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Extension Education
1 Home Science Facilitator Jasmina Sangani
Introduction to Extension EducationMeans for dissemination of education and
informationHelps to change human behaviour through use of
knowledge, skill and attitudeWas first implemented in Britain in 1894
Main aim: to reach out to the rural and farming population for promoting social and cultural development.
Definition: It is an applied science consisting of content derived from research accumulated field experiences and relevant experiences drawn from behavioural sciences and combined with useful technology into a philosophy, principles and methods focused on the problems of out of school education for adults and youth.2 Home Science Facilitator Jasmina Sangani
Introduction to Extension Education
Purpose: To bring about a change in attitudes and practices of the people with whom work is done.
Results: Narrows the gap between what is and what is required or desired.
It encompasses the educational, economic, cultural, social and communal objective of learning and teaching.
3 Home Science Facilitator Jasmina Sangani
How can Extension Education be effective?
It should be:humanitarianrealisticflexiblebased on the principle of learning by doingcater to the needs and interests of people at
grass root levelsneeds to be regularly assessed and evaluatedshould include feedback from participants and
local authoritiesneeds to be well planned
4 Home Science Facilitator Jasmina Sangani
Principles of Extension Education that need to be catered to
Principle of Voluntary EducationPrinciple of Self- HelpPrinciple of SatisfactionPrinciple of Self- DependencePrinciple of Motivation and EncouragementPrinciple of Cooperation and ParticipationPrinciple of Local LeadershipPrinciple of whole family participationPrinciple of slow and a continuous processIn agreement with the National Policies and
ProgrammesUndertaken by Trained Subject matter specialistsBe based on applied technology and science, and
in accordance with appropriate teaching method5 Home Science Facilitator Jasmina Sangani
Communication
Essential for the functioning of any programmeIt is a two way process by which the messages are
transmitted from the source to the receiver.It is the process by which information, decisions
and directions pass through a social system and the ways in which knowledge, opinions and attitudes are formed or modified
It is a process by which two or more people exchange ideas, facts, feelings or impressions in a way that each gains common understanding of a message bringing the sender and receiver together.
Gestures and symbols are very important in the process of communication6 Home Science Facilitator Jasmina Sangani
Visual AidsEnsure more effective communication.Attracts the receiver through the sense organsUseful in achieving the objectives by creating
interest, motivation, desire and activity.Classification of audio visual is based on the sense
organs involved:Audio- radio, tape recorder, telephone, public
address system, songs, slogans etc.Visual- These are of two types:
Non- projected- posters, charts, pictures, models, flash cards, cartoons, black- board, bulleti- boards, handbills, paper, clippings, exhibitions
Projected- Slides, film strips, silent films, overhead projections, opaque projections, slide projections, close circuit TV, films, television, VCR, drama, puppetry and songs and dance programmes
7 Home Science Facilitator Jasmina Sangani
Types of CommunicationOne-way Communication (Didactic
Method)The flow of communication is one way from the communicator to the audience.
e.g. lecture method in class roomsDrawbacks
knowledge is imposedlearning is authoritativeless audience participationno feedbackdoe not influence human behaviour8 Home Science Facilitator Jasmina Sangani
Types of CommunicationTwo- way communication (Socratic
Method)Both the communicator and the audience take part
The audience may raise questions, and add their own information, ideas and opinions to the subject.
Learning process is active and democratic
More likely to influence behaviour than one- way communication
9 Home Science Facilitator Jasmina Sangani
Types of CommunicationVerbal Communication
The traditional way of communication has been by word of mouth.
The advent of written and printed matter are of comparatively recent origin.
Direct verbal communication by word of mouth may be loaded with hidden meanings
It is persuasive.Non- direct or written communication may not be as persuasive as the spoken word
10 Home Science Facilitator Jasmina Sangani
Types of CommunicationNon- verbal Communication
Communication without wordsIt includes a whole range of bodily movements, postures, gestures, facial expressions etc.
