Presentation on theme: "Money and Fractions You can count on coins when you need a fraction of a dollar By Doug Layne June 20, 2006."— Presentation transcript:
Money and Fractions You can count on coins when you need a fraction of a dollar By Doug Layne June 20, 2006
Fractions are parts of a whole Part
The bottom number of a fraction shows how many equal parts in all 1 23 4 4 EQUAL PARTS IN ALL
The top number shows how many of the equal parts we are working with What fraction of the shape is blue ? What are the names of this fraction? One out of four or one fourth or one quarter
When you have all of the equal parts you have a whole or one = 1
Well, what does all this fraction stuff have to do with money ?
Sometimes we spend exactly whole dollars $ 3.00
Other times we spend parts (fractions) of a dollar $. 25
Coins make it easy to spend parts of a dollar because….
Coins are Fractions (parts) of a Dollar ! Half Dollars
Coins are Fractions (parts) of a Dollar ! Quarters
When we need to spend parts of a dollar, we can count on coins because they are Fractions! Fractions of a Dollar !
That way we dont have to tear, rip, shred, chop, or saw the dollar bill into tiny little pieces !
Fun Fact A penny is worth just 1 / 100 of a dollar. But it weighs more!
What Did We Learn ? Why do we need coins? How is a coin like a fraction? What coin is ½ of a dollar? What coin is ¼ of a dollar ?
Works Cited Go Metal Detecting http://gometaldetecting.com/us-coin-dime.html Picture of Dimes Go Metal Detecting http://gometaldetecting.com/metaldetectingfinds/old-us-coins/kennedy_half.jpg Picture of Half Dollars US Rare Currency http://usrarecurrency.com Picture of Dollars