Monday, June 22, 2020

VIDEO LINK | Break the Chain

This is a video done by students of Department of physical science , GCTE , Trivandrum in the COVID-19 Context. This video provide basic scientific facts about 'Break the Chain' program, in Kerala. This video also shed light into basic constituents involved in the hand sanitizer and their chemical properties.




https://youtu.be/gfL3VGVUPo4

VIDEO | BREAK THE CHAIN | 1st Year B.Ed Students | Physical Science | GCTE TVM


Thursday, June 11, 2020

Virtual Field Trip on community resources




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VIRTUAL FIELD TRIP REPORT



Field visit to find out community resources



PLACE: BARAPOLE MINI HYDRO-ELECTRIC PROJECT , KANNUR




SUBMITTED BY
SREELAKSHMI A
1St YEAR B.ED
PHYSICAL SCIENCE




Barapole Small Hydro Electric Project

 

The project is located in the Barapoal river which separates the Ayyankunnu Grama Panchayat of Iritty Taluk in Kannur District and Makuttam in Kodak District in Karnataka. The power house of the project was built at Palathinkadavil near Kootupuzha.

 

 

Figure shows a View of Barapole at Makuttam

 

The Barapole Hydro Power Project is wholly owned by KSEB.

Barapole generates 15 MegaWatt of power with 5 MegaWatt of turbines on a small hydropower project. The annual output is 36 Mega Units.

The cost of the project is Rs 120 crore with a 15 MW installed capacity. The Barapole Hydro Power Project is the largest among the mini hydro projects in Kerala. For the first time in Kerala, the Barapal River, a tributary of the Valapattanam River, is building a power project in the river. About one-third of the water that flows into the river is discharged through two trenches built across the river at the bottom of the river. The slopes to the left bank of the river above the canals are two and a half meters wide and three meters deep on average. The water flowing through the river through a sieve called  track walk; sinks into the trench and the water flows through the canal to a length of 15 m, 16 m wide and 74 m deep. Shutters have also been built to control the flow of water to the lake. In addition, the Solar Power Project is also envisaged to generate 15 MW of power. The project is estimated to cost Rs 35 crore and the center will cost Rs 7.5 crore. Though it was originally conceived as a major project, a dam was constructed across the river and the decision was changed by the Supreme Court order that the water in the Rajiv Gandhi National Park should not be changed or altered. According to the official, this project aims to provide maximum power during the monsoon season and to conserve water in Iritty for summer.

 

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Barapole mini hydroelectric project

The project can generate 36 million units of electricity per year. The project includes the construction of conduits below the riverbed for diversion of water to the power house. The other components include intake pool, power duct, de-silting tank, the power channel and three penstock pipes and three turbines with 5 MW capacity each. The project is located on the Barapole (Barapuzha) river, a tributary of the Valapattanam river.

 A major advantage of the project is that its highest generation of power will be during monsoon season. The power generated from the hydroelectric project will be transmitted to the grid through the 110-kV substation at Iritty. The project generates an additional 3 MW of solar power as solar panels are being laid over the three-km long canal from the river. As the project is located on a site ideal for developing eco-tourism, the hydel tourism wing of the KSEB is planning to develop some amenities there to draw tourists.

HYDRO ELECTRICITY

Hydroelectricity is electricity produced from hydropower. In 2015, hydropower generated 16.6% of the world's total electricity and 70% of all renewable electricity and was expected to increase by about 3.1% each year for the next 25 years.

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The cost of hydroelectricity is relatively low, making it a competitive source of renewable electricity. The hydro station consumes no water, unlike coal or gas plants. It is also a flexible source of electricity, since the amount produced by the station can be varied up or down very rapidly to adapt to changing energy demands. Once a hydroelectric complex is constructed, the project produces no direct waste, and it generally has a considerably lower output level of greenhouse gases than photovoltaic power plants and certainly fossil fuel powered energy plants. Rainforests are the prime locations for the dams that are usually required to create the force of water needed to generate electric power; therefore cutting down the trees near a dam actually increased the amount of water flowing into the dams.

