Re: [Phys-L] NGSS and kinematics

[Joseph Bellina <inquirybellina@comcast.net>]

John you have clearly followed this more closely. Is there any sense t he at the writers understood the deep pedagogical challenges there are in helping students change their beliefs about how the world works?

Best

Joe

Sent from my iPhone

> On Oct 27, 2021, at 5:50 PM, John Denker via Phys-l <phys-l@mail.phys-l.org> wrote:
>
> On 10/27/21 8:26 AM, Joe Bellina via Phys-l wrote:
>
> > I’ve been working on hs physical science standards that align with 
> > NGSS
>
> I offer my condolences.
>
> > and I noted that there is nothing about kinematics in NGSS.
>
> I agree with the sentiment. I would say there is "almost" nothing
> about kinematics.
>
> *) Newton's second law is barely mentioned:
>
> -- Mentioned in passing in the middle-school section on page 51:
>  https://www.nextgenscience.org/sites/default/files/AllDCI.pdf#page=51
>
> -- Mentioned in passing in the preamble to the HS section on page 75:
>  https://www.nextgenscience.org/sites/default/files/AllDCI.pdf#page=75
>
> -- Mentioned in a nontrivial way on page 79:
> https://www.nextgenscience.org/sites/default/files/AllDCI.pdf#page=79
>
> *) Conservation of momentum is mentioned twice (and wrongly expressed
> both times).
>
> *) There is a treeeemendous emphasis on "stability". An earlier draft
> defined what they meant by that, which was utter nonsense. The final
> draft simply removed the definition, leaving us with a heavy emphasis
> on a term that is undefined and unexplained.
>
> > I hope it isn’t because they think it was adequately covered in
> > middle school or elementary, because as we know that is generally not
> > the case.
>
> NGSS covers elementary and middle school, so that's never going to
> be a viable explanation for the oh-so-many omissions. Not to mention
> the contradictions and absurdities.
>
> > Does anyone know why that is?
>
> The best explanation I've heard is that NGSS was prepared by bureaucrats
> for bureaucrats, with little (if any) attention paid to the needs of
> teachers or students.
>
> Details on all this are here:
>  https://www.av8n.com/physics/ngss.htm
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