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Direct and Inverse Proportion - Comments and DiscussionThis is the comment and discussion page for the article Cat and Mouse: Direct and inverse proportion, published in Directory : Mathematics.
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pbbowen says:
Being a new HS math teacher, in my 50's, I have forgotten many of these kinds of problems. It's fun to think about them again.
I'm dealing with a group of students who, though in the 10th grade, are struggling with a sixth to eighth grade foundation in math. They require a careful step-by-step approach to any confusing problem. So I have to break them down into tiny pieces.
I have only just seen this article and haven't thought about it enough, but has there been a work sheet developed to help guide the students though this problem?
Peter
Douglas Twitchell says:
Peter,
I'm not sure about that; I haven't seen one...but I'll ask around and get back to you in a day or two. 
Douglas Twitchell says:
I got thinking about this, and remembered I had seen a worksheet type thing online...I discovered it because it linked to my article.
Anyway...it's probably not exactly what you're looking for, but here's the link:
World Of Variation
John Lindle says:
I discovered this web site by accident today and found reference to the direct and inverse variation problems concerning cats and mice etc.. I have been teaching mathematics now for 30 years and I, like many math teachers, enjoy collecting old math books. My oldest has a publication date of 1654!. Do some research on what used to be called the "DOUBLE RULE OF ONE". It is very interesting and can be used to solve problems of this type almost instantly. Good Luck
Douglas Twitchell says:
Thanks John. I look forward to hearing more of your ideas on this site!
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