1. Warm Up
Group the following apples, oranges, & bananas together and write as an algebraic expression. Now in your own words, give a definition for algebraic expression.

2. Essential Question: How do we translate a word phrase into an algebraic expression or an algebraic expression into a word phrase?

3. Write the operation (+,-, x, ) that corresponds to each phrase.
1. Divided by
2. Difference
3. More than
4. Product
5. Minus
6. Sum
7. Quotient
8. Multiplied by
Note: In order to translate a word phrase into an algebraic expression, we must first know some key word phrases for the basic operations.

4. Here are some other key words.
Addition
More than
Increase by
Greater than
Add
Total
Plus
Sum
Subtraction
Decreased by
Difference between
Take Away
Less
Subtract
Less than*
Subtract from*
Multiplication
Product
Times
Multiply Of
Twice or double
Triple
Division
Quotient
Divide
Divided by
Split equally

5. Note:
Division expressions should be written using the fraction bar instead of the traditional division sign.
Multiplication expressions should be written in side-by-side form, with the number always in front of the variable.
3a t c f

6. More Examples: the product of 3 and a number t 3 more than x
twice the number x
4.2 times a number e
a number t decreased by 4
the difference between 10 and a number y
3 more than x
the sum of 10 and a number c
a number n increased by 4.5
the number y divided
by 2
6 less than a number z

7. When solving real-world problems, you will need to translate words, or verbal expressions, into algebraic expressions.
For Example: Although they are closely related, a Great Dane weighs about 40 times as much as a Chihuahua.
What could we use to express the weight of the Great Dane? What does it mean?

8. Day 2 EQ: How do we interpret parts of an algebraic expression?
Standard: MCC9‐12.A.SSE.1a- Interpret parts of an expression, such as terms, factors, and coefficients.

9. Key Concepts
• Expressions are made up of terms. A term is a number, a variable, or the product of a number and variable(s). An addition or subtraction sign separates each term of an expression.
• For example: 4x² + 3x + 7,
•How many terms do we have?

10. 3x2 Pieces of a term Exponent (the little number above the variable)
Coefficient (number in front of the variable)
Exponent (the little number above the variable)
Variable (the letter)
Pieces of a term
3x2

11. Pieces of a term
3x2
The factors of each term are the numbers or expressions that when multiplied produce a given product.

12. List the following for the expression 2x² + 6x - 8
Terms
Factors
Coefficients
Constants

13. List the following for the expression x² + 10x + 25
Terms
Factors
Coefficients
Constants

14. List the following for the expression 9x² - 6x + 1
Terms
Factors
Coefficients
Constants

15. List the following for the expression 5x² -14x - 3
Terms
Factors
Coefficients
Constants

16. List the following for the expression 5x(2x + 3) – 2(x + 7)
Terms
Factors
Coefficients
Constants

17. List the following for the expression (-5m + 5) + 2(-4 + 7m - 4m²)
Terms
Factors
Coefficients
Constants