1. Team members may communicate with each other while the event
is in progress and may share preparative and identification activities.
2. Books, prepared charts or other aids, except those provided,
may not be used during the event.
3. Calculators and slide rules may not be used.
to the Teacher
1. The students should learn proper and efficient microscope practice
and the use of dichotomous keys. A team should be encouraged to
divide responsibilities between slide preparation, microscopy, identification,
2. We will plan on having 2 microscopes available for each team.
All ' slides and other preparative materials will be provided.
3. Good sources of organisms are aquaria, pond water, etc. We will
put together mixtures of protozoa and algae but may throw in a "ringer"
or two. Keys will be provided, based on something like the "How
to know" series: THE PROTOZOA, T.L. Jahn and THE FRESHWATER
ALGAE, G.M. Prescott, Wm. C. Brown, Dubuque, Iowa. Our key will
be a condensed form and probably will not include pictures or drawings.
4. Verification of identification may require drawings, answers
to specific questions or visual verification by judges. This remains
to be worked out.
5. Quantitative questions will most likely involve dimensions (lengths,
cell volume, population densities, etc.) based on knowledge of field
diameters and magnifications.