# Unit 3 (Expressions Unit)

### By: Christian Onwusibe

## Standard MCC6.EE.2

MCC6.EE.2: Write, read, and evaluate expressions in which letters stand for numbers. Evaluate Expression (ex: y=2 what is y+3)

## Standard MCC6.EE.2c

MCC6.EE.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=s3 and A=6s2 to find the volute and surface area of a cube with sides of length s=1/2. Order of Operations

## Standard MCC6.EE.4

MCC6.EE.4: Identify when two expressions are equivalent (i.e., when the two expression 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 same number regardless of which number y stands for. Equivalent Expression

## Standard MCC6.EE.3

MCC6.EE.3: Apply the properites 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=18y to produce the equivalent expression 6(4x+3y); apply properties of operations to y+y+y to produce the equivalent expression 3y. Distributive Property

## Standard MCC6.EE.2a

MCC6.EE.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. Write Expression

## Standard MCC6.EE.2b

MCC6.EE.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 expression 2 (8+7) as a product of two factors; view (8+7) as both a single entity and a sum of two terms. Vocabulary: sum, term, product, factor, quotient, coefficient

## Review Game

This is a link to a review game that will help you understand expressions a bit more.

## Expressions

Expressions are a little bit hard to learn,but I think you can handle it.\Here are the parts of an expression Ex: 5x-3 5=coefficent x=variable 3=constant