Lesson Plan Maths

Lesson Plan Maths

Subject:         Math

Class:             V

Chapter:        Polygons

Topic:Area and Perimeter

Activity:         Area and Perimeter Builder

Objectives:    The student should be able to:

• explore what happens to the measurement of a two-dimensional shape such as its perimeter and area when the shape is changed
• build and draw geometric shapes and comp[are its perimeter and area.
• identifyreal-life situations in which area and perimeter are usefully applied.

Resources required: computer (1 computer for assigned group students), Internet connection with access to PhET simulation, a photocopy paper.

Information input:

The area is the amount of two-dimensional space taken up by the object. It is measured in square units. A perimeter is the total boundary of the two-dimensional shape. If you want to provide fencing around the entire field you need its perimeter. Suppose you want to lay a pathway inside the field to keep a watch on your field you need its perimeter. The units of the perimeter are, cm, m, etc.

Instructions: (20 minutes)

1.      Read the chapter and understand the content

2.      Use the google search engine and type in “PhET Simulations” in the search text box or use the link https://phet.colorado.edu/en/simulation/area-builder

3.      Click on “All Sims-PhET Simulations”

4.      Select “Area Builder”

5.      Click the “play” button/download button and wait for few seconds (time to download application)

6.      Click on the downloaded file on the left bottom corner

7.      Click on the “Explore”  button to run the application (need to wait for few seconds to load the application)

8.      Click on the minus   button on the top center of the simulation board

9.      Drag 1 tile in the simulation board and estimate its area and perimeter.

10.  Record your estimation in worksheet 1.1

11.  Then construct a square using 4 tiles in the simulation board.

12.  Estimate its area and perimeter.

13.  Now take 2 tiles and repeat step 11.

14.  Repeat step 11 with 3 tiles

15.  Repeat step 11 with 4 tiles.

16.  Click on the plus    button on the top center of the simulation board

17.  Now turn on the button on the left corner of the simulation board.

18.  Repeat step 8 and compare your estimation with the reading given in the simulation board.

19.  Go back to table 1.1. Record the readings given in the simulation board.

Follow up activity (15 minutes)

Discuss in groups why perimeter and area are not the same.

1.      Construct a triangle in the simulation board using ten tiles.

2.      Measure its area and perimeter.

Assessment procedures

Go through the worksheet 1.1

Use the following checklist during the lesson

Sl. No	Group name	Write the value of the shapes in the space given below			Real value
			Estimation of area	Estimation of perimeter
1		Drag 1 tile
2		Drag 2 tiles
3		Drag 3 tiles
4		Drag 4 tiles

Lesson Closure

The lesson will be closed by asking some questions to recapitulate the session taught.

What are the area and perimeter?

Expected answer:The area is the amount of two-dimensional space taken up by the object. It is measured in square units.

A perimeter is the total boundary of the two-dimensional shape. If you want to provide fencing around the entire field you need its perimeter

Will a shape has equal area and perimeter?

Expected answer: No, it will not have equal area and perimeter