**Unit 1: "Relationship Between Quantities"**

__Key Standards:__

__Reason quantitatively and use units to solve problems.__

**MCC9-12.N.Q.1**

Use units as a way to understand problems and to guide the solution of multi-step problems; choose and interpret units consistently in formulas; choose and interpret the scale and the origin in graphs and data

displays.

**MCC9-12.N.Q.2**

Define appropriate quantities for the purpose of descriptive modeling.

**MCC9-12.N.Q.3**

Choose a level of accuracy appropriate to limitations on measurement when reporting quantities.

__Interpret the structure of expressions__**MCC9-12.A.SSE.1**

Interpret expressions that represent a quantity in terms of its context.

**MCC9-12.A.SSE.1a**

Interpret parts of an expression, such as terms, factors, and coefficients.

MCC9-12.A.SSE.1b

MCC9-12.A.SSE.1b

Interpret complicated expressions by viewing one or more of their parts as a single entity.

__Create equations that describe numbers or relationships__**MCC9-12.A.CED.1**

Create equations and inequalities in one variable and use them to solve problems. Include equations arising from linear and quadratic functions, and simple rational and exponential functions.

**MCC9-12.A.CED.2**

Create equations in two or more variables to represent relationships between quantities; graph equations on coordinate axes with labels and scales.

**MCC9-12.A.CED.3**

Represent constraints by equations or inequalities, and by systems of equations and/or inequalities, and interpret solutions as viable or non-viable options in a modeling context.

**MCC9-12.A.CED.4**

Rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations

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