Perimeter and Area
Perimeter and Area
NCSC Sample Instructional Unit -
Elementary Measurement Lesson 4
1
Perimeter – “Distance Around”
2 inches
2 inches
2 inches
2 inches
Perimeter: 2 + 2 + 2 + 2 = 8 inches
square = polygon with four equal sides and four 90º angles
2 x 4 sides = 8 inches
NCSC Sample Instructional Unit -
Elementary Measurement Lesson 4
2
Perimeter – “Distance Around”
square = polygon with four equal sides and four 90º angles
5 in
Perimeter:
5 + 5 + 5 + 5 = 20 in
OR
5 x 4 sides = 20 in
NCSC Sample Instructional Unit -
Elementary Measurement Lesson 4
3
Perimeter – “Distance Around”
rectangle = polygon with four 90º angles and opposite sides of equal lengths
6 inches
6 inches
2 inches
2 inches
Perimeter: 2 + 6 + 2 + 6 = 16 inches
2 x 2 = 4 2 x 6 = 12 4 + 12 = 16 inches
NCSC Sample Instructional Unit -
Elementary Measurement Lesson 4
4
Perimeter – “Distance Around”
rectangle = polygon with four 90º angles and opposite sides of equal lengths
7 inches
1 inch
Perimeter:
1 x 2 = 2 7 x 2 = 14 2 + 14 = 16 inches
NCSC Sample Instructional Unit -
Elementary Measurement Lesson 4
5
Area – “Space Inside”
1 in
1 in
1 in
1 in
1 in
1 in
1 in
1 in
1 in
1 in
1 in
1 in
1 in
1 in
1 in
1 in
4 inches
Area = Length x Width 4 x 4 = 16 in
2
4 inches
16 square inches
NCSC Sample Instructional Unit -
Elementary Measurement Lesson 4
6
Area – “Space Inside”
1 in
1 in
1 in
1 in
1 in
1 in
6 square inches
3 inches
2 inches
Area = Length x Width 3 x 2 = 6 in
2
NCSC Sample Instructional Unit -
Elementary Measurement Lesson 4
7
Summary
•
Perimeter – Add up all of the sides
–
Don’t forget to include the units with your answer.
•
Area – Multiply the length times the width
–
Answer needs to be in square units (such as in
2
)
NCSC Sample Instructional Unit -
Elementary Measurement Lesson 4
8
In this instructional unit, learn how to calculate the perimeter and area of squares and rectangles. Understand the concepts through visual aids and step-by-step examples. Explore the perimeter by adding all sides and calculating the space inside shapes. Practice measurements using real-life scenarios to enhance learning.
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Presentation Transcript
Perimeter and Area NCSC Sample Instructional Unit - Elementary Measurement Lesson 4 1
Perimeter Distance Around square = polygon with four equal sides and four 90 angles 2 inches 2 inches 2 inches 2 inches Perimeter: 2 + 2 + 2 + 2 = 8 inches 2 x 4 sides = 8 inches Elementary Measurement Lesson 4 NCSC Sample Instructional Unit - 2
Perimeter Distance Around square = polygon with four equal sides and four 90 angles Perimeter: 5 + 5 + 5 + 5 = 20 in OR 5 x 4 sides = 20 in 5 in NCSC Sample Instructional Unit - Elementary Measurement Lesson 4 3
Perimeter Distance Around rectangle = polygon with four 90 angles and opposite sides of equal lengths 6 inches 2 inches 2 inches 6 inches Perimeter: 2 + 6 + 2 + 6 = 16 inches 2 x 2 = 4 2 x 6 = 12 4 + 12 = 16 inches NCSC Sample Instructional Unit - Elementary Measurement Lesson 4 4
Perimeter Distance Around rectangle = polygon with four 90 angles and opposite sides of equal lengths 1 inch 7 inches Perimeter: 1 x 2 = 2 7 x 2 = 14 2 + 14 = 16 inches NCSC Sample Instructional Unit - Elementary Measurement Lesson 4 5
Area Space Inside 4 inches 1 in 1 in 1 in 1 in 1 in 1 in 1 in 1 in 16 square inches 4 inches 1 in 1 in 1 in 1 in 1 in 1 in 1 in 1 in Area = Length x Width 4 x 4 = 16 in2 NCSC Sample Instructional Unit - Elementary Measurement Lesson 4 6
Area Space Inside 2 inches 1 in 1 in 1 in 1 in 6 square inches 3 inches 1 in 1 in Area = Length x Width 3 x 2 = 6 in2 NCSC Sample Instructional Unit - Elementary Measurement Lesson 4 7
Summary Perimeter Add up all of the sides Don t forget to include the units with your answer. Area Multiply the length times the width Answer needs to be in square units (such as in2) NCSC Sample Instructional Unit - Elementary Measurement Lesson 4 8
