The student's task is to draw contour lines that connect the dots correctly, with the rules that contour lines never cross and contour lines create a V upstream. I have an example worksheet for this activity. However, the basic idea of the worksheet I have is to create a predictive forecast map. Data include temperature, precipitation, wind, barometric pressure, relative humidity, and clouds. Students have a difficult time understanding very large magnitudes, such as those in astronomy, and very small magnitudes, such as those in dilution of a substance in water.
Students methodically dilute their mixture, learning about parts per million and parts per billion .
These units of measurement gain meaning in the context of pollution effects and chemicals in drinking water. I have an example worksheet for this activity. Page prepared by Vicki L. Almstrum . Any suggestions, comments welcome.