Silence is non-verbal communication
It speaks louder than words
11 Home Science Facilitator Jasmina Sangani
Types of Communication Communication
Formal Communication
Informal Communication
- follows lines of authority - grape- vine
communication- exists in all organizations- could be more active if the formal channels do not cater to the information needs
12 Home Science Facilitator Jasmina Sangani
Types of CommunicationPersuasion (influence)
art of winning friends and influencing peopledoes not employ force or deliberate manipulationDefinition: A conscious attempt by one individual
to change or influence the general beliefs, understanding, values and behaviour of another individual or group of individuals in some desired way
Persuasive communication is more effective than coercion or authoritative communication
It can change lifestyle and modify the risk factors of diseases
When persuasive communication is deliberately employed to manipulate feelings, attitudes and beliefs, it becomes 'propaganda' or 'brain washing' 13 Home Science Facilitator Jasmina Sangani
Types of CommunicationInformation
The primary function of health communication is to provide scientific knowledge or information to people about health problems and how to maintain and promote health.
Information should be easily available to the people . Exposure to the right kind of health information can eliminate social and psychological barriers of
ignorance, prejudice and misconceptions people may have about health matters
Increase awareness of the people to the point that they are able to perceive their health needs
influence people to the extent that unfelt needs become felt needs, and felt needs become demands
14 Home Science Facilitator Jasmina Sangani
Types of CommunicationMessage
It is the information which the communicator transmits to his audience to receive, understand, accept and act upon.
It may be in the form of words, pictures or signs.
Health communication may fail if the message is not adequate
15 Home Science Facilitator Jasmina Sangani
Types of CommunicationCharacteristics of a good message
in line with the objectivesmeaningfulbased on felt needsclear and understandablespecific and accuratetimely and adequatefitting the audienceinterestingculturally and socially appropriate
Transmitting the right message to the right people at the right time is a crucial factor in successful communication
16 Home Science Facilitator Jasmina Sangani
Elements of CommunicationElement Description
Sender The person or device intending to transmit the information
Message The information in the form of an idea, thought, attitude, feeling, opinion, etc
Receiver The person willing to share the message with the sender
Feedback The reactions and responses of receiver to the sender after receiving the message
Noise The barriers to the message resulting in the distortion or blackout of communication
17Home Science Facilitator Jasmina Sangani
The Two-Way Process of Communication
FEEDBACK
NOISE
SENDER MESSAGE RECEIVER
18 Home Science Facilitator Jasmina Sangani
TerminologyAudio aid: The device which can be heard but the
person and objects whose voices are recorded cannot be seen. e.g. audio-tapes, audio cassettes, record discs
Visual aid: The teaching device which can be seen but not heard. e.g. slides, film- strips, opaque projections, photographs, pictures etc
Audio- visual aid: The teaching device that can be both heard and seen. e.g. motion pictures, video cassette players and television programmes
19 Home Science Facilitator Jasmina Sangani
Categories of Teaching AidsTeaching Aid Category
Examples
Graphic Aids Charts, posters, pictures, cut-outs, placcards, flash cards, bulletin boards, flannel boards, magnetic boards, chalk boards
Three- dimensional Aids
Models, specimen, real objects, apparatus, exhibits, dioramas
Activity Aids Demonstrations, dramatization, projects, excursions, field trips etc
20Home Science Facilitator Jasmina Sangani
Sensory Learning ExperiencesSense Organ
Sensory Experience
Example
Eye Visual Showing the diagram of digestive system
Ear Aural Listening to gramophone recording
Nose Olifactory Smelling a gas prepared in chemistry laboratory
Tongue Gustatory Tasting a food item prepared in the home science laboratory
Skin Tactile Feeling the shape, roughness etc. of an object
21Home Science Facilitator Jasmina Sangani
Category of Aids Examples
Auditory Aids Radio receivers; recordings
Visual Aids Slides, film strips, over-head projector, transparencies, epidiascopic projections
Audio- Visual Aids Motion pictures, television programmes, video shows, computer- video interface
22Home Science Facilitator Jasmina Sangani
Kinds of CommunicationKind Descriptions Examples
Speaking- Listening The sender speaks and the receiver listens
1. Listening to a lecture or discourse2. Listening to a talk or a lesson on a radio- set.3. Listening to a tape or disc
Visualizing- Observing The sender uses visual symbols and the receiver observes
1. Use of an illustration or diagram
Speaking- Listening, Visualizing- Observing
The sender combines speaking and visual symbols while the receiver listens and observes simultaneously
1. An educational television programme2. A video lesson3. An educational movie
Writing- reading Kind The sender uses written words and symbols. While the receiver reads or feels those
1. A handout on a given topic.2. Silent reading from a text book3. Braille system for the blind23Home Science Facilitator Jasmina
Sangani
Media Systems
The total communication effort is based on three media systems:
Interpersonal communication
Mass media
Traditional or folk media 24Home Science Facilitator Jasmina Sangani
Interpersonal CommunicationIt is the most common channel.It is also called face-to-face communication
It is more persuasive and effective than any other form of communication
It is important in influencing the decisions of the undecided persons
The superiority of interpersonal communication over mass media for creation of motivational effect has been well documented.25 Home Science Facilitator Jasmina Sangani
Mass MediaChannels of mass media: TV, radio,
printed media.It has the advantage of reaching a
relatively larger population in a shorter time as compared to other means of communication.
