Who deserves what kind of education Essay Example | Topics and Well Written Essays - 250 words

Who deserves what kind of education - Essay Example These inequivalences have never been explained to this day. Sato and Lensmire (2009) state that underprivileged (poverty-stricken) children are usually stereotyped as inferior students in that their conditions may hinder their learning and they are termed as less-worthy learners. This should not be the case and that is why teachers are today being trained to cater for children of all social classes. The strategies applied include treating all learners as equal, bridging school and home experiences, and connecting between lived sociocultural realities and academic abstractions. Collectively, the idea here is to provide the best (and normal) education to everyone regardless of their social class. Jean Anyon conducted a research on students in five elementary schools to tell whether there was a relationship between social class and the type and level of literacy attained at school. Five elementary schools were evaluated, each set in contrasting social class communities. According to the findings, it was revealed that depending on a school’s social class, the children differed with regards to their symbolic and physical capital, the process of work, and finally, authority (Anyon, 1981). This revelation, therefore suggested the need to maintain uniformity in education (literacy) settings to prevent this bias. Finally, education has been defined by many scholars as a â€Å"banking† process in that learners are taught through narration. This means that they ingest whatever the teacher (banker) provides them without any thinking process involved. According to Freire (1970), such education minimizes the learner’s creative and problem-solving power. In its place, Freire recommends problem-posing education which is more engaging in that the learner is taught how to solve a problem but they are not filled with the solutions. Concisely, this type of education is better at unveiling or

Bioethanol: Not a Viable Alternative :: Ethanol is Not the Solution

The world has begun to realize the importance of finding sustainable, renewable forms of energy. One of the most highly prioritized forms of energy is liquid, so that we can begin to manage our dependency on fossil energy. In the midst of this search, ethanol, a fuel additive which can be utilized in a variety of vehicles has become a popular alternative to fossil fuel. Many view Ethanol as the fuel of the future. Bioethanol, which is currently the most prominent type of ethanol, is made from the fermentation process of crops such as sugar or corn. This can be done in two ways, through dry or wet milling, the main difference between the two being that in dry milling the grains are mashed together, while in wet milling they are soaked in water for 24-48 hours before the process begins. Both of these processes generate C02 emissions; however the C02 is generally captured and used for other things(1). Many nations, with the United States and Brazil leading in production, have begun to use Ethanol fuel as a renewable liquid energy source. Over the past six years ethanol production in the United States has nearly quadrupled, and the government is spending over three billion dollars in subsidies for the industry(1). However many people believe that the numerous drawbacks of actually producing and utilizing Ethanol outweigh these benefits, and that we should divert our attention and funding towards more viable renewable resources. The benefits of ethanol fuel seem to be fairly straightforward. The most popular reason cited for using bioethanol is that because it contains a high level of oxygen it is more clean burning than straight gasoline. According to some estimates "ethanol use in the U.S. reduced CO2-equivalent greenhouse gas emissions by approximately 7 million tons", and is expected to reduce emissions by 1.7 billion tons by the year 2050(2). Such a dramatic reduction of ozone forming materials helps to improve air quality in cities where the fuel is used. Ethanol also does not contain many of the toxins that fossil based gasoline does, making it more biodegradable and safer in the instance of a spill(3). Additionally corn-based fuels are renewable, we have the capabilities to grow large amounts of corn, whereas we cannot produce anymore fossil energy and are limited by the supplies that we already have. The idea that ethanol is a clean burning, renewable resource sounds lovely in theory, however in practice Ethanol isn't particularly sustainable.

Concepts of Electrostasis

Why do you suppose this is so? -Outer electrons are loosely bound with the nucleus because of their larger distance from the nucleus, so they can be easily stripped off. In the case of the inner electrons, the opposite is true. They are more tightly bound because their closer to the nucleus, so they are more difficult to remove them. 52) You are not harmed by contact with a charged metal ball, even though its voltage may be very high. Is the reason similar to why you are not harmed by the rater than 1 ICC sparks from a Fourth of July sparkler? Defend your answer in terms of the energies that are involved. Yes. The reason is similar, because the amount of energies involved in both cases is very small. Chapter 23: Electric Current 46) In the circuit shown, how do the brightness's Of the identical lightships compare? Which bulb draws the most current? What will happen if Bulb A is unscrewed? If Bulb C is unscrewed? -The brightness of Bulb A and Bulb B will be the same, while Bulb C will be twice as Bulbs A or B. Bulb C draws the most current. When Bulb A is unscrewed, Bulb C will glow as it had and Bulb B will not glow. If Bulb C is unscrewed, Bulb A and Bulb B will glow at the same brightness.Chapter 24: Magnetism 15) One way to make a compass is to stick a magnetized needle into a piece of cork and float it in a glass bowl full of water. The needle will align itself with the horizontal component of Earth's magnetic field. Since the north pole of this compass is attracted northward, will the needle float toward the north side of the bowl? Defend your answer. -The needle will point toward the northward direction; however, it will not eve towards the northward side since the forces acting on the needle balances each other Out, remaining at rest. 3) In a mass spectrometer, ions are directed into a magnetic field, where they curve and strike a detector. If a variety of singly unionized atoms travel at the same speed through the magnetic field, would you expect them a ll to be deflected by the same amount, or would different ions be bent different amounts? Defend your answers. -Deflection of ions by magnetic fields solely depends upon their charge/ mass ratio. This is different for different ions. Chapter 25: Electromagnetic Induction 2) A certain simple earthquake detector consists of a little box firmly anchored to Earth.Suspended inside the box is a massive magnet that is surrounded by stationary coils of wire fastened to the bode. Explain how this device works, applying two important principles of physics-?one studied in Chapter 2 and the other in this chapter. -When an earthquake occurs, stationary coils inside the detector begin to vibrate and a relative motion between the coils and magnets is generated. The motion of the coils induces voltage into the coils. As a result, the intensity of the earthquake is recorded. ) A length of wire is bent into a closed loop and a magnet is plunged into it, inducing a voltage and, consequently, a current in the wire. A second length of wire, twice as long, is bent into two loops of wire, and a magnet is similarly plunged into it. Twice the voltage is induced, but the current is the same as that produced in the