This problem helps learners become more familiar with odd and even numbers and addition facts within five. By challenging them to justify their findings, it also develops reasoning and communication skills. The problem displays 9 dominoes and asks the student to sort them according to parity, and then into pairs totaling 5 pips. It poses questions that stimulate thinking about basic number concepts. The Teachers' Notes page offers suggestions for implementation, discussion questions, ideas for extension and support, and a link to an interactive Dominoes Environment (cataloged separately).


  • Mathematics > General
  • Education > General

Education Levels:

  • Grade 1
  • Grade 2
  • Grade 3
  • Grade 4
  • Grade 5
  • Grade 6
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Grade 2,Grade 1,NSDL,Addition,Early Elementary,Kindergarten,Visual representation,Representation,Number concepts,Social Sciences,Arithmetic,Analyze and persevere,Concept formation,Process skills,Number and operations,Mathematical language,oai:nsdl.org:2200/20140728160647267T,Critical thinking,Life Science,Composition and decomposition of numbers,Informal Education,Whole numbers,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-027,Comparison of numbers,Practice Standards,Elementary School,Reason quantitatively,Chemistry,Operations,Parity,Mental calculation,Education,Communication,Mathematics,Number sense,Counting,Construct arguments,Reasoning



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