It is a one-way channel of communicationIt carries messages from the centre to the
peripheriFeedback systems are poorly organizedThey are usually not effective in changing
established modes of behaviour.26 Home Science Facilitator Jasmina Sangani
Folk MediaNetwork of traditional or folk media
includes folk dances, singing, dramas, Nautanki in Uttar Pradesh, Burrakatha in Andhra Pradesh and Harikatha in Western India besides informal group gatherings, caste or religious meetings.
These are important channels of communication close to the cultural values of the rural population.
They have been the principal instruments of preserving the cultural heritage.
Health messages may be communicated through these traditional media.
27 Home Science Facilitator Jasmina Sangani
FeedbackIt is the flow of information from the audience to
the sender.It is the reaction of the audience to the message.If the message is not clear or otherwise not
acceptable the audience may reject it outrightThe feedback thus provides an opportunity to the
sender to modify the message and render it acceptable.
In interpersonal communication the feedback is immediate.
In mass communication it takes sometime to get feedback
Feedback is generally obtained through opinion polls, attitude surveys and interviews.
It can rectify transmission errors.28 Home Science Facilitator Jasmina Sangani
Use of Audio- Visual AidsSuggestions for an effective and efficient use
of audio- visual aids:The school must have the audio-visual
department for acquiring, co-ordinating and providing counseling about the use of audio-visual aids.
The advisory services of the departments in national institutes connected with the audio-visual aids should be sought.
The liaison should be maintained with the state level and national institutes connected for getting the audio- visual materials on loan for special use in the schools.
29 Home Science Facilitator Jasmina Sangani
Use of Audio- Visual AidsSuggestions for an effective and
efficient use of audio- visual aids:Teachers must update their
knowledge about teaching aids through professional associations and journals
Prepare your own improvised teaching aids and catalogue for use.
The training sessions should be held for effective use of audio- visual aids
30 Home Science Facilitator Jasmina Sangani
Use of Audio- Visual AidsSteps for developing and organizing an audio-
visual program for teachers: Integrate audio- visual aids with the curricular and
co-curricular activities of the schoolCorrelate the audio- visual aids with the prescribed
textual material.Get the audio- visual lessons evaluated frequently to
improve the performance of a teacherTrain the teachers for proper use and care of audio-
visual equipmentSet up an audio- visual resource center for
cataloguing the teaching- aid materialsPrepare lesson- wise instructional guides for use
with the audio- visual aids.
31 Home Science Facilitator Jasmina Sangani
Use of Audio- Visual AidsCriteria for Selection of Audio- Visual AidsSubject Relatedness- The audio- visual aids should
be closely related to the lesson topics. These aids should give the feeling of entertainment and amusement.
Supplementary Role- The audio- visual aids must be used to supplement the classroom teaching. The audio- visual aids should be selected in such a way that they assist the classroom instructor
Accuracy- It should be observed that the audio- visual aids should have accurate details as any incorrect information conveyed by these aids can cause a lot of harm.
32 Home Science Facilitator Jasmina Sangani
Use of Audio- Visual AidsCriteria for Selection of Audio- Visual Aids
Accessibility- The audio- visual aids to be used for a given lesson should be easily accessible and available to a teacher.
