Math Forum

Re: To K-12 teachers here: Another enjoyable post from Dan Meyer > myopia

On Thu, Jul 19, 2012 at 5:55 AM, Robert Hansen wrote:

Transforming? There is a step before applying the technique of

Transforming? There is a step before applying the technique of "completing the square" that is required and that is to come up with the technique of

For me it opened up the idea that the solution is often not direct. I wasn't thinking of it as "learning to complete a square" I was thinking of it

On Wed, Jul 18, 2012 at 11:23 AM, Robert Hansen wrote:

Fine, but I had to point that out.:)

Fine, but I had to point that out.:)

When I say "Study Solutions" I mean pretty much what you do when you say "How Algebraic Transformations

I can approach what you mean only through what you wrote, and the history
of your writing suggests that you frequently say something other than

Fascinating. I see you have adopted Paul's philosophy of telling the speaker what they mean. Any rebuttal would be reinterpreted and useless at this

On Tue, Jul 17, 2012 at 6:41 AM, Robert Hansen wrote

If I was talking about mechanistic solutions then I would have

> It does such a great job in laying the foundation for this that by the 6th-grade it is almost too