Objective

• Write, read, and evaluate variable expressions

• Apply the order of operations on expression with variables, including those with exponents

• Translate an expression from it’s to an algebraic expression and vice versa 

• Identify parts of expressions using appropriate mathematical vocabulary.

Vocabulary

• Coefficient: the known number that is a factor of a variable term.

• Constant: a term that is a known number without variables.

• Variable: a letter that stands for an unknown number

• Term: a known number, a variable, or the product of a known number and variables

• Variable term: a term that includes variables

Algebraic Expressions

Sandy had 18 necklaces.  She gave 4 necklaces to Judy and 3 necklaces to   Monica. How many necklaces does she have left?

Roy had $8.  He then worked 4 hours and got paid $5 each hour. How much money does he have after getting paid?

Tiffany brought $30 to the mall and spent $14 on a softball and $6 for a snack.  Which expression matches the situation?

Which expression shows the cost of one adult admission ticket and 9 ferris wheel ride tickets?

Ashley and Jessica each paid $12 for admission.  They bought 14 ferris wheel ride tickets.  Which expression shows their cost?

Emily bought a child admission ticket and 6 carousel ride tickets.  She used a coupon for a $5 discount.  Which expression shows Emily’s total cost?