This 8-page monograph explains bansho, a research-informed instructional strategy for mathematical communication and collective problem-solving. Following a brief overview, the article outlines how bansho can be used to plan and implement an effective three-part problem-solving lesson. Bansho can be incorporated into collaborative planning sessions, in which teachers work with partners or in groups within communities of practice to learn about mathematics for teaching. The author provides a sample grade 2 lesson on the development of multiplication concepts and a list of references.
Keywords:Grade 2,Grade 3,Grade 1,Make use of structure,NSDL,Grade 4,Teaching strategies,Addition,Early Elementary,Kindergarten,Visual representation,Representation,Number concepts,Arithmetic,Analyze and persevere,Concept formation,Process skills,Number and operations,Upper Elementary,Mathematical language,Grade 5,Attend to precision,Properties of operations,Model with mathematics,Multiplication,Composition and decomposition of numbers,Vocational/Professional Development Education,Whole numbers,Problem solving,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-027,Instructional materials,Practice Standards,Life Science,Elementary School,Teacher content knowledge,Reason quantitatively,Chemistry,Operations,oai:nsdl.org:2200/20140728160506626T,Communication,Mathematics,Connections,Engineering,Critique reasoning,Education,Construct arguments