Methods of Teaching Science - Dr Pratik Mungekar

About Dr Pratik Mungekar:


  • Dr Pratik started teaching at 16 & have been working in the field of education & research as a Professor, Scientist, Counsellor for 12 years .

  • Taught to more than 8000+ students and guided 4000+ ( Career Counseling) till date and the count is still on

  • Honoured with 650+ National State and International Awards for his contribution in the field of Teaching and Research.

  • Received 250+ Honorary Doctorates from all over the world & also sets 15 world records..

  • written many papers and articles in various international Magazines, journals and in books.

  • Co-authored many books and written one book on Sustainable Development Goals which has got many International Awards.


on 25th April 2022 , Dr Pratik Mungekar delivered his talk on Methods of Teaching Science (Basics of Science-Conceptual Study Techniques)


if you want to view the complete lecture , please use this link



https://fb.watch/cDpAKyho_t/





“Science does not simply sit down & pray for things to happen but seeks to find out why things happen. It experiments and tries again and again and sometimes fails and sometimes succeeds & so bit by bit it adds to human knowledge. This modern world of ours is very different from the ancient world or the middle ages. This great difference is largely due to Science.” - Pandit Jawaharlal Nehru

As very rightly quoted above our every day is different from the earlier days & this is largely due to the contribution of science in our life. We can’t live a happy life without Science. Science has become an integral part of our life. Science has also influenced educational enterprise & hence it is also an integral part of our educational system. Learning science has become an unavoidable part of general education. In this chapter, we shall discuss the meaning importance & place of science in the school curriculum and general and specific instructional objectives we shall also learn about the organization of science curriculum using a disciplinary approach & integrated approach.

Meaning of General Science


The term science & general science are used synonymously.

Einstein defines science as “An attempt to make the chaotic diversity of our sense-experience observation an respond has goals to logically uniform systems of thought.”


According to the Columbia dictionary “Science is an accumulated & systematized learning, in general usage restricted to natural phenomenon.”


According to ‘Science Manpower Project’, “Science is a cumulative and endless series of empirical observation which result in the formation of concepts & theories, with both concepts & theories being subject to modification in the light of the further empirical observation. Science is both a body of knowledge & the process of acquiring & refining knowledge.”


According to Griggs, “In the literal sense science means the pursuit of knowledge but it has a wider connotation for our purpose, and can be said to mean a knowledge of nature in the widest possible form.”


Based on these definitions of science, we can say that

1. science is the experience of observations and study of natural phenomena.

2. It is organized & systematized learning.

3. It is a body of cumulative & ordered observations.

4. It is knowledge based on observations and experiments.

5. Science is a process as well as a product.


Importance of General Science


The modern civilization is a scientific civilization. In this age, modern society is

completely drawn into the scientific environment. Today science has become an integral part of our life & living. Now we cannot think of a world without science. The importance of general science in day to day life may be summarized as under.


1. Agricultural Advancement

2. Health

3. Trade & Industry

4. Education

5. Other beneficiary areas:- These include

a. Transportation

b. Banking

c. Communication

d. Entertainment

e. Digitalization & Media


Place in School Curriculum


Science has now become a compulsory subject in the school curriculum because of its multifarious value to the individual as well as the society.

1. Intellectual Value

2. Vocational Value

3. Aesthetic Value

4. Utilitarian Value

5. Cultural Value

6. Moral Value

7. Psychological Value

8. Adjustment Value

9. Leisure Time Value


General & Specific Instrumental Objectives


The subject taught in the schools hasgoals/aims their own identity, importance & educational values. The educational value of a subject is established by goals / aims & objectives. Which are achieved through the study of the subject. The aims or long term goals can be regarded as expression of strategy while objectives are specific, immediate and attainable goals, specific to one subject, precise & clearly defined, objectives are more directly concerned with what specifically is being attempted over a relatively short period.

An objective is a point or an end view of the possible achievement in terms of what a pupil is to be able to do when the whole educational system is directed towards educational aims.

The objectives are


1. General Objectives


2.Specific Instrumental Objectives


The major issue in the field of education today is organizing science curriculathe in an effective manner.

Therefore are two major approaches regarding organization of science curriculum viz. Disciplinary Approach & Integrated Approach. These two approaches are explained below.


