Tuesday, January 8, 2008

Kierra's Scribepost Jan.8/2008

Kierra's Scribe.//
Hey Peeps. Today in class we reviewed strategies for adding fractions. The strategies were: Double # Line, Money, and Clocks.

[see one, do one, teach one ]
** Then Mr. Harbeck says *oink oink oink

1) Using the Double # Line:
This stratgie works best when you have ugly fractions to add, and the denominators will give you an ugly common denominator on the number line.
For using the double # Line as you can see in Nintendo's example 9/ 18 and 2/16 were simplified into 1/2 and 1/8. From there we were able to multiply the 2 denominators to get  common denominator.

The other way to do this would be t
o work with the ugly fractions by multiplying the 2 numbers denominators and simplifying 
your answer.

2) Using Money:
The best way to use money would be when the denominator works with 100. Yes it can be an ugly denominator too!

As you can see in the picture. 1/4 and 1/2 are simple fractions. So 1 quarter of 100 is 25 cents and 1/2 of 100 is a dollar.

When you get 3/50 the fraction is saying 3 50ths out of 100. with is 3 X 2 = 6/100. and you do the exact same with the other fraction. 15/100= 21 cent/100

3) Using Clocks:
Again with clocks the best way to use this would be when the denominator is friends with 60 (60 mins. on a clock) So the denominators that are friendly with 60 are:
/2, /3, /4, /5, /6, /10, /12, /15, /20, /30.
As you can see in the picture. 1/2 and 3/20 simplified out = 30/60 and 9/60. From there since they are already simplified all you have to do is add the numerators= 13/20 (already simplified. The ugly part of the question was 3/20, which mean't 3 2oths out of 60.

that was class!

9 comments:

Mr. H said...

I like how you used a photo to explain your ideas in the scribe. Clever way to do it. Thanks for scribing.

"JorDer 8-16 said...

good job. i like the pics because theyre easy to understand. but if you ever call me a 'peep' again ill slap you

kiahna 8-16 said...

good job i like how u did all ur work with pictures instend of paint because it is easier to understand that way

Danica16 said...

hey it was a very good scribe i think anyone who was away should get cought up with this scribe


Nintendo D.S

derjor1 said...

Awesome on the doing the pics and all the math. Very very very interesting Scribe. I easily understanded it.

☺☻♥♦♣♠•◘○ -- jasmineS said...

I like how you gave an example of an hard way of doing the strategies good job :)

david.8.16* said...

Like everyone else, awesome job on explaining and great pics. the thing i would kind of ask would be for anything like homework if i was away.

Nathaniel 8-16 said...

great scribe. i like how you used pics instead of just explaining.

Drea said...

I like how you showed your work with pictures and used a simple strategy to explain your answers.