Welcome to Math 1A

Please find a seat where you can learn.

About this course:•Introduction Letter• Course and pre-requisites• Teacher• Grades• Bathroom Procedures• Integrity• Tutorial• Electronics/Drinks Policy• Supplies•Notebook, paper, pencil, TI-84+

• Donations of soft tissues and dry erase markers would be greatly appreciated

Website:http://teachersites.schoolworld.com/webpages/SChildrey/

Objective:To interpret and

rewrite expressions

Warm-ups!Each day we will complete a warm-up. This is the warm-up structure:

Draw this out on your own paper or print it from the website each week.

What do you see?

What do you see?

5 -40

10

-7

What do you see?

2x + 7

What do you see?

2x - 7

What do you see?

2(x+7)

What do you see?

5n-

4n10n

11n

-2n

What do you see?

9x -

2y

-11a

What do you see?

2x+3x+77+5x

Vocabulary we developed:Algebraic Expression

CoefficientConstant

Distributive PropertyEquivalent Expression

IntegersLike Terms

Order of Operations Simplify

SubstituteTerm

Variable

Formal Definitions:

Algebraic Expression: A mathematical phrase that can include numbers, variables, and operation symbols (ex. 3y + 7)Coefficient: A number that is multiplied by a variable (ex. 5x)Constant: A value that does not change (ex. 4)Distributive Property: For every real number a, b, and c: a(b + c) = ab + ac and a(b-c) = ab – ac (ex. 4(x + 3) = 4x + 12)Equivalent Expression: Expressions that have the same value for all variablesIntegers: Positive and negative whole numbers (ex. 22, -3)

Like Terms: Have identical variables; that is, they have the same variable to the same exponent. Constants are like terms as well. (ex. 6x2 and 99x2 are like terms)Order of Operations: Parenthesis, Exponents, Multiplying and Dividing (left to right), Adding and Subtracting (left to right) PEMDAS!Simplify: To write an expression in simplest form (combine all like terms)Substitute: To replace a letter with a number or algebraic expression

Term: “parts” in an expression that are added or subtracted (ex. 4x2 + 3 -> 4x2 and 3 are terms)Variable: a letter that represents an unknown number

What words mean add, subtract, multiply, or divide?

Classwork:Writing Expressions

WS

Homework:

U1D1 HW Writing and Simplifying

Algebraic Expressions WS AND

get CCM IA letter signed by a parent/guardian