Area

Area is the space a shape takes up. It is described in square units. (4 cm 2)

Review:

Area of a square or rectangle:

Length times width.
A=L x W
A=6 x 2
A=12 cm 2

Area of a parallelogram

Base times height

A= B x H
A= 10 x 5
A= 50 m 2




Area of a circle

A= pi r 2



Use pieces of circle to create a shape close to a parallelogram.

Area problems

find the area of a circle with the radius of 10 m.

A= Pi r 2.
A=3.14 x 10 2
A=3.14 x 100
A=314 m 2.

Find area of following circles:


8 cm
A= pi r 2
A= 3.14 x 82
A= 3.14 x 64
A= 200.96 cm2

14.8 m
A= pi r 2
A= 3.14 x 14.82
A= 3.14 x 219.04
A= 687.79 m2


Divide the diameter by 2 to get the radius. 20 cm / 2 is 10 cm.
A= pi r 2
A= 3.14 x 102
A= 3.14 x 100
A= 314 cm 2

6.8 m / 2 is 3.4
A= pi r 2
A= 3.14 x 3.42
A= 3.14 x 11.56
A= 36.30 m 2

Here is a link of a video to help you!

Probability

Probability is the chance of an event happening.

Probability = favorable outcomes over possible outcomes.

It can be expressed as a ratio, a fraction, or a percent.
Outcome- Is one possible result of a probability experiment.

Favorable outcomes- Is a successful result of a probability experiment.





Check this out:

If you roll a die, the probability of you getting 1,2,3,4,5 or 6 is all the same.
They're all equal.

Brown
Orange
Orange
Red
Red
Red
Blue
Blue
Blue

The probability of getting each color is unequal

How To Scribe

This is a demonstration on how to scribe.

Link- highlight a word and press the green button. Then look for a site that you think would build interest and that is about the topic. Then you copy and paste the URL. After you get a link, click preview to check the link. Check out this link!

Image- find an image (google image) then save it to your computer. Then browse and find the image. You can change the layout and size. Then press upload image. See this image!











Video-Go to youtube and find a video that will build interest about the topic you are discussing. Once you've found a video, click on the grey box anf highlight and copy the code that is in the box titled "embed". Then click edit HT.ML. Scroll to the bottom then pick the code and press preview. See this video!:



Font-To change the font, click the arrow next to the word "font." Scroll down and find a don't that you like and that all can read.

Colour-To change the color, click on the T with the colored squares. Then choose a color. It is best to change the color of important facts, but try not to use bright colors that are hard to see.

Size- To change the size, click the sign with the double T's. Then change the size you want to write with. Don't pick anything too small or too large.