Advantages And Disadvantages Of Renewable Energy Environmental Sciences Essay

Advantages And Disadvantages Of Renewable Energy Environmental Sciences Essay This work will represent opinions and thoughts of different scientists, sociologists and politics related to the most discussing topic now days, renewable sources of energy. Lets go back in time hundred thousand years ago when our yet not developed ancestors noticed that fire can be used in many purposes. It was the first energy source. Fossil fuels are the main representative of non-renewable energy group and wind, water, solar power is renewable group, because they are unlimited and can be easily recycled. Major concern in the world is that fossil fuel usage produce dramatically huge emission. President of the United States claimed in his speech to United Nations that Were investing billions to capture carbon pollution so that we can clean up our coal plants(President Obama, 2010). Many debates have occurred since people started to think about future and became threatened that fossil fuels can just go out of stock one day, more over such things as wind miles, solar power panels wer e represented to the world, so the solution is already exist for problem of pollution and destroying environment due to the incredible industrial consumption of energy. However economical question has arisen. This type of technologies is very expensive now, but on other hand the price on them would never be reduced without using it. At present days it is possible to see how this usage of these technologies started to accelerate. Many people and different companies started to apply green energy technologies in their life. For example here in Dubai 80% of the water heated ether by natural sun light, heating the tank on the roof or again by the power of sun light but now, recycled in to the pure electric energy using solar power panels installed on the top of the roof. Consequence of this is that emission made to the air is reduced, in addition once this panel is installed company or person can save money because it has its own resource of hot water. However there is a bad side of any good. Wind mile is dependent on wind and solar power is dependent on sun. Yet it is decidable question which can easily be solved by accumulating energy in battery packs in case of emergency, or transferring energy from sunny and windy regions to others. How sad president of Russia Medvedev: The environment and the economy do not contradict each other. A properly functioning economy is an environmentally friendly economy. (President Medvedev, 2010) WIND POWER The most important characteristic that determines the energy value of wind it is speed. Due to a number of meteorological factors (disturbance of the atmosphere, changes in solar activity, the amount of heat energy reaching the Earth, and other causes) and also due to the influence of relief conditions continuous duration of the wind in the area, its speed and direction vary randomly. Therefore, the power that can produce wind-setting at different times, one can predict with a very low probability. At the same time, the total production of the unit, especially over a long period of time can be calculated with high accuracy, since the average wind speed and frequency of the velocity distribution within a year or season change little. Airflow, as well as any moving body, has the energy of motion, or the reserve of kinetic energy. The latter with wind turbine or other working body is transformed into mechanical energy. Depending on the purpose of wind turbine mechanical energy by means of actuators (generators, compressors, electrolytic, etc.) can be converted into electricity, heat or mechanical energy, as well as the energy of compressed air. The principle of wind power is simple: the wind turns the blades of a windmill, driving the shaft generator. The generator in turn produces electrical energy. It turns out that wind power work, how toy cars on batteries, only the principle of their action is opposite. Instead of converting electrical energy into mechanical energy, wind energy is converted into electrical current. SOLAR POWER Solar energy the use of sunlight to generate energy in any form. Solar power uses a renewable source of energy and the potential to become environmentally friendly that is not generating hazardous waste. The advantages of using solar energy: 1) Accessibility and inexhaustible source (the sun). 2) Theoretically, the complete security to the environment (but currently in production of solar cells and in themselves harmful substances are used). Now solar energy is widely used in cases where the inaccessibility of other energy sources combined with an abundance of solar radiation justifies its cost. Sun. Source of life and hard killer, giving the chance to be born and grow up every living organism on Earth for several billion years. Seriously about technology taming of sunlight people began to think only in the last century. Currently, solar power plants are built mainly of two types: Solar power tower and solar power distributed (modular) type. In the solar power tower central receiver used with a field of heliostats, provides a degree of concentration in a few thousand. System for tracking the sun is much more complicated since it requires rotation around two axes. The system is controlled by the computer. As a working body in the heat engine is commonly used steam temperatures up to 550  ° C, air and other gases up to 1000  ° C, low-boiling organic liquids (including freon) up to 100  ° C, liquid metal coolant up to 800  ° C. DISADVANTAGES OF RENEWABLE ENERGY Solar power: Because of the relatively small magnitude of solar constant for solar energy requires the use of large areas of land for power plants (for example, 1-GW power plants it could be several tens of square kilometers). However, this drawback is not so great (for example, hydropower output from the use of much larger tracts of land). In addition, photovoltaic cells on the large solar power plants installed at a height of 1,8-2,5 m, which allows the use of land for power plants for agricultural purposes, such as for grazing. The problem of finding large areas of land for solar power is solved in the case of the solar balloon stations, suitable for both terrestrial and maritime and for high-rise home. The flow of solar energy on Earths surface is strongly dependent on latitude and climate. In various places the average number of sunny days per year can vary greatly. Technical problems: 1) Solar power does not work at night and not effectively work in the morning and evening twilight. The peak power consumption falls on the evening. In addition, power plants can dramatically and unexpectedly fluctuate because of changing weather. 