## Monday, June 21, 2010

Exam Review Study Guide

Define

perpendicular- Describes line that intersect at right angle
Parallel- Line that never meet
Intersection- Line that Cross at any angle
perpendicular bisector-A line that divides a line segment in a half
Angle bisector- of a triangle is a line segment that bisects one of the vertex angle of a triangle.
acute angle- An acute angle is one which is less than 90°
Obtuse angle- An angle whose measure is greater than 90° and less than 180°

Label
Parallel

Intersection

Angle bisector Perpendicular bisector

## Friday, June 18, 2010

### Area

The number of square units cantained in a two demensional shape

eg.

this square has an area of 4 square units

-Area is the surface space a shape takes up.

Area of square or rectangle length X width=

L*W=area

eg.
area=6x3
=18 cm2
Parallelgram-a four sided figure with opposille sides parallel and equal
eg.

### Measures of Central Tendancy

Mean- a measure of central tendancy

You can find the mean by the sum (adding) of a set of values divided by the number of values in the set.
eg. 4,5,8,9,9

=4+5+8+9+9 / 5
=35 / 5
=7 <- that is the mean or average

mean-7
median-7
mode-7

b)300,250,400,300,250
-250,250,300,300,400

mean-300
median-300
mode-250 and 300

PG. 431-432 # 2-16

### Measure of Central Tendency

- is a value that represents the centre of a set of data
- can be mean, median, mode

Median - the middle number in a set of data after the data has been arranged or ordered

eg. 2, 5, 6, 8, 9 median is 6

eg. 1, 3, 6, 8, 9, 10 median is 7

*add the two middle values together then divide by two : 6 + 8 = 14 14 divided by 2 = 7

*to find the median of data sets with an even number of values (eg. 2, 3, 4, 5, 6, 7) you have to use the above steps (add together , divide sum by 2, or in other words, find the mean/average)

Mode - the most frequently occuring number in a set of data

eg. 3, 5, 7, 7, 9 mode: 7

eg. 2, 2, 4, 6, 6, 8, 11 mode: 2 and 6

eg. 1, 2, 3, 4 mode: none

eg. 1, 2, 2, 2, 3, 3, 4, 4 mode: 2

eg. 2, 3, 2, 3, 4, 2, 4, 3, 4
2, 2, 2, 3, 3, 3, 4, 4, 4 mode: none

Mean - a measure of central tendency
- the sum (adding) of a set of values divided by the number of values in a set

eg. 4, 5, 8, 9, 9
= 4 + 5 + 8 + 9 + 9 divided by 5 = 35 divided by 5
= 7 - this is the mean

Mean - A. K. A. - average

Try these, find Mean, Median, Mode.

A) 7, 8, 6, 9, 9, 5, 7, 7, 8 ,4

4, 5, 6, 7, 7, 7, 8, 8, 9, 9 median: 7 mode: 7 mean: 7

B) 300, 250, 400, 300, 250

250, 250, 300, 300, 400 median: 300 mode: 250 and 300 mean: 300

Here are some websites to give you some extra help if you're still stuck.

http://simon.cs.vt.edu/sosci/Site/MMM/mmm.html

Here is a link to a video that is catchy and helps to remember the mean, median, and mode.

Props to Julibella :). I saw the video on her post and it gave me the idea to use it.

### Measures of Central Tendancy

How to find the mean is by the sum(adding) of a set of values divided by the number of values in the set.
eg. 1+2+3=6/3 eg. 4,5,8,9,9
3 sets of values
=4+5+8+9+9/5
=35/5
=7<- this is the mean. a.k.a average
Try this mean, median, mode
A) 7,8,6,9,9,5,7,7,8,4

mean-7
median-7
mode-7
B) 300,250,300,300,400 pg.431-433 #2-16

-Here is a video about mean, median and mode. I hope it helps:)

### exam review

300 ugly kids were asked what is their favorite color. How many like blue? How many like green? How many like gold.

x3

blue 25/100 =75/300

x3

x3

green 300/100=90/300

x3

x3

gold 45/100=135/300

x3

## Thursday, June 17, 2010

\$ + \$ +\$+ !!!!!

The expression for this would be 3c+5

Write an expression representing 3 more than six times a number.

bn+3 is the expression.

bn becaue these letters are kissing that's means it is mutyplying.

+ 3 means it adding 3 of course.

