Type:

Other

Description:

This problem provides an opportunity to introduce the concept of representing operations on unknown numbers algebraically and leads to work on inverse operations. Students are asked to think of a number, follow a sequence of computational instructions and finally to enter the result into the "machine." Students explore how the "machine" works out the starting number. The Teachers' Notes page offers rationale, suggestions for implementation, discussion questions, ideas for extension and support.

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:

Algebraic representation,Functions,Grade 6,NSDL,Grade 5,Express regularity,Representation,Number concepts,Arithmetic,Analyze and persevere,Concept formation,Process skills,oai:nsdl.org:2200/20140728161122573T,Linear,Upper Elementary,Algebra,Equations,Informal Education,Middle School,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-027,Reason abstractly,Practice Standards,Number and operations,Strategies,Algebraic thinking,Operations,Communication,Mathematical language,Mathematics,Elementary School,Problem solving,Education,Construct arguments

Language:

English

Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial Share Alike

Collections:

None
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