2) The high cost of solar cells. Probably with the development of technology will overcome this shortcoming. In 1990-2005 prices for solar cells decreased on average by 4% a year. 3) Lack of efficiency of solar cells. 4) The surface of the graphic panels should be cleaned from dust and other contaminants. With their area of à ¢Ã¢â€š ¬Ã¢â‚¬ ¹Ãƒ ¢Ã¢â€š ¬Ã¢â‚¬ ¹several square kilometers of it can cause difficulties. 5) The efficiency of photovoltaic cells decreases significantly when heated, so there is a need to install cooling systems, usually water. 6) After 30 years of operation, the efficiency of photovoltaic cells begins to decline. Wind power: Wind energy plants produce two types of noise: Mechanical noise noise from the operation of mechanical and electrical components (for modern wind power is virtually absent, but is significant in the older models of wind turbines) Aerodynamic noise the noise from the interaction of wind flow with the blades installed (amplified during the passage of blades past the tower of wind turbines) In the vicinity of wind turbines in the axis of wind turbine noise level are sufficiently large wind turbines can exceed 100 dB. An example of such design errors is a wind turbine Grovian. Because of the high noise level setting worked about 100 hours and was dismantled. Laws adopted in the UK, Germany, the Netherlands and Denmark, restrict the noise level of running wind power plant of up to 45 dB in daytime and 35 dB at night. Minimum distance from installation to homes 300 m. Low frequency vibrations transmitted through the soil, causing significant jitter windows in homes at a distance of 60 m from the megawatt-class wind turbines. Population of bats living near the wind farm on the order of magnitude more vulnerable than the population of birds. Near the ends of turbine blades, a region of reduced pressure, and a mammal which has got into it, gets barotraumas. Over 90% of the bats found near wind turbines find signs of internal hemorrhaging. According to the explanation of scientists, the birds have a different structure of the lungs, and therefore more resistant to sudden changes in pressure and suffer only from a direct collision with the blades of wind turbines. In contrast to conventional thermal power plants, wind farms do not use water that can significantly reduce pressure on water resources. Metallic structures wind turbines, especially items in the lobes, can cause significant interference to radio reception. The larger the wind turbine, the more noise it can create. In some cases, to solve the problem have to install additional repeaters. CONCLUSION Undeniable role of energy in maintaining and further follows the development of civilization. In modern society it is difficult to find at least one area of à ¢Ã¢â€š ¬Ã¢â‚¬ ¹Ãƒ ¢Ã¢â€š ¬Ã¢â‚¬ ¹human activity sequence, which is not required to directly or indirectly tively more energy than it can give a human muscles. During the existence of our civilization many times a change of traditional energy sources for new, more sophisticated. And not because the old source was exhausted. The sun shone and warmed man always: and yet once people have tamed the fire began to burn wood. Then the wood has given way to the stone coal. Timber resources seemed limitless, but steam engines required more nutritious food. But this was just a stage. Coal will soon yield its leadership in energy markets petroleum. And here is a new milestone in our days leading fuels are still oil and gas. But for every new cubic meters of gas or a ton of oil to go farther north or east, dig deeper into the ground. It is no wonder that oil and gas will be from year to year cost us all more expensive. In pursuit of an excess of energy a person deeper into elemental world of natural phenomena and to some pores are not really thought about the consequences of their deeds and acts. But times have changed. Now new significant step the earths energy. There was energy, gentle. Constructed so that people do not cut down the branch on which it sits. Concerned about the protection of already heavily damaged biosphere. Undoubtedly, in future, in parallel with a line of intensive energy development will have extensive rights of citizenship and an extensive line of: non-point sources of energy are not too much power, but with high efficiency, environmentally friendly, easy to handle. Energy accumulates very quickly, assimilates and incorporates all the newest ideas, inventions and scientific achievements. This is understandable: energy is associated with literally everything, and all drawn to power, depends on it. Labyrinths of power. Mysterious passages, narrow, winding trail. Full of puzzles, obstacles, unexpected insights, wailing grief and losses, joys and triumphs of clicks. Thorny, is not easy, continuous energy path of humanity. But we believe that we are on the way to an era of energy abundance, and that all the hurdles, obstacles and difficulties will be overcome. The story of energy may be infinite, innumerable alternative forms of its use, provided that we have to develop that are effective and economical methods. Not so important, what is your opinion about the needs of energy, sources of energy, its quality, and cost? We probably should just accept the fact that the scientist said the sage, whose name remains unknown: There are no simple solutions, only intelligent choices.

