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203 records found. Currently displaying page 13 of 21 [<< Prev] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 [Next >>]
Oscillations 1A: Fun with Springs
Author(s): Anne LaVigne, Jennifer Anderson, & in collaboration with the CLE Subject: Cross-Curricular
  Students explore a simple spring simulation is see how springs behave, given different characteristics. Students can change the springiness, the resistance, and the amount of push or pull.

Complex Systems Connection: Cause within System. Five interdisciplinary areas are covered in a series of lessons, utilizing a family of models that all generate oscillation. Oscillation in real-world systems is often considered problematic rather than a consequence of system structure. This progression of lessons will help students understand that undesirable behavior can be a consequence of system structure and not a result of outside, uncontrollable influences. In other words, a system that oscillates does so because it has an inherent tendency to do so.
  PDF

Link to the simulation: http://www.clexchange.org/curriculum/complexsystems/oscillation/Oscillation_SpringA.asp
Oscillations 1 Background Information on Simulation Created for Lesson 1: Springs Everywhere: Exploring Spring-Mass Dynamics
Author(s): Anne LaVigne, Jennifer Andersen, & in collaboration with the CLE Subject: Cross-Curricular
  This lesson is a precursor to the Oscillation curriculum created for the Complex Systems Project. Experimenting with a virtual spring will help students gain an intuitive understanding for why a spring oscillates. This knowledge will be reinforced in other lessons in this series.

Complex Systems Connection: Cause within System. Five interdisciplinary areas are covered in a series of lessons, utilizing a family of models that all generate oscillation. Oscillation in real-world systems is often considered problematic rather than a consequence of system structure. This progression of lessons will help students understand that undesirable behavior can be a consequence of system structure and not a result of outside, uncontrollable influences. In other words, a system that oscillates does so because it has an inherent tendency to do so.
  PDF
Mosquito Nets for Fishing
Author(s): George Richardson Subject: Cross-Curricular
  Mosquito nets are widely considered an effective ways to stop the spread of malaria. But countless fishermen using their mosquito nets to catch fish instead. George Richardson thought of looking at the issues through the vantage point of the various stake-holders. Usinsg tools of system dynamics to look at the issue, this is a series of maps that George used in his thinking.
 
Models For Use with At-Risk Students
Author(s): Ron Zaraza Subject: Cross-Curricular
  From CC-STADUS. Six models, accompanied by student work packets, which cover a variety of topics that are either difficult for many students to grasp, or are not usually taught to students identified as At-Risk. The six models are: Basic Coordinate Graphing; The Bathtub: Adventures in Linear Graphs; Changing Slopes; Parabolic Graphs; Exploring Feedback: Reservoir Control; and Population Growth and Renewable Resources. Not designed exclusively for use with identified At-Risk students.
  Zipped (Models & PDF)
Modeling Your Future
Author(s): Bob Allnutt, J. Harvester, & J. Miller Subject: Cross-Curricular
  From CC-STADUS. A STELLA Model for use in the classroom; explores education-income dynamics.

Complex Systems Connection: Short/Long Term Conflicts. Managing money, in personal finances or in running a business, often involves setting both short-term and long-term goals. Sometimes goals are in conflict between these timeframes, such as spending now versus saving/investing for future financial well-being. This also applies to choosing to spend time on education early in life for the opportunity to earn a higher income later. This simulation helps students explore the long-range implications of choices they make now.
  Zipped (Models & PDF)
Modeling Dynamic Systems Section 9
Author(s): Diana Fisher Subject: System Dynamics
  Supply chain dynamics are useful for illustrating the complex system characteristic that cause and effect are often separated by both time and space. Supply chains are often global, with decisions taken today causing impacts into the future and across national boundaries. The lessons of this section can also be used in conjunction with the Oscillations curriculum, particularly the lesson on commodity cycles, to illustate that the cause of a problem is within the system.
  PDF

Link to the simulation: http://www.iseesystems.com
Modeling Dynamic Systems Section 8
Author(s): Diana Fisher Subject: System Dynamics
  Policy analysis gives students an opportunity to learn first-hand that complex systems are rich in feedback. They will experience the frustration of implementing well-meaning interventions, only to have them defeated by the feedback mechanisms of the system itself. They will learn why some policies have more leverage than others, and why those policies are often the most difficult to implement correctly in real life.
  PDF

Link to the simulation: http://www.iseesystems.com
Modeling Dynamic Systems Section 7
Author(s): Diana Fisher Subject: System Dynamics
  The dynamics of epidemics can be used to impart an intuitive understanding of what it means to say a policy has "high leverage." Students can be tasked with conducting policy analysis to determine the leverage points in preventing an infectious illness from becoming an epidemic. Along the way they will learn why well-intensioned but low-leverage policies in real life often fail to have the desired effects in complex systems. For some illness/disease, symptoms appear long after initial infection. Sometimes people travel great distance while infected because they are unaware of the infection. Medical "detectives" faced with an epidemic must understand how the infection spreads and how quickly. Delays in the system make this more difficult.
  Link to the file: http://www.iseesystems.com
Modeling Dynamic Systems Section 6
Author(s): Diana Fisher Subject: System Dynamics
  In the classroom example provided in this section, the author lists many "potential systems problems" that are related to the issue of overpopulation. As an extension exercise, students can be asked to identify ways in which people have attempted to solve these related problems. Did the solutions address the underlying population issue in any way? Were they successful interventions? In complex systems, proposed solutions that do not recognize and address the underlying dynamics that need to be changed are low-leverage policies; they usually fail to achieve any significant change in the overall behavior of the system. Students can be asked to undertake a similar analysis in their own investigation of a news story.
  PDF

Link to the simulation: http://www.iseesystems.com
Modeling Dynamic Systems Section 10
Author(s): Diana Fisher Subject: System Dynamics
  There are several characteristics of complex systems that can be discussed with students during these lessons. The fictitious city seems to face a dilemma; the tanning industry provides needed jobs in the present, but water pollution can cause serious detrimental effects over the long term. This is closely coupled with the idea that cause and effect in complex systems are often separated by time and space. In the case of pollution, contamination can take decades to produce measurable effects. In the meantime, the range of impact can spread far from the initial source via transport in water, wind, etc. Finally, the lesson mentions that tanning has been outsourced from this country to developing countries; a classic case of "shifting the burden." Rather than allowing the true costs of tanning to be reflected in the prices of the finished goods, the industry itself escapes pressure to reform by sending the negative consequences to other, less regulated countries.
  PDF

Link to the simulation: http://www.iseesystems.com
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