The things that I have learned in this unit are:
* 1. Systems of Linear Equations
* 2. Substitution Solving
-Step 1: Choose a variable in either equation to be “solved for”.
-Step 2: Solve for x.
-Step 3: Substitute so that you create a single equation in on one variable.
-Step 4: Solve for that variable.
-Step 5: Use that known value to solve for the unknown value by substituting into either original equation
* 3. Algebraic Solving Method (Elimination Method)
-Step 1: Line up variables and coefficients.
-Step 2: Pick a variable.
-Step 3: Use algebra to multiply or divide an entire equation by a value to create same or opposite coefficents in either variable.
-Step 4: Add or subtract depending on whether you've created "sames" or "opposites".
-Step 5: Slove for the remaining variable.
-Step 6: Use substitution to find the first variable.
* 4. Types of Solutions to Linear Systems.
-Ordered Pairs Solution
-No Solution
-Infinitely Many Ordered Pair Solutions
* 5. Word Problems
-The two rules to solving problems are:
a. Name and define two variables
b. Create
-Then solve as desired:
a. Elimination Method
b. Substitution Method
c. Technology such as graghmatica, graghing calculator, or excel.
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The things that I do not have the stronges skills in this unit that I need to improve are:-Understanding how to set up my equations in word problem solving.
The things that I have a strong ability to do is the substitution method and elimination method
This is the online extension of our classroom this semester (2007 Fall Term) at the SVRSS. The content here is being created by real students in a real classroom. Enjoy learning from and with each other...
Monday, October 1, 2007
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