Monday, August 3, 2020

Need of Environmental Education

 

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ASSIGNMENT

 

NEED OF ENVIRONMENTAL EDUCATION

 

04-Aug-20

 

SREELAKSHMI A

 


 

ENVIRONMENTAL EDUCATION

Environmental education is a process that allows individuals to explore environmental issues, engage in problem solving, and take action to improve the environment. As a result, individuals develop a deeper understanding of environmental issues and have the skills to make informed and responsible decision.

 The components of environmental education are:

1.          Awareness and sensitivity to the environment and environmental challenges

2.          Knowledge and understanding of the environment and environmental challenges

3.          Attitudes of concern for the environment and motivation to improve or maintain environmental quality

4.          Skills to identify and help resolve environmental challenges

5.          Participation in activities that lead to the resolution of environmental challenges

Environmental education does not advocate a particular viewpoint or course of action. Rather, environmental education teaches individuals how to weigh various sides of an issue through critical thinking and it enhances their own problem-solving and decision-making skills.

The way natural environment works and how humans should behave to manage ecosystem to sustain environment is part of the environmental education. It imparts the required skills and expertise to handle the associated challenges. The main focus of the study is to impart knowledge, create awareness, inculcate an attitude of concern and provide necessary skill to handle the environment and environmental challenges.

Environmental Education gained importance at global level after the Stockholm Conference on Human Environment, organized by UNESCO in 1972. Soon after this Conference, the UNESCO launched the International Environmental Education Program (IEEP).

 

Environment education does not mean mere acquisition of facts about environment. Rather, it means a positive change in affective domain towards environment.  The difference between environment education and environment information are listed below.

 

     Environmental Education

Env   Environmental Information

Increases public awareness and knowledge of environmental issues

Provides facts or opinions about environmental issues

Does teach individuals critical-thinking

Does not necessarily teach individuals critical-thinking

Does enhance individuals' problem-solving and decision-making skills

Does not necessarily enhance individuals' problem-solving and decision-making skills

Does not advocate a particular viewpoint

May advocate a particular viewpoint

 

 

NEED OF ENVIRONMENTAL EDUCATION


Environment is degrading at a much faster pace than our imagination. Most of this mess is caused by human activities. The damage is both at global and regional level. Depletion of ozone layer and increase in the emission of greenhouse gas are the examples of the damage at global level whereas groundwater pollution, soil erosion are some of the regional consequences of human activities and their impact on environment.

Therefore whatsoever wrong has been done by us must be rectified by us only. To protect and manage environment it is imperative to have a sound environmental education. It is a way to teach people and societies on how to use the present and future resources optimally. Through environmental education they can gain knowledge to handle the fundamental issues leading to local pollution.

 

Every country is putting efforts to integrate environmental concerns with education. According to these countries, EE should not only be a part of the education system but also the political system where actions, policies and plans can be formulated and executed at national level.

 

Environmental education must be able to assess environmental situation and the conditions leading to the damage of the environment. EE must target the routine and how simple changes in a daily life can make a huge difference to the environment.

 

Protecting environment is the responsibility of everyone, hence environmental education cannot be confined to one group or society. Every individual must be prepared for saving the environment. It must be a continuous and a lifelong process. Above that environmental education must be practical so that teachings can be implemented directly.

 

Conserving nature and environment will be much easier if children are taught about depleting resources, environmental pollution, land sliding and degradation and extinction of plants and animals. Education is a sort of investment that turns into a valuable asset over a period of time.

 

Universities in India focus on teaching, research and training. In more than 20 Universities, different colleges and institutes courses in Environmental Engineering, Conservation and Management, Environmental Health and Social Sciences are taught.

 

To promote environmental awareness across the Nation, the Centre for Environment Education (CEE) was established in August 1984 with a support from the Ministry of Environment and Forests, Government of India. One of the tasks of the CEE is to put efforts to give due recognition to the role of environmental education. The CEE runs many Educational Programs in this regard.

 

Because of the societal shifts, today’s children are busy playing indoor games and electronic gadgets. They spend most of their time in watching Television, listening to music, playing video games or surfing Internet or using Computer. They have no time to travel around and to explore the natural world around them. This not only impacts the health of children but also detach them from their surroundings and nature. They are grown up into adults who are least bothered about conserving nature. Raising an environmentally educated generation is  also necessary because of the depleting of natural resources.

 

Students must be encouraged to understand their surroundings and a framework for action plan must be formulated. EE is the need of the day. It must encourage social participation. Hence integrating environment education into a curriculum is a wise option to connect students with the nature right from their childhood.

Environmental education is a process that aims at the development of environmentally literate citizens who can compete in global economy, who have the skills and knowledge and inclinations to make well informed choices concerning the environment, and who exercise the rights and responsibilities of the members of a community. Environmental knowledge contributes to an understanding and appreciation of the society, technology and productivity and conservation of natural and cultural resources of their own environment.

              Environmental education has an ability to solve the societal needs, the needs of a community problem and their solutions and workforce for tackling cooperative minds. We need the school children to share and develop the motivation from school about various environmental issues, which are the challenges of today and prepare them for the future.

              Environmental education must become a vehicle for engaging young minds in the excitement of first hand observation of the nature and understanding the patterns and processes in the natural and social worlds in order to take care of the habitat and its surroundings which becomes a major part of EE in both primary and upper primary stages of school education. In the secondary and senior secondary stages also some of the major issues such as environmental protection, management and conservation are to be dealt in more detail.

