NY Next Generation Math NY-6.EE.2

NY-6.EE.2 is a cluster heading. These are the individual standards under it.

• NY-6.EE.2.a

  Write expressions that record operations with numbers and with letters standing for numbers.

• NY-6.EE.2.b

  Identify parts of an expression using mathematical terms (term, coefficient, sum, difference, product, factor, and quotient); view one or more parts of an expre...

• NY-6.EE.2.c

  Evaluate expressions given specific values for their variables. Include expressions that arise from formulas in real-world problems. Perform arithmetic operatio...

01

What Students Need to Do

Students write expressions in which letters represent numbers, read the expressions in words, and identify their parts. They substitute given values and evaluate using the conventional order of operations.

02

What Mastery Looks Like

A student writes “five less than twice n” as 2n - 5 and identifies 2 as the coefficient. When n = 4, the student evaluates the expression as 3 and explains each operation.

03

Common Misconceptions

Students may reverse subtraction, treat 2n as 2 + n, or call every number a coefficient. They may also substitute a value without using the correct order of operations.

04

How to Assess It

Give students 3x + 2² with x = 5. Ask them to name its terms and coefficient, read it aloud, and evaluate it.

1. 01

   Build expressions with variable, operation, and number cards, then label each term, factor, coefficient, sum, or product.

2. 02

   Ask students why “subtract y from 5” is written 5 - y rather than y - 5.

3. 03

   Play expression match by pairing verbal phrases, algebraic expressions, and evaluated values for a supplied variable.

4. 04

   Use V = s³ to calculate the volume of a cube after measuring and substituting a side length.

• NY-5.OA.2

  Write simple expressions that record calculations with numbers, and interpret numerical expressions without evaluating them.

• NY-6.EE.1

  Write and evaluate numerical expressions involving whole-number exponents.