Recognize that stable systems often involve underlying dynamic changes (e.g., a chemical reaction at equilibrium has molecules reforming continuously).ĭescribe the effects of error in measurements.ĭescribe changes to matter caused by heat, cold, light or chemicals using a rate function.
Identify the function of subsystems within a larger system (e.g., role of thermostat in an engine, pressure switch).ĭescribe the interrelationships among inputs, processes, outputs, feedback and control in specific systems.Įxplain the concept of system redesign and apply it to improve technological systems.Īpply the universal systems model to illustrate specific solutions and troubleshoot specific problems.Īnalyze and describe the effectiveness of systems to solve specific problems.ĭescribe concepts of models as a way to predict and understand science and technology.ĭistinguish between different types of models and modeling techniques and apply their appropriate use in specific applications (e.g., kinetic gas theory, DNA).Įxamine the advantages of using models to demonstrate processes and outcomes (e.g., blue print analysis, structural stability).Īpply mathematical models to science and technology.Īpply patterns as repeated processes or recurring elements in science and technology.Įxamine and describe recurring patterns that form the basis of biological classification, chemical periodicity, geological order and astronomical order.Įxamine and describe stationary physical patterns.Įxamine and describe physical patterns in motion.Īpply scale as a way of relating concepts and ideas to one another by some measure.Īpply dimensional analysis and scale as a ratio.ĭescribe patterns of change in nature, physical and man made systems.ĭescribe how fundamental science and technology concepts are used to solve practical problems (e.g., momentum, Newton's laws of universal gravitation, tectonics, conservation of mass and energy, cell theory, theory of evolution, atomic theory, theory of relativity, Pasteur's germ theory, relativity, heliocentric theory, gas laws, feedback systems).
Science and Technology: Unifying Themes: Pennsylvania's public schools shall teach, challenge and support every student to realize his or her maximum potential and to acquire the knowledge and skills needed to:ĭiscriminate among the concepts of systems, subsystems, feedback and control in solving technological problems.
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