It all started when i woke up on saturday morning. I woke up to find an aliens UFO space shuttle on my front lawn. As i approached it, two small green human like aliens walked down the steps of the devious space machine. They told me that I, aswell as earth were doomed and threatened by these aliens. They said that they will spare us if they were taught some proportional knowledge. So I ran up to my bedroom and grabbed my math textbook and ran back outside.
I opened up my book to the chapter of proportion. I then pointed out one question that i wanted to show them, That question was :
What is the unit rate in two pens that cost 94 cents ?
This is how i answered it, I made a ratio table. The two aliens didn't seem too familier with the term ratio table. So i told them that it is a diagram that you can use to find a unit rate. Here is my table:
.Cents..Pens
--------------
......94..2
...../.........\
/2.........../2
.....\........./
......47..1
Do you see the ratio table ?
Good.
They still seemed a bit confused so then I desided to do a couple more questions, Another question I thought doing was this question :
A small gear turns 18 times in the same time that a large gear turns 4 times. How many times will the large gear turn if the small gear turns 54 times? Draw a diagram to help set up a proportion and solve the problem.
So this is how I answered it, The questions says to make a diagram, and my choice of diagram was a ratio table:
Small...Large
--------------
.......18..4
...../.........\
x3...........x3
.....\........./
.......54.12
One of the two aliens began to understand the concept of the ratio table, but the other was a little bit still unsure. So I decided to do another ratio table type of question just for him. That question was :
Two quarters has the same value as ten nickels.
What is the values of five quarters in nickels?
My ratio table looked like this :
NickelsQuarters
--------------
.......10.2.
...../.........\
/2.........../2
.....\........./
.......5.....1
...../.........\
x5...........x5
.....\........./
.......25...5
Both aliens then understood the concept of proportion and also learnt how to use a ratio table, and went away without doing any harm to our planet. And thats how i saved the earth from mass destruction from aliens with my mathematical knowledge. (your welcome)
THEE ENDD !
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1 comment:
good job, you really did a good job on the colour texts and especially the tree table .
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