computers and life :: essays research papers

Life in a modern technologhy requires skills in dealing with computers...CH 8 Network Management. 8.1 Network Documentation. *Cut sheet diagrams. The first and most critical component for a good network is documentation. Documentation is the most talked about and least performed task in a network. à ¯Ã¢â‚¬Å¡Ã‚ · diagrams that indicate the path of the physical wiring layout; à ¯Ã¢â‚¬Å¡Ã‚ · the type of cable; à ¯Ã¢â‚¬Å¡Ã‚ · the length of each cable; à ¯Ã¢â‚¬Å¡Ã‚ · the type of termination for the cable; à ¯Ã¢â‚¬Å¡Ã‚ · physical location of each wall plate or patch panel, and; à ¯Ã¢â‚¬Å¡Ã‚ · A labeling scheme for easy identification of each wire. * MDF and IDF layouts This is a Physical and logical layout of the Main Distribution Facility and all of the Intermediate Distribution Facilities in the network, layout of rack mounts, auxiliary equipment, and servers in the distribution facility, patch panel labels to identify cable terminations. Identification and configuration details of all equipment located in the distribution facility. *Server and workstation configuration details This is any physical detail of the computer, model and serial number, Physical location, user, and network identification. *Software listings Standard and special software used on each machine in the network. This list includes operating system and application software. *Maintenance records It is also valuable to keep a list of all repairs that have been done to all equipment included in the network. This will help an administrator predict possible future problems with existing hardware and software. *Security measures Includes "soft" security, such as user rights, password definition, and firewall support, but also physical security. Physical or hard security includes things as simple as identifying how the MDF and IDF's are locked, who has access to these rooms and why, how the hosts are protected (security cables - alarms), and who has physical access to the system. *User policies They contain how the users can interact with the network. These policies include what is and what is not permissible on the network. It should also include what the consequences of violating user policies will be. Other aspects of user policies include what minimum user ID and password length should be, and rules for the content of passwords. 8.2 Network Security includes the following. * Network access It involves making the network as secure as possible against unauthorized access. This is done by establishing security policies, such as minimum password length, maximum password age, unique passwords (not allowing the same password repeated), and only allowing the user to logon to the network at particular times of the day or days of the week. computers and life :: essays research papers Life in a modern technologhy requires skills in dealing with computers...CH 8 Network Management. 8.1 Network Documentation. *Cut sheet diagrams. The first and most critical component for a good network is documentation. Documentation is the most talked about and least performed task in a network. à ¯Ã¢â‚¬Å¡Ã‚ · diagrams that indicate the path of the physical wiring layout; à ¯Ã¢â‚¬Å¡Ã‚ · the type of cable; à ¯Ã¢â‚¬Å¡Ã‚ · the length of each cable; à ¯Ã¢â‚¬Å¡Ã‚ · the type of termination for the cable; à ¯Ã¢â‚¬Å¡Ã‚ · physical location of each wall plate or patch panel, and; à ¯Ã¢â‚¬Å¡Ã‚ · A labeling scheme for easy identification of each wire. * MDF and IDF layouts This is a Physical and logical layout of the Main Distribution Facility and all of the Intermediate Distribution Facilities in the network, layout of rack mounts, auxiliary equipment, and servers in the distribution facility, patch panel labels to identify cable terminations. Identification and configuration details of all equipment located in the distribution facility. *Server and workstation configuration details This is any physical detail of the computer, model and serial number, Physical location, user, and network identification. *Software listings Standard and special software used on each machine in the network. This list includes operating system and application software. *Maintenance records It is also valuable to keep a list of all repairs that have been done to all equipment included in the network. This will help an administrator predict possible future problems with existing hardware and software. *Security measures Includes "soft" security, such as user rights, password definition, and firewall support, but also physical security. Physical or hard security includes things as simple as identifying how the MDF and IDF's are locked, who has access to these rooms and why, how the hosts are protected (security cables - alarms), and who has physical access to the system. *User policies They contain how the users can interact with the network. These policies include what is and what is not permissible on the network. It should also include what the consequences of violating user policies will be. Other aspects of user policies include what minimum user ID and password length should be, and rules for the content of passwords. 