Tennessee Academic Standards
TN.6.EE. Expressions and Equations (EE)
6.EE.A. Apply and extend previous understandings of arithmetic to algebraic expressions.
6.EE.A.1. Write and evaluate numerical expressions involving whole-number exponents.
6.EE.A.2. Write, read, and evaluate expressions in which variables stand for numbers.
6.EE.A.2.b. Identify parts of an expression using mathematical terms (sum, term, product, factor, quotient, coefficient); view one or more parts of an expression as a single entity. For example, describe the expression 2 (8 + 7) as a product of two factors; view (8 + 7) as both a single entity and a sum of two terms.
6.EE.A.3. Apply the properties of operations (including, but not limited to, commutative, associative, and distributive properties) to generate equivalent expressions. The distributive property is prominent here. For example, apply the distributive property to the expression 3 (2 + x) to produce the equivalent expression 6 + 3x; apply the distributive property to the expression 24x + 18y to produce the equivalent expression 6 (4x + 3y); apply properties of operations to y + y + y to produce the equivalent expression 3y.