Welcome to Math 1A Please find a seat where you can learn.

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Presentation transcript:

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:

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? 2x + 7

What do you see? 2x - 7

What do you see? 2(x+7)

What do you see? 5n -4n 10n 11n -2n

What do you see? 9x9x -2y -11a

What do you see? 2x+3x+7 7+5x

Vocabulary we developed: Algebraic Expression Coefficient Constant Distributive Property Equivalent Expression Integers Like Terms Order of Operations Simplify Substitute Term 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 variables Integers: 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. 6x 2 and 99x 2 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. 4x > 4x 2 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