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Date: Wed Aug 22 2001 - 14:27:32 PDT

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Date: Wed, 22 Aug 2001 14:27:32 -0700 (PDT)
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Date: Wed, 22 Aug 2001 00:20:01 -0700
Subject: Pinhole Digest #702 - 08/22/01
From: "Pinhole Listserv" <pinhole@exploratorium.edu>
To: "Pinhole Listserv" <pinhole@exploratorium.edu>
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Pinhole Digest #702 - Wednesday, August 22, 2001

  Re: pinhole project ideas
          by "Andrew Coblentz" <acsl@mindspring.com>
  Re: Pinhole Digest #701 - 08/21/01
          by "yibi smith" <yibsmith@jps.net>
  Re: yearlong math project
          by "Paul Doherty" <pauld@exploratorium.edu>
  Re: 6th grade math project
          by "Ben Pittenger" <ben_pittenger@n2mail.com>
  Another math project idea
          by "Gary Horne" <gary.horne@excite.com>

----------------------------------------------------------------------

Subject: Re: pinhole project ideas
From: "Andrew Coblentz" <acsl@mindspring.com>
Date: Tue, 21 Aug 2001 07:07:30 -0700

Are you a science or math teacher? If you teach math, a great project that
I've done with my 6th grade elementary class is the stock market. If you
are interested, I can give you more details.

Andy Coblentz
----- Original Message -----
From: Gary Horne <gary.horne@excite.com>
To: <pinhole@exploratorium.edu>
Sent: Monday, August 20, 2001 11:09 AM
Subject: pinhole project ideas

> Hey all,
>
> I want to create a year-long math project for my sixth grade class.
> Ideally, this would be something that the kids would build at the end of
the
> year requiring an extensive amount of mathematics to plan. Perhaps
> something which is simple to build but can have many different =
variations.
> My hope is that, in addition to teaching the mathematics necessary for =
the
> project, the kids can test it using spreadsheets before construction.
>
> So far, I've thought of,
>
> A catapult/projectile where the kids make a launch pad and target,
>
> CO2 car
>
> Garden design (planting at different times to achieve correct look after =
x
> number of days)
>
> Solar oven
>
> But none of these are quite right. Any other ideas out there?
>
> g
>
>
>
>
>
> _______________________________________________________
> Send a cool gift with your E-Card
> http://www.bluemountain.com/giftcenter/
>
>
>
> =
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>
> To unsubscribe from pinhole, send an email to requests@exploratorium.edu
> with the words 'unsubscribe pinhole' (without the quotes) in the SUBJECT
> of the email.
>
> To subscribe to the digest and only get 1 combined message a day, send =
an
> email to requests@exploratorium.edu with the words 'subscribe digest
> pinhole' (without the quotes) in the SUBJECT of the email.
> =
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>
>

----------------------------------------------------------------------

Subject: Re: Pinhole Digest #701 - 08/21/01
From: "yibi smith" <yibsmith@jps.net>
Date: Tue, 21 Aug 2001 09:28:49 -0700

What about hot air balloons. These can be made from brightly colored =
tissue
paper. (surface area/volume). they can calculate the volume of air in =
the
balloon and the density. They can use temperature relationships to
determine the density of hot air. they can calculate the rate at which =
the
balloon should rise they can calculate wind speed. There are a lot of
posibilities.
Yibi Smith
----- Original Message -----
From: "Pinhole Listserv" <pinhole@exploratorium.edu>
To: "Pinhole Listserv" <pinhole@exploratorium.edu>
Sent: Tuesday, August 21, 2001 12:20 AM
Subject: Pinhole Digest #701 - 08/21/01

Pinhole Digest #701 - Tuesday, August 21, 2001

  project ideas
          by "Gary Horne" <gary.horne@excite.com>
  Re: pinhole project ideas
          by "Gene Thompson" <gthompso@ccsf.cc.ca.us>

----------------------------------------------------------------------

Subject: project ideas
From: "Gary Horne" <gary.horne@excite.com>
Date: Mon, 20 Aug 2001 11:09:01 -0700 (PDT)

Hey all,

I want to create a year-long math project for my sixth grade class.
Ideally, this would be something that the kids would build at the end of =
the
year requiring an extensive amount of mathematics to plan. Perhaps
something which is simple to build but can have many different variations.
My hope is that, in addition to teaching the mathematics necessary for the
project, the kids can test it using spreadsheets before construction.

So far, I've thought of,

A catapult/projectile where the kids make a launch pad and target,

CO2 car

Garden design (planting at different times to achieve correct look after x
number of days)

Solar oven

But none of these are quite right. Any other ideas out there?

_______________________________________________________
Send a cool gift with your E-Card
http://www.bluemountain.com/giftcenter/

----------------------------------------------------------------------

Subject: Re: pinhole project ideas
From: "Gene Thompson" <gthompso@ccsf.cc.ca.us>
Date: Mon, 20 Aug 2001 20:33:21 -0700 (PDT)

How about a scale model of the solar system across your city? This
involves making a scale that's big enough so you can see the planets (even
if they're just dots) but small enough so that the model fits in a
geographical area that's accessible, contact stores in the proper
locations to host the planets and the planet and project info,
constructing the sun and planets, doing the measuring, etc.etc. It takes
a while. I did this with a high school physical science class and it took
us a month to get everything set up and done...

Ellen Koivisto, SF

On Mon, 20 Aug 2001, Gary Horne wrote:

----------------------------------------------------------------------
End of Pinhole Digest

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----------------------------------------------------------------------

Subject: Re: yearlong math project
From: "Paul Doherty" <pauld@exploratorium.edu>
Date: Tue, 21 Aug 2001 11:22:28 -0700

A Sundial is a good project.

ask Lori for details.

Paul D

Paul "But it is more complicated than that!" Doherty,
Senior Staff Scientist, The Exploratorium.
pauld@exploratorium.edu, www.exo.net/~pauld

----------------------------------------------------------------------

Subject: Re: 6th grade math project
From: "Ben Pittenger" <ben_pittenger@n2mail.com>
Date: 21 Aug 2001 19:22:39 -0000

Re: 6th grade math project

When I taught math I liked using floor plans for rooms or houses for the =
students to study length, area, volume, etc. There are any number of ways =
to go about it. It doesn't have to be a standard house; it could be a =
medieval castle, a tree house, a fantasy structure, or something to link =
with another class (what are they studying in social studies or what books =
are they reading in language arts?). They can start with simple rooms or =
spaces and progress to planning more complex spaces. You can have indoor =
and outdoor spaces, such as gardens. That way students can gravitate =
toward projects they would enjoy. Groups can be assigned a space, or =
everyone can work on all spaces.

I never got the whole project going, because I only taught math for one =
year. I had planned to develop the project so that I could assign easier =
rooms for the students who were struggling a bit more, and more difficult =
rooms for the students who were habitually ahead with their work. =
Depending on how advanced you want to get, they can calculate areas of =
walls, floors, windows, doors, etc. in order to plan the 'purchase' of =
paint, carpet, glass, etc. You could then have them price out supplies as =
though they were building the real thing. You can complicate things for =
more advanced students by giving them odd-shaped rooms (round rooms, or =
rooms with gables, etc. They can calculate volumes of rooms to plan for =
air-conditioning. They can figure out distances that pipes have to run to =
go from point A to point B. To get the technology part into the =
curriculum, you can use one of those software programs for designing =
homes. I found a couple of them cheap in a bin at COSTCO.

Ultimately, they could build a scale model of their structure as that =
final project!

Just a thought.

Ben Pittenger

____________________________________________
Sign up for your free web based email today!
http://www.n2mail.com

----------------------------------------------------------------------

Subject: Another math project idea
From: "Gary Horne" <gary.horne@excite.com>
Date: Tue, 21 Aug 2001 14:38:25 -0700 (PDT)

Thanks to all suggestions. Keep em coming. This one came to me directly,
and the author asked that I post it for him. It's definitely worth sharing=
.

****
Hi Gary,=20
Tien here...=20
i have used a "string" thing (probability) as an on-going project as well=
=20
as a short-term project with my middle school students. It's quite cool=20
and must admit that when i take it to more complex levels, i don't know=20
what the fractions/probabilities/outcomes are...=20
The activity is nice in that students can continually collect data all=20
week/month/semester long... they learn as the sample size increases, so=20
does the reliability of the data and that unusual things can occur as the=
=20
sample size increases. I have posters students turned in last year if you=
=20
would like to see a few... (although i'm in LA)=20
So what am i talking about anyway??? I call it:=20
"it's knot fun/ny"=20
"knot that you would care..."=20
"what's knot to like?"=20
"knot all that it seems...'=20
etc... (you get the picture)=20
The middle school version:=20
- get six lengths of string (same color and texture) about a foot long=20
(you can decide what's the best length after you try it).=20
- hold one end of all the strings in your fist as your partner ties two=20
strings (randomly of course!) together at the other end. Repeat until all=
=20
strings are tied (leaving you with three knots where you had the six loose=
=20
ends before).=20
- hold the three knots in your fist as your partner repeats the process on=
=20
the loose ends.=20
- PREDICT what will happen when you let go of the strings and shake the=20
strings out (quite interesting in terms of spatial, abstract=20
visualizations). It's esp. good for the 8, 10 string combo's... what can=20
and cannot exist.=20
- draw and record results=20
- someone on pinhole should know how to write a program to solve this type=
=20
of problem. (hint: that would be very helpful when using 8,10 or even 12=20
strings!!!!)=20
- Solve this for yourself... (try the six strings first) it's fun!=20
In doing this in class, i've found that eventhough the outcomes are more=20
numerous than three, it is BEST to simplify to just three. Which are:=20
a) three separate loops (each consisting of 2 strings)=20
b) a small (2 strings) and a medium loop (4 strings tied together)=20
c) one large loop (all six strings tied together!)=20

As Pd (Paul) would say, "it's more complicated than that...", but start=20
simple... (the various outcomes increase when you consider how the loops=20
are/can be connected to each other or KNOT!!!!!=20

ps. a =3D 1/15, b =3D 6/15 =A0and c =3D 8/15 =A0(if i remember correctly)=
=20
blue skies,=20
t=20

FAVOR: could you post this to pinhole for me? I can only retrieve pinhole=
=20
from this email account and not able to submit to pinhole (must knot like=
=20
what i have to say... :o)=20

_______________________________________________________
Send a cool gift with your E-Card
http://www.bluemountain.com/giftcenter/

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with the words 'unsubscribe pinhole' (without the quotes) in the SUBJECT =
of the email.

To subscribe to the digest and only get 1 combined message a day, send an
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