SO alway's remeber that a expression means
the question. NEVER ANSWER An EXPRESSION.

Jimmy leaves home with 20\$ in his pocket. He stops at billy's house to collect the \$15
he lent to billy. He then goes and buy's flowers for casey because it is her birthday. The flowers
cost \$27, how much money does jimmy have left?

20+15=35
35-27=8
jimmy has 8 dollors left.

http://http://en.wikipedia.org/wiki/Mathematical_notation#Expressions

awesome vedio on evaluating expression.

Remeber to study for exams.
Math exam is on tuesday.

*Also try these fun math games to excersize your brain*

And don't wait for the last second to study here are some great study tips

START EARLY!

These are the top ten things that you need to know to Ace exams!
Give yourself plenty of time.
Cramming doesn’t work. It just doesn’t. When you start to study weeks ahead you have plenty of time to read everything. It also gives you time to ask questions about anything you don’t fully understand.
Use an Agenda.
Write your study time in your agenda, even if it’s only 20 minutes a night. An agenda is one of the best organizational tools you have to help you prepare for your exams.
Okay, it doesn’t have to be an actual stadium—just an area where you can leave your notes, your pencils, and your dictionary. Someplace where you are comfortable and where there is little distraction—that means no TV or blaring music!
Look at the big picture.
How many pages in total do you have to study? How much time? If you have 50 pages to cover in 10 weeks, then that is only 1page a night on weekdays, with weekends off. That’s not so bad! You can even write down what pages to study on what night.
Study a little bit every night.
When you start early enough you can easily avoid the stress and anxiety of pulling an all-nighter. And, you can move at a steadier pace—20 minutes a night is easier to handle than 7 hours the night before. By the week before the exam you’ll have read everything at least once and you’ll be prepared!
Look at the chapter or unit or section. What are the titles, heading and subheadings? Are there any bolded words? Write these down. These are key words, and they are great indicators to help you know what the material is about.
Put it in your own words.
This is known a paraphrasing and it’s a great technique to help you really understand the material. Memorization and rote repetition? That’s for robots? You need to understand the material to succeed!
Cover, recite and check.
But how do you paraphrase? It’s as easy as reading over a page, a paragraph, or a sentence, then covering it up, and saying it back in your own words!
Don’t study the stuff you know well.
Start with the most challenging sections and move on from there. There is no point studying material that you are confident you know. A quick review to make sure you remember everything is enough.
Make classroom time active learning time.
The best study tip is one that doesn’t even involve studying, but happens way before studying—in the classroom. The secret to easy studying is to be an active learner in the classroom. Raise your hand. Ask questions. Participate in discussions. Don’t just sit and wait for the teacher to teach you, get involved in learning!
The more responsibility you take for your education, the easier learning— and studying—will be

Good luck everyone!!!:)

## Tuesday, June 15, 2010

### How To Scribe

To scribe, you must learn these terms:

Link-highlight a word and press the link button then look for a site that you think will build interest, then you copy and paste the URL. After you get a link, click on 'Preview' and test the link.
For example-Artemis Fowl

Image-find an image (Google images), then save it to your computer, then browse and find the image that you saved (delete if useless). You can change the layout and size. Then you press'Upload Image' then you're done. For example-

Video-go to Youtube, then find a video that will build interest in the math topic. Once you have found a video, click on it and go to the gray box, then highlight and copy the code that is in the box titled 'embed'. Then click 'edit HTML' on the blog, then scroll to the bottom then paste the code, then paste the code, and then click compose and preview.
For example-

Font-to change the font, click the arrow next to the word 'font', then scroll down and find a font that you like and that others can read.
For example-The quick brown fox jumps overs the lazy dog and into the stainless steel pole.

Colour-to change the colour, click on the T with the multi-coloured square, and then change the colours of important facts and titles. Try not to use too much colour, as it is distracting. Also, avoid colours like yellow, as it is hard to see.
For example-The quick brown fox jumps over the lazy dog and is shot by the hunter lying in wait.

