Activity Overview
Students learn to solve a system of linear equations (2 equations with 2 variables) by substitution and elimination methods. They also review the definitions of consistent (independent and dependent) and inconsistent systems, and associate the number of solutions of a system with them.
Before the Activity
Install Topics in Algebra 1 App on the calculator using one of these two methods:
TI Connect™, a TI Connectivity Cable, and the Unit-to-Unit Link Cable
TI-Navigator™ "send to class" feature
See the attached PDF file for detailed instructions for this activity
Print pages 5-15 to 5-28 from the attached PDF file for your class
During the Activity
Distribute the pages to the class.
Follow the Activity procedures:
Find the solution of each system using either the substitution or elimination method
For a system of equations use substitution method to solve the equations
In the activity What am I? solve the given system of equations by elimination method
Observe the system of equations, and decide if the system is consistent and independent, consistent and dependent, or inconsistent
Answer questions related to a given system of linear equations
In the Balloon Ride activity use the substitution and elimination method to solve the system of equations
Write a system of equations for the given word problems, define the variables and solve using substitution or elimination
Use the calculator to graph two lines of a system of equations
Use the intersect feature and find the solution
After the Activity
Students will complete the Student Worksheet and analyze the results.
Review student results:
As a class, discuss questions that appeared to be more challenging
Re-teach concepts as necessary