Variety- A large number of audio- visual aids should be used for teaching a lesson because use of a single aid produces monotony
Cost Effectiveness- The audio- visual equipment should be used frequently and for a large number of students so that it becomes cost- effective.
33 Home Science Facilitator Jasmina Sangani
Use of Audio- Visual AidsCriteria for Selection of Audio- Visual AidsPre- viewing- For selecting audio-
visual aids for classroom situation , they must be pre viewed and appraised.
Utility- Only those audio- visuals should be selected which are useful and help further education.
34 Home Science Facilitator Jasmina Sangani
Flash CardsSmall cards of generally 25cm x 30 cm size
which are shown for a few moments before the class to send across a message or impart an idea.
The idea on the flash card should be brief.These cards are usually used for the drill in
various subjects.They may also be used for reviewing a
lesson with the students.Flash cards can be used with other graphic
aids to make the lesson effective.35 Home Science Facilitator Jasmina Sangani
Preparation of Flash CardsCut a foolscap chart paper and cut it
into four equal parts.Write the content on it either in the free
hand or using lettering stencils and sketch pen.
The height of the writing on the flash cards should be approximately 5 cm so that the whole class can see the flash cards clearly
36 Home Science Facilitator Jasmina Sangani
Advantages of Flash CardsCan be used to introduce and present topicsCan be used to apply information already gained by
students to new situationsCan be used to review a topicCan be used for drill and practice in elementary
classesCan be used to develop the cognitive abilities of
recognition and recall of studentsA series of special purpose flash cards can be used
for playing educational games to couple learning with fun
Can be used as a supplementary aid and can be effectively used with other materials
37 Home Science Facilitator Jasmina Sangani
Bulletin BoardsThe material on the bulletin board should
change periodically as new lesson topics are taught.
The students can be asked to collect the display material to be put on the bulletin board.
During the course of the lesson, the teacher can make special reference to the displayed material to make his lesson lively.
38 Home Science Facilitator Jasmina Sangani
Using the Bulletin Boards EffectivelyProcure enough illustrative material from
various sources on a given subject or topic.Sort out the relevant material specific to the
subject or topicDisplay the material on the bulletin board in an
aesthetic manner keeping the color balance and harmony in view.
On the top centre of the bulletin board fix a title for the specific subject of the display material
Below the title fix a brief description about the specific subject or topic
39 Home Science Facilitator Jasmina Sangani
Using the Bulletin Boards Effectively
While teaching make reference to the material displayed on the bulletin board.
Keep the interest of the students alive by involving them in collection of material for the bulletin board
The height of the bulletin board should be one metre above the ground.
The area where the bulletin boards are fixed should be well-lit.
40 Home Science Facilitator Jasmina Sangani
Advantages of Bulletin BoardsWork as a good supplement to normal
classroom teaching Arouses students’ interest in specific
subjectsCan be used effectively as a follow-up of
chalk-board workAdd color and liveliness to the classroom as
they have decorative as well as educational value
Can be used to introduce a topic and review it.
41 Home Science Facilitator Jasmina Sangani
Limitations of Bulletin Boards
They can not be used for all inclusive teaching.
They can only be used as supplementary aids to other teaching aids
At times the collection of materials for a certain topic may be difficult.
42 Home Science Facilitator Jasmina Sangani
Flannel BoardIt is a display board made of wood, cardboard or
straw board covered with colored flannel or woolen cloth.
Display material like the cut-outs, pictures, drawings and light objects backed with rough surfaces like sand paper strips, flannel strips etc. will stick to the flannel board temporarily
The sand paper backed material can be detached easily and replaced with new relevant material as the lesson progresses.
A flannel board of 1.5 m x 1.5 m is most widely used. It can be fixed next to the chalk board
43 Home Science Facilitator Jasmina Sangani
Using a Flannel BoardCollect pictures, light objects or make
cut-outs and back them with sand paper pieces.
Display the material on the flannel board in a sequence to develop the lesson
Change the pictures or the cut-outs as you talk to the students
Create proper scenes and designs relevant to the lesson.
