Find the Secret Number-Developing a Search Strategy
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OtherDescription:
This webpage contains a link to a downloadable Geometer's Sketchpad activity that familiarizes students with inequality signs (> and
Subjects:
- 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
Keywords:
Grade 2,Grade 3,Grade 1,Make use of structure,Inequalities,Grade 4,Teaching strategies,Early Elementary,Visual representation,Representation,Number concepts,Social Sciences,Arithmetic,NSDL,oai:nsdl.org:2200/20140728161126749T,Process skills,Number and operations,Upper Elementary,Algebra,Grade 5,Concept formation,Informal Education,Integers,Whole numbers,Middle School,Vocational/Professional Development Education,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-027,Comparison of numbers,Reason abstractly,Practice Standards,Grade 6,Elementary School,Reason quantitatively,Algebraic thinking,Deductive reasoning,Mathematics,Connections,Engineering,Problem solving,Education,ReasoningLanguage:
EnglishAccess Privileges:
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This webpage contains a link to a downloadable Geometer's Sketchpad activity that familiarizes students with inequality signs (> and <) and introduces the use of the variable x to represent an unknown value. Students are challenged to deduce a number by collecting and analyzing clues that narrow its range of possible values in the fewest guesses. The page also includes a three-minute instructional video and downloadable PDFs of teacher notes and student worksheets. This activity opens on Geometer's Sketchpad as well as on iOS with Sketchbook Explorer (cataloged separately).