This approach is also known as the subject approach or the traditional approach. as each subject is separately taught by the teacher in the area of the particular subject in question. For example science was traditionally taught as a subject with different compartments such as physics, biology, and chemistry as separate components of the science subject.

Similarly language was taught as a separate subject from other subjects. English was taught as being different from Hindi, Oriya, History, Geography etc. Thus each subject has a well defined boundary from which there is no connection to the other.


Thus the approach in which every subject is taught as a separate discipline is called as disciplinary approach. This approach is based on the premise that, the subject is a store house of facts, methods, theories, concepts & generalizations. In disciplinary approach the focus is more on the subject & its content rather than the process. In India the disciplinary approach is very popular in the higher secondary level. It shall be the responsibility of teacher to show the connection between different disciplines (subjects).


Characteristics of disciplinary approach

1.In-depth Conceptual Knowledge Every subject has detailed and in-depth conceptual knowledge

2.Disciplinary based teaching Each subject is taught as a separate discipline.

3.Content based teaching The teaching of disciplinary based curriculum largely based on content.

4.Source of knowledge/information In disciplinary approach the teacher is the main source of knowledge / information.

5.Main purpose The main purpose of disciplinary approach is to prepare specialist, scientists etc.

6.Mastery of the subject The learner is expected to master the subject matter.

7.Chalk & talk based teaching This approach mostly leads to chalk & talk based teaching.

8.Text book is main authority This approach restrains student observations, values or conclusions different from the text book which is the main authority in disciplinary approach.

9.Importance /Merits of the disciplinary approach

10.Expert in the subject

11.This approach develops expertise in particular subject

12.Subject Growth

13.The disciplinary approach foster the growth of the subject.

14.Time Saving

15.Disciplinary approach is very time saving in terms of course completion.

16.Detailed Conceptual Understanding

17.The disciplinary approach of organizing science curriculum provides detailed conceptual

understanding of the subject.

5.Theory building

6.The disciplinary approach is very useful in building theory in particular subject/discipline.

7.Higher level thinking


As in disciplinary approach the subject is store house of theories, concepts, generalizations etc. This lead to higher level thinking.

Limitations

1.Less opportunity for creativity

2.The disciplinary approach does not provide much opportunities for students creativity.

3.Dropout

4.Disinterest in particular subject / discipline may lead to dropout.

5.Require expert teachers

6.The disciplinary approach requires highly knowledgeable & expert teachers.

7.Less Scope of socialization & social skills

Isolated teaching reduces the scope of socialization and social skills


1.Integrated Approach


“An integrated approach allows learners to explore, gather, process, refine and present

information about the topics they want to investigate without the constraints imposed by traditional subject barriers. “(Pigdon & Woolley, 1992)

Integrated approach encourages student to see the interconnectedness and interrelationships between the different curriculum areas. Instead of focusing on learning in isolated curriculum areas, an integrated approach is based on skill development around a particular theme that is relevant to students of a particular class.


Characteristics of Integrated approach

Wide conceptual knowledge Integrated approach provides an opportunity for broader & wider conceptual knowledge.

Child-centered teaching

Integrated approach promotes child centered teaching

Integration of skills with contents

Integrated approach of curriculum organization promote integration of skills with contents.

Teacher as a mediator

The role of a teacher is mediator between knowledge and child.

Use of modern method

The integrated approach requires use of modern methods of teaching such as inquiry based teaching.

Flexibility

No rigid disciplines exist. Integrated approach is flexible.

Preparation of future citizens:-

The main purpose of integrated approach is to prepare the future citizens of a society.

Openness

The approach is open to new ideas and procedures.

Multi learning Environment:-

The approach requires multi learning environment such as classroom, lab, outdoor, computer, internet etc.


Importance / Merits of integrated approach


Detailed conceptual understanding

This approach help the learner to get detailed conceptual understanding of the content.

Choice based selection of discipline / subject

Integrated approach help the students to select discipline / subject according to their own interest.

Creativity

This approach foster creativity among learner.

Promotion of modern methods

This approach promotes modern methods of teaching such as collaborative learning, cooperative learning etc.

Development of self concept & socialization

Integrated approach helps in developing self concept & socialization

Realistic Application

This approach has realistic applications.