44 Home Science Facilitator Jasmina Sangani
Teaching situations & Flannel BoardsFor telling a story For letter recognitionFor recall testingFor teaching elementary lessons on
numbersFor playing educative jig- saw
puzzlesFor showing inter- relationship
between different parts of a process45 Home Science Facilitator Jasmina Sangani
Advantages of Flannel BoardsHolds the interest of students and arrests
their attentionContinuity in lesson development due to
sequential change of materialQuick and easy to useEnable teachers to talk along with the
changing illustrations to develop a lessonKindles enthusiasm and interest of the
teachers as well as students
46 Home Science Facilitator Jasmina Sangani
ChalkboardsPreferred varieties of chalkboards
Ground glass chalkboardsDull surfaced plastic chalkboards
Vitreous coated iron chalkboards
Recommended Size: 5m x 6m
47 Home Science Facilitator Jasmina Sangani
Characteristics of a boardThe surface of the chalkboard should be
rough enough to writeThe surface of the chalkboard should be
dull enough to eliminate glare which hampers visibility of the writing on the board
The writing should be easily removable with a cloth or foam duster
The chalkboard should be mounted on an appropriate height within the height of the teacher and visibility of the students
48 Home Science Facilitator Jasmina Sangani
DramatizationVery potent method of keeping the
classroom lively and interestingWhen a teacher dramatizes a lesson, the
students become both the spectators and participants.
This makes learning easy and permanent.
49 Home Science Facilitator Jasmina Sangani
Types of DramatizationType Description Example
Role Playing
The players act out the characters based upon their own knowledge and impressions of a small incident. A role playing act requires no script and rehearsal.
Acting out a family scene in which dowry is being demanded from the bride
Playlets The players stage a small play lasting for 10-15 minutes with script preparation and costumes
The story of Snow White and Seven Dwarfs staged by primary students
Pageant The players present a colorful enactment of a phase of history with the period costumes
The story of Indian freedom struggle being staged.
Pantomime The players present a scene in which characters act out loudly with expressions and gestures but do not speak
A street scene in which objects and some characters are shown by gestures
Tableaux The players neither talk nor they act, but they only pose different actions.
A factory scene with workers’ action posed with commentary from the background and spotlight shifting from one pose to another
50 Home Science Facilitator Jasmina Sangani
Pictorial GraphContains of pictures of the same type but
different sizes, proportionate to the magnitudes of the attributes being represented.
It can also be made with the pictures of the same size but different in number to represent different magnitudes.
It has a popular appeal to the viewerCould be used for younger children too to
develop the concepts of more, equal, less and similar comparisons
51 Home Science Facilitator Jasmina Sangani
The Bar GraphA graph is an illustration comparing or
showing changes in a fact or set of facts.A bar graph is a very commonly used graph
52 Home Science Facilitator Jasmina Sangani
The Pie GraphA pie graph is a circle or pie that represents
one whole unit
53 Home Science Facilitator Jasmina Sangani
Points to be borne in mind while preparing a Pie GraphFind out the angles from the percentages
or fractions.Draw the circle on a chart paper using a big
compass using a sketch pen or marker penDivide the circle into appropriate sectors
using the protractorColor each section and write the
corresponding percentage it representsCaption the pie chart with a descriptive
title
54 Home Science Facilitator Jasmina Sangani
Posters
Posters are the graphic aids with short, quick and typical messages with attention capturing paintings.
They can be of different sizesA big poster on a wooden or iron board is
called a bill board or hoardingBill boards are usually used for advertising or
propagandaThey are displayed in the market places, by
rail and road sides to convey messages and ideas in one shooting glance55 Home Science Facilitator Jasmina Sangani
Uses of Posters It could be used for any one of these:
Advertising an event or productCampaigning for a causeGiving a directivePopularizing a sloganDrawing attention towards desirable
actions and valuesGiving a warningPopularizing a symbol or a signPropaganda
56 Home Science Facilitator Jasmina Sangani
57 Home Science Facilitator Jasmina Sangani
Types of Models for Classroom InstructionType of Model Description Examples
Solid Models A solid model is the replica of an original thing made with some suitable material like clay, plaster of paris, wood, iron etc. to show the external parts and features of the thing
Globe; clay model of human and animal ; a vegetable; dolls, toys etc
Cut-away and X- Ray Models
Cut- away and X- Ray models are the replicas of the original things to show internal parts of a thing; it may either be in the form of a cross- sectional model showing internal parts of a thing or may be composed of detachable parts. Cross- sectional models are difficult to make in the institutions as they require expertise to construct them
Cross- sectional model of human body; Petrol engine; automatic traffic control system
58 Home Science Facilitator Jasmina Sangani
Types of Models for Classroom InstructionType of Model Description Examples
Working Models These models are either actual working things or their miniature replicas. For illustrating an operation , working models are of great educational value
A motor, a generator, a cycle pump etc
Sand Models These are graphic lay-out using sand, clay, saw-dust and other objects to show trees, buildings, rivers, etc. Sand models are made by using colored sand in a tray of convenient size or on a table. Generally a green field is shown by covering area with green saw dust, water with blue cellophane, cardboard cut-outs for showing forests.
