**ALGEBRA BACKGROUND INFORMATION**

**"KEY WORDS" that you **__need__ to know the meaning of.

** ****VARIABLE:**

**A letter or symbol representing a quantity (number)**

**EXPRESSION:**

**An algebraic expression that has many answers**

**EQUATION:**

**An algebraic equation has only ONE answer**

**SUBSTITUTION ALGEBRA:**

**When you use substitution algebra, replace the variable with the value and**

**solve the equation**

**EXAMPLE QUESTIONS**

**"WORDS THAT MEAN ADDING, SUBTRACTING, MULTIPLYING, DIVIDING"**

**In the beginning of this unit, we started doing blue sheets. On that blue sheet we had to find an algebraic expression**

**find the pattern, describe each pattern, draw the pattern, fill in a table and do substitution algebra.**

**The paper looked like the picture below.**

** **

**I'll show you how to find solve the equations on my actual unproject. If i put it here I'd be saying too much.**

**So I'll just show you an example. This pattern is called Lego.**

**After we did the blue sheet. We took the table from question 2, and we turned it into a graph.**

**Algebra is basically about balance. What ever you do to one side, you do the same thing to the other.**

**You're really just isolating the variable. **

**So if you have a question like 5n+8=53, You isolate the variable by taking away the itegers. In this case it's +8**

**you get rid of the the integer by adding it with it's opposite, which is -8. If you put the two together you get 0**

**so it would look like this +8 -8 = 0. Now you do the same thing to the other side of the = sign. just minus the # behind**

**the = sign by 8. ****This is where Alge Tiles come in.**

**I'll tell you more about Alge Tiles in my actual unproject.**

**click here for our ALGEBRA QUIZ**

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