I want to remind you all of the importance of paying attention to detail in the evaluation and simplication of algebraic expressions. There were quite a few questions on the lesson master which was due yesterday. Consider the following when you face a problem like that in the future:
1. ORDER OF OPERATIONS - this is nothing new for you! You always, always go to groups first!
question: "But what if we can't do anything within the parentheses?"
2. REMOVE THE PARENTHESES - something new, but definitely something you are able to do!
question: "But how do we remove the parentheses?"
3. THE DISTRIBUTIVE PROPERTY - sure, it's new, but it's not scary!
question: "Wait a minute...what gets distributed?"
4. THE VALUE BY WHICH THE GROUP IS BEING MULTIPLIED - remember, it is the distributive property of multiplication! think
about who is trying to join the group!
question: "I know this sounds crazy, but to where does it get distributed?"
5. TO EACH TERM IN THE GROUP - draw arrows, write down every step...do whatever you need to do to see that once in the
group, this value is meeting up with everyone!
question: "Are we done yet?"
6. COMBINE LIKE TERMS - terms are separated by addition. like terms are terms with the same variable raised to the same
exponent. when we combine like terms, we add coefficients.
question: "NOW are we done yet?"
7. POLISH - remember, you are sophisticated students of algebra! this sophistication applies to ordering of terms, as well as
presentation of operations (for example, instead of addition of the opposite, write it as subtraction)
I hope you find this helpful! This can be confusing, but taking clear, deliberate steps will be very helpful! Good luck with your work, enjoy the weekend, and I look forward to seeing you all soon!
P.S. Rockies in four...?
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28 comments:
hey!
i have a question on removing parentheses. In class on thursday and friday we had to remove parentheses when simplifying, but we couldnt use the distributive property. What should you do in a case where the expression has parentheses, but you cant use the distributive property?
hey, i have another question! On the homework on #24 b, i wrote out the number pattern wiht a variable but it was very long, and i thought that there must be a simpler way to write it out, but i couldnt think of a simpler way. Because, i rember doing it in class and it being very simple, but mine is very long!?! If yopu know of a simpler way can you please tell me??
HEY!!
Whats the homework? Because i wasnt at school today and someone (andrea) forgot to do my homework and shes not picking up her phone..what a great friend! But, anyways, whats the homework? If you read this please reply ASAP!
ya same i didnt understand number 24 b and rachel call me and ill help you with your homework because i am sooooooo nice
Hey Rachel
LM 2.1B and 2.2B, you don't have the WS so you may have to get them tomrrow. Hope you had funa t Holy Child!
WE HAVE A QUIZ ON WED.
When are we supposed to find a common demoniator? I am confused on when to.
You can multiply/divide non-like terms right?
i may have to give the problems to rachel so she can do her homework cause i know how much she loves doin hw
Great idea Kyle.
hey!
could someone post the criteria for the 7 step number problem again? I left my math binder at school, so i do not know the criteria. Thanks!!
ya kyle..your right, i LOVE doing homework! Espically mathe homework!
Hey,
I cannot get number 10 on LM 2.2B. I don't know how to solve it by using the distributive property.
HELPPPPPPPPP!!!!!
Hey Rachel,
For the 7+ number puzzle you have to just make a number puzzle with 7 or more steps. It pretty much speaks for itself.
hey caroline, i would help you but i dont have the lesson masters, so i cant! But whats teh criteria for teh 7 step number problem again?
ya i got the it has to be & steps part, but does it have o start and end with the same number..or what?
pick a number IS NOT A STEP
I think it can start with any number. Reread one of her posts...it may say.
HEY GUYS!!
okay...i FINALLY found a number problem that i think works! YEAH!!
okay u guys can try it and then give me some tips!
here it is:
1- pick a number
2- add 17
3- mutiply by 2
4- subtract 4
5- divide by 2
6- add the sum of 2+2
7- subtract the difference of 20-17
8- then subtract 2
9- you should end up with your starting number!
so far, my number problem is working perfectly! I tried 3 positive numbers, a negative number, and 0 so far! But i need you guys to try it too!
SORRY GUYS, I TYPED ONE OF MY STEPS WRONG!?!....so here is teh correct number problem:
7 Step Number Problem
Rachel Thomas
1.pick a number
2.add 17
3.multiply by 2
4.subtract 4
5.divide by 2
6.add the sum of 2+2
7.subtract the difference of 20-3
8.subtract 2
9.You should end up with your starting number
ugh, Rachel I tried it and it didn't work.....):
K let me try now
IT WORKS!!!!!!!!! (:
IT WORKS!!!!!!!!! (:
yeah!! it works! if i could have another person try it, please!!...thanks caroline!
hey!
Here is my number puzzle!
pick a number
1. multiply by 2.
2. divide by 3.
3. add 10.
4. subtract 4.
5. divide by 2.
6. multiply 3.
7.subtract 9.
the answer should be your starting number
happy halloween eve!!
hey..okay, so i have a question on lesson master 2.2B, on #12. How would you combine the fraction -12/22n with 2n/22? Im not sure how to?
hey, i also have a question on #22 on lesson master 2.2B. How do i write an expression out of those numbers? They tell me that the winning team gets 1/2 of the proceeds, the 2nd place team gets 1/4, and the reamining 2 teams split the rest evenly. Then they say to write an expression showing how much each team will recieve. But, how do i do that?
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