Type:

Other

Description:

In this activity, learners draw a circle with a single focus, an ellipse with two foci close together, and an ellipse with two foci far apart, and compare the shapes. Learners then measure the Sun in four images each taken in a different season, comparing the apparent size of the Sun in each image to determine when Earth is closest to the Sun. This is the second activity in the SDO Secondary Learning Unit. The activity is reprinted with permission from the Great Explorations in Math and Science (GEMS).

Subjects:

  • Mathematics > General

Education Levels:

  • Grade 1
  • Grade 2
  • Grade 3
  • Grade 4
  • Grade 5
  • Grade 6
  • Grade 7
  • Grade 8
  • Grade 9
  • Grade 10
  • Grade 11
  • Grade 12

Keywords:

Middle School,NSDL,Upper Elementary,Grade 5,Mathematics:Geometry,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-115,Heliophysics,oai:nsdl.org:2200/20140407124045648T,Elementary School,Vocational/Professional Development Education,Earth and space science:Earth, moon and sun:Seasons,Mathematics,SDO,Geoscience

Language:

English

Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial Share Alike

Collections:

None
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