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1. (Marvin, Jesus, Math 7C, 7/8/11

2.  To What it is: lesson 1.1 is about variables and
expressions to identify variables, numerical
expressions and algebraic variables
 write algebraic expressions for word phrases
 To use the language of algebra to model real-
world problems

3.  Variable: Is a letter that stands for a number
 Algebraic expression; is a mathematical
phrase that uses variables, numbers and
operation symbols.

4.  1)identifying expressions
 Q. 5-5
 A. numerical expression
 B. C-5
 A. algebraic expression; c is the variable

5.  Identify each expression as numerical
expression or algebraic expression
 1)b+6
 2) 80/8
 3) 14-n
 4) 14x14

6. Identify as numerical or algebraic expressions
1) b+b
2) 14x14
Write a algebraic expression
3) 4 fewer n
3) 5 more k

7. 1) Algebraic
2) Numerical
3) 4-n
4) 5+k