The Pulse of Life

1. INNOVATIVE LESSON PLAN
Name of the teacher trainee : Najeena.P.M Name of the school : GGHSS, Cotton hill
Name of the supervising teacher: Smt. Manju.M.K Standard and division : IX-C
Subject : Biology Date : 3/9/2015
Unit : Circulatory Pathways Period : 1
Lesson Unit : The Pulse of Life Strength : 39/43
Develops different dimensions of knowledge, attitude and process skills on the pulse of life through lecture method, multimedia
approach and evaluated by oral questioning presenting the report of group discussion and checking science diary.
CONTENT ANALYSIS
Scientific terms Heart beat, sino-atrial node, systole, diastole, lub, dub, systolic pressure, diastolic pressure,
blood pressure, sphygmomanometer.
Facts The veins bringing blood from various organs of the body open into the atria
Two atria are filled with blood, they contract simultaneously
CURRICULAR STATEMENT

2. The cuspid valves open and blood fills in the ventricles
When the ventricles contract and the semi lunar valves at the beginning of the arteries open
And blood flows into the arteries
At the same time cuspid valves close and the atria return to their original state
Function of cuspid valves are prevent the backward flow of blood
Blood reaches the arteries the ventricles return to their original state
The contraction of the heart chamber is called systole and the state of rest is called diastole
SA node initiate and control the heart beat
SA node is the pacemaker of heart
Lub and dub are heart sounds
The lub is produced by the contraction of the ventricles and the tight closure of tricuspid and
bicuspid valves
The dub is produced by closure of semi lunar valves and the ventricular relaxation
The pressure exerted by the blood on the walls of blood vessel is blood pressure
The pressure is maximum during ventricular ejection and is called systolic pressure
During diastole blood enters the heart and the pressure of the walls of the arteries reduced.
This lowered pressure is diastolic pressure
 Blood pressure is measured by an instrument sphygmomanometer

3. Concepts Heart beat
Blood pressure
LEARNING OUTCOMES
Cognitive domain Enable the pupil to develop
1. Remembering ▪identifying the difference between systole and diastole
▪retrieving the scientific terms, facts, and concepts mentioned in the content analysis
2.Understanding ▪comparing the systolic and diastolic pressure
▪Explaining the working of heart
3.Applying ▪executing the acquired knowledge by asking questions like ‘why SA node is called pacemaker
of the heart?’
4.Analyzing ▪differentiating between systolic and diastolic pressure
▪outlining the working of heart
5.Evaluating ▪checking the pulse of wrist
▪judging the necessity of valves in the heart
6. Creating ▪generating mental idea about creating an e-content of working of heart
▪Producing the e-content

4. Affective domain Enable the pupil to develop scientific interest to know about the working of heart, positive
attitude towards functioning of the heart
Psychomotor domain Enable the pupil to develop different process skills like
▪observing the video showing the working of heart
▪hecking the pulse of wrist
Knowledge about the structure of heart
Audio Visual aid: video showing the working of heart
Visual aid: Picture of ECG
IX standard biology text book, SCERT
XII Zoology text book, NCERT
Human Physiology-Varma and Agarwall
ENTRY LEVEL KNOWLEDGE
TEACHING LEARNING
MATERIALS
REFERNCES

5. TEACHING LEARNING PROCEDURE PUPIL RESPONSES
Teacher asked students that ‘Have you checked your pulse on wrist?’ Yes
What does it indicates? It indicates he heart beat
Teacher shows the ECG
Have you seen this earlier? Yes/No
What does it indicates show heart beat
INTRODUCTION

6. Good. ECG or Electro Cardiograph represents the pulse of life
PRESENTATION
ACTIVITY 1
Teacher tells the students that the function of heart is the result of an electrical
Activity that originate within the heart tissue and shows a picture of heart
Pupil observe the picture
CONSOLIDATION
The heart has an internal impulse conducting system that generate and

7. conducts rhythmic electrical signals that result in heart beat. The sinoatrial node
a small group of modified cardiac muscle fibers located in the right atrium near
the opening of the superior venacava acts as the pacemaker that initiates heart
beat and determines the heart rate.
ACTIVITY 2
Teacher tells the students that the electrical activity of the heat produces a
cycle of contraction and relaxation.
Shows a video of working of heart Pupil watching the video
working of heart.mp4
CONSOLIDATION
The veins bringing blood from various organs of the body open into the atria.
When the two atria are filled with blood, they contract simultaneously.
The cuspid valve open and blood fills in the ventricles. Subsequently the
ventricles contract and the semi lunar valves at the beginning of the arteries and
the blood flows into the arteries. At the same time, cuspid valves close and the
atria return to their original state. At this time, the semi lunar valve close and
prevent the backward flow of blood from the arteries into the ventricles.

8. Lub and dub are the heart sounds. The ventricles also reach a state of
rest along with the atria which had already attained this state. It can
be said that the heart is in a complete state of rest at this time.
Therefore two phases can be recognized in the cardiac cycle, the
systole and the diastole. Systole is the contraction of heart where
as diastole is the relaxation of heart. The pressure exerted by the blood on the
walls of the blood vessel is known as blood pressure. This can be measured
by an instrument sphygmomanometer
ACTIVITY 3
Teacher divides the group into five and ask them to write down the working of Pupil do the activity very actively
Heart
CONSOLIDATION
Teacher calls out a member from each group to present the outcome
of the group
1.Name the biological pacemaker
2. What is systole?
REVIEW

9. 3. What is diastole?
4. What is blood pressure?
FOLLOW UP ACTIVITY
Prepare an assignment of artificial pacemaker
Prepare an e-content related to working of heart
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