## domingo, 11 de setembro de 2011

### Simplifying Expressions

Objective: Today you will use the commutative, associative, and distributive properties to simplify algebraic expressions.

Vocabulary: term, like terms, coefficient, constant, commutative, associative, and distributive properties

You will be able to say "I know"
1. How to use the commutative, associative, and distributive properties to simplify algebraic expressions.
2. How to apply simplifying expressions to perimeter problems.
3. How to write algebraic expressions and equations from words

In stations you will watch videos and work examples at the following sites:
Simplifying Algebraic Expressions
Simplifying Algebraic Expressions #2

Simplifying Expressions 1
Simplifying Example 2
Simplifying Example 3
Simplifying Example 4

Writing Algebraic Equations
Translate from words to algebra "5 less than twice a number"

Discussion: Consider -(a + b - c + d)
What is the effect of distributing the -1?

Application: The length of a rectangle is 4 units less than the width, w.  Write an expression for the length of the rectangle.

#### Um comentário:

1. Simplifying expression is a part of algebraic expressions,quadratic expression and linear equations.In exams most of the questions are picked up from it.
Standard Form