Before Your Cruise – Lesson Plan


    Before you take your students on a cruise be sure that they are familiar with the geography of the lake or river that they will be visiting.  If you are taking your class on one of Grand Valley State University’s (GVSU) vessels, the D.J. ANGUS (berthed in Grand Haven, Michigan) or the W.G. JACKSON, (berthed in Muskegon, Michigan) you might wish to use maps given in Figure 1 or Figure 2, respectively.  (See http://www.gvsu.edu/wri/education/ to learn how to use one of GVSU’s vessels.)  Aside from stations in Lake Michigan, the stations you are most likely to make aboard these vessels are indicated on the maps.  Most cruises in Spring Lake stop at Viet’s Landing or Deep Hole.  In the Grand River, Turning Basin and the tannery are the most common stops.  And in Muskegon Lake, most classes stop at Car Ferry Dock.  Besides discussing the geography of your cruise destination with your students, you might print the appropriate map and distribute copies to your students to take along on the cruise.  Then at each station they can locate themselves on the map.

    You should also discuss the types of data that you will be collecting and what the data tells you about water quality (see http://www.gvsu.edu/wri/education/manual.htm).  To get your students thinking about the analyses they will be making, you might ask them to hypothesize as to which body of water that they will be visiting will have the highest value for the various tests planned and why.  For example, they might predict that the turbidity of the Grand River will be higher than that of Lake Michigan.  However, the results of some analyses, pH for example, are probably harder to predict.  After returning from the cruise, the students can examine their data and determine which of their hypotheses were correct.  In cases in which they were incorrect, the students can come up with explanations as to why the results were different than what they had predicted.

    Before holding such a class discussion or making an assignment you might wish to review data collected during recent cruises on the lake or river you will be visiting.  If you are going on an ANGUS or JACKSON cruise, you can do that by going to GVSU’s Annis Water Resources web page (http://www.gvsu.edu/wri/education/waterdata.htm) and analyze the data online.  Probably the easiest way to view the appropriate data is to use the “General Search” engine and enter the body of water of interest (e.g., “Muskegon Lake”).

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LIVING WITH THE GREAT LAKES
BROUGHT TO YOU BY:
GRAND VALLEY STATE UNIVERSITY
DEPARTMENT OF GEOLOGY
ALLENDALE, MICHIGAN 49401