This activity is designed to engage the student in an exploration of the perimeter of shapes formed by adjacent squares on a grid. After the student selects an area, the Java applet generates a closed figure with that area. The student enters the perimeter of the figure, and the answer is checked automatically. The applet limits figures to rectangles and generates two column comparisons of areas and perimeters for multiple figures. From the activity page, What, How, and Why buttons open pages explaining the activity's purpose, function, and how the mathematics fits into the curriculum. Supplemental resources include lesson plans, background information about units and unit conversion, handouts, and exploration questions for analyzing the different shapes that are possible for a constant area. Copyright 2005 Eisenhower National Clearinghouse


  • Mathematics > General

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Perimeter,Grade 3,Middle School,NSDL,Upper Elementary,Area,Grade 4,Grade 5,oai:nsdl.org:2200/20120114184824227T,NSDL_SetSpec_1007936,Elementary School,Grade 6,Measurement,Informal Education,Mathematics,Grade 8,Grade 7



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