INNOVATIVE
LESSON TEMPLATE
Name
of the teacher trainee: Sandra Faria
Standard: VIII C
Name
of the school: St. John’s H.S, Eravipuram
Strength:
Subject:
Mathematics
Duration: 45’
Unit:
Polygons Date:
17/8/17
Curricular
Statement: The students will be able to
understand the concept of polygons and its exterior angles
through group activities, discussion and analysis.
Content
Analysis
Term: Polygons
Facts: 1) A two dimensional closed
figure with atleast three sides.
2) The sum of exterior
angles of any polygon is 360º.
Concept: Concept of polygons and its
exterior angles.
Process: Activities to understand the
concept of polygons and its exterior angles.
Learning outcomes: The students will
be able to
·
recall related
knowledge about polygons.
·
describe the
peculiarities of polygons.
·
interpret the
concept about polygons and its exterior angles.
·
apply the above
concept in a new or unfamiliar situation.
·
judge the
appropriateness of the above concept in a given problem.
·
plan new ideas
based on the concept.
·
explain the
concept of polygons and its exterior angles.
·
develop positive
attitude towards Mathematics.
·
accept the beauty
of Mathematics and its concepts.
Pre-requisites:
Knowledge about polygons, angles around a point and sum of interior angles of a
polygon.
Learning
aids: Innovative work model, match sticks, string, protractor and blackboard.
CLASSROOM
INTERACTION PROCEDURE
|
PUPIL’S
RESPONSE
|
INTRODUCTION
The teacher starts the class with the following riddle:
Iam a two dimensional shape.
Iam a closed figure.
I have more than two sides
I have equal number of edges and
vertices.
I have no adjacent sides as
collinear.
Can you tell who I am?
Yes. Can you give me examples of
polygons?
PRESENTATION
ACTIVITY
The teacher shows the following
innovative work model and explains how it was made and its purpose.
The teacher now asks each student from a
bench to demonstrate any polygon using a string.
So you know all about the shapes of a
polygon, isn’t it?
Now let us learn about exterior angles of a
polygon.
APPLICATION
The teacher distributes matchsticks and ask
the students to make a triangle with it.
Now can you extend all its sides using the
given matchsticks.
Can you measure all its outer or exterior
angles slowly without shaking the arranged matchsticks?
What is the sum of exterior angles of a
triangle?
The teacher now asks the students to find
the sum of exterior angle of a quadrilateral.
What is the sum of exterior angles of a
quadrilateral?
Yes. In the same way find out for pentagon
also.
What is the sum of exterior angles of a
pentagon?
REVIEW
What did we learn today?
So what is a polygon?
What is the sum of exterior angles of any
polygon?
|
Polygons
Triangle,
Quadrilaterals,
Pentagon,
Hexagon,
Heptagon,
Octagon,
Nonagon,
Decagon, etc.
Triangle
Quadrilateral
Pentagon
Hexagon
Yes
Yes
360 º
It is also 360 º
It is also 360 º
Polygons and its exterior angles.
A polygon is a closed 2- dimensional figure
with atleast three sides.
360 º
|
FOLLOW UP ACTIVITY
·
Draw a picture of
your choice using only geometrical shapes.
______________________________________________
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