when am I ever going to use this?

Sometimes, when I am most frustrated with a problem or concept I ask myself when will I ever use this in real life?? Sometimes this question is not obvious and at other times it is. Here are 5 examples of when I have used mathematics in everyday life.
1. Tipping at a restaurant.
2. Baking.
3. Giving Change.
4. Measuring....anything.
5. The sunday sudoku....:)

3 is a Magic Number

So lately I have been working on prime numbers. If you don't know what a prime number is: Here you go: 

A Prime Number can be divided evenly only by 1 or itself.
And it must be greater than 1.

Example: 7 can be divided evenly only by 1 or 7, so it is a prime number.

If it is not a Prime Number it is called a Composite Number

Example: 6 can be divided evenly by 1, 2, 3 and 6 so it is a composite number.

And for my homework over the weekend I had to find the multiples of 2,3,5,7, and 11 and color them on separate prime number sheets. And I found some pretty interesting patterns. Take a look at the example of the multiples of 3 below: 

You will notice if you turn your head slightly that this collection of multiples makes a pattern, like stripes.
3 is a really interesting number to play with, it can be found in many different types of letters and has a great mathmatical importance in one of the most elementary shapes: A triangle. A triangle has 3 sides, 3 corners, 3 angles and when you have a 3-demensional triangle which has 6 sides. And 3+3=6! So many different patterns of 3.
In conclusion enjoy this school house rock video about the magical properties of 3!
http://www.youtube.com/watch?v=0LZ4j4598ws


YAAAAAAAYYYYYYYYYY 3333333333