Primary stage

Environmental education is need in primary levels to provide following knowledge.

• Familiarization with one's own body

• Awareness about immediate surroundings;

• Need for food, water, air, shelter, clothing and recreation;

• Importance of trees and plants;

• Familiarization with local birds, animals and other objects;

• Interdependence of living and non-living things;

• Importance of cleanliness and sanitation;

• Importance of celebration of festivals and national days;

• Awareness of sunlight, rain and wind;

• Caring for pet animals;

• Awareness about air, water, soil and noise pollution;

• Need for the protection of environment;

• Knowledge about the source of energy;

• Importance of the conservation of water resources and forests and

• Indigenous and traditional knowledge about the protection of environment.

The textbooks lay emphasis on raising awareness levels and sensitizing children about environmental concerns. Emphasis has also been laid on the need to organize learning in local specific contexts, which will provide more meaningful experiences to children. Aspects of indigenous knowledge have also been introduced. There are references and suggestions for conducting activities in and outside the classroom. The NCERT textbooks for environmental studies generally take a comprehensive view of the natural, physical, social and cultural environment.

It is evident that the textbooks represent relevant ideas commensurate with the age and developmental level of children so as to provide them the necessary understanding about their immediate environment. However, there is a scope for inclusion of more activities to enable children to translate awareness into effective behavioral action.

 

Upper Primary stage

The contents of environmental education taught in upper primary level is an extension and elaboration of the concepts introduced at the primary stage. Environmental education is provided at upper primary levels to provide following knowledge.

• Adaptation of living beings in environment

• Natural resources

• Water cycle

• Food chain

• Importance of plants and trees in keeping the environment clean

• Classification of plants

• Role of plants and animals in environmental balance and soil conservation

• Ecosystems

• Necessity of clean air for healthy living

• Animals and their characteristics

• Effects of environmental pollution and the consequences of air pollution-(i) Greenhouse effect, (ii) Ozone layer depletion and, (iii) increase in carbon dioxide

• Role of microorganisms in the environment

• Dependence of the community on the environment

• Basic knowledge about the Earth and its atmosphere

• Physical features of the country

• Population and environment

• Care and protection of livestock

• Necessity of wildlife protection

• Impact of deforestation

• Impact of industrialization on environment and

• Role of civic society in protection of the environment, personal and public property including monuments.

While most of the areas of EE have generally been covered, there is a need for the inclusion of more individual and group activities and project work in order to promote both the effective and cognitive domains of learning. Co-scholastic activities including organisation of plays, cultural programs, debates, mock parliament, discussions and community activities may help further in achieving the objective.

SECONDARY STAGE


The concepts of EE have been provided in the textbooks of science and social sciences physical science, biological sciences and geography. The environmental concepts here taught are at concrete and abstract levels. The concepts covered are:

• Biosphere

• Greenhouse effect

• Ozone layer depletion

• Use of fertilisers and pesticides

• Wildlife protection

• Soil chemistry

• Management of domestic and industrial waste

• Pollution of noise, air, water ad soil and control measures

• Ecosystem

• Management of non-degradable substances

• Edible and ornamental plants

• Sewage disposal and cleaning of rivers

• Nuclear energy

• Radiation hazards

• Gas leak

• Wind power

• Bio-energy and

• Environmental laws and acts.

• Environmental concepts also extend to subject areas like languages and social sciences, which reinforce learning and internalization of all such concepts.

Higher Secondary Stage

This is the stage of diversification. Students opt for either the academic stream or the vocational stream. The treatment of concepts becomes deeper and more discipline oriented since the content caters to the demands of the concerned subject, as an independent discipline a comprehensive view about EE is not available in the textbooks. Majority of the concepts are found in the textbooks of biology, chemistry and geography, which are optional subjects. Students opting for any one of these subjects would accordingly benefit in different aspects of EE.

The coverage of EE concepts in the textbooks of various subjects includes:

• Environment and sustainable development;

• Atmospheric pollution- global warming,

• Greenhouse effect,

• Acid rain,

• Ozone layer depletion;

• Water pollution- international standards of drinking water,

• Importance of dissolved oxygen in water,

• Bio-chemical oxygen demand,

• Chemical oxygen demand,

• Land pollution,

• Pesticides,

• Ecology.

CONCLUSION

School is second home of learning after home. A child is introduced to a new environment and began to develop his social life by contact in a situation where he meet parental like care by his teacher and homely friends of School inmates. A lots of strange activities start take place in child's life and begin to grow with what he sees and learned in school.

Environmental studies as a subject must lead pupils from their immediate perception and experience to a wider understandings. It must develop their capacity to go beyond the anecdotal and the particular. Non of that happen by chance. School curriculum and subject contents deal with is an interplay between child and his environment.

Providing environmental studies through different subjects give insight to the child. Pupils must learn about many phenomena in order to understand complex environmental aspects within our own specific limit.

Environment is for our children's future, hence, concrete foundation to visualize the eminent future for upcoming generation, what need to be done to reduce the damages we do to it, what opportunity and feasible there in for improving the quality of our environmental conditions to coup with practical solution. Pupils should draw on what they learn at school and discussed.

 


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.

 

10krnaz01-barap11kibarapoljpgjpg.jfif

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.

download.jfif


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

wss-ws-hydro-typical-powerplant.gif


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.
wss-wu-hydropower-turbine-diagram.jpg
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.

wss-wu-hydropower-pumped-storage-diagram.gif

 

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.

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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