Changes

==Concept #3. Types of quadrilaterals==

==Concept #3. Types of quadrilaterals==

===Learning objectives===

===Learning objectives===

# Four sided closed figures are called quadrilaterals.

# Quadrilaterals are of different types.

# They are of different types.

# Grouping is made based on the four angle measures and/or sides.

# Grouping is made based on angle measures and/or sides.

# Each type is recognised with its characteristic properties.

# Each type is recognised with its characteristic properties.

# The types include parallelogram (square, rectangle, rhombus,) and non-parallelograms (trapezium and kite).  

# The types include regular, non-regular; convex, concave; parallelogram (square, rectangle, rhombus,) and non-parallelograms (trapezium and kite).  

===Notes for teachers===

===Notes for teachers===

# This activity can be done after teaching the students about different types of quadrilaterals and their properties.

# This activity can be done after teaching the students about different types of quadrilaterals and their properties.