Showing posts with label scribepost. Show all posts
Showing posts with label scribepost. Show all posts

Thursday, December 9, 2010

Raquel's Scribepost for December 9th

Today in math class, we learned about Similar Triangles.
We learned terms like congruent. Congruent has a symbol that looks like:

Congruent means, Identical in shape and size.

We also learned the term similar. Similar al
so has a sign which looks like:
Triangles are similar if:
  • Two pairs of corresponding angles are congruent
  • Three pairs of corresponding sides are proportional
- Each vertex is a upper case letter and the opposite is a lower case letter.






A formula that you can use is:

OR


Example:














That`s pretty much it for what we did in math class. Tell me if I forgot anything and please leave a comment if you actually go on here and read it and if you can`t see the picture just click on it.
- Raquel. :)

BTW......
HOOOOOMEWORK
-go to www.spmathgr9.blogspot.com
-read similar and congruent triangles
-apply and practise. Odd or even.

NOOOOOW, I`m done and sorry I know i posted it up late. :S

Sunday, November 7, 2010

John's Scribe Post For November 4th, 2010

Hey guys

Last class Mr.Backe assigned me question 24 in section 2.1 page 58.

Question: Give an example of a fraction in lowest terms that satisfies the following conditions.

A) Greater then 0, with the denominator greater than the numerator.

Answers: 1/3 or 2/5

B) Between 0 and -1, with the denominator less then the numerator.

Answer: for this answer I had a really hard time with so I looked at the back of the book. 3/-4

C) Less than -2, with the numerator less than the denominator.

Answer: -8/4

D) Between -1.2 and -1.3, with the numerator than the denominator.

Answer: 4/-3.

If anyone can explain question B it would help and if I got anything wrong tell me.

-JOHN!

Raquel's Scribepost for November 4th

QUESTION #17 FOR 2.2

  • TWO wooden poles measured 1.35m and 0.83m in length. To make a new pole they were attached by overlapping the ends and trying them together. The length of the overlap was 12cm. What was the total length of the new pole in meters.
- For this question all I really did was add 1.35m and 0.83m and subtracted the results with 12cm.



Yeah, that's mostly it. Sorry, I didn't get enough time to take some pictures.

Thursday, November 4, 2010

Harvey's Scribepost for November 4, 2011

2.2 Apply, Question 21, page 61

Andrew drove his car 234 km from Dawson to Mayo in Yukon Territory in 3 h. Brian drove his truck along the same route at an average speed of 5km/h greater than Andrew's average speed. How much less time did Brian take, to the nearest minute?

If we divide 234km by 3h, we should get the km. We need to get Andrew's average speed because we need it to find out how long Brian took to reach the same distance.

78=234/3


So Andrew drove his truck at 78km/h.

We know that Brian drove 5km/h faster than Andrew, so he would have driven at 83km/h.

To find out how long he drove, we divide 234km by 83km.
2.819277108=234/83

Round.
2.8=234/3


Brian drove at 83km and took 2.8 hours.

We need to know how much more faster Brian was compared to Andrew. To do that, we convert the hours into minutes. To do this, multiply the hours by 60 minutes.

Andrew:
180=60*3

Brian:
168=60*2.8

Then subtract, and we have our answer.
12=180-168

Brian was 12 minutes faster than Andrew to reach the same distance.

Kenneth's Scribepost for November 4, 2010



Mr.Backe Assigned to me #19 pg53 of 2.1 fo
r scribe so yea I got the easy one.

Anyways I'm going to show you the answers for #19 (For those who either did or didn't do their homework) as well as the questions I'm about to show you.

Comparing and Ordering Rational Numbers

19. The table includes the melting points and boiling points of six elements known as the noble gases.

a)Which noble gases have a melting point that is less than the melting point of argon?
Whats less than the melting point of argon
is Helium and Neon

b)Which noble gases have a boiling point that is greater than the boiling point of krypton?
What's greater than the boiling point of krypton is Radan and Xenon

c) Arrange the melting points in ascending order.
-272.2, -248.67, -189.2, -156.6, -111.9, -71.0

d)Arrange the boiling points in descending order.
-61.8, -107.1, -152.3, -185.7, -245.92, -268.6


If I got any Errors Please Correct me by commenting xD and sorry for not putting coloring in because it wont let me -_- and yea I don't know how to make my picture big

Monday, November 1, 2010

Celdrick's Scribepost For November 1, 2010

CONVERTING DECIMALS TO FRACTION



Converting decimals into fractions is really simple.
Just follow my steps....

Let's try converting this number to fractions.
0.8 repeating.

0.8 can be shown as what ever you like. But I'll use x.

x=0.8 repeating.

Step 1.
Convert the decimal into a whole number and multiply it by ten because it's in the tenth place.


Step 2.
Subtract the 8.8 to the 0.8.

Step 3: Get rid of the decimal.
To do that you need to divide 9x to 9.

Step 4. Put the 9 below the 8.

Step 5. Try to convert it into a smaller fraction.












Now lets try to convert this decimal number to a fraction.


X=0.08 repeating.


Step 1.
Convert the decimal into a whole number and multiply it by one hundred because it's in the hundredth's place.


Step 2.
Subtract 8.88 repeating to 0.08

Step 3.

Get rid of the decimal.
To do that you need to divide 99 x to 99 and whatever you do to one side you do it to 8.8 too.