PHYSICS BEHIND HYDROELECTRIC POWER STATIONS

Hydroelectric and coal-fired power plants produce electricity in a similar way. In both cases a power source is used to turn a propeller-like piece called a turbine, which then turns a metal shaft in an electric generator, which is the motor that produces electricity. A coal-fired power plant uses steam to turn the turbine blades; whereas a hydroelectric plant uses falling water to turn the turbine. The results are the same.
Take a look at the following diagram of a hydroelectric power plant to see the details

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The theory is to build a dam on a large river that has a large drop in elevation. The dam stores lots of water behind it in the reservoir. Near the bottom of the dam wall there is the water intake. Gravity causes it to fall through the penstock inside the dam. At the end of the penstock there is a turbine propeller, which is turned by the moving water. The shaft from the turbine goes up into the generator, which produces the power. Power lines are connected to the generator that carries electricity to our homes. The water continues past the propeller through the tailrace into the river past the dam. By the way, it is not a good idea to be playing in the water right below a dam when water is released!


Falling water produces hydroelectric power.

A hydraulic turbine converts the energy of flowing water into mechanical energy. A hydroelectric generator converts this mechanical energy into electricity. The operation of a generator is based on the principles discovered by Faraday. He found that when a magnet is moved past a conductor, it causes electricity to flow. In a large generator, electromagnets are made by circulating direct current through loops of wire wound around stacks of magnetic steel laminations. These are called field poles, and are mounted on the perimeter of the rotor. The rotor is attached to the turbine shaft, and rotates at a fixed speed. When the rotor turns, it causes the field poles (the electromagnets) to move past the conductors mounted in the stator. This, in turn, causes electricity to flow and a voltage to develop at the generator output terminals.
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Diagram of a hydroelectric turbine and generator.

Reusing water for peak electricity demand

 

Demand for electricity is not "flat" and constant. Demand goes up and down during the day, and overnight there is less need for electricity in homes, businesses, and other facilities. For example, here in Trivandrum, Kerala at 12:00 PM on a March hot weekend day, there is a huge demand for electricity to run millions of air conditioners! But, 12 hours later at 12:00AM not so much.
Hydroelectric plants are more efficient at providing for peak power demands during short periods than are fossil-fuel and nuclear power plants, and one way of doing that is by using "pumped storage", which reuses the same water more than once.
Pumped storage is a method of keeping water in reserve for peak period power demands by pumping water that has already flowed through the turbines back up a storage pool above the power plant at a time when customer demand for energy is low, such as during the middle of the night. The water is then allowed to flow back through the turbine-generators at times when demand is high and a heavy load is placed on the system.

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The reservoir acts much like a battery, storing power in the form of water when demands are low and producing maximum power during daily and seasonal peak periods. An advantage of pumped storage is that hydroelectric generating units are able to start up quickly and make rapid adjustments in output. They operate efficiently when used for one hour or several hours. Because pumped storage reservoirs are relatively small, construction costs are generally low compared with conventional hydropower facilities.

Trench weir: An innovative structure for diverting water from high gradient rivers

weir is an impervious barrier constructed across a river to raise the water level on the upstream side.In a weir the water overflows the weir, but in a dam the water overflows through a special place called a spillway.
Trench weirs are commonly adopted in boulder streams for diverting water for use in hydropower, irrigation and water supply schemes etc. Here, a trench is built across the river below its bed level. The top level of this trench is covered with bars to prevent the entry of sediment into the trench.

