Date: Aug 27, 2013 6:22 PM
Author: Richard Strausz
Subject: Re: To K-12 teachers here: Another enjoyable post from Dan Meyer
>

> On Aug 27, 2013, at 4:57 PM, Richard Strausz

> <Richard.Strausz@farmington.k12.mi.us> wrote:

>

> > So far, there are two 'voters'. I say that an

> exercise which helps students answer the question

> 'How can you fit a quadratic function to a set of

> data?' broadens the usual scope of an algebra class

> in a positive way. You vote 'No'.

>

> Broadens? How exactly do you broaden on something you

> didn't even teach? He isn't even trying to tie this

> activity to the quadratic function let alone the

> reasoning behind that function. No one is fitting

> anything to a quadratic function here. They are

> fitting a poorly thought out activity to a curved

> line on a piece of paper. How can anyone be gaining

> an understanding of ax^2+bx+c = 0 through this

> activity?

>

> Algebra avoidance has been pretty well documented on

> math-teach.

>

> Bob Hansen

>

How do you know that 'he' (actually the 'they' of the fellow posters and readers like me) didn't do any teaching of the quadratic function?

Richard