Mississippi Math FA.A.4
The Standard
Simplify and evaluate numerical and algebraic expressions. (7.EE.1)
2025 Mississippi College- and Career-Readiness Standards for Mathematics
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students use distribution and combine like terms to rewrite expressions without changing their value. They substitute numbers for variables and follow the order of operations, even when the numbers are negative.
What Mastery Looks Like
- A student can simplify 3(2x-4)+5x to 11x-12, then find its value when x=-2. They can check their work by putting -2 into the original expression and getting the same result.
Common Misconceptions
- Students may turn 3x+2 into 5x, even though the terms are unlike. They may distribute to only the first term in parentheses or forget parentheses when substituting a negative number.
How to Assess It
- On an exit ticket, ask: Simplify 3(2x-4)+5x, then evaluate it when x=-2. Show where you used parentheses.
Lesson moves
Ways to Teach It
Build 2(x+3)+x with algebra tiles, lay out both groups, and collect matching tiles to show 3x+6.
Write two sentences explaining why 2(x+3) and 2x+3 give different values when x=4.
Deal cards labeled 3(x-2)+x, 4x-6, 2(x+1), and 2x+2; students match pairs and justify each match with written steps.
A bike rental costs $6 plus $3 per hour; write 6+3h, then find the cost for four hours.
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Printable FA.A.4 Worksheet
A ready-to-print activity worksheet aligned to FA.A.4, with an answer key for the teacher on its own page. No account needed.
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