Paul Andersen Paul Andersen

PS4.B: Electromagnetic Radiation

In this video Paul Andersen describes some of the properties of electromagnetic radiation. The electromagnetic spectrum varies by wavelength from radio waves to gamma rays. We only see a portion of the spectrum known as visible light. A number of phenomenon (including refraction, emission spectrums, and gamma radiation) are discussed.
 

In this video Paul Andersen describes some of the properties of electromagnetic radiation.  The electromagnetic spectrum varies by wavelength from radio waves to gamma rays.  We only see a portion of the spectrum known as visible light.  A number of phenomenon (including refraction, emission spectrums, and gamma radiation) are discussed.  A teaching progression K-12 is also included.

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Paul Andersen Paul Andersen

CCC2: Cause and Effect

Crosscutting Concept 2: Cause and Effect - Mechanisms and Explanation 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.
 

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

SEP3: Planning and Carrying Out Investigations

Science and Engineering Practice 3: Planning and Carrying Out Investigations Paul Andersen explains how investigations are used by scientists to answer questions and by engineers to test designs. He delineates be investigative and observational science. He demonstrates the formation of a good question the design of an effective investigation.
 

Paul Andersen explains how investigations are used by scientists to answer questions and by engineers to test designs.  He delineates be investigative and observational science.  He demonstrates the formation of a good question the design of an effective investigation.

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