Limitations of integrated approach


Time Consuming

Integrated approach is time consuming as a single theme analysis is done with different

discipline point of view.

Need of well equipped & expert teacher

Integrated approach needs well equipped & expert teachers who are capable of using modern

methods of teaching.

Create confusion

If this approach is not handled carefully then child may get confuse in various disciplines.

Proper selection & organization of various disciplines

Integrated approach needs expertise to select theme and organization of various disciplines.


There is no definition of general science or science which is universally accepted. In general we can define science as an accumulated and systematized learning in general usage restricted to natural phenomenon. Science is the activity where truthfulness is obviously an essential condition for success. Its success is measured by its truthfulness. Today each and every occasion of life is influenced by science has become an integral part of our school education system.


METHOD OF TEACHING GENERAL SCIENCE


METHODS OF TEACHING GENERAL SCIENCE:- All the methods of teaching science can be classified into two types:-

(i)Teacher-Centred and

(ii)(ii) Pupil-Centred


(i) Teacher-Centred Methods:-

This type of teaching methods focus on telling, memorizing, recalling information. The students participation is very limited where in they only ask questions or answers questions. Most of the time the students are passive listeners and receive the knowledge. The teacher is centre of process that goes on in the classroom.

(ii) Pupil-Centred Methods:-

This process emphasizes on need, requirement, interest and capability of students. The students are active participants where in their skills and abilities are developed. The climate in the classroom is conducive where in flexibility in there. Teacher and students jointly explore the different aspects of problem. The role of the teacher in to create a problematic situation, have materials and resources available to the students, and help them identify issues, state hypotheses, clarify and test hypotheses and draw conclusions.





LECTURE-CUM-DISCUSSION METHOD



This method is a combination of the lecture method and the discussion method. This is very helpful in building an active verbal interaction between the teachers and students. The teacher delivers the lecture and provides some time (10 minutes) after the lecture for discussion among the students and teacher in the classroom. The student’s views, comments experiences, problems, difficulties in understanding any point or portion of the lecture come to teacher’s knowledge and teacher replies, and clarifies the doubts. It is an important strategy in stimulating the students interests and assess their understanding of the concept.


It is a process in which interaction goes on in between teacher and students, where in question and answer are asked and given by both the teacher and students making the process interactive, and effective. The basic purpose of this method is to disseminate information and attain educational objectives by learning. The discussion in the class is intended to be a give and take between teacher and students. This method helps students to apply critical thinking power in various situations. Higher learning skills like analysing, synthesizing, generalizing are given front seat.


PRINCIPLES OF LECTURE-CUM-DISCUSSION METHOD:-


The Principles are as follows:-

1.The teacher should be aware of needs of learners.

2.The teacher must arouse interest in the subject and sustain in the mind of students.

3.Teacher must use visual aids and use ICT.

4.The teacher must take enough time to build mental pictures, with new concepts, previous

5.knowledge, moving from simple to difficult ideas, for better conceptual development.

ROLE OF TEACHER The teacher has to perform following roles:-

1.Encourage students to participate in discussion.

2.Ensure, student’s attention span is maintained.

3.Pre plan and prepare properly for discussion and support ideas with factual evidence and

4.examples.

5.Encourage student taking than teacher talking.

6.If possible give time before hand so that, the discussion becomes productive.

7.Do not dominate rather get the discussion started set goals, summarize, mediate and clarify.

MERIT OF LECTURE-CUM-DISCUSSION METHOD:-

1.It creates democratic environment in the class.

2.Develops and improves communication skills of students.

3.It brings about attitudinal change among students.

4.It helps in assessing the factual knowledge of the students.


LIMITATIONS OF LECTURE-CUM-DISCUSSION METHOD:-


1.It is helpful for mature students.

2.If it is not properly used, then the principle of “learning by participating” is not achieved.

3.If teacher does not handle students effectively then the students may be in disciplined rather

4.than participation.

5.If not managed properly, it will not help all types of students in the class.

6.Teacher must control his emotions else this may result in wrong output.


SUGGESTION FOR IMPROVEMENT:-


1.The teacher must maintain good eye contact with students in order to make the process meaningful.

2.The teacher must actively involve students.

