Lesson idea. This presentation looks at claims of alien encounters and at arguments on whether humanity is alone. It concludes with a probabilistic argument based on the Fermi paradox. This is lesson 6 of a series of 6 entitled Astronomy Master Class.
Teaching approach. This last of six presentations to recruit students for A level physics, is more light-hearted and simpler than the two previous resources. It considers the arguments around whether or not humanity is alone and includes an initial look at the bizarre nature of many of the claims of alien encounters - including a fictional one for good measure - before moving onto the more serious side of alien hunting. It concludes with a probabilistic argument based on the Fermi paradox. (edit)
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A 26 minute narrated screen cast which is part of the full, six hour 'Astronomy Master Class'. Also supplied as a Prezi and a Acrobat file should you wish to do the presentation yourself.
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