A tribal village, a city area, marketing complex, a forest area
59 Home Science Facilitator Jasmina Sangani
DemonstrationIt is the method of doing and showing or
undertaking an activity to logically prove some principal or phenomenon.
It is widely used in the science laboratoryIt helps to give proof and show clearly or
point out certain facts underlying the topic being taught
60 Home Science Facilitator Jasmina Sangani
Do’s of DemonstrationKeep everything ready and well- organized before
the demonstration.Place the pieces of equipment for demonstration
high enough for everybody to observePresent the information sequentially stressing the
main ideasLet the demonstrator proceed smoothly without
interruptions.Do not drag the demonstration unnecessarily as
student are likely to loose interest thenAsk questions to the students regarding their
observations
61 Home Science Facilitator Jasmina Sangani
Do’s of DemonstrationIf students have not understood certain ideas during the
demonstration , repeat the conceptUse other teaching aids to supplement your
demonstrationCheck continually that your demonstration is going on
the right track and students are getting the intended ideas.
Summarize the main points after the demonstrationHave a friendly and warm behavior during the
demonstrationAllow students to perform after the demonstration is overGive a handout or written material on the demonstration
along with key concepts
62 Home Science Facilitator Jasmina Sangani
Advantages of Demonstration
Good for acquiring and perfecting operational skills
Engages students’ attention and operation
Encourages students’ participation in learning through questions and answers as the teacher performs
63 Home Science Facilitator Jasmina Sangani
How to make a demonstration effective?Pre- Planning
Rehearsal
Performance
Follow- up
64 Home Science Facilitator Jasmina Sangani
Puppetry- Different types of a Puppet
Type Description
String puppetsOr marionettes
Marionettes consist of puppets with hinged body parts which are controlled by nine strings running through screw eyes in the hands of a performer. Pulling of these strings produces required movements in the puppet. These puppets are mainly manipulated by professional puppeteers
Stick puppets These are painted cardboard cut-outs attached by sticks. The actions of these puppets are manipulated by the teacher and students by hiding behind a screen so that only puppets are visible to the audience
Shadow puppets These are silhouettes (dark shape of someone) of cardboard which produce shadows on a white screen. The motion of these silhouettes is manipulated by the teacher and the students
Finger or hand puppets
Hand puppets are round balls painted as heads with overflowing colorful costumes. These are worn on fingers which operate their movements from below the stage
65 Home Science Facilitator Jasmina Sangani
Advantages of PuppetryIt has all the advantages of dramatizationIt provides amusement and entertainmentIt can heighten human emotions and
capture rapt attention
66 Home Science Facilitator Jasmina Sangani
Types of Radio ProgrammesKind of Programme
Description
Talk A talk is the sequential narration about a topic by a single speaker. A good radio talk is characterized by naturaleness of voice; pleasant tone punctuated by humorous incidents, human interest stories and word pictures
Discussion In a discussion a group of participants air their views in the from of panels, interviews and debates. A number of voices make a discussion interesting but much depends on the moderator who sets the tone of the discussion. The end of discussion is followed by a summary to review the major inputs which emerge out of the discussion or debate
Dramatization These radio lessons have various interesting sound effects to amplify emotions and give the mental pictures of the characters in a pot. Lessons on stories or dance dramas would make use of special sound effects.67 Home Science Facilitator Jasmina Sangani
The teaching procedure of a radio lesson
Procure and study in advance the nature and content of the radio lesson
Prepare students for the radio lesson by informing them about the background of the lesson
Allow the students to listen to the radio lesson and you as a teacher note down the important points covered by it.
