Monday, April 17, 2006

April 12th, 13th, & 17th; Scribe

Here are somethings you need to know before reading this. When items are like this; (Note: Example), that means it's important. And when things are like this; (Example), it's just me blabbing. Bolded means you should either have them as notes, or try to remember them. You might need them on the exam. If the number 2 is bolded it means squared.

Wednesday April 12th

When we entered class we did our Mental Math as always. After reviewing those answers we learned the elements of a circle:
  • Center; The middle of a circle
  • Diameter; A line that goes from on edge of the other through the circle's center
  • Radius; A line that travels from the center to the edge
  • Circumference; Is the perimeter of a circle


We continued talking about the elements of a circle for the rest of the class.


Thursday April 13th
We did our Mental Math again as usual. We then had a meter stick, red string and two lids handed to our groups. We measured them on a table like this: (Note: "/" means divide.)(This is what my group did.)

Circle# Diameter Radius Circumference Circumference/ Diameter

9A 15CM 7CM 48CM 3.2CM
9B 29CM 11CM 70CM 2.41CM
7A 11CM 5CM 35CM 3.14CM
7B 14CM 7CM 43CM 3.07CM
4A 12CM 6CM 34CM 2.83CM
4B 29CM 11CM 70CM 2.41CM

After seeing the results of the circumference divided by the diameter, we noticed that they were close to 3.

Mr. Reece asked us what we thought the circumference divided by the diameter was. There were many guesses but one person said it:
Pi

Then we started talking about Pi and how it could help us find the circumference, diameter.

Here are the equations:
(Note: I'm only using the word because I can not put the symbol up. Usually you put the symbol instead of the word. "/" means divide, "X" means multiply.)

Diameter X Pi = Circumference

Circumference / Pi = Diameter

Diameter / 2 = Radius

Radius X 2 = Diameter

Radius X 2 X Pi = Circumference

After doing that we had a little pop quiz on Perimeter and Area.

For people who had missed Thursday and today:
HOMEWORK FROM THURSDAY:
Page 10.12 Entire page

Monday April 17th

We did mental math as usual, then we reviewed some questions some people had trouble on on the quiz.(That sounds right to me, if it is not please excuse me for my crappy english.)







This is one of the two problems people had trouble on. The question asked you to add the perimeter. Some people ended up adding the inside lines; 7 and 6. The proper answer would be 24.





Here's the second problem. Instead of multiplying 1.5 by 3, some people did 2 X 3. The proper answer is 4.5 CM2. Remember to add the 2 when you're talking about the area.

After that Mr. reece handed each of us a worksheet. The first three problems (A, B, C) where you had to find the area, and six more (D, E, F, G, H, I) where you had to determine the radius, diameter, circumference, and area, when rearranged(and also only showing the first letter) it spells out c.a.r.d (circumference, area, radius, diameter.)

To find out the area do Radius2 X Pi.

Here is A from the worksheet: (I tried my best to copy it, so don't bad mouth me.)


Here is D from the worksheet: (Again, I tried my best to center everything.)


For A try to find the area.(Pretty easy. W X H = A *wink wink*) For D try to find c.a.r.d. (If you don't know what c.a.r.d is look above.)

HOMEWORK FOR TONIGHT:
Finish worksheet handed back.

8 Comments:

At 4/18/2006 6:59 AM, Blogger Mr. Reece said...

Wow, thank you Taylor for helping out those less fortunate in your class. The amount of effort that you put into this scribe post is truly amazing.

Mr. R

 
At 4/18/2006 3:39 PM, Blogger Fang_the_Barbarian said...

WATCH THE LANGUAGE LITTLE MISSIE!!!!

 
At 4/18/2006 3:52 PM, Blogger Aria said...

-___- I will mother.....

 
At 4/18/2006 3:54 PM, Blogger -rain- said...

nice pics

 
At 4/19/2006 2:44 PM, Blogger Fang_the_Barbarian said...

thank you

 
At 4/19/2006 3:28 PM, Blogger Candy said...

I just have to go ha ha ha about watching your language.

 
At 5/09/2006 8:32 PM, Blogger Mr. Kuropatwa said...

Taylor I found your post in The Scribe Post Hall Of Fame. You really deserve to be there! Three classes in one post, great graphics, excellent use of colour, well laid out and organized presentation, ... I'm impressed.

Great work, keep it up!

Cheers,
Mr. Kuropatwa
Department Head Mathematics
Daniel McIntyre Collegiate Institute

 
At 2/28/2007 5:22 PM, Blogger Beau Memories said...

This is the person who posted the scribe post, yeah, just a new account for grade eight! Mr. Kuropawta did you know I'm Alex Barker's little sister?

 

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