Wyoming Math 6.EE.2b
The Standard
Write, read, and evaluate expressions in which letters stand for numbers. Identify parts of an expression using mathematical terms (sum, difference, term, product, factor, quotient, coefficient, constant).
2023 Wyoming Mathematics Content and Performance Standards · Apply and extend previous understandings of arithmetic to algebraic expressions.
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students write expressions from words, read them aloud, and substitute numbers to find their values. They name sums, differences, products, quotients, terms, factors, coefficients, and constants.
What Mastery Looks Like
- A student writes 4x + 7 for 'seven more than four times x' and gets 15 when x = 2. They identify 4 and x as factors of 4x, 4 as the coefficient, 7 as the constant, and 4x and 7 as terms.
Common Misconceptions
- Students may read 4x as 4 + x or translate 'seven less than x' as 7 - x. They may call 4 the constant in 4x + 7 or split 12/y into two terms.
How to Assess It
- On an exit slip, ask students to write an expression for 'eight more than three times x, then subtract twelve divided by y.' Have them evaluate it for x = 2 and y = 3, then label its terms, coefficient, constant, and quotient.
Lesson moves
Ways to Teach It
Give pairs cards marked 4x, +, 7, −, and 12/y; have them build an expression and label its terms, coefficient, and quotient.
Ask students to write an expression for 'five more than twice n' and explain why 5n + 2 does not fit.
Play expression bingo: call out 'coefficient of 6x + 4,' 'constant,' or 'value when x = 2'; students mark the answers.
Show a $5 sandwich price tag and a $2 delivery fee; students write 3p + 2 and find the cost of three sandwiches.
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Printable 6.EE.2b Worksheet
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Related Standards
- 5.OA.2
Write simple expressions requiring parentheses that record calculations with numbers, and interpret numerical expressions without evaluating them.
- 6.EE.2c
Use Order of Operations to evaluate algebraic expressions using positive rational numbers and whole-number exponents. Include expressions that arise from formul...
- 6.EE.6
Use variables to represent unknown numbers and write expressions when solving a real-world or mathematical problem.
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