Chapter 4.3b - GCF with variables
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Accelerated Pre-Algebra (10-11) A peek inside our classroom. This is an interactive learning community for students and parents of my 7th Grade Accelerated Pre-Algebra class for the school year 2010/2011. The discussion and information will be as meaningful as you make it.
Wednesday, November 10, 2010
Tuesday, November 9, 2010
November 9,2010
Today in class we learned about prime factorization. We learned a new method called the birthday cake method. To do this method you start out with the number you want and than you find the lowest prime factor that goes into that number. you than put the answer on the top of the original number and do this again. Than you take all of the numbers on the side and add them up. We also learned the definition of prime and composite numbers today. Prime Number-is a number that can only be divided by 1 and its self. An example of this would be 2,3,5,7, ect. The cool thing about 2 is that it is the only even prime number. Composite Number- is when the number has more factors than just one and its self. Examples of this would be 28,27,24 ect.
Monday, November 8, 2010
Daily Scribe 11-8 Hunter Lambroff
Today in class we reviewed some things from previous years and we also learned some new things about "pemdas" and how it can effect an equasion.
We started off with a Do Now of trying to write down divisibility rules 2 - 10, so here are the answers.
2 - If a number is divisible by 2, it ends in either 0, 2, 4, 6, or 8.
3 - If a number is divisible by 3, the sum of it's digets is divisible by three.
4 - If a number is divisible by 4, then the last two digits of the number are divisible by 4.
5 - If a number is divisible by 5, it either ends in 0 or 5.
6 - If a number is divisible by 6, it must be divisible by both 2 and 3.
7 - The rule is SUPER complicated, so you'll just have to divide.
8 - If a number is divisible by 8, the last three digits of the number are divisible by 8.
9 - If a number is divisible by 9, the sum of it's digits is divisible by 9.
10 - If a number is divisible by 10, the number must end in 0.
Next, we learned about factors.
Factors are integers that divide into another number evenly.
Then, we did some problems to find the factors of a given mumber.
We also learned that prime numbers are numbers that it's only factors are itself and 0.
Later, we learned how exponents are used to show repeated multiplication, it would be alot easier to say 5^7 than 5*5*5*5*5*5*5. You must remember that exponents mean you multiply the. It doesn't mean that you multiply the integer by the exponent. When you write exponents, you write them to the top right of the integer, if it is only miltiplied once you don't have to write anything.
When you add variables, perenthases, and negative numbers in to the process, it can get tricky. When there is a negative variable and it's exponent is even, the product is even. If it's odd, the prodict's odd. If there are parenthases around the negative variable or number, and the exponent ids on the outside, it means that you do the negitive number, times itself as a positive/negative a ceartian amount of times. Parenthases and the exponents effect the equasion and it's answer.
We started off with a Do Now of trying to write down divisibility rules 2 - 10, so here are the answers.
2 - If a number is divisible by 2, it ends in either 0, 2, 4, 6, or 8.
3 - If a number is divisible by 3, the sum of it's digets is divisible by three.
4 - If a number is divisible by 4, then the last two digits of the number are divisible by 4.
5 - If a number is divisible by 5, it either ends in 0 or 5.
6 - If a number is divisible by 6, it must be divisible by both 2 and 3.
7 - The rule is SUPER complicated, so you'll just have to divide.
8 - If a number is divisible by 8, the last three digits of the number are divisible by 8.
9 - If a number is divisible by 9, the sum of it's digits is divisible by 9.
10 - If a number is divisible by 10, the number must end in 0.
Next, we learned about factors.
Factors are integers that divide into another number evenly.
Then, we did some problems to find the factors of a given mumber.
We also learned that prime numbers are numbers that it's only factors are itself and 0.
Later, we learned how exponents are used to show repeated multiplication, it would be alot easier to say 5^7 than 5*5*5*5*5*5*5. You must remember that exponents mean you multiply the. It doesn't mean that you multiply the integer by the exponent. When you write exponents, you write them to the top right of the integer, if it is only miltiplied once you don't have to write anything.
When you add variables, perenthases, and negative numbers in to the process, it can get tricky. When there is a negative variable and it's exponent is even, the product is even. If it's odd, the prodict's odd. If there are parenthases around the negative variable or number, and the exponent ids on the outside, it means that you do the negitive number, times itself as a positive/negative a ceartian amount of times. Parenthases and the exponents effect the equasion and it's answer.
Monday, November 1, 2010
Daily Scribe
Today in class we studied for our test that is tomorrow. Some people played games on the computers, did work sheets, or played kosh ball. Whatever you did I hope that you are ready for the test tomorrow. It is on integers, and some of our vocab words. They are opposite, integer, and absolute value. George told you what they are. You have to also know if you are multipling or dividing integers if it is going to be a positive or negative number. I hope you all studied.
We also have a notebook quiz. This is to see if your notebook is organized. So you should make sure that you have the dates and what number homework it on the page.
If you don't know all of these things and if your notebook isn't organize then you better get studing!
We also have a notebook quiz. This is to see if your notebook is organized. So you should make sure that you have the dates and what number homework it on the page.
If you don't know all of these things and if your notebook isn't organize then you better get studing!
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