Sunday, September 29, 2013

SIXTH GRADE MATH

On Friday, the class continued working on metric conversions. If you are still confused, watch the video from Thursday. Continue working on the same paper - p423 #15-23.
 
SEVENTH GRADE MATH

Review of multiplying decimals. p16 #11-28. Do not estimate...just find the products.

SEVENTH GRADE GEOGRAPHY

The class took a test on Friday. No homework!
 
PRE-ALGEBRA

The class began unit 2 over equations by learning about terms. The assignment is p268, #7-21. Remember, terms are alike and can be combined if they have the exact same variable(s). You combine them by adding or subtracting their numerical coefficients. For example:

3x + 5x - 7x = 1x or x because they all have just an "x" and 3 + 5 - 7 = 1

For the second set, #23 - 28, you will have more than one term in the answer because they aren't all like terms. For example:

5x - 7y + 2y - 2x

First, you would combine the terms with "x". 5x - 2x = 3x

Then, you combine the terms with "y". -7y + 2y = -5y

So the final answer is 3x - 5y

Remember, the sign in front of the term goes with it. So, the 7y has a minus sign, so you can think of it as a negative 7y.

Here is another example:

3b + 5 - b - 9

First, combine the terms with "b". 3b - b is the same as 3b - 1b = 2b

Then combine the constant terms (when a number doesn't have a variable, it's "constant"): 5 - 9 = -4

So, your answer is 2b - 4. You could also write this as 2b + -4. It's the same thing.

ALGEBRA I

You are continuing with word problems with equations. I do not have my book or the numbers written down. If you have a question, please email me!

See you tomorrow,

Mrs. Swickey