Thursday, February 07, 2008
Algebra (Class 48)
Lesson Title
Systems of Equations1
Overview
In today’s class we begin our study of solving systems of linear equations by algebraic methods. We learn that: 1) solving a system of linear equations is the same as finding the intersection of two lines, 2) that the coordinates of a point of intersection will make both equations true, 3) to find a solution means we have to first eliminate a variable.
Textbook Sections
§9-1 (Txt. p.413) Solving Systems of Linear Equations
Vocabulary
systems of equations
eliminate variable
Key Attitudes
Math is about investigating and confirming
Key Ideas
Two equations have the same values only at their points of intersection.
Two lines can intersect at one point, no points, or all points.
An equation with a single variable has a unique solution
Key Skills
Graphing equations of lines.
Solving first degree equations of one variable.
Turn-In (#47)
Turn in #47
Graphing practice (Except if you took the CAHSEE)
Handouts
No Handouts Posted
Assignment
Packet SP15
§11-5 (Txt. p.526)#9-12
Disclaimer- The assignment as stated in class is the official assignment. Every effort is made to keep this posting accurate, but you should refer to what was stated in class as the final word.
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