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Conventional types of raised-crest weirs for diverting water from the high gradient rivers for its use in generation of hydropower, irrigation, water supply schemes, etc. are not well suited as the afflux brings a remarkable change in morphology of the river. The sediments are deposited upstream of the crest as a result, the intake gets easily choked up. Moreover, any structural component that protrudes out of the river-bed gets damaged easily by the force of large sediments rolling down during floods. The most suitable weir adopted in such scenario is trench weir, which is simply a trench built across the river below its bed level. The top of the trench is covered with bottom rack bars. Water while flowing over it, passes through the bottom racks and enters into the trench and being collected in an intake well located at either of the banks at the end of the weir. This type of weir has a definite advantage as it does not affect the morphology of the river. However, due to being below the bed of the river, the bed sediment load of size less than the clear spacing of the rack bars enters into the trench which necessitates post-monsoon clearance of the trench.

Video Reference links:








Reference:







Monday, June 8, 2020

Comparison between Education in Finland and Canada

Sl.no
FINLAND
CANADA
1
It has three levels
1.    Basic education
2.    Upper secondary education and training
3.    Higher education
It has three levels
1.    Primary education
2.    Secondary education
3.    Post secondary education
2
Basic education is uniform
Elementary education is different at different jurisdiction
3
Finnish children start their actual education at the age seven
Canadian children start their actual education at the age of six
4
Nine years of compulsory education
Education is compulsory for 6-16 age grouped pupil. Some provinces extend it to 18 years.
5
Pre primary education is available to children in the year preceding compulsory education.
Kindergarten, operated by local educational authorities and offering one year pre grade-1 training, non compulsory education available for five year old child.
6
Upper primary levels comprises vocational education and training  and general education
In secondary education level vocational and academic programs are offered within separate, dedicated, vocational training centers.
7
Education is free of cost for all students
Education in public primary and secondary schools is free but parents have to pay student fee between $5 to $100 per term for extracurricular classes such as music, arts etc
8
There are no space for private schools and coaching
Private schools are there and most of them are religious
9
Mid day meal is provided to all students
Canada has no national school meal program
10
Finland has 190 days school days in an year
Canada has 190 days school days in an year
11
There are no mandatory standardized test in Finland apart from one exam at the end of student’s senior year in high school
Canadian primary and secondary standard examinations are developed in Canada and taken by primary and secondary students
12
For the first six year of basic education, students tend to taught by same class teacher across subjects areas and subject specialists for remaining three years.
Different teachers teaches at different levels
13
99 % of students attend public schools
92% of students attend public schools
14
Educational system and quality of education are similar everywhere across the country
Educational system and quality of education are almost similar between provinces



Sunday, June 7, 2020

importance of theatre practise on education


INTRODUCTION

Theatre is a collaborative form of performing art that uses live performers, typically actors or actresses, to present the experience of a real or imagined event before a live audience in a specific place, often a stage. The performers may communicate this experience to the audience through combinations of gesture, speech, song, music, and dance. Elements of art, such as painted scenery and stagecraft such as lighting are used to enhance the physicality, presence and immediacy of the experience.





THEATRE IN EDUCATION (TIE)

Theatre in education (TIE) originated in Britain in 1965 and has continued to present day. TIE typically includes a theatre company performing in an educational setting (i.e. a school) for youth, including interactive and performative moments.
Theatre as an educational medium uses entertainment and humor to attract children’s attention, and emphasizes learning through the interplay between actual and fictional contexts. The use of ‘Theatre in Education’ (TIE) presents a novel approach to engaging young people in education through art. Evaluations have revealed that the overwhelming majority of students demonstrate enjoyment and enthusiasm through watching educational theatre, are receptive and listen attentively, and can correctly identify the educational messages being portrayed. The use of TIE began in Britain in the mid-1960s, and grew out of recognition for child-centered education, whereby learning is more effective when a child investigates and discovers through active play .
The specific aim of TIE is: to harness the techniques and imaginative potency of theatre in the service of education and to provide an experience for children that will be intensely absorbing, challenging, even provocative, and an unrivalled stimulus for further work on the chosen subject in and out of school.
Through performance-based education, children have the opportunity to discover their place on the ‘world stage’. TIE has been applied to a wide range of educational topics with children, including environmental issues, substance use, accident prevention, abuse, neglect abuse and bullying, social issues, nutrition, disability awareness, etc


