. . . Parts of the whole

Frankenstein's Fractions

Fractions are parts of a whole!

http://vimeo.com/31149799

Fractions can be different sized pieces of a whole…

http://www.tv411.org/math/fractions-decimals-percentages/whats-fraction/activity/1/1

Or, fractions can be different counts or beats of music as in the following video…

½ of the pizza, 1/3 of the pizza, or ¼ of the pizza,

Most of the time, fractions of the same item have the same denominator (the denominator is the number on the bottom of the fraction telling how many parts will make the whole).

But sometimes two different items are put in the same group that have been divided differently and all the parts need to added together. For example, Suzi wants to add her ½ banana to the pie recipe and David wants to add ¼ of his banana to the pie. How much banana will be added

in all?½ + ¼ =?

You need to find the common denominator.

Using a visual model

http://www.pbslearningmedia.org/resource/mgbh.math.nf.addfrac/addition-of-fractions-using-a-visual-model/

Wrapping it up . . .

Fractions are used in everyday life:

To tell time- 12:30 is half past the hour

to measure- 4 oz. of chocolate is ¼ lb.

to cook – ½ cup of flour

To calculate Money- 4 quarters are $1.00

http://lsintspl3.wgbh.org/en-us/lesson/mwnet-il-probeco/1

Let’s practice!http://quizlet.com/6447606/flashcards