Paul Andersen Paul Andersen

LS4.C: Adaptation

 

In this video Paul Andersen defines adaptations and explains how organisms can become better adapted to their surroundings using the process of natural selection.  Specific examples of adaptations, like coat color in rock pocket mice, as well as a K-12 teaching progression is included.

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Paul Andersen Paul Andersen

LS4.B: Natural Selection

 
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In this video Paul Andersen defines natural selection as differential reproductive success.  He then explains how natural selection shapes organisms on our planet through variation and selection.  A K-12 teaching progression is also included.

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Paul Andersen Paul Andersen

CCC2: Cause and Effect

 

In this video Paul Andersen explains cause and effect its importance in science and engineering.  He starts by addressing the chain of interactions that must be present to show cause and effect.  He addresses the assumptions of universality and scale in determining cause and effect.  He finished the video with a progression of instruction from K-12.
 

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Paul Andersen Paul Andersen

SEP6: Constructing Explanations and Designing Solutions

 

Paul Andersen explains how scientists modify theories by constructing explanations.  He also discusses the cycle of design used by engineers to solve problems.  He starts by defining a theory as a well-established explanation of a phenomenon that is refined over time.  Examples discussed in the video include the big bang theory, the germ theory and the theory of natural selection.  He also lays out a progression for building this skill in students.

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