### October 21, 2009 Scribe Post

Wednesday, October 21, 2009
Hey 9-05! *cough, The Class* Today in class we did some more learning about Rational Numbers.

Can you prove that pi is an irrational number? Well, that's one thing that we learned in class today. On your calculator put in: π then =. You should get 3.141592654. Now divide π by 100000000. *gasp* Did you get pi as an answer? That's because there are a limited amount of characters on your calculator and it can't calculate the full number.

Today we also learned about Equivalent Fractions. Equivalent Fractions are fractions that mean the same thing. In other words have the same value in decimal form. An example of an equivalent fraction is 10/20=1/2=5/10=100/200=0.5

Sometimes when we see something written differently we almost automatically think that they are different from each other. There are many different ways to write the same fraction. So, next time you compare fractions..check to make sure they aren't equivalent.

Example:

REMEMBER: The sum of opposites=Zero. Why? Because they are Zero Pairs, which means they cancel each other out. 365+(-365)=0

WATCH THIS VIDEO IF YOU HAVE ANY PROBLEMS:

HOMEWORK:

• Mr.Backe gave us a package of papers a few days ago. We need to complete Section 2.1 Extra Practice(2 pages)

• In the homework book. Chapter 2.1 (pages 16-17)

• And remember to Journal everyday we have class.

By the way, if you're planning on buying a new calculator..Casio fx-300Es is the best one for Grade 9. hmm...The and the next scribe is........Dean S...!!!!..gets a longweekend..

Okay, well this is the end of my scribe..I hope I didn't miss anything. Please leave a commment for any reason.

Abby905 said...

HEY JOSEPH! Good job on the scribe post! You used a good amount of color and pictures! And you also put a video which is really good! The only thing that's bothering is the calculator part, like which calculator you need for grade 9. I think there's other recommended Casio calculators for grade 9 other than the Casio fx-300ES. There's Casio FX-260 and Casio FX-300MS. I think I made the calculator thing too big of a deal, though.. But anyways, keep up the good work Joseph! OH! And guess what? I'M FIRST! COOOOL~!

liem905 said...

GOOD JOB JOSEPH! , stepped it up! Btw first scribe with a video. I wished I had your guy's caluacator but I have a TI-30XA but it still works fine. Having a blog its really handy but you dont have an excuse anymore, if your sick at home with a laptop and an internet connection D:

Superb WORK brother. (:

Mr. B. said...

Wow!!!! A video... (and an ellipse)

simran 9-05 said...

Great Job! Nice job explaining what we did in class. Great use of colour and like bakee said, wow a video!

Dean 9-05 said...

woooot, go joseph.
im back at commenting, cause Mr. Backe has been on my back lately with the blog. haha
but i also want to contribute so yeah.
good job man as usual.
you mentioned everything, applied colour, and even added a twist to your blog, A VIDEO!
thanks for choosing me for scribe, i know you had a lot of choices.
keep up the exquisite work 9-05!

simran 9-05 said...

Oh wait! sorry Backe, I spelt your name wrong in my comment!

linda 9-05 said...

Great job, Joseph! Finally someone found a video! Your post is pretty much perfect with the exception of a few puncuation errors, but that's not a huge deal. Also, I think that the calculator best suited for grade 9 is any that has the fraction and pi button. Another useful feature is showing the double line and/or old calculations you did. TI-30XIIS is pretty good, if I do say so myself. Keep up the great work!

Lissa 9-05 said...

GOOD JOB JOSEPH! Your scribe is very well done (: Thanks for putting up a video! I think you talked about everything in class and I like how you added alot of colours. And yes, we are going to be "THE CLASS". Well, great job, I know how long you took to do this scribe so.. thanks alot for the scribe and for your hard work!

angela905 said...

Great scribe, Joseph! Good use of colours, pictures, explanations, and video. It was the first video here on the blog. Also saying that we are "THE CLASS" is so true! As long as the class keeps it up... :D

xtian 9-05 said...

Good job, your the first one in our class to use a video(i think?) Were "The Class"

xtian 9-05 said...

Mr.B said something about the video, he said that there's something wrong and he wants us to figure out what it is.

Zerlina905 said...

Great job Joseph! Congrates on being the first with the video. I like all of the pictures and and great use in colour. Great job again!