PSYCHOLOGY OF THEATRE IN EDUCATION

The use of theatre as an effective means of educating young people has its basis in key psychological theories.  Socio-cultural theory stems from the work of Vygotsky and Bandura.
Vygotsky proposed learning was embedded within social events and occurred as individuals interact with other human beings, objects and events in the environment and this interaction helps the child learn what is important in their culture. Similarly, Bandura emphasized the importance of observational learning whereby children model behaviors, attitudes and emotional responses of others according to the observed benefits and adverse effects of those behaviors.
Participation in drama exercises and games has been proven to bring many psychological, educational, developmental, and sociological benefits to all those involved. By participating in drama and having the ability to identify conflicts, children learn how to face problems head on as well as the process needed to solve problems. They learn how to hypothesize and test possible solutions to their problems, develop alternative ways to approach them if the first way does not work, and even redefine problems if they see others arise. Through creative drama, children are urged to evaluate conflicts, process all the information presented, discover and imagine potential resolutions, think creatively, and work together to solve a problem.


TEACHING AS A PERFORMING ART

Good teaching is one-fourth preparation and three-fourths pure theatre – Gail Godwin



 Lecturing from the front of the room with the students as audience sitting passively in rows is quit a boring task. That is not exactly the real teaching. New teachers need to develop effective ways of being for the classroom. To that end, understanding how performing artists work and how actors approach a role can benefit the new educators. In addition, participation in an acting class designed expressly for teachers will aid new teachers in the development of the vocal, physical, mental and emotional ways of being that will translate to greater classroom success.
Performing, in the classroom sense, means acting in a way that creates a positive classroom environment that encourages student achievement. Effective teachers understand intuitively how to perform in a classroom.
We say and do from the tone of our voice to our gestures, body movements and furniture layout – is performed in an artful way to maximize our effectiveness in promoting student growth and achievement. However, for those teachers for whom performing is not second nature, the skills required to be a most proficient performer can be learned. That is, if there is someone available to teach them. Unfortunately, most college methods courses focus on the whats (planning lessons, knowing about various pedagogical tools and technologies) and focus less on the hows of implementation and ways of being in the classroom. But a teacher has to seek various methods of transaction of the content through various hows. For this a teacher has to practice performing arts. Working in the performing arts sharpens senses. A performer understand when to lighten the mood, when to slow the tempo and when to be still. A teacher should be both teacher and actor; a teacher uses her voice, body and props to establish a sense of trust and rapport, to excite imaginations, as well as to communicate ideas and intentions as clearly as possible. Moreover, this ability had been nurtured and developed in the theater and through practice.

Performing is central to teaching. Professional performing artists in the theater are very careful about how they use their voices, bodies and environment to maximize audience involvement and participation in the presented work. These performing artists spend years, lifetimes even, learning and perfecting their craft. The performing arts have become a great resource in strategies for securing the attention and involvement of audiences. Teachers can (and should) avail themselves of this storehouse of knowledge as we; too, use our voices, bodies and classrooms to create optimal learning environments for our students.

Yes, as teachers, our collaborators, our audience, are first and finally our students. Yet, real-life students do not enter into the traditional teacher preparation model until the very end, during student teaching. Theoretical discussions of “students” abound, but there is precious little contact with the children themselves. There is scant time for novice teachers to get up on their feet and rehearse how to enter their classrooms, call a class to order, take attendance, counsel students, provide clear instructions, focus a chaotic classroom, raise the energy level in the room, elicit more thoughtful responses from reluctant students, question effectively, implement rules and consequences or give meaningful praise and constructive feedback. These are all acts; these are performances that can and should be rehearsed. A teacher should do much rehearsal before entering into a class.


