Download Warm-Up Activity

Warm-Up Activity
• Fold your notecard lengthwise
• Write your name (in large letters) on
blank side so it can be on your desk
• On the lined side of the notecard,
write a definition in your own words of
“variable” as it is used in math
Section 1-1
How do you model
relationships with
variables and
equations?
Vocabulary
• Variable- a symbol, usually a letter, that
represents one or more numbers
• Algebraic Expression- a mathematical phrase
that can include numbers, variables, and
operation symbols.
Vocab cont.
• Equation- a mathematical sentence that
uses an equal sign
• Open Sentence- an equation that contains one
or more variables