Tuesday, December 13, 2011

1st Trimester Reflections

1st Trimester Reflections


1. So far in math this year I am very proud of my test grade that I got a good grade on.

2. I wish that I had done better on corrections for my homework, tests and quizzes.

3.Yes, Algebra has challenged me. Focusing in class has challenged me this year. Also

standard form has challenged me while we were doing slope.

4. I feel like I have mastered function, direct variation, graphing equations and y-intercept slope

form.

5. Goals: 1. I want to focus more in class and not talk. I will accomplish this by not getting

distracted by the people around me. Also really concentrate on the lesson not the people next to

me even if they are talking.

2. I want to do corrections on tests and homework assignments. I will accomplish this by

being more organized, I usually forget to do corrections and that could help improve my grade.

Monday, September 19, 2011

Chapter 2 Vocabulary

Absolute Value: The absolute value is how far a number is from zero.



Additive inverses or opposites: Additive identity states that the sum of the number and zero yields the same number.





Irrational Numbers: Any real number that can not be expressed as a fraction.








Measure of Central Tendency: The three most common measures of central tendency are the mean, the median a
and the mode.













Odds: The ratio of a pair of integers.






 


Perfect Square: A integer that is a square of an integer. For example 9 is a perfect square because 3 x 3 is 9. 









Probability: The chance of something happening.














Rational Number: Fractions, and decimals that repeat or terminate.









































Adding and Subtracting Integers

  

 a) 5 + -8 = -3 
The first step is to subtract, 8-5 which is 3. 
Then you take the sign of the number with the greater absolute value.
b) -4 + 10 = 6 
The first step is to subtract 10-4 which is 6.
Then you take the sign of the number with the greatest absolute value.
c) 4 - 9 = -5
You keep, change, flip. That means, keep the first number the same. Change the sign to addition. Flip the sign of the second number. That means the equation has turned into 4+-9 so you subtract 9-4 which is 5 and you take the sign of the number with the greatest absolute value. Thats why its -5.
d) -8 - (-9) = 1
You do the same thing as we did in c. Keep, change, flip. Therefore the equation is -8 + 9, so you do 9 - 8 which is 1 and you take the sign from the number with the greater absolute value. Thats why its +9. 





      

Spreadsheet!

https://docs.google.com/spreadsheet/ccc?key=0Apj-dQHWsOTXdEkzMU5IQTRRR3BVcmFYM185eXZvT3c&hl=en_US#gid=0

Spreadsheets can be used in math for organizing data. It can also be used for showing your data in an easier way to see.