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Five Miles until Friday? Addressing Misunderstandings of Light-Years.

Tytuł :
Five Miles until Friday? Addressing Misunderstandings of Light-Years.
Autorzy :
Brown, Katrina ()
Brown, Todd ()
Hardy, Wendy ()
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Temat :
LIGHT-year
FIFTH grade (Education)
URSA Major
ORION (Constellation)
ASTROPHYSICS study & teaching
Źródło :
Science Activities. 2015, Vol. 52 Issue 2, p25-30. 6p. 1 Color Photograph, 1 Illustration, 1 Diagram, 4 Charts.
Czasopismo naukowe
In this fourth and fifth grade activity, students become comfortable with the concept that light-years are a measure of distance, not time, and discover how we are looking back in time when we look at stars. Since the enormous distances in space can make astronomical studies even more confusing, students explore the meaning of a light-year by first examining a unit on a smaller scale: the person-walking-week. Students determine how many kilometers a person can walk in a week and then use this unit of measurement to determine distances between cities. Once comfortable with the idea that this is a unit of distance, students then tackle the light-year and examine the stars in the Big Dipper and Orion. Using known distances to the stars, they determine when light seen today from those stars originally began its journey through space. Cross-curricular connections can then be easily made with topics in history. [ABSTRACT FROM AUTHOR]
Copyright of Science Activities is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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