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Learning resources brought to you by Tucson Unified's Curriculum and Instruction

We've provided a rich selection of free, fun online learning sources in English language arts (ELA), math, science, and visual arts to supplement your learning. These are organized by grade level. Click the grade level for your child to get started!

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How to Use This Page

This page contains a "menu" of lessons and activities for this week. You will find the objectives: the specific skills that you work on. Then you will find a selection of lessons and activities which help you practice and master those skills. If you run into technical issues or other difficulties with any of these, simply move on and choose another.

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College Algebra - Week One

Printable Version - Week One Learning Board (in PDF)

 

College Algebra

Week 1 March 30-April 3

Solving Systems of Linear Equations

Math Objectives: Students will be able to: 

·        use various methods in order to solve a system of equations.

·        students will be able to use their knowledge of systems of equations to solve real world problems.

Instructional Videos:

YouTube

Solving a system of equations/substitution method

Solve a system of equations/ elimination method

 

Khan Academy (order of the videos matters)

Elimination Method #1

Elimination Method #2

Substitution Method

 

IXL:

(Alg2) E.1 - Is (x , y) a solution to the system of equations

(Alg2) E.10 - Solve a system of equations any method

(Alg2) E.11 - Solve a system of equations using any method: word problems

       

 Your goal is to reach a Smart Score of 80

Explanation Websites

­

Cool Math - Do Numbers 1 through 5

 

Math is Fun – Take Notes and then try the 10 questions listed under “Your Turn” at the bottom of the page.

 

Activities/Projects/Extensions:

Car Comparison: Systems of Linear Equations Project

 

 

Systems of Equations and Oreo Cookies

System of Equation and Oreo Cookies: Key

 Independent Practice

Checking the Order Pair as a Solution to the System of Equations

(answers included)

 

Determining the Type of Solution in each System of Equation

(answers included)

Self-Check/Formative Assessment

Solve the following system of linear equations with any method:

1.     x + y = 2

3x - 2y = 6

 

2.     5x - 2y = 30

x + 2y = 6

 

Vocabulary

Substitution: to put in the place of another or putting numbers where the variables are.

Elimination Method: process of solving the system of equations, by cancelling unknowns in the system.

Solution: set is the set containing value(s) of the variable(s) that satisfy all equations and/or inequalities in the system.

System of equations: a collection of two or more equations with a same set of unknowns. In solving a system of equations, we try to find values for each of the unknowns that will satisfy every equation in the system.

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