Week 5 and 6

I added new links:

2.1Evaluating variable expressions

Evaluating variable expressions made simple

khanacademy practice variable expressions

2.2  Simplify Variable Expressions

  Simplifying variable expressions calculator

Important properties that help with deciding how to solve equations.

2.3 Translating Verbal Expressions into Variable Expressions

Another document: translating keywords

A short video: home school video on translating verbal expression
A long video: translating phrases into mathematical equations

Week 3-4

1.6 Addition and subtraction of rational numbers

    1.6 a)  The book gives       90      as an example.  
                                             168 
             Step 1 find all of the prime factors for 90 and for 168
             90   = 3,3,2,5
             168 = 2,2,2,3,7

             step 2 cross off the prime numbers that are the same one of each. for example 2 = 1 so they
             can be crossed off.   So the equivalent fraction is (3)(5)       =   15                     2
                                                                                           (2)(2)(7)        28

           
             When I say equivalent fractions I mean 90 divided by 168 equals 15 divided by 28. if you     
             put  it in a calculator you get exactly the same number for the two division problems.
                                                                                                                                         
                                       
1.7    


Web pages to build your skills:
Math practice
pre Algebra is in the 8th grade link and then after that it is labeled by class. Algebra 1, Algebra 2 etc...

Finding lowest common multiple:
.factmonster.com/


chapter 1 Review:

This is an open book: pre-Algebra eBook that explains the math steps very clearly.
Go through it practice it:
  http://home.comcast.net/~cherylwilcox1/site/