HSA-CED.A.2

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- HSA-CED.A.1Create 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.
- HSA-CED.A.2Create equations in two or more variables to represent relationships between quantities; graph equations on coordinate axes with labels and scales.
- HSA-CED.A.3Represent constraints by equations or inequalities, and by systems of equations and/or inequalities, and interpret solutions as viable or nonviable options in a modeling context. For example, represent inequalities describing nutritional and cost constraints on combinations of different foods.
- HSA-CED.A.4Rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations. For example, rearrange Ohmâ€™s law V = IR to highlight resistance R.

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## HSA-CED.A.2

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

178 Lesson(s)

### Ahoy team! What can you see? Finding functions.

12th Grade Math »
Unit: Basic Functions and Equations

12th Grade Math »
Unit: Basic Functions and Equations

Big Idea:

#### Students improve their teamwork skills by gathering and analyzing data to investigate a linear model.

Standards:

Favorites
(17)

Resources
(19)

Reflections
(2)

Big Idea:

#### Algebra is built on axioms and definitions and relies on proofs just as much as geometry.

Standards:

Favorites
(35)

Resources
(19)

Reflections
(2)

### Solving Linear Equations in Two Variables

Algebra I »
Unit: Making Informed Decisions with Systems of Equations

Algebra I »
Unit: Making Informed Decisions with Systems of Equations

Big Idea:

#### This MAP Classroom Challenge provides students with an engaging and thought-provoking activity about notebooks, pens and cash registers to learn about solving equations in two variables!

Standards:

Favorites
(12)

Resources
(26)

Reflections
(2)

### The Tortoise and the Hare Piece-wise Functions

Algebra II »
Unit: Modeling with Functions

Algebra II »
Unit: Modeling with Functions

Big Idea:

#### Will the tortoise win again? Students will not only find out but write a mathematical story about it.

Standards:

Favorites
(4)

Resources
(29)

Reflections
(1)

### Writing the Equation of A Linear Function (Day 2 of 2)

Algebra I »
Unit: Linear Functions

Algebra I »
Unit: Linear Functions

Big Idea:

#### This lesson allows students to understand how to use slope to write an explicit formula for a linear function.

Standards:

Favorites
(7)

Resources
(15)

### Writing the Equation for a Linear Function (Day 1 of 2)

Algebra I »
Unit: Linear Functions

Algebra I »
Unit: Linear Functions

Big Idea:

#### This lesson shows how to approach writing the equation of a line using multiple methods.

Standards:

Favorites
(6)

Resources
(11)

### Review of Polynomial Roots and Complex Numbers

Algebra II »
Unit: Polynomial Theorems and Graphs

Algebra II »
Unit: Polynomial Theorems and Graphs

Big Idea:

#### Arithmetic with polynomials and complex numbers are performed in similar ways, but powers of i have a meaning distinct from powers of variables.

Standards:

Favorites
(2)

Resources
(10)

### Solving Systems by Graphing

Algebra I »
Unit: Systems of Equations

Algebra I »
Unit: Systems of Equations

Big Idea:

#### As students gain confidence in graphing - and interpreting the intersection points on - systems of equations, we continue to see how this skill relates to guess and check.

Standards:

Favorites
(6)

Resources
(21)

Reflections
(1)

### Solving Two Variable Inequalities

Algebra I »
Unit: Extending Equations

Algebra I »
Unit: Extending Equations

Big Idea:

#### See how to use test points to determine how to determine the solution to a two-variable inequality.

Standards:

Favorites
(14)

Resources
(22)

Reflections
(1)

### Ahoy again! What can you see now? Building Rational Functions

12th Grade Math »
Unit: Rational Functions and Equations

12th Grade Math »
Unit: Rational Functions and Equations

Big Idea:

#### Students use “spyglasses” again to build context around rational functions and begin to develop an understanding of how a rational function behaves.

Standards:

Favorites
(2)

Resources
(31)

Reflections
(1)

### The Tortoise and The Hare Project Day 1

Algebra II »
Unit: Modeling with Functions

Algebra II »
Unit: Modeling with Functions

Big Idea:

#### Will the tortoise win again? Students will not only find out but write a mathematical story about it.

Standards:

Favorites
(6)

Resources
(31)

Reflections
(3)

### The Groupon Question: Solving Two Variable Equations

Algebra I »
Unit: Extending Equations

Algebra I »
Unit: Extending Equations

Big Idea:

#### An equation in two variables can have many solutions which are represented as ordered pairs in the coordinate plane.

Standards:

Favorites
(11)

Resources
(17)

Reflections
(1)

### Organizing a List and Guess & Check

Algebra I »
Unit: Systems of Equations

Algebra I »
Unit: Systems of Equations

Big Idea:

#### In order for guessing and checking to be useful and efficient, it’s important to have an idea of how to organize a list of possibilities.

Standards:

Favorites
(6)

Resources
(31)

Reflections
(1)

### What Should I Charge?

Algebra I »
Unit: Functions and Modeling

Algebra I »
Unit: Functions and Modeling

Big Idea:

#### This unit is about functions, modeling, and student choice. Today's lesson is an introduction to the final four weeks of school.

Standards:

Favorites
(8)

Resources
(28)

Reflections
(1)

### Transformation of Polynomial Functions

Algebra II »
Unit: Polynomial Functions

Algebra II »
Unit: Polynomial Functions

Big Idea:

#### Models support conceptual understanding of function transformations. From cube to cubic!

Standards:

Resources
(30)

Reflections
(2)

Common Core Math

### Kindergarten

### First Grade

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### HS Number & Quantity

### HS Algebra

### HS Functions

### HS Geometry

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### Ninth and Tenth Grade

### Kindergarten

### First grade

### Second grade

### Third Grade

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### Fifth grade

### Middle School

Kindergarten

First Grade

Second Grade

Third Grade

Fourth Grade

Fifth Grade

Sixth Grade

Seventh Grade

HS Number & Quantity

HS Algebra

HS Functions

HS Geometry

Kindergarten

First Grade

Second Grade

Third Grade

Fourth Grade

Fifth Grade

Sixth Grade

Seventh Grade

Eighth Grade

Ninth and Tenth Grade

Kindergarten

First grade

Second grade

Third Grade

Fourth grade

Fifth grade

Middle School