`"An Introduction to Area and Perimeter"Edwina R. Justice              Gunsaulus Scholastic Academy                               4420 South Sacramento Ave.                               Chicago IL   60632                               (312) 535-7215Objectives (Staff):     Demonstrate a phenomenological approach to teaching mathematics     Inspire others to use the approachObjectives (Grades 4-7):     Form rectangles by using tiles     Measure area and perimeter by counting     Measure and record area and perimeter     Describe dimensions of rectangles     Discover and apply rules for measuring area and perimeter     Measure rectangles using transparent grids and determine area and perimeter     Observe patterns formed by rectangles with constant area or perimeterMaterials Needed:     inch grids            centimeter grids              scissors     worksheets with tables for recording area and perimeterRecommended Strategy:     Cut 24 thirty-six inch tiles     Use tiles to make rectangles     Count tables (area) and number of people who can sit at the table      (perimeter)     Show all rectangles on grid with area equal to 12 square cm.     Discuss dimensions     Introduce appropriate mathematical vocabulary     Order rectangles from largest to smallest perimeter     Compare shapes of rectangles with area equal to 12 square cm.     Record dimensions, area, and perimeter     Apply rules for finding area and perimeter     Measure rectangles of various sizes by using transparent inch grids     Record dimensions, area and perimeter     Show all rectangles with area equal to 24 square cm.     Record dimensions, area, and perimeter     Demonstrate pattern formed by rectangles with constant area     Show all rectangles with perimeter equal to 24 cm.     Record dimensions, area, and perimeter     Demonstrate pattern formed by rectangles with constant perimeter     Performance Assessment:     Draw representations of two gardens with the same area, but with different      dimensions.  Fencing materials must be purchased.  Which garden will cost      less money?  Explain your answer.`