Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
NCTM or The Math Forum.



Re: When math makes sense  w/ cooking, consruction
Posted:
May 30, 2013 7:35 AM



On May 29, 2013, at 1:10 AM, Wayne Bishop <wbishop@calstatela.edu> wrote:
> Details of the algebra notwithstanding, what in the world did you think I meant? "Better would be to have them express  and then graph   volume of resulting cylinders as a function of side length of rectangles of fixed area and find the maximum. Nice algebra and it greases the skids for eventual calculus. What a concept."
Nice idea, but wrong problem.:) The problem with this problem is that without a bottom and/or top to the cylinder, the volume for a fixed surface area has no maximum. The shorter/wider you make the cylinder, the larger the volume.
Bob Hansen



