In this activity students interact with rotations of a two-dimensional image. It is intended to be a bridge between the physical turning of objects and the more abstract rotations of a 2-D image. Students are asked how many quarter turns it will take to achieve a resultant image. There is an interactive Java applet available for the manipulations. The Teachers' Notes page includes suggestions for implementation, discussion questions, ideas for extension, and printable sheets.
Keywords:Grade 2,Visualization,oai:nsdl.org:2200/20140728160556658T,Make use of structure,NSDL,Grade 3,Early Elementary,Grade 1,Visual representation,Mathematics,Number concepts,Arithmetic,Analyze and persevere,Fractions,Process skills,Number and operations,Upper Elementary,Mathematical language,Rational numbers,Patterns and sequences,Transformations,Informal Education,Concept formation,Whole numbers,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-027,Geometry,Reason abstractly,Practice Standards,Geometric patterns,Elementary School,Discrete mathematics,Representation,Education,Communication,Plane geometry,Engineering,Problem solving,Recursion and iteration,Counting