Science, 2009
  Grade Level:   9-12  
  EALR 1:   Systems  
  Big Idea:   Systems (SYS)  
  Core Content:   Predictability and Feedback                   
  Description:   In prior grades students learned how to simplify and analyze complex situations by thinking about them as systems. In grades 9-12 students learn to construct more sophisticated system models, including the concept of feedback. Students are expected to determine whether or not systems analysis will be helpful in a given situation and if so, to describe the system, including subsystems, boundaries, flows, and feedbacks. The next step is to use the system as a dynamic model to predict changes. Students are also expected to recognize that even the most sophisticated models may not accurately predict how the real world functions. This deep understanding of systems and ability to use systems analysis is an essential tool both for scientific inquiry and for technological design.  
  Content Standard:   9-12 SYSB Systems thinking can be especially useful in analyzing complex situations. To be useful, a system needs to be specified as clearly as possible.  
Students are expected to:
  • Determine if a systems approach will be helpful in answering a question or solving a problem. *b
  • Represent the system with a diagram specifying components, boundaries, flows, and feedbacks. *a
  • Describe relevant subsystems and the larger system that contains the system being analyzed. *a
  • Determine how the system functions with respect to other systems.
    Mathematics Connections
  • *a    A1.8.A   Analyze a problem situation and represent it mathematically.
           A1.1.A   Select and justify functions and equations to model and solve problems.
  • *b    A1.8.B   Select and apply strategies to solve problems.
           A1.8.D  Generalize a solution strategy for a single problem to a class of related problems, and apply a strategy for a class of related problems to solve a specific problem.