Third Grade‎ > ‎

3.10, Perimeter and Area, Measurement and Geometry


SOL# 3.10

Blueprint Categories 

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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 Website

A-Z worksheets

Houghton Mifflin activity

IXL perimeter and area

Math playground activities

Online Game perimeter and area


 

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 

 

 
Determining Perimeter

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. 

 

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