This packet of information for teachers is designed to be used with the Dad's Cookies Problem of the Week from the Math Forum collection for grades 3 to 5. The sample problem provides an exemplar of the type of problem teachers can use to promote students' mathematical thinking and engage their interest. The key concepts addressed in this problem are fractions describing parts of a whole and addition. The packet contains the sample problem, alignment to the Common Core State Standards, an answer check, possible solutions, teaching suggestions, sample student responses, a print-ready copy of the problem, and a problem-specific scoring rubric.


  • 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


Assessment of students,Make use of structure,NSDL,Grade 4,Teaching strategies,Addition,Express regularity,Strategies,Number concepts,Arithmetic,Analyze and persevere,Fractions,Process skills,Number and operations,Upper Elementary,Algebra,Word problems,Critical thinking,Grade 5,Model with mathematics,Subtraction,Vocational/Professional Development Education,Whole numbers,Problem solving,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-027,Reason abstractly,Practice Standards,Elementary School,Reason quantitatively,Algebraic thinking,Operations,Deductive reasoning,Number sense,Mathematical language,Mathematics,Engineering,Grade 3,Critique reasoning,Communication,Writing in mathematics,oai:nsdl.org:2200/20140728160744137T,Education,Construct arguments,Reasoning,Representation



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