ocean and man through my innovation

1. INNOVATIVE LESSON PLAN
NAME OF THE TEACHER : FLORA EUGIN
NAME OF THE SCHOOL : GOVT.VHSS PETTAH
UNIT : 4
TOPIC : THE OCEAN AND MAN
LEARNING OBJECTIVES
To help students understand the different movements in the sea water
and the reasons for these movements.
SPECIFIC OBJECTIVES
To help students understand the different types of tides, their reasons
and its importance in human life.
FACTS
 Tides are the periodic rise and fall of water level in the sea.
 The gravitational attraction exerted on the earth by the sun and
the moon and the centrifugal force created due to the rotation of
the earth are the main reasons for the occurrence of tides.
 There are mainly two types of tides-spring tides and neap tides.
CONCEPTS
Tides, spring tides, neap tides
PRE-REQUISITES
The students are aware that various movements occur in the sea water
and that they are waves, tides and ocean currents.

2. MATERIALS REQUIRED
Videos, blackboard, chalk, social science textbook
PROCESS SKILLS
Observation skill and reasoning skill.
CLASSROOM INTERACTION PROCEDURE RESPONSE
The teacher creates a rapport with the students.
Do you remember the movements of ocean water about which
we learned in the previous class? The teacher asks we have
learned that waves, types and ocean currents are the different
movements in the sea water. We have also discussed about
waves in detail. Today we are going to discuss about tides. Is the
level of the sea at all hours in a day the same? The teacher asks.
After hearing the student’s response, the teacher explains that
the sea level is not the same at all hours and that the rice and fall
of water level in the sea are called Tides. The teacher asks the
students to state some of the main reasons for the occurrence of
tides. Once the students response , the teacher explains that the
main reason for the occurrence of tides are
 The gravitational attraction exerted on the earth by the sun
and the moon
 Centrifugal force created due to the rotation of the earth.
The teacher then asks students, can anybody explain as to what is
meant by sidereal month and lunar month. After hearing the
student’s response the teacher tells, the moon takes 27-32 days
to go round the earth. This is known as sidereal month .But from
one new moon to the next ,it takes 291/2
days .This is called a
lunar month .Why are some days called a full moon day and new

3. moon day. Once the students responds the teacher explains new
moon and full moon by making students understand the position
of earth and moon in the above mentioned days.
Activity
The teacher randomly calls the numbers of three students and
asks them to come forward. The teacher then names the three
Earth, Moon and Sun. She asks students to stand in accordance to
the positions as drawn in the Black Board.
Earth Moon Sun: this is the position of the three in a
new moon day.
Moon Earth Sun: this is the position on the three in a full
moon day.
On full moon and new moon days the moon the earth and the
sun come almost in a line. So the moon and the sun exert their
combined gravitational pull on the earth. Hence the tides on
these days are exceptionally powerful .They are called spring
tides.
The teacher asks another set of 3 students to come out and
names them as earth moon and the sun .She then instructs them
to take positions as shown in the blackboard.
EARTH MOON SUN
MOON EARTH SUN
New Moon
Full Moon

4. When the sun and moon attract the earth the earth at 90 degree
angle the moon pulls the earth to one side the sun pulls the earth
to the other side, which results in very low tides. They are called
neap tides. The teacher concludes the class by explaining
students as to how tides affect human life and also shows a video
about ocean tides.
SUNEARTH
MOON
EARTH
MOON
SUN

5. CONSOLIDATION
 Tides are the periodic rise and fall of water level in the sea.
 The gravitational attraction exerted on the earth by the sun
and the moon and the centrifugal force exerted due to the
rotation of the earth are the main reasons for the
occurrence of tides.
 There are mainly two types of tides spring tides and neap
tides.
REVIEW QUESTIONS
1. What are tides? what are the different types of tides?
2. What are the reasons or the occurrence of tides?