Cognitive development Research Paper Example | Topics and Well Written Essays - 1250 words

Cognitive development - Research Paper Example Teachers can plan lessons effectively and create positive learning environments for their students if they are more cognizant of how people process, learn, and remember information (Blake & Pope, 2008). Piaget perceives learning process from a constructivism perspective, where people get to know through gradual stages by adapting to the environment, while Vygotsky believes that learning occurs through social interaction. As a teacher prepares to teach, there is need to balance the approaches of Piaget and Vygotsky given that learning is both a constructive process and a product of social interaction. Piaget holds the view that cognitive development happens through a series of schemes, which are basic building blocks of thinking. To Piaget, people make sense of the world and create knowledge from direct experiences with people, objects, and ideas. Additionally, the development of the thinking process is influenced by maturation, social transmission, activity and need for social equilibrium. These influences make thinking processes and knowledge develop via alterations in thought organization (schemes), adaptation, assimilation, and accommodation (Woolfolk, 2013, p. 57). It is the duty of the teacher to know what the learners can assimilate, meaning placing the environment in existing cognitive structures, and what they can accommodate, which means changing the cognitive structures to accept something in the environment (Blake & Pope, 2008, p. 61). The teacher must know the state of existing cognitive structures of the learners and their capability to change to be effective. On his part, Vygotsky holds that people’s mental structures and processes are attributable to social interactions with others. Vygotsky upholds the notion that scaffolding, which is the idea that children utilize the help of adults and peers to create a firm foundation that eventually allows them to deal with problems on their

Market structures Essay Example | Topics and Well Written Essays - 2750 words

Market structures - Essay Example Since the market power is equitably distributed among the sellers in this market who sell homogenous products the markets generally have a downward sloping demand curve. On the other hand the individual firm will face a horizontal demand curve as the price would be set by the market and it will be given to the individual seller. While the market equilibrium of a perfect competition would be at the point of intersection of the demand the supply curve, the individual firm will produce at the point where Marginal Cost curve cuts the Average cost curve from below. In this figure the firm will earn only normal profits as the firm has to supply the products in the market at the price which is equal to the cost of production of the company. Source: Arnold, 2013 Characteristics There is no barrier to entry or exit in this type of market. Any firm may easily come into the competitive scenario and may leave the market without having a major effect on the demand and supply in the market. The fi rms sell homogenous products which mean that the buyers would be indifferent between the sellers who offer the products in the market. ... Each of the firms has a single portion of the market share. The production will take place at the point where ATC curve is tangent to the market demand curve instead of the point where the MC curve cuts the ATC curve from below. Source: Arnold, 2013 Characteristics: The products sold in a monopolistic competition are a differentiated product which means they are not perfect substitutes of one another. The produces have some control over the market price and hence there is excess capacity in the process of production. The quantity produced would be less compared to that of perfectly competitive markets. Monopoly In a monopoly market there is a single seller and a large number of buyers. Since the entire market power is in the hands of the single seller the price is set above the price that is present in the perfectly competitive markets. The monopolist will produce at the point where MR is equal to MC. This is depicted in the diagram below. Source: Varian, 2010 Characteristics In case of a monopolist there is presence of excess capacity and the quantity produced is less than that of the competitive markets. There is high barrier to enter the monopolistic market is very high. Oligopoly An oligopolistic market is that which has a few sellers and a large number of buyers. The market power is distributed among the sellers of the markets. There may be different types of oligopolistic competition. While some firms may be fighting price competition the others would fight the quantity competition. Characteristics The firms in the oligopolistic markets are the price setters. The barriers to entry in this type of market are high. Answer 2 The market for fresh vegetables in the city is an example of perfectly competitive market. In this market there are a large number of