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→Concept # 2.Properties of quadrilaterals
# Arrange all four angles of quadrilateral one from each colour at one point.
# Arrange all four angles of quadrilateral one from each colour at one point.
# What you observe ?
# What you observe ?
# It forms a complete angle i.e 3600
# It forms a complete angle i.e 360 degrees.
# This shows that sum of all angles of quadrilateral is 360 degrees.
# This shows that sum of all angles of quadrilateral is 360 degrees.
*Process/ Developmental Questions
*Developmental Questions:
*Evaluation
# What is a quadrilateral ?
*Question Corner
# Which quadrilateral are you constructing ?
# How many angles does a quadrilateral have ?
# What is the sum of 4 angles of the quadrilateral according to your findings.
*Evaluation:
# what would be the sum of opposite angles of a quadrilateral ?
*Question Corner:
# What can you say about the angles in a regular quadrilateral ?
# Try proving this property in case of a convex quadrilaterals as well.
===Activity No # 2. "I have - Who has ?"===
===Activity No # 2. "I have - Who has ?"===