Thursday, January 17, 2008

POTU #3 - The String Problem

Part I: A string is stretched corner to corner on a floor tiled with square tiles. If the floor is 28 tiles long and 35 tiles wide, over how many tiles does the string cover?

Part II: Generalize for any rectangular room whose floor is covered with square tiles.

Be sure to follow all the standard POTU Write-Up guidelines. See past post http://montessori-algebra.blogspot.com/2007/12/potu-write-up.html for these guidelines.

PLEASE ASK QUESTIONS IF YOU DON'T UNDERSTAND SOMETHING!

Due:
Blue: Thursday, January 31
Green: Thursday, January 31
Red: Friday, February 1

6 comments:

Anonymous said...

Are the floor tiles above drawn to scale?

Maryann said...

It does not make a difference what size the tiles are. The important thing is that they are SQUARE tiles.

Anonymous said...

uhh..for Part II, do we have to find a rule or something to figure out how much tiles the string passes over? or do we just use graph paper and draw the string over a certain amount of tiles?

Maryann said...

yes you are finding a rule that would work with any number tiles. If I ask for a 14 by 35 sized floor, you should be able to tell me the answer using the rule without having to draw out all the tiles. Hope that this clears it up.

Anonymous said...

how are you supposed to measure each tile?

Maryann said...

you're not supposed to measure the tiles. The size of the tiles do not matter. They are asking about how many tiles the string touches when stretched corner to corner.