This lesson uses the context of a two-person game to develop the concepts of prime and composite numbers as well as strategic thinking. The game may be played on paper or with an online applet (cataloged separately). Students analyze the results of first moves to arrive at an effective game strategy. The included student worksheet (pdf) extends the range of numbers played and introduces students to abundant, deficient, and perfect numbers.
Keywords:Grade 3,Grade 6,NSDL,oai:nsdl.org:2200/20140728160814003T,Factors,Express regularity,Mathematics,Number concepts,Arithmetic,Analyze and persevere,Concept formation,Process skills,Number and operations,Grade 4,Upper Elementary,Mathematical language,Grade 5,Multiplication,Composition and decomposition of numbers,Patterns and sequences,Whole numbers,Middle School,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-027,Reason abstractly,Practice Standards,Reading in mathematics,Number theory,Life Science,Elementary School,Number patterns,Representation,Chemistry,Operations,Prime numbers,Communication,Connections,Vocational/Professional Development Education,Writing in mathematics,Education,Construct arguments,Reasoning