3.The teacher must instruct clearly.

4.Must keep the group focused on the task.

5.Teacher should use good time management techniques and evaluate students as they learn

6.in the class.

7.Teacher should not read extensively from lecture notes or text books.

8.Teacher must not ignore participant’s comments and feedback.


LABORATORY METHOD


LABORATORY METHOD:-

This method in commonly thought of as a hands on and minds on approach to teach science where in students have the opportunity to gain some experience with phenomena associated with their course of study. In this method either student participate alone or in small groups. They produce or manipulate various variables that are under exploration. The degree to which student has control over exploration can vary over a wide range. Here the students learn by actual doing rather than my observing the experiments. As young children do it by themselves, the experience is impressed more firmly in their minds. Thus this method in psychologically sound as it satisfies the natural urge for activity. This method broadens interest of the students. They learn many virtues through laboratory activity. The experience in a laboratory is very rich in personal satisfaction as they gain it first hand. The sense of excitement and challenge help them to achieve some tangible him.


PRINCIPLES OF LABORATORY METHOD:-

1.It follows the principle of learning by doing.

2.It follows psychological principle, where students age, lord and interest is taken into

3.consideration.

4.The work should be Pre-organized and Pre-selected.

5.Teacher must see that, students are allowed to work independently without much

6.interference.

7.The teacher must ensure that apparatus and equipment should be checked pair hand.

8.Teacher must see that students are able to follow instruction and record their observation

9.properly.


ROLE OF TEACHER:-


1.Teacher must be a facilitator of the process of doing experiments by students.

2.Teacher must check the apparatus previously so that it goes on smoothly.

3.The practical work must be Pre-organized and Pre-selected.

4.The skills of handling apparatus, drawing, diagrams, careful observations taking necessary

5.precautions, must be developed among students.

6.The teacher must be that, the student is doing experiment properly by following proper

7.procedure.


MERITS OF LABORATORY METHOD:-

The Merits are listed below:-


1.This method follows child-centred approach.

2.It makes students active and alert.

3.It gives scope for learning by doing and students do a lot of thinking themselves.

4.Different skills are developed.

5.It paves way for exploration experimentation and verification of scientific facts and principles.

6.It inculcates good virtues like, honesty, truthfulness, dignity of labour etc.

7.It helps in developing sprit of enquiring.

8.It helps in developing higher order this king capacities like reasoning, analyzing, synthesizing

9.etc.


SUGGESTIONS TO IMPROVE:-

1.This method should not be considered independently but should form a part of the total science programme.

2.The practical work must be pre-planned.

3.It is imperative that same individual laboratory work must be done by every student.

4.Instead of performing the experiments started in the book should be little modified for better

5.result.

6.Before experiment in performed the purpose must be clarified to the students.



OBSERVATION METHOD:-


In this method, the student observes and acquires knowledge. Through we cannot call this as a specific method of science teaching but as a matter of fact almost all science begins with observation the students observe nature, in groups, in lab at school at home or in gardens. The result of this process information of a concept of nature which in permanent in mind. The training of pupils in observation is really strong his mind with suitable experiences all thoroughly classified and digested. Science provides remarkable. A raining in observation and reasoning. The learners reasons from the once established facts and form concepts about further observed phenomena.

PRINCIPLES OF OBSERVATION:-

It is based on the following principles.

  • Principle of freedom.

  • Principle of experience.

  • Principle of play-way.

  • Principle of individual effort.

  • Principle of activity.

  • Principle of logical thinking.

  • Principle of purpose fullness.

ROLE OF TEACHER:-


A lot is expected / demanded of the teacher in this method:-

1. He must be man of knowledge and give adequate references for further observation. 2. He should possess curiosity, scientific attitude, interest, sprit of investigation so as to inculcate such qualities among students who in term observe and discover many things. He must provide an atmosphere for freedom in the classroom in order to encourage students to make observations. 3. He must be a guide, a working partner and friend of the students. 4. He should devise and plan different activities according to the age, ability and interests of the students.


MERIT OF OBSERVATION METHOD:-


1.The work of the teacher becomes interesting.

2.The students see think give logic and thoughtful answers.

3.The students learn the similarities and dissimilarities of objects clearly and easily.

