This interactive Flash applet helps students develop number skills by having them drag clusters of numbers to complete a rectangular grid. Levels vary in content and difficulty, and some feature missing numbers. Skills include counting from 1 to 20, counting from 1 to 100 in several different orientations, and multiplication facts 1-25 and 1-100. A Help screen offers instructions.
Keywords:Grade 2,Grade 3,Grade 1,Make use of structure,NSDL,Grade 4,Factors,Addition,Early Elementary,Spatial sense,Kindergarten,Visual representation,Representation,Number concepts,Social Sciences,Arithmetic,hundred chart,Number and operations,Upper Elementary,Grade 5,Multiplication,multiplication table,Informal Education,Whole numbers,oai:nsdl.org:2200/20140728160753272T,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-027,Comparison of numbers,Practice Standards,Elementary School,Number patterns,Reason quantitatively,Patterns and sequences,Operations,Mental calculation,Education,Number sense,Mathematics,Engineering,Problem solving,Process skills,Counting,Reasoning