understand).......then.............. Ask these questions in class.