8.2 Network Security includes the following. * Network access It involves making the network as secure as possible against unauthorized access. This is done by establishing security policies, such as minimum password length, maximum password age, unique passwords (not allowing the same password repeated), and only allowing the user to logon to the network at particular times of the day or days of the week.

Good Manger

Chapter 1 Summary Laura Chase is killed instantly in a car accident. Laura's sister must go to the morgue to identify the body, and readers are given an idea of the woman Laura's sister is. She is careful, deliberate, and knows that she must dress appropriately in case newspaper reporters are nearby. She must do anything fitting her position as the wife of Mr. Richard E. Griffen. Especially since the car in which Laura Chase died belonged to Mrs. Richard E. Griffen.Laura's sister decides to wear black, of course, and she must also wear gloves, a veil, and should bring a handkerchief. When Laura's sister opens a drawer in her dressing room, she comes across a stack of school examination notebooks that have been bound in kitchen string. When she lifts the notebooks out, the shock of Laura's death hits her. Chapter 2 Summary Sub-Novel There are two main characters in the sub-novel: the man and woman. Clandestine meetings occur between them and the relationship is in its infancy. The wom an is described as â€Å"nervous. She is married but he is single. Details are dropped into the narrative like toppings on an ice cream sundae – the color of the woman's dress, the kind of tree that sits outside her bedroom window – and these things will be clues to the identities of the man and woman later on. Additionally, news clips, interspersed between vignettes, keep readers on a linear time path with the main novel. Also in this chapter are stories within stories. The woman and man meet several times and in varied places: over lunch, in a park, at night under a bridge.Chapter 3 Summary Main Novel It is June, 1998 and Iris Chase Griffen is about to present the Laura Chase Creative Writing Award to a graduating senior at Port Ticonderoga High School. Readers get to know Iris a bit better throughout the narrative. The death of her sister Laura, which she describes as being as close to a suicide as the word damn is to swearing, is an old wound that still bleeds. He r representation of the Chase family in the presentation of this monetary award is very difficult for her.Iris reminisces about her sister's life, how the story in the sub-novel created a town furor worthy of book banning, and how Iris has withstood the worst of this upset for the past 50 years. Yet, Laura is also seen as a genius taken in the prime of her life – a genius that Iris wears like a hair shirt. Chapter 4 Summary Sub-Novel The man and woman continue to meet in secret. At a cafe, she is uncomfortable because of the part of town in which it is located, and he is uncomfortable with the â€Å"fancy† way she is dressed.Their togetherness, for him, is about sex; their togetherness, for her, is about what is missing in her marriage: love and respect. The two of them leave the cafe and go to a room he is borrowing from a friend. It is threadbare, worn, and shabby. The woman is again uncomfortable in this environment but is so needy for what the man can give her that she stays. They make-love and he continues telling her the science-fiction tale about the residents of Sakiel-Norn. In another instance, at another time, the man and woman meet in a friend's apartment where they again make love, and again, he continues telling the story. Chapter 5 SummaryMain Novel This chapter volleys between present-day and the mid-1920s through the late 1930s in the history of the Chase family. Readers are permitted the chance to know Iris as an old woman and also get to know how Iris came to be that old woman. It is 1925 and Liliana Chase has died after the premature birth of her third child. Iris is saddled with caring for Laura and knows that it is going to be a full-time job. Even though Reenie acts in a motherly fashion toward both girls, it is Iris who tends to Laura's everyday needs. They must be each other's best friend, because they are not permitted to go off the grounds of Avilion alone.It is during this time that Iris tries to figure out why her moth er died as well as how to explain to Laura what happened