September 30, 2008

Inverse (Opposite) of a Sum (CA SS: 1.0, 2.0, 4.0, 10.0)

You received grade printouts for Chapter 1 to get signed. This is what the progress report will be reporting when you get it in 2 weeks. By then, I will be sending out Chapter 2 grade printouts (unless ParentConnect is active).

p.96 (1-39:odd)

Bring grade printouts signed

The first page of the printout is achievement (A to F), and the second page is effort (5 to 1). Chapter 1 practice is your written assignments. See your scorekeeper stamp sheet if you have forgotten why you got that score.

Today's summaries: Kara R. (Per. 1), Kellie F. (Per. 2), Alex D. (Per. 3), Michael P. (Per. 4), Seowoo J. (Per. 5), & Hyena P. (Per. 6).

17 comments:

Anonymous said...

The homework was easy! I finished in like 10 seconds! :]


Linda Ly
Per.2

Anonymous said...

are we supposed to have our parents sign both pages, or just the first one?


kylie a.
per. 3

Anonymous said...

summary:
todays lesson in class was the inverse of a sum (the property of -1). this property helps us find an equal expression for the additive inverse of a sum. All it is asking you to do is basically to make the numbers in the problem opposite of what it is.

- kellie f
- period two

Anonymous said...

Kylie, I think our parents just have to sign one page because we're probably turning in the whole packet.
-Saloni B.
Period 1

Potato Man said...

I dont understand number 39 on the homework - I keep getting 3x+2 instead of 3x+30. Can someone help me?

[7(x+5)-19]-[4(x-6)+10]
7x+35-19-4x-24+10
7x+16-4x-14
7x+16+(-4x)+(-14)
7x+(-4x)+16+(-14)
3x+(-2)
3x-2

Austin C.
Per. 2

Anonymous said...

Are we going to learn reasoning, because study island has it and I don't know how to do it.

Linda L
Per.2

Anonymous said...

Mr.Gerson, on the grade printout, it said that i have two missing assignments on the effort paper. But when i checked the front page, there isnt any missing...what does this mean?...

Hyun P per.6

Mr. Gerson said...

Hyun, I wrote "Chapter 1 practice is your written assignments. See your scorekeeper stamp sheet if you have forgotten why you got that score" in the original post. Did you have 2 incomplete or 1 missing?

Mr. Gerson said...

Linda, StudyIsland has lessons. Start by clicking on the link that says lesson.

Mr. Gerson said...

Austin, you have a mistake in the second line. You skipped a step and therefore have a negative where there should be a positive and a positive where there should be a negative. The lesson is "don't skip steps".

Potato Man said...

Thank you Mr. Gerson. I forgot the property that we learned today! Duh!

Austin C.
Per. 2

Anonymous said...

i dont understand #33
8[7-6(4-2)]
8[7-6(2)]
8[1(2)]
8[2]
16
but the back of the book says its
-40....can someone please explain to me how to do this please!?!

Adam C.
P.2

Anonymous said...

Adam, on the second step, you have to do -6(2) before doing 7-6. then you'll get 7-12=-5, and then 8(-5)=-40. order of operations.

Hannah Park
Per.5

Anonymous said...

Adam, your problem is the 2nd and 3rd line.
Instead of doing 7-6 and 4-2, you should do: -6(4)+ (-6)(-2)
So you should have: 8[7-24+12]
Now add all the numbers inside the brackets, which would equal -5.
8(-5)= -40
- Saloni B.
Period 1

Anonymous said...

alright thanks saloni, sorry i got back so late!!!!!
: P


kylie a.
per. 3

Anonymous said...

Today's notes were about inverse of a sum, the property of -1. When we apply the inverse of a sum property, the signs will be changed. Look up the sign carefully when you are multipling sign by sign.

Seowoo J
per.5

Anonymous said...

Today lesson in class was about inverse of a sum. This property helped us to find an equal expression for the additive inverse of a sum.





Hyena,P
Per.6