This lesson plan submission outlines different types of quadrilaterals including their key properties. It defines a quadrilateral as a polygon with four sides and vertices. It then describes the properties of parallelograms, rectangles, rhombi, squares, trapezoids, and isosceles trapezoids such as having opposite sides that are parallel and equal, diagonals that bisect each other, angles that sum to 180 degrees, and sides of equal length. The purpose is to teach students about different quadrilaterals and how to identify their distinguishing features.

1. INNOVATIVE LESSON PLAN
Submitted by,
Greeshma George
Mount Tabor Training College
Pathanapuram

7. QUADRILATERALS

8. A quadrilateral is a
polygon with four sides
and four vertices

9. •Opposite sides equal
•Opposite sides parallel
•Diagonals bisect each other
•Opposite angles equal
•Sum of angles on the same side 𝟏𝟖𝟎 𝟎
PARALLELOGRAM

10. RECTANGLE
Opposite sides equal
Opposite sides parallel
All angles right
Diagonals equal
Diagonals bisect each other

11. RHOMBUS
Opposite sides are parallel
Diagonals perpendicular bisectors of
each other
Opposite angles equal
Sum of angles on same side 𝟏𝟖𝟎 𝟎
All sides equal

12. SQUARE
All sides equal
Opposite sides are parallel
All angles right
Diagonals equal
Diagonals perpendicular bisectors of
each other

13. TRAPEZIUM
Only one pair of opposite sides
parallel
Sum of angles on each of non-
parallel sides 𝟏𝟖𝟎 𝟎

14. ISOSCELES TRAPEZIUM
Only one pair of opposite sides parallel
Non-parallel sides equal
Diagonals equal
Angles on each of parallel sides equal
Sum of angles on each of non-parallel
sides 𝟏𝟖𝟎 𝟎