In this video- and web-based course K-8 teachers examine the three main categories in the Number and Operations strand of Principles and Standards of School Mathematics (NCTM): understanding numbers, representations, relationships, and number systems; the meanings of operations and relationships among those operations; and reasonable estimation and fluent computation. The course covers the real number system, place value, the behavior of zero and infinity, meanings and models of basic operations, percentages, modeling operations with fractions, and basic number theory topics (factors, multiples, divisibility tests). The course consists of 10 approximately 2.5 hour sessions, each with video programming, problem-solving activities, and interactive activities and demonstrations on the web. Participants can work through the sessions on their own, in a study group, or as part of a facilitated, face-to-face, graduate-level course for credit.


  • 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,Grade 3,Grade 1,Teacher content knowledge,NSDL,Grade 4,Factors,Percent,Early Elementary,Kindergarten,Mathematics,Number concepts,Arithmetic,Fractions,Process skills,Number and operations,Upper Elementary,Rational numbers,Place value,Grade 5,Concept formation,Ratio and proportion,Integers,Whole numbers,Middle School,Vocational/Professional Development Education,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-027,Grade 6,oai:nsdl.org:2200/20140728160833703T,Elementary School,Representation,Real numbers,Decimals,Operations,Prime numbers,Number sense,Connections,Problem solving,Communication,Education



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