INNOVATIVE LESSON
TEMPLATE
Name of the teacher: Praveena P M Name of the school: NNS.B.H.S
Subject: Mathematics class :9 d
Unit : circles Strength: 36
Topic: Arcs & Complementary Arcs Date:
CURRICULAR STATEMENTS
Pupils are made aware of the concept
of arc and complementary arcs through discussion, explanation &
observation.
CONTENT ANALYSIS
Facts:
arcs and complementary arcs forms a complete circle.
Concept:
Arcs, complementary arcs
LEARNING OUTCOMES
The pupil will be able to
· Recall the
related information about circles.
·
Describe the
peculiarities of circle.
·
Interpret the
concept of arcs and complementary arcs.
·
Use the above
concept in another familiar situation.
·
Judge the
appropriateness of the above concept in a given problem
·
plan new ideas
based on the concept.
·
Perform
arithmetic skill.
·
Accept the beauty
of Mathematical principles
PRE
REQUISITES
Circles
, angles, directions.
TEACHING
LEARNING RESOURCES
Common
class room Aids
Class room interaction procedure
Introduction
Teacher ask “do you like to wear
bangles?”
Then what is the shape of the
bagels?
Very Good!!!!!
Then “What do you know about
circles?”
Very Good!!!
“What is the relation between radius
and diameter?”
Very Good!!!!
“Today we are dealing with a new
feature of a circle. Let’s see what is it?”
Presentation
Let’s play a game. Are you all
familiar with the game passing the message?
Teacher calls 10 students and ask
them to form a circle and teacher select a student as a centre and ask him to
stand at the centre.
|
Expected pupil responses
Students answered “yes”.
Students responded circles
Students replied circles has no end
points. It has a radius and diameter.
Students answered diameter=2∗radius
Students answered yes.
Students answered yes.
Students do like that.
|
||||
Do
you know the rule of the game?
I
will explain the way how to play the game.
Teacher
ask the students to join the hands to form a circle and do not leave the
hands. Leader stands in the middle.
One student in the circle should initiate
the game by pressing the hand of the other
without the knowledge of the leader and pass the message.
This will
continues still the leader say “stop”.
Now the person standing in the middle
should identify the persons who started and ended.
If the leader guess
correctly the persons will be out from the game.
Teacher
ask to start the game.
When
the first section completes teacher ask the leader to identify the persons
who starts and ended.
|
Students answered yes.
Students play the game as teacher
told
Leader answered correctly.
|
||||
Teacher
said Very Good!!!
Teacher
ask the leader “Can you tell the
direction in which the message is moved”.
Teacher
asks “Is there is any alternative path….?”
Teacher
explains there are two paths with same end points .Is isn’t it?
Now
we can say it as two parts of the circles. Arc and complementary arc. It is a
bow like structure with same end points.
Teacher
draw a circle on the black board.
Teacher
ask to identify the arc & complementary arc?
Teacher
appreciates and teacher explains that arc & complementary arc makes a
complete circle.
|
Leader
answered correctly
Students
answered “yes”.
Students
answered “yes”.
Student
answered AB is arc and shaded region is the complementary arc.
|
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Review and application
· Draw a circle and
mark arc and complementary arc
Follow up activity
· Draw a circles with radius 4 cm, 2 cm and mark arc
and complementary arc on it.