to the â€Å"unfinished† baby t Chapter 6 Summary Sub-Novel The man and woman continue to meet in a variety of borrowed places: a dingy room, an opulent apartment and a janitor's storeroom in the basement of a building. The woman is clearly out of her element and comments so to herself while she goes to meet the man. She feels out of place in body and spirit: her clothes are too fancy, her walk is too refined and her attitude is too uptown for the downtown surroundings.However, she clearly loves this man, or certainly loves the image of him. He tries to appear nonchalant, but even he grows restless when he thinks she is not coming to meet him. Theirs is a relationship that starts out purely physical but melds into one of need. In addition, as the book continues, readers are left to wonder who this woman is: Laura or Iris? Chapter 7 Summary Main Novel More of Iris's mystery begins to unravel with the opening of Chapter 7 . She possesses a steamer trunk – one from her 1935 honeymoon trip to Europe with Richard Griffen – full of handwritten text and a couple of first edition books.It is hinted that Laura wrote these, but the question does arise: did Iris actually write stories, including the sub-novel? Many have written to Iris in hopes of interviewing her about her dead sister but she has steadfastly refused. She keeps the existence and contents of the steamer trunk a secret from the world. On a trip into Toronto to see her lawyer, Iris asks Walter to drive her past her old home – the one she shared with Richard as a newly married woman. It is still there, and now has tendrils of ivy fingering up the brickwork. Chapter 8 Summary Sub-Novel The man and woman continue meeting and telling each other stories.They debate over the ending of the story of the blind assassin and the tongueless girl. The woman wants a happy ending, where the two will live out their years together; the man w ould like to see everyone, including the lovers, annihilated. The storytelling between the man and woman is intellectual foreplay. At another rendezvous, the man tells a nicer story, at the urging of the woman. It is about the Lizard Men of Xenor and their coupling with women of Earth to create a super race. The woman tells the man that she is going away on the maiden voyage cruise of the Queen Mary.It is becoming clearer that the woman is Iris Griffen. Chapter 9 Summary Main Novel The elderly Iris is losing the battle all older people fight: to maintain independence at home. Iris's mind is still sharp but her body is letting her down. She cannot even do her own laundry in the basement without fearing she will fall and be hurt. Elderly Iris is also fighting off the ministrations of Myra who dotes on her as though she inherited her from her mother, Reenie. Myra means well but smothers Iris all the same. Her latest idea is to hire someone to clean Iris's house and do laundry for her.H owever, Iris does not want a stranger touching her underwear. It is the spring of 1936; the Civil War had begun in Spain, King Edward had abdicated the throne for the Duchess of Windsor, and Laura had headed off to school. T Chapter 10 Summary Sub-Novel The woman misses the man desperately and looks high and low for some sign of him; something to tell her that he is safe. She finds their story, The Lizard Men of Xenor, in a newsstand at a train station. She secretly sneaks it home and cherishes it as though he were reaching his hand out to her and her alone.Waiting for him to return from Spain seems interminable and, to pass the time, she imagines him imagining her. In her mind's eye, she sees him on trains, in stations and in diners. Her salvation is that he is on his way home to her, only her, and that he will soon emerge through the mist of a departing train to save her from her own life. Chapter 11 Summary Main Novel As the story progresses, readers are treated to little hints, tiny secrets here and there. Iris likes to visit the middle stall in the washroom of a local doughnut shop.That is where the best graffiti is written (including some about Laura) — and where she would like to add some of her own. She checks into that stall regularly to see what has been written there, as one would get a weekly update to a news item. Laura was sent to a different school — same temperament, different uniform — and plans were laid by Winifred for Laura's debut the following year when she turned eighteen. Laura grudgingly attended school but hated it. Once Laura started to be a bigger burden than Winifred wanted Richard to bear, it was decided that Laura should be married.Chapter 12 Summary Sub-Novel The man returns from the war in Spain and is greeted at the train station by the woman. Because he has not yet rented a room, they go to a seedy hotel to be alone together