 A polygon is a closed
plane figure composed of at least three line segments that do not
cross.None of the sides are curved.
·
Perimeter
is a measure of the distance around a polygon and is found by adding the
measures of the sides.
·
Area
is the number of iterations of a twodimensional unit needed to cover a
surface.The twodimensional unit is usually a square, but it could also
be another shape such as a rectangle or an equilateral triangle.
 Opportunities to explore
the concepts of perimeter and area should involve handson
experiences (e.g., placing tiles (units) around a polygon and
counting the number of tiles to determine its perimeter and filling
or covering a polygon with cubes (square units) and counting the
cubes to determine its area).

All students should
·
Understand
the meaning of a polygon as a closed figure with at least three
sides.None of the sides are curved and there are no intersecting lines.
·
Understand
that perimeter is a measure of the distance around a polygon.
·
Understand
how to determine the perimeter by counting the number of units around a
polygon.
·
Understand
that area is a measure of square units needed to cover a surface.
·
Understand
how to determine the area by counting the number of square units.

The student will use problem solving, mathematical
communication, mathematical reasoning, connections, and representations
to
·Measure
each side of a variety of polygons and add the measures of the sides to
determine the perimeter of each polygon.
·Determine
the area of a given surface by estimating and then counting the number of
square units needed to cover the surface.
