Difference between revisions of "Exploring area and perimeter"
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# Repeat for 4 sq.cm | # Repeat for 4 sq.cm | ||
# Ask students to observe these shapes and find out what is the area and perimeter of each shape. | # Ask students to observe these shapes and find out what is the area and perimeter of each shape. | ||
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[[File:Area perimeter dot sheet figures.png|thumb|694x694px|alt=|none]] | [[File:Area perimeter dot sheet figures.png|thumb|694x694px|alt=|none]] | ||
| − | + | # Next, draw this shape on the board/project this image and ask students what is the area and perimeter of this shape. If anyone is unclear, explain how the area and the perimeter can be found out | |
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Revision as of 18:23, 27 December 2022
Activity 1: Area and Perimeter concepts
Materials:
Rectangular dot sheets, stationery
Objective:
To understand the relationship between area and perimeter of 2D shapes
Process:
- Recall area and perimeter concepts: ask students to explain the meaning of area and perimeter in their own words
- Establish differences between area and perimeter:
- Perimeter is a one dimensional quantity and area is a two dimensional quantity
- Area is expressed in sq.units and perimeter in units
- Area defines the space occupied by a shape, perimeter is the length of its boundary
- Hand over dot sheets to individual students or pairs of students and inform that the distance between any two horizontally or vertically adjacent dots in the dot sheet is 1 cm
- Ask students to draw and shade a square of area 1 sq. cm and ask them to find out the perimeter of the same
- Repeat for 4 sq.cm
- Ask students to observe these shapes and find out what is the area and perimeter of each shape.
- Next, draw this shape on the board/project this image and ask students what is the area and perimeter of this shape. If anyone is unclear, explain how the area and the perimeter can be found out