[Oz-teachers] faces on cylinder

[Nathan Beveridge]

That sounds right to me... I guess the edges would be the bit you would hurt yourself on if it bumped into it in the dark.  The faces the flat bits that would do less damage :)  What about the pointy bit at the top of the cone? Is it not an edge because it is just the bit where the face is turned in on itself and not joining two faces?

The example of the elephant and a dog is nice... I like those 'false proofs' or whatever they are called.  Like... if God is Love and Love is blind, and Ray Charles is Blind, then Ray Charles = God.

I didn't set out to hijack this thread...but anyone else have any funny ones?  It feels like Friday...I need some humour! :)

-NB

From: oz-teachers-bounces at rite.ed.qut.edu.au [mailto:oz-teachers-bounces at rite.ed.qut.edu.au] On Behalf Of Alison Miller
Sent: Thursday, 6 May 2010 7:16 AM
To: Professional community for teachers
Subject: Re: [Oz-teachers] faces on cylinder

3 faces ,2 edges for cylinder
2 faces one edge cone
Alison
according to primary schools.............
----- Original Message -----
From: Bryn Jones<mailto:bryn.jones99 at gmail.com>
To: Professional community for teachers<mailto:oz-teachers at rite.ed.qut.edu.au>
Sent: Thursday, May 06, 2010 1:06 AM
Subject: Re: [Oz-teachers] faces on cylinder

I think you have discovered calculus

The faces and edges have become
 infinite

Not easy Maths

Sent from my iPhone

Bryn

On 05/05/2010, at 10:48 PM, Denise Sweetman <denise.sweetman at optusnet.com.au<mailto:denise.sweetman at optusnet.com.au>> wrote:
Hi
Can anyone help me with a maths question please?
How many faces and edges do a cylinder and a cone have?
Opinions vary depending on teacher and text book ;-)
Many thanks
Denise Sweetman
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