S1+Dionne,+Christina

=Stage 1 - Identify Desired Results= Geometric Measurements Grade 7 2. Students solve problems involving perimeter and area. ||
 * **Establish Goals (MLR):** **(G)** ||
 * Maine Learning Results: Mathematics- C. Geometry

//What understandings are desired?//
•solving problems involves finding areas of polygons and circles. •units are important when solving problems involving area and perimeter. ||
 * **//Students will understand that://** **(U)** ||
 * •solving problems involves finding the perimeters of any polygon or circle.

//What essential questions will be considered?//
•What parts of a polygon or circle will help solve a problem involving area and perimeter? •How can area and perimeter of irregular polygons or combined figures be found? ||
 * **Essential Questions:** **(Q)** ||
 * •Why are equations of parallelograms, regular polygons, and circles different?

//What key knowledge and skills will students acquire as a result of this unit?//
P=2(pi)r Triangle- A=(1/2)lw. Regular polygon- A=ap. Oval- A=(pi)ab •Terminology: perimeter, regular, irregular, area, length, width, radius, apothem, circumscribed, and inscribed. •Critical Details: a polygon can be broken into squares and triangles to find area and perimeter. || •prove combined polygons can be broken down into triangles or squares. •illustrate possible shapes for given area and perimeters. •solve the area for any polygon or circle or any combination. •argue that units must be the same when finding area or perimeter. •consider how to find perimeter of any irregular or regular shape. •be aware of the unit of measurement. ||
 * **//Students will know://** **(K)** || **//Students will be able to://** **(S)** ||
 * •Formulas: Parallelogram- A=lw, P=2l+2w. Circle- A=(pi)r²,


 * 2004 ASCD and Grant Wiggins and Jay McTighe.**