4.The knowledge acquired in permanent.

5.Students develop interest in subject.

6.Students become self-dependent, self-reliant and self-confident.

7.The problem of home-work in solved.

The relation between teacher and taught becomes intimate and healthy


LIMITATIONS OF OBSERVATION METHOD:-


1.It is too much to expect children observe and retain knowledge. The students are in nature sometimes and their knowledge and thinking power in limited.

2.It is not suitable for all the topic of science.

3.This method is information. The practical part of it remains underdeveloped.

4.It is not economical from time point of view.

5.This method is also not economical as it requires a lot of preparation and maintenance form school point of view. Where is students can observe many things.


SUGGESTION TO IMPROVE:-


The students must be given full freedom during observation.

Interest and curiosity must be developed in students prior to making observations.

The teacher must check and observe things beforehand.

The teacher must put questions and pinpoint students observation as and when required.

The school must have science corner where in students observation and activity goes on

continuously.

A science bulletin board, A museum shelf, Aquaria and terraria must be there in school where

in students develop a constant interest in the subject.

A weather station must be setup where in students observe the weather develop interest


PROJECT METHOD


This method was propounded by W.H Kilpatrick. This method was perfected by J.A Sternson. The base of this method lies in the philosophy of pragmatism. This method emphasizes on building a comprehensive unit around an activity which may be carried out in school or outside. The essence of this method lies in the fact that a group of students do a purposeful task. This implies the students undertake the activity in a group or individually over a period of time. It may include a number of activities and the end product is in the form of written report or a display.

“A project is a whole-hearted purposeful activity proceeding in a social environment”- Dr. William Kilpatrick.

“A project is a problematic act carried to completion in its natural setting”. – Stevenson. “A project is a bit of real life that has been imported into school. – Ballard. Thus, project is a purposeful activity and planned activity which is achieved in social,

natural situations created in schools.


PRINCIPLES OF PROJECT METHOD:-

1.The Principle of freedom.

2.The Principle of purpose.

3.The Principle of activity.

4.The Principle of interest.

5.The Principle of utility.

6.The Principle of correlation.

7.The Principle of sociability.

8.The Principle of experience.

9.The Principle of reality.

The Principle of learning by doing



TYPES OF PROJECT:-


All the project can be divided majorly into two types

(i)Individual Project.

(ii) Group Project.


According to W.H. Kilpatrick projects are of four project.

Producer projects

Consumer projects

Problem projects

Drill projects.

PRODUCER PROJECT: -

Here the emphasis is on actual construction of a material object or article.

CONSUMER PROJECT: -

Here the emphasis is gain on obtaining either direct or vicarious experience, such as reading and learning stories, listening to a musical delectation etc.

PROBLEM PROJECTS:-

The main purpose is to solve a problem using intellectual process, such as determining the density of a certain liquid.

DRILL PROJECTS: -

This type of project emphasizes on attaining a certain degree of skill in a reaction as learning a vocabulary.



Steps of Project Method:-


PROVIDING A SITUATION: -

The teacher provides a situation to the students which must create same problems and students must feel interested to work.


CHOOSING AND PURPOSING: -

The students are tempted to choose a project. The teacher should stimulate discussion by suggestion. While choosing the project the teacher should bear in need that it should be of real need to students. The purpose of project must be clearly defined to the students. The project must be common and acceptable to all. In case of wrong choosing, teacher must help students tactfully to see that the students choose a better project. They should be asked to write down the reasons for selection.

PLANNING: -

The success of the project lies in the good planning. The students should plan out ht whole project under the guidance of teacher. Every child must be encouraged to participate in the discussion and make suggestion. All the students are encouraged to write down the plan neatly and properly.


EXECUTING: -

Execution of different activities to different students on the basis of their capacity leads to successful completion of the project work. It is the longest step and requires meticulous assignment of duties to different students or groups the teacher must guide and encourage students. It is the duty of the teacher to keep watch on the process of activities and instruct as and when requirement.



EVALUATION: -

This is very important step as; the students review the project and find out mistakes if any. Self-Criticism is very important at this stage. The students discuss their work and rectify their mistakes and recollect useful knowledge. The teacher sees that the objectives of the project have been achieved.


RECORDING: -