This interactive lesson encourages young students to solve problems by estimating angles and distances. They use an applet to give LOGO-like commands, e.g. forward (length), turn (right or left) to make a path that moves a turtle to a pond. Students can create a Path 1 and Path 2 and try to minimize the total path length. There is a newer applet (Turtle Pond, cataloged separately) that allows for adding or editing the commands and a choice of right angles only, or angles in multiples of 15 degrees. The lesson provides suggestions for implementation and discussion questions.


  • 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


Grade 2,Visualization,NSDL,Grade 4,Grade 3,Addition,Early Elementary,Spatial sense,Visual representation,Strategies,Number concepts,oai:nsdl.org:2200/20140728160534693T,Arithmetic,Analyze and persevere,Concept formation,Process skills,Number and operations,Upper Elementary,Mathematical language,Grade 5,Attend to precision,Critical thinking,Angle measure,Whole numbers,Vocational/Professional Development Education,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-027,Practice Standards,Length,Elementary School,Reason quantitatively,Estimation,Operations,Systems of measurement,Communication,Reasoning,Mathematics,Problem solving,Measurement,Education,Nonstandard,Representation



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