Friday, January 30, 2009

Scribe Post for January 30, 2009

Today in math, our class started off with Number of the Day which was 2 969.402

After that, Mr. Isfeld asked about our Gr. 8 algebra homework:

1. 6 - 3x = -6
2. 5x / 4 + 3 = -7

3. x / 5 = -3 / 4

These are pretty hard questions to answer so Mr. Isfeld told us steps to answer them.

Step # 1

Take away not needed numbers by doing their opposite operation so you can cancel them out and what you do to one side of the equal sign you do to the other.

Step #2

Answer anything you can solve.

Step #3

Find what the letter is.

After finding everything, verify by writing down the equation and then replacing the letters by the answer.

Here are some of the practice questions Mr. Isfeld gave us:

1. b - 2 = 4

b -2 + 2 = 4 + 2
b = 6

Verify


b -2 = 4
6 - 2 = 4
4 = 4

2. a + 3 + a = 5

a + 3 - 3 + a = 5 - 3
a + a - 2
2a / 2 = 2 / 2
a = 2

Verify

a + 3 + a = 5
1 + 3 + 1 = 5
4 + 1 = 5
5 = 5

3. 3d = 9

3d / 3 = 9 / 3

d = 3

Verify

3d = 9
3(3) = 9
9 = 9

4. 4 / f = 4

4f / 4 = 4 / 4
f = 1

Verify

4 / f = 4
4 / 1 = 4
4 = 4

After doing the algebra, our provincial folders got handed back to us and we finished doing our worksheet about ordering fractions and decimals in ascending (least to greatest) and descending (greatest to least) order. We also had to put down a goal about ordering the fractions.

I choose Razel to do the next scribe post.

16 comments:

althea7-72 said...

very well done elaine!
your scribepost looks awesome...and i really like the links on ordering decimals...you explained everything well especially when you explained how to do algebra...great job

taylor772 said...

Well done Ellaine I wasnt there that afternoon but now I completely understand what I missed out on Thanks! Plus you did an awsome job explaining what to do

Carla772 said...

Great Job Elaine !
You did it very well. I like how you explained how you got the answer by steps, it's very easy to understand. Nice colors and links!
Great Job again.

Zerlina 873 said...

Great job Elaine! I liked how you added colour. You made things bold and it was very clear and understandable. I liked how you added a link. You should add a video, and a picture so it would really stand out. Great job again!

razel772 said...

good job!! you explained every thing we did in class....

MaryJane772 said...

Awesome job Elaine ! You explained everything we did in math so well. Great job on putting colors. Nice job !

Ralph772 said...

Good Job! I liked how you put colour and links. I liked how you put all the information and all the steps. Your post is very helpful. Maybe next time you should add videos or pictures. Good Job

argie772 said...

good job elaine.
it was very informative
and it looked like you
put alot of effort in your post.

Telisa72 said...

awsome job you did great

kevin772 said...

good job

Alex 7-72 said...

good job Elaine! I liked how you explained the answer step by step. I also like the color and links. Good job.

Binesi7-72 said...

Good job, nice use of color

Ronny 772 said...

Nice work Elaine, good colour and links. You posted the questions and you showed how do get the answers!

And the practice ones,

Camille5 said...

Awesome job Elaine, very well done. I liked how you used different colors. :D

celdrickpetilla7-72 said...
This comment has been removed by the author.
celdrickpetilla7-72 said...

well done elaine
this is a good scribepost
but you could have added a video
anyways good job

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