In this video Paul Andersen explains how many possible solutions are developed in the design process. As many solutions to the problem are identified using a brainstorming process. These solutions are compared to the specific constraints and criteria of the solution. Models are created to test the viability of each solution. A K-12 teaching progression is also included.
In this video Paul Andersen explains how the resources required for survival come from the Earth. The resources are not evenly distributed on the planet and neither are the humans. According to the NGSS we need to limit the use of nonrenewable resources (like oil and coal) through regulations and increase the use of renewable resources. A teaching progression K-12 is also included.
Paul Andersen explains the importance of argumentation in improving both understanding and design. This video begins with a discussion of the heliocentric and geocentric model of the Universe that eventually lead to the Copernican Revolution. It highlights the importance of both informal and formal arguments. It finishes with a discussion of the educational progression including a great question.