DIFFERENT  TEACHING  TECHNIQUES WHICH CAN BE INCORPORATED IN CLASSROOM WITH THE HELP OF THEATRE

1.   Act out the Dialogue
One of the easiest ways to incorporate drama in the classroom is to have students act out the dialogue from their textbooks. Simply pair them up, have them choose roles, then work together to act out the dialogue, figuring out for themselves and the stage movements. This is effective for a beginning activity of incorporating drama in the classroom.
2.   Perform Reader’s Theater
Another good beginning exercise is to do Reader’s Theater. Hand out copies of a short or one-act play, have students choose roles, and then read the play from their seats without acting it out. However, do encourage them to read dramatically, modeling as necessary.
3.   Act out the Story
If students are reading a short story, the students act out this story or part of the story, working in groups and assigning roles and determining the blocking. This is particularly effective with short stories or one-scene stories with limited characters.
4.   Give “Voice” to an Inanimate Object
A monologue is a short scene with just one character talking, either addressing the audience .After writing them, students can read the monologues aloud
5.   Create a Character
Have students develop a character, writing a one-page profile on the character’s background, appearance, personality, etc. Have them introduce the character to the class, explaining what interests them about their character.
6.   Write a Monologue
Using the character they’ve already developed, have students write a monologue for that character then perform it.
7.   Mime and Dubbing
Have students act out short scenes without dialogue. The rest of the class then supplies the dialogue, developing the “script.
Improvise Put students in groups of two or three, and assign the characters and the situation to the groups, perhaps using 3x5 index cards. Give a time limit of two to three minutes per scene. Students go from there, extemporaneously creating the dialogue and movement themselves.
8.   Puppet-performed theatre Puppets have demonstrated potential as an educational and clinical tool and have relevance for counselling, health education and nursing services, through  providing opportunities for creative expression and learning through play  . Many theatre-based education programs have utilised puppets as performance figures .

9.   Actor-performed theatre Actor-performed theatre has been utilised as a means of educating young people. Group discussion and, in some instances, role play followed the performance. The intervention focused on social issues particularly around the transition from primary to secondary school.

10.Research/theory based performances
Several of the programs reviewed here that found positive effects were based on theoretical understandings of any topic. Particularly with elementary or primary school children, a sound knowledge base of developmental issues and risk factors is necessary to be able to change children’s intention to engage in risky behavior.

BENEFITS OF THEATRE IN EDUCATION

Increase concentration of students:
Playing, practicing, and performing develop a sustained focus of mind, body, and voice which helps with other areas of life including school.
Increase Communication Skills:
Drama enhances verbal and nonverbal expression of ideas. It improves voice projection, articulation, fluency of language, and persuasive speech.
Increase Problem Solving skills:
Students learn to communicate the who, what, where, when, and why to the audience. Improvisation fosters quick-thinking solutions, which leads to greater adaptability in life.
Provide Fun and entertainment:
Theatre brings play, humor, and laughter to learning; this improves motivation and reduces stress.
Build Trust:
The social interaction and risk taking in drama develop trust in self, others, and the process.
Increase Memory
Rehearsing and performing the words, movements, and cues strengthen this skill like a muscle
Increase Social Awareness:
Legends, myths, poems, stories, and plays used in drama teach students about social issues and conflicts from cultures past, present, all over the world.
Increase Aesthetic sense:
Teaches Empathy.
Creates Strong Communication
Demands Creative Thinking
Builds Teamwork and Collaboration
Relieves Stress.
Ridiculously Low Cost.
Easy to Integrate.

CONCLUSION

Theatre in education programmes are designed to maximize pupils’ learning and cater for a variety of pupils’ preferred learning styles. Based on Fleming’s VARK (Visual, Aural, Read/write, and Kinesthetic) learning style directed pedagogy to ensure maximum engagement and retention of messages, TIE programmes combine contemporary technologies with tried and tested drama based communications to connect, inspire and change young people’s attitudes and behavior. New TIE production sets incorporate a back projected media screen which is used to ensure a multi-sensory learning experience that maximizes pupil learning and supports delivery of key learning objectives. We can conclude that theatre practice is an essential entity in teaching learning environment.