Make use of the noted down points to discuss the radio lesson with the students
Clarify and amplify the main points of the radio lesson using other visual aids68 Home Science Facilitator Jasmina Sangani
Micro-ProjectorThese are slide projectors designed to project the micro-film slides or microscopic slides to a group of students simultaneously.It reduces the cost of instruction as it eliminates
the expensive individual microscopies for each student.
Enlargement on the screen is quite large for the students to see and get more details
Accompanied with the teacher's commentary, micro- projection can assure the instructor that the students are understanding what is being taught to them which is otherwise not possible with viewing slides individually through microscopes
69 Home Science Facilitator Jasmina Sangani
Overhead ProjectionIt is a vital teaching aid.It has made projections so simple and
easy that it has replaced chalk- board completely in many classrooms.
It produces images on a screen behind and over the head of the teacher
It can be used in soft light conditions and enables the students to take down notes while viewing the projections on the screen
70 Home Science Facilitator Jasmina Sangani
Advantages of Motion Picture as Teaching AidIt captures attention, arouses interest and imparts
emotional experiences. It can bring far-away experiences, events and actions
filmed earlier to the classroom and motion part of the film heightens reality
By slow motion filming and projection, the stages in a process, acting or event can be viewed in details
Many slow processes can be shown as fast by filming them at the right stages of development to educate students quickly
It allows events which are out of reach or specific to be seen without getting near those events
It can enlarge or reduce things and show the internal parts, processes and working of things
71 Home Science Facilitator Jasmina Sangani
Different Types of ScreenType Description Advantage
Silver Screen
An aluminium powder coated cloth screen is called silver screen
It reflects light well and gives an illusion of depth to the image
Matte Screen
A simple white cloth screen with smooth surface is called matte screen
It is cheap and suitable to wide rooms
Beaded Screen
A white cloth screen coated with glass beads is called beaded screen
It reflects light well and is useful for narrow long rooms
Translucent Screen
A thin white silken cloth or tracing cloth screen is called translucent screen
It gives distinct images on both sides of screen suitable for exhibitions where projection is done from behind without the audience seeing the projector
72 Home Science Facilitator Jasmina Sangani
Advantages of Educational Television ProgrammeTelevision appeals to the eye, ear and
emotions. Thus due to total involvement, it can induce effective learning
It can relive with vividness the past events and happenings
It can directly show the current happenings and even live shows taking place in remote areas
A television set is a compact piece of equipment which is easy and convenient to handle
73 Home Science Facilitator Jasmina Sangani
Effective Use of Television for teachingMotivate students to watch the program critically
and for specific details.During the program draw attention of students to
certain important aspects with short phrasesAfter the programme, a follow-up session should
be carried out and other instructional aids used to reinforce the learning
The follow up should be extended to certain related activities like panel discussion or question- answer session
Test the students on their learning gains after the programme and its application
74 Home Science Facilitator Jasmina Sangani
Computer Aided Instruction (CAI)When the computer is used as an aid to teaching ,
method of instruction is called Computer Aided Instruction (CAI)
In implementing the CAI, the principles of programmed learning are used with an added advantage that the responses of the students are instantly and permanently recorded by the computer.
For CAI the information is broken into small pieces and fed to the memory of the computer.
The students interacts with the computer for learning, testing, immediate feedback and reinforcement
The instructional spectrum ranges from simple drills to problem solving
75 Home Science Facilitator Jasmina Sangani
Classification of Field TripsType Description Specific Example
Local School Trip
It is a trip within the school and its immediate neighbour to acquaint students about the potential of learning from the immediate environment. It is essential for new students to obtain all the information about the school
A trip to the school library to know all the details about using the library
A trip to the first aid room to acquaint the students with the services available
Community Trip
It is a trip made to a nearby place of educational interest and it requires some hours or a complete day
A trip to the local zoo, local park, garden, local museum, local factory, historical place, poultry farm, nature hunt trip,, bank, railway station, post office
Educational Trip
It is the trip made to a distant place requiring more than one day
A trip to a far off historical place, dam, a few important towns enroute a journey
76 Home Science Facilitator Jasmina Sangani