Field
Investigation
This part of the
investigation requires a field trip to several department stores for on-site
measurements. The measurements that the
students obtain may be somewhat imprecise because of the crude equipment that
is recommended. A builder’s contour tool
is suggested to contour the shape of the angles between the mirrors. The shape can then be traced on a sheet of
paper and measured with a protractor.
Students should be required to obtain the following for each of the
mirrors observed.
1.
approximate measures of
the angles
2.
a description of how
well the particular angle setting enables views of the front, sides and back
When the students return
to their classroom, they should compare findings with their previous
assumptions and use of this information to come up with a recommendation for
the optimal angle settings.