October 2007
Troubled Waters
(via)"Troubled Waters" is an authentic task dealing with different factors and how they change certain parameters in a river. Several of these parameters are dissolved oxygen, pH, nitrates, and fecal coliform bacteria.
Students will be using the modeling tool STELLA. Students will run a river model, interpret graphs, and adjust a variable such as wind speed and sewage load to determine the effects on Dissolved oxygen levels.
November 2006
The Breathing Earth
by 17 othersOnline simulation showing the birth, death rates, and effects of carbon dioxide emissions by various countries. Great for classroom discussions.
1
(2 marks)
