Type:

Other

Description:

This virtual manipulative is designed to help conceptualize the subtraction of integers. Positive integers are black chips and negative integers are red chips. Dragging a single black on top of a red chip together makes the pair disappear (visually emphasizing that the sum is 0). Users may practice problems generated by the computer, themselves or free play with the chips. There are separate tabs to access information for the user, the teacher and to seek help with instructions.

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:

Number concepts,NSDL,Grade 5,Visual representation,Reason quantitatively,Mathematics,Social Sciences,Arithmetic,Concept formation,Process skills,oai:nsdl.org:2200/20140728160953738T,Upper Elementary,Subtraction,Modeling,Informal Education,Integers,Middle School,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-027,Practice Standards,Grade 6,Number and operations,Representation,Operations,Mental calculation,Connections,Elementary School,Vocational/Professional Development Education,Education

Language:

English

Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial Share Alike

Collections:

None
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Non-profit Tax ID # 203478467