Download Parts of an Expression

Expression Unit: A-SSE.1a
Identifying parts of an expression.
Expression Vocabulary
•
Expression- An algebraic expression is a mathematical phrase that can contain ordinary numbers,
variables (like x or y) and operators (like add, subtract, multiply, and divide).
• Term- Mathematical expressions that contain constant (number) and variables (letters). A number
that is by itself is called constant and a number that is attached to a variable is called a coefficient.
Terms are separated by addition or subtraction. Terms are joined together by multiplication.
A polynomial term cannot have a square root of a variable, no fractional exponents, and no variables
in the denominator of any fraction.
• Variables- A letter that represents a value or unknown.
• Coefficient- a number that is attached to a variable by multiplication. (number in front of the
variable)
• Like Terms- have the same variable(s) and the same degree (exponent) for each variable.
• Factors- one of two or more numbers and/or variables, that when multiplied together produce a
given product.
Expression Vocabulary
https://www.youtube.com/watch?v=8SB41mrH4oo
Identifying like terms
https://www.youtube.com/watch?v=8GOo6QsFAEU
Standard Form
Standard form of an expression:
1. Terms are placed in order from highest
exponent to lowest exponent.
2. Terms are also placed in alphabetical order.
https://www.youtube.com/watch?v=lPNNqLHtbIs
Factors

https://www.youtube.com/watch?v=bpMODKm_8zU