1,491
edits
Changes
From Karnataka Open Educational Resources
Exploring area and perimeter (view source)
Revision as of 12:03, 2 February 2023
, 12:03, 2 February 2023added Category:TIIE Mathematics using HotCat
=== Activity 1: Area and Perimeter concepts ===
=== Activity 1: Area and Perimeter concepts ===
=== Materials: ===
==== Materials: ====
Rectangular dot sheets, stationery
Rectangular dot sheets, stationery
=== Objective: ===
==== Objective: ====
To understand the relationship between area and perimeter of 2D shapes
To understand the relationship between area and perimeter of 2D shapes
=== Process: ===
==== Process: ====
# Recall area and perimeter concepts: ask students to explain the meaning of area and perimeter in their own words
# Recall area and perimeter concepts: ask students to explain the meaning of area and perimeter in their own words
#*[[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
# 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
#* [[File:Area perimeter shaded region.png|none|thumb|576x576px]]
# Ask students to calculate the area of the shaded region (8 sq. cm). Then, ask them to draw a different shape with the same area
# Next, ask them to compare the perimeter of the shape displayed and the one they drew
# Call out a few students whose shapes have perimeter lesser, greater and same as the one displayed and share it with the class
# If there are no examples for any of the categories, challenge them to find suitable shapes
=== Activity 2: Puzzle ===
==== Materials: ====
Print-outs of the puzzle [or] projector to display and rectangular dot sheets
==== Objectives: ====
==== Process: ====
# Handover print outs of the 'Share the land' puzzle([https://ncert.nic.in/textbook.php?eemh1=11-14 NCERT Class 5 Mathematics Textbook]) to students individually or in pairs and ask them to solve it.
# Discuss different solutions/strategies that students come up with
=== Activity 3: Game ===
==== Objectives: ====
==== Materials: ====
* dot sheets/graph sheets,
* crayons of different colours
* dice (2)
==== Process: ====
# Students are paired/ divided into groups and given the listed materials
# Each player rolls the dice and draws a rectangle of equivalent size. Eg - if they roll 2 and 4, they draw a 2x4 rectangle.
# The player who covers maximum area first, wins.
# Ask students to calculate the perimeter of each rectangle they draw and of their final shape as well.
# Reference: Conquer the area (activity 2 in https://iheartteachingelementary.com/area-and-perimeter-games/)
=== Discussion after both activities: ===
* Does perimeter always increase if area increases?
* Does area always increase if perimeter increases? (If they say yes,give the initial grid examples as reference and ask them to check if it is holding true)
[[Category:TIIE Events]]
[[Category:TIIE Mathematics]]
