Grade+6+Domain+3+Cluster+1

=Grade 6 Domain 3: Expressions and Equations= =Cluster 1: Apply and extend previous understandings of arithmetic to algebraic expressions.=

1. Write and evaluate numerical expressions involving whole-number exponents.
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External Resources:
 * //Houghton Mifflin Math Grade 6//, Chapter ?

2. Write, read, and evaluate expressions in which letters stand for numbers.
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External Resources:
 * //Houghton Mifflin Math Grade 6//, Chapter ?

2a. Write expressions that record operations with numbers and with letters standing for numbers. //For example, express the calculation "Subtract y from 5" as 5 - y.//
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External Resources:
 * //Houghton Mifflin Math Grade 6//, Chapter ?
 * Interactivate Whole Number Cruncher

===2b. 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 expressions 2 (8 + 7) as a product of two factors: view (8 + 7) as both a single entity and a sum of two terms.//===

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External Resources:
 * //Houghton Mifflin Math Grade 6//, Chapter ?

===2c. Evaluate expressions at specific values of their variables. Include expressions that arise from formulas used in real-world problems. Perform arithmetic operations, including those involving whole-number exponents, in the conventional order when there are no parentheses to specify a particular order (Order of Operations). //For example, use the formulas V = s//² //and A = 6 s//² //to find the volume and surface area of a cube with sides of length s = 1/2.//===

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External Resources:
 * //Houghton Mifflin Math Grade 6//, Chapter ?

===3. Apply the properties of operations to generate equivalent expressions. //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 + 18 to produce the equivalent expression 6 (4x + 3y); apply properties of operations to y + y + y to produce the equivalent expression 3y.//===

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External Resources:
 * //Houghton Mifflin Math Grade 6//, Chapter ?

===4. Identify when two expressions are equivalent (i.e., when the two expressions name the same number regardless of which value is substituted into them.) //For example, the expressions y + y + y and 3y are equivalent because they name the name number regardless of which number y stands for.//===

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External Resources:
 * //Houghton Mifflin Math Grade 6//, Chapter ?