after such a long time apart. The room in the hotel is the worst place they have ever been together. It smells bad, the furniture is tacky and ripped and there is no fresh air. She tells him that she found The Lizard Men of Xenor and waited, impatiently, for the next episode so that she knew he was all right. She had worried about him dying in the war, and he tells her that nearly happened.Chapter 13 Summary Main Novel, the 1930s Just before World War II, Iris' marriage to Richard was getting worse. She had suffered two miscarriages and learned that Richard had enjoyed his share of mistresses. She assumed these dalliances were with his secretaries who were always very young and very pretty. They kept up marital appearances by going to parties and gatherings and Iris was grateful that Richard was no longer bothering her for marital obligations. Once World War II broke out, Richard and his business were in a bad place.He had been too friendly with the Germans prior to the war and stood to lose a lot of money. Following the end of the war, Iris receives a call from Laura. Back in Toronto, Iris sees Laura at Diana Sweets, one of Iris's favorite shops. Chapter 14 Summary Main Novel, the late 1940s Iris finds old school exercise books after Laura dies. In the mathematics book, there appears a long column of numbers with words opposite some of them. Iris recognizes the numbers as dates. The first date coincides with Iris's return from Europe and the last day was just a few months before Laura was sent to Bella Vista.Iris concludes that these are the dates Richard raped Laura. Iris was grateful that Laura had never seen Aimee because she would have known right away that Aimee was Alex Thomas's daughter and not Richard's. Iris keeps all of Laura's notebooks, bound together with string, plus other manuscript pages in the steamer trunk once used in her wedding trousseau. After Laura's funeral, Iris leaves Richard. She sends the steamer trunk out to Port Ticonderoga and then takes Aimee away while Richard is gone on business. Chapter 15 Summary Sub-No velIris is seen cherishing the photo of her and Alex Thomas at the Button Factory picnic that hot, humid Labor Day in the mid-1930s. The picture was of happiness, but the ensuing story was not. Just before her death, Iris has one last daydream. It is of reuniting with Sabrina, one in which Sabrina does not blame her for her fate. Sabrina calls Iris, comes to her house and sits with her. On May 29, 1999, Iris Chase Griffen dies at the age of 83. Shortly thereafter, Sabrina returns from traveling abroad to see to her grandmother's affairs

Essay about Vygotskys Zone of Proximal Development

Teaching is not just a matter of standing in front of a class and distributing knowledge to a group of learners. Teaching is a much more complex procedure that requires educators to consider a variety of educational components in order to maximize a learner’s true potential. Teachers are responsible for catering to the needs of a group of learners with a range of needs, and therefore have an obligation to meet the needs of learners with differing levels of ability, knowledge, understanding, pre-exposure and background using a variety of strategies including scaffolding. Teacher’s also need to consider the varying speed at which students learn, and then be able to provide for all learners regardless of their learning pace and ability as†¦show more content†¦al, 2011) Vygotsky believed that â€Å"instruction is only useful when it moves ahead of development.† (Leong, 1998) According to Morrissey and Brown, 2009 the improvements within the Zone of Proximal Development can be considered with regards to the rate or nature of the progress within the zone, such as whether the learner moves efficiently through a task. For example, when teachers consider a task such as group reading in the classroom, the teacher needs to analyse the needs and reading abilities of students so that they are grouped to read within their Zone of Proximal Development and therefore, the level of support is adjusted to meet the needs of the learners. (Ankrum, Genest and Bel Castro, 2014) Morrissey and Brown, 2009 also suggests that giftedness within children may advance their development in regards to their Zone of Proximal Development. ‘Scaffolding’ is a term used in education to describe the process of modelling and instructing learners to participate in the learning process without providing a direct answer to any given problem. Some techniques that can be included in the scaffolding process include direct explanation to the learner, explicit modelling of the concept being taught to theShow MoreRelatedVygotskys Zone of Proximal Development Essay633 Words   |  3 PagesA child is truly nurtured by those more wise than themselves. 