Size-to change the size, click the double T's, then choose the size you want to write with. Just don't make the size too small or too large.
For example-The quick brown fox jumped over the lazy dog...and nothing happened to it.
Hope you enjoyed this post. :)

## Friday, June 4, 2010

### Exam Review Study Guide

Important Definitions:
Perpendicular- lines that intersect at right angles (90 degrees)
Parallel- lines in the same plane that never cross or interest
Interescting- lines that cross at any angle
Perpendicular bisector- a line that divides a line segment in half at a right angle
Angle bisector- a line that divides an angle into two equal parts
Acute angle- an angle at less than 90 degrees
Obtuse angle- an angle more than 90 degrees
Right angle- an angle exactly 90 degrees

- the formula for the area of a triangle is base times height divided by 2.
- the formula for the area of a parallelogram is base times height.

If the base of a parallelogram is 50m and the height is 20m, what is the area?
A= bxh
A= 50 X 20
A = 1000 m 2

Converting fractions, decimals and percents...
-Remember that fractions are out of any whole number.
-Percents are out of 100.
-Decimals are out of 1.

Sorry for not including any pictures, my computer is messed up at the moment..

** Reminder **
Be sure to have the math package ready to hand in by Monday!
And study, study, study for the exaaaams.
Have a good weekend :D
Make sure you comment on all the blogs even the old ones?

Make sure you do all 10 of the homework package we got today so you can get marks.

1. 449-451 #3-16

2.444-445 #1-8

3.426-427 #1-17

4.405-407 #1-21

5.327-439 #1-21

6.319-322 #1-23

7.313-315 #1-20

8.270-272 #1-15

9.247-251 #1-3

10.220-221 #1-14
DEFINE
Perpendicular- Describe lines that intersect at right angles.
Parallel-Discribe lines in the same plane that never crossor intersect.
Intersecting- lines that cross at any angles.
Perpendicular bisector- A line that divides a line segment in half and is at right angles to it.
Angle bisector-
acute angle-
obtuse angle-
right angle-
formula area of triangle-
formula area of parallelogram- X
B x X

### Term 3 homework package

Your homework package is due Monday June 7 2010.
Please hand the package to me in the following order.

1. pg. 449 - 451 # 3 - 16
2. pg. 444 - 445 # 1 - 8
3. pg. 426 - 427 # 1 - 17
4. pg. 405 - 407 # 1 - 21
5. pg. 327 - 329 # 1 - 21
6. pg. 319 - 322 # 1 - 23
7. pg. 313 - 315 # 1 - 20
8. pg. 270 - 272 # 1 - 15
9. pg. 249 - 251 # 1 - 3
10. pg. 220 - 221 # 1 - 14

If you are disorganized and can't find your homework from term 3, you will have to redo any pages you are missing. Log on to mytextbook.ca for the pages you need to complete.

## Wednesday, June 2, 2010

Translation-A slide across a straight line.
Rotation-A turn in a center of rotation.
Reflection-A flip over a
mirror line.(Mirror Line can be anywhere,not only on axis)

Quadrants-The four regions on the grid.
X=Horizontal
Y=Vertical

X always before Y.

MORE EXAMPLES OF A CARTESIAN PLANE:)

EG. of Rotation:)

EG. of Reflection:)

MATH TEST TOMOROW!
STUDY FRACTIONS,INTEGERS,MEAN,
MEDIAN,MODE,OUTLIER,RANGE,
ALGEBRA,TRANSLATION,ROTATION,
REFLECTION,and etc.(WILL BE SCANTRON XD)

## Tuesday, June 1, 2010

### Term 3 Test : Thursday, June 3

Topics:

Fractions
- adding, subtracting like and unlike denominators and mixed numbers

Integers- adding, subtracting positive and negative numbers, using number lines and chips

Measure of Central Tendency- mean, median, mode, range, and outliers

Remember:
-the test is Scantron
-30 questions
-no extra time to finish your test

Exam Review- Study Guide

1. 27.53 + 1.09 + 62.78 + 9.87 = ?
2. 849.37 - 26.08 - 3290165 = ?
3. 13.94 x 22 = ?
4. 451.231 ÷ 24.13 = ?
5. 223.8704 ÷ ? = 59.54
6. 6 + 2 x 4 = ?
7. 8 ÷(1+3)(6-2) + 3squared = ?
8. 4cubed -(5x2-5)-(20+13x3) = ?

Don't forget to study all of your term 3 notes to be prepared for you test! Good Luck! ☺☻

This is a video of how to subtract mixed numbers with unlike denominators.

This is a video on how to add and subtract integers.

This is a video on how to do 2 step algebra.

These two videos are on Measure of Central Tendency: Mean, Median, Mode, and Range.