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Air Pollution Modeling Curriculum

Air Pollution Modeling Environment (APoME) is a technology-enhanced learning environment that was designed to help high school students understand that air quality is the results of complex interactions among air pollutants, topographic effects, and meteorological variables. This learning environment (Air Pollution Modeling Environment, APoME) contains a computer-based modeling tool and five learning lessons.

The design of the five learning lessons followed the 5E's learning cycle (Engagement, Exploration, Explanation, Extension, and Evaluation).  These learning lessons take up fifteen 50-minute class periods and contain tool-based learning activities with the modeling tool.  In the first lesson, teachers present news about air pollution and ask questions about air quality to stimulate students' thinking.  Students then work in groups and engage in online searching to explore ideas such as PSI (Pollutant Standards Index), air quality reporting systems, and air quality testing.  In the second and third lessons, teachers introduce variables that influence air pollutant dispersion such as atmospheric stability, wind speed, and topographic features.  Student groups conduct hands-on experiments to make observations and explanations about diffusion phenomena.  They are also encouraged to explore the relationships between the variables and the concentration of air pollutant and to use the relationships to explain why in some locations or under certain weather conditions, the air quality is getting better or worse.  During the lessons four and five, students work with their group members and use the modeling tool to build a model about air pollutant dispersion.  They are given two scenarios about air quality and asked to use their model to predict air quality in the scenarios.  At the end of the fifth lesson, students evaluate the effectiveness of their model and identify the limitation of their model.

The implementation studies show that students' understandings about air quality were significantly improved after they engaged in the APoME activities.  Students designed plans with detailed procedures, identified more major variables relevant to air pollutant dispersion, carefully controlled and manipulated variables to test their model, and provided multiple ways for data collection.  These findings suggest that APoME is effective in supporting students to demonstrate expert-like modeling practices.

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