Type:

Other

Description:

In this 1.5-minute video, mathematician Dr Ria Symonds describes a characteristic of numbers such as 7, which after repeated squaring of digits and summing of the squares, result in the number 1, the first natural number. This introduction invites an investigation to find other "happy" numbers, and to find out what happens to "sad" numbers.

Subjects:

  • Mathematics > General
  • Education > 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:

Grade 3,NSDL,Grade 4,Grade 5,Addition,Express regularity,Mathematics,Number concepts,Exponents,Arithmetic,Analyze and persevere,Concept formation,Process skills,oai:nsdl.org:2200/20140728161159113T,Upper Elementary,Mathematical language,Social Sciences,Multiplication,Patterns and sequences,Informal Education,Whole numbers,Use appropriate tools,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-027,Practice Standards,Square numbers,Number and operations,Algorithms,Number patterns,Computing and Information,Operations,Mental calculation,Communication,Elementary School,Education

Language:

English

Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial Share Alike

Collections:

None
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