This activity provides an opportunity for students to work on spatial visualization and number sense together. Learners are presented with a hundred grid and told there is another printed on the reverse side. They must work out the unseen numbers for several positions on the grid. Ideas for implementation, extension and support are included along with a printable sheet of grids.
Keywords:Grade 2,Visualization,Grade 1,Make use of structure,NSDL,Early Elementary,Spatial sense,Express regularity,Strategies,Number concepts,Arithmetic,Analyze and persevere,Concept formation,Connections,Number and operations,Visual representation,Algebra,oai:nsdl.org:2200/20140728161031860T,Life Science,Patterns and sequences,Transformations,Informal Education,Whole numbers,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-027,Geometry,Comparison of numbers,Reason abstractly,Practice Standards,Elementary School,Number patterns,Reason quantitatively,Algebraic thinking,Chemistry,Education,Symmetry,Number sense,Mathematical language,Mathematics,Plane geometry,Engineering,Problem solving,Communication,Process skills,Counting,Representation