Type:

Other

Description:

This interactive Java learning tool, which was constructed using the cross-platform open educational resource GeoGebra, allows a teacher to demonstrate and explore addition and subtraction of integers from -10 to 10 with a number line model with students. Users can change the values of the first and second term using sliders. Another option models subtraction of the first term, for example, - (-4) + (-5). Check boxes allow users to show each expression, model, and answer individually.

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,Make use of structure,NSDL,Grade 5,Addition,Express regularity,Representation,Number concepts,Social Sciences,Arithmetic,Analyze and persevere,Concept formation,Process skills,Number and operations,Visual representation,Algebra,oai:nsdl.org:2200/20140728160743071T,Critical thinking,Subtraction,Modeling,Informal Education,Integers,Middle School,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-027,Comparison of numbers,Practice Standards,Grade 6,Elementary School,Reason quantitatively,Algebraic thinking,Operations,Mental calculation,Upper Elementary,Communication,Mathematical language,Grade 7,Mathematics,Engineering,Vocational/Professional Development Education,Expressions,Education,Reasoning

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