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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 longitudethere are some strong parallels with polar coordinatessince these are part of the traditional fourth grade emphasis on geography.
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 realworld distance, measure the real distance, discuss, (compute relative error(s)).
************************************************************************ Andy Isaacs TIMS Project UICIMSE (M/C 250) University of Illinois at Chicago 840 W. Taylor, Rm 2075 SEL aisaacs@uic.edu Chicago, IL 606077019 ************************************************************************