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During our morning routine he enjoys workingRead MoreEDFE101 ASSESSMENT 3- MAJOR ESSAY How can Vygotsky’s notion of the ‘Zone of Proximal Development’,1400 Words   |  6 PagesEDFE101 ASSESSMENT 3- MAJOR ESSAY How can Vygotsky’s notion of the ‘Zone of Proximal Development’, and the related concept of ‘scaffolding’, be used to provide appropriate education and support to the full range of students in the classroom? The Zone of Proximal Development (ZPD) is a concept by Lev Vygotsky that provides appropriate education and support to the full range of students in the classroom. This concept requires teachers or ‘experts’ to assist students in achieving a higher level ofRead MoreVygotsky s Theory On Cognitive Development Essay733 Words   |  3 Pagesbelieved that in order for any learning to occur there had to development within the individual first, but Vygotsky argued the contrary. He argued that in order for development to occur, the individual would first have to have learning take place through instruction and example in a given appropriate environment. Vygotsky’s theory on cognitive development is centralized on two key ideas known as scaffolding and the zone of proximal development which will be explored in this essay and how they contributeRead MoreVygotsky - Zone of Proximal Development Essay example1322 Words   |  6 PagesHow can Vygotsky’s notion of the à ¢â‚¬ËœZone of Proximal Development’, and the related concept of ‘scaffolding’, be used to provide appropriate education and support to the full range of students in the classroom? Teaching is not just a matter of standing in front of a class and distributing knowledge to a group of learners. Teaching is a much more complex procedure that requires educators to consider a variety of educational components in order to maximize a learner’s true potential. Teachers are responsibleRead MoreVygotsky s Theories Theory Theories994 Words   |  4 PagesPSY112 Assignment #1 Devyn Crocker Vygotsky’s Theories Vygotsky’s theories jumped out at me because I thought that this was an interesting topic of choice.I am very interested in learning how children develop, not only in the classroom, but also outside the classroom. I was curious if a scientist believed that nurture is what helps children to learn and develop instead of just being born that way with nature. In my opinion, the way children are raised is the way they learn and develop their attitudesRead MoreEarly Childhood Course At Savannah Technical College Essay1662 Words   |  7 Pagesspectrum of early childhood, majority of the main focus was on early education. The work of Lev Vygotsky greatly influenced the field of early education. This paper will include a brief summary of Vygotsky’s life, a description of his major ideas, and how those ideas impact early education today. Vygotsky’s Life According to New World Encyclopedia (2014), â€Å"Lev Vygotsky was born was born in Orsha, Belarus (then Russian empire), into a well-to-do family of Jewish ancestry, on November 17 (NovemberRead MoreJean Piaget And Vygotsky And Language Development In Children1748 Words   |  7 Pagesthat there are four main stages in a child’s development that lead to a child learning language. Without these stages, Piaget argues that a child cannot cognitively grow at an appropriate pace (Kaderavek, 2105, p. 18 and p. 23). However, Vygotsky argues the Social Interactionist Theory, which states children develop language through social interacting with adults who are linguistically knowledgeable and the influence of the Zone of Proximal Development (Kaderavek, 2105, p. 18 and p. 23). With includingRead MoreLev Vygotsky Essay1668 Words   |  7 PagesThe psychology theorists of the past have shaped the classrooms of the present. There are many theorists that have affected the teaching sty les of today and a theorist that has had a major impact is Lev Vygotsky. Vygotsky’s work interests me much because his concepts and ideas encompass many of the ways in which teachers teach in today’s classrooms. The ideas he presented have contoured the strategies of teachers. It is interesting to look into the reasons why teachers have adopted some of theRead MoreVygotsky And The Social Development Theory743 Words   |  3 PagesLev Vygotsky and the Social Development Theory Born on November 17, 1896 in Orsha, Russia, Lev Vygotsky entered into a well-educated. (Ghassemzadeh, Posner, Rothbart, 2013, p. 293). Having a banker as a father, Vygotsky was given the privilege of private tutors while young. (Jones, 2003). He went on to study human development at Moscow University and Shanyavsky Open University, and later became a psychologist. (Cherry, n.d.). Vygotsky helped to create an approach to how the human mind is developed