Alice's Math: Feb 2nd

Thursday, February 2, 2017

Feb 2nd

Algebra I

Today we discussed
It appears that the class would benefit from another day with adding & subtracting more complicated rational expressions with unlike denominators. We went over some of the homework and it was evident that everyone needs a little more practice.

Rational expressions just added another step. Recalling that whenever we add any types of fractions, rational expressions included, we must have a common denominator. We'll use our knowledge of factoring and GCF to build common denominators so we can combine these rational numbers.

Sections Covered in Textbook
1) 8-7: Rationals Expressions with Unlike Denominators (pages 329-333)

Video Tutorials
1) Adding and Subtracting Rational Expressions with Different Denominators
http://www.virtualnerd.com/algebra-1/rational-expressions-functions/add-subtract/add-subtract-unlike-denominators/different-denominators-add-example

Assignments
1) Review your Mid-Chapter Quiz on Page 325. Look over the solutions (click here) to see if you have any questions.
2) Worksheet 8-7 #'s 1-14 all.
Download Worksheet & Answers Here! Please check your answers and come to class prepared to work out any problems with which you had trouble.

Pre-Algebra

Today we discussed
Today we learned what scientific notation is and how it's used. We learned how to convert scientific notation into standard form and vice versa. Remember, scientific notation is just a set of rules to apply to very large and very small numbers. You must have a number that is at least 1 and less than 10 multiplied by a power of ten. Don't let negative exponents scare you - they represent very small, decimal numbers.