### 3.10, Perimeter and Area, Measurement and Geometry

 SOL# 3.10 Blueprint Categories % The Student will: a)measure the distance around a polygon in order to determine perimeter; and b)count the number of square units needed to cover a given surface in order to determine area. Number and Number Sense 25 Computation and Estimation 25 Measurement and Geometry 28 Probability, Statistics, Patterns, Functions & Algebra 22

 Prior Knowledge Vocabulary Assessments Related SOL K.10 Compare two objects/events/with nonstandard units-length/height/weight   1.10 a.) compare volumes of two containers b.) weight/mass of two objects Polygon: a closed plane figure composed of line segments that do not cross. Perimeter: a measure of the distance around a polygon and is found by adding the measures of the sides.   Area: the number of square units needed to cover a surface.

 Resources Books Technology Lessons Trade Books Text Books Study Guides/Lessons VA DOE Resources Spaghetti and Meatballs for all! Silver Burdett Ginn p. 380-384 Workbook p. 117-119 Rockingham County WebsiteA-Z worksheets Houghton Mifflin activity IXL perimeter and area Math playground activities Perimeter and Area notes   Perimeter worksheet 1 easy   Perimeter worksheet 2 harder   Perimeter shapes-missing side     Measure and find the perimeter   Area- counting square units Area of rectangle Area worksheet 1 Area worksheet 2 Measure and find area Area and perimeter worksheet 1 Area and perimeter worksheet 2 Area and perimeter counting squares Measuring Surface Area

 Other Resources Investigations: ·Unit 4- Quick Images 2D ·Unit 4- Tricky Triangles

 Curriculum Framework 2009 Understanding the Standard Essential Understandings Essential Knowledge and Skills 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 two-dimensional unit needed to cover a surface.The two-dimensional 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 hands-on 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.