Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: Polar Graphing
Replies: 2   Last Post: Feb 28, 1995 9:29 AM

 Messages: [ Previous | Next ]
 Andy Isaacs Posts: 2 Registered: 12/6/04
Re: Polar Graphing
Posted: Feb 28, 1995 9:29 AM

Eileen Abrahamson writes:

>I am looking for some resources for Polar Graphing that would be
>appropriate for use with 4th grade students. I would appreciate any
>suggestions.

SCIS (Science Curriculum Improvement Study) used to have a grade 4 unit
(Relative Position and Motion) that included playground mapping with polar
coordinates. It worked well, as I recall. I'm pretty sure the unit was
retained in SCIIS, but I don't know about the current incarnation of this
wonderful project.

You might also think about latitude and longitude--there are some strong
parallels with polar coordinates--since these are part of the traditional

P.S. I tried to get my colleagues here to include polar coordinates in
grade 4, but was outvoted. I think it's a great topic and not all that
hard. Something like comparing rectangular coordinate maps made with polar
coordinate maps with the actual mapped region seems like a natural. For
example, gather some data, draw a map (or maps), measure a distance on the
map(s), use the map scale(s) to predict the real-world distance, measure
the real distance, discuss, (compute relative error(s)).

************************************************************************
Andy Isaacs
TIMS Project UIC-IMSE (M/C 250)
University of Illinois at Chicago 840 W. Taylor, Rm 2075 SEL
aisaacs@uic.edu Chicago, IL 60607-7019
************************************************************************

Date Subject Author
2/27/95 Eileen Abrahamson
2/28/95 Michael Moy 24-Feb-1995 1532
2/28/95 Andy Isaacs