Step 4. Convert it into a whole number
8.8 x 10
99 x10

Step 5.

x= 88 over 990...CONVERT!!! 8 over 90 is the answer. So..... x=8 over 90.






Thanks for reading my blog...Don't forget to comment and do your homework. CLICK ON THE PICTURE TO MAKE IT BIGGER!

Wednesday, September 29, 2010

Deniel's Scribe post for September 29th


Hey guys so today in class Day 5 Period 5, Mr. Baké told us a question that everyone was struggling with so here is the question:

[ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ]

What is the difference between an oblique and a diagonal?

So here's my solution on how i figured out this question,

In my opinion an Oblique line and a diagonal are both similar to each other because
A Diagonal line joins a two non-adjacent vertice's of a polygon

An Oblique line of symmetry is a slanted line rather then horizontal or vertical.

-_-_--_-_--_-_--_-_--_-_--_-_--_-_--_-_--_-_--_-_--_-_--_-_--_-_--_-_--_-_--_-_--_-_--_-_-

After Mr. Baké told us it was homework he handed out our tests back and reviewed over all the questions on the Symmetry test so here are the answers if u guys didn't know:

1. In the figure, the dashed line represents:

C.An oblique line of symmetry

2. In the design below, the dashed line represents:

A. A horizontal line of symmetry

3.What is the angle of rotation in the figure?

B. 60 degrees

4. The image shown below is the flag of Canada. The flag shows:
D. A vertical line of symmetry

5. The design has rotation symmetry. What is the angle of rotation of the design?

A. 15 degrees because it has 24 points divide 360 by 24 and you get 15 degrees.

6.The following figure demonstrates a picture with Q's that are differently placed:

B. It has a lack of symmetry

7. Figure 2 results from:
A. It is a reflection of Figure 1 about the y-axis

8. How many lines of symmetry does the figure have?

D. 6 because it is an octagon

9. The word bid is an example of a word:

This question got really confusing when people did there test because a lot of people thought the word bid was gonna be a defining word but it was wrong, it is a part of line symmetry and the line symmetry it has is with a vertical line of symmetry.

10.What is the order of rotation for the figure?

D. 6, because it has 6 sides

11. What type of symmetry is shown by the playing card?
C. It only has rotation symmetry

12. The playing card shows an example of
B. it also has rotation symmetry

13. Oblique line of symmetry
14.Vertical line of symmetry
15.Line of reflection or Line of symmetry
16.Mirror Line
17.Horizontal line of symmetry

19. The half figure of your shape has lines of symmetry , a vertical line of symmetry, horizontal line of symmetry, oblique line of symmetry, and Rotation Symmetry

20. You were suppose to rotate your image using the origin as the rotation center 180 degrees.
Also stating the coordinates of the rotated points.

So as for now here are the coordinates for u guys to make the shape :)

A (8,6) turns into (-8,-6) D (7,3) turns into (-7,-3)
B (2,8) turns into (-2,-8) E (7,5) turns into (-7,-5)
C (5,3) turns into (-5,3) F (8,5) turns into (-8,-5)

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

So after we reviewed our Symmetry test mostly everyone started to talk and chat and some did their work but homework was the Show you know on Pages 29-31 and including the Check Your Understanding

And also play:

The next scribe I choose is .................. uhmmm RUEBEN!! >:)

Thursday, September 23, 2010

Celdrick's Scribepost For September 23

Today in class, we played the card game for atleast 5 minutes and we did multiplying.
After that we had to figure out what was the order of rotation of a cube. Most of us said that the rotation of a cube has 4,8,16, and 24. One of the answer is right but we just didn't know how to explain it. So when Mr.B told us the answer...we all figured out how the answer is 8. So I'm gonna show you how its 8.






You can rotate the cube going to the right.So the cube can be rotated 4 times.











Then we have to rotate 4 times going up.



So 4+4=8 but we don't really know if we can rotate it in a different way...



Next...we had to figure out how many lines of symmetry there are in a cube. The answer is 12 and I'll show you how we got it. Since there's 4 lines of symmetries in a square...all you have to do is multiply it by 3 because of the front and back (1st group) the sides (2nd group) and top and bottom (3rd group) so there are 12 lines of symmetries in a cube.



The last thing we did was to figure out the surface area of a cube.
The formula is bxhx6.
The net was something like this.




All sides are 3 cm because all sides are equal.










So the answer is:






Sorry my computer won't let me add colour so yea....hope you liked it and don't forget your homework......


The next person I choose to do the scribe is.ASHAM......


peace!!!!!!!





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│▒ /▒/ ─┬─┐
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┌ ┴─┴─┐-┘─┘
│▒┌──┘▒▒▒│
└┐▒▒▒▒▒▒┌┘
└┐▒▒▒▒ ┌--

Tuesday, September 21, 2010

Harvey's scribepost for September 21, 2010 5:30PM

Today for math class we went to the computer lab. What we did was go on the web site tutpup.com. Tutpup is a website where you can play fun math games against other people from all around the world. If you missed class and want to play, here's what you have to do:

Click on this:


Then you get to this screen:


Just fill out the form, putting your real year of birth and country, and telling us your password on the comments, then you see the question: "Do you have a class code?" Check yes. You'll be seeing a new bit, which should look like this:

For the Class Code, type: "spmath906" without quotes. Then click join now and you should get a confirmation that you joined successfully. So click the tutpup logo to return to the homepage, and pick a category to start playing!

One last image to show you how fun this thing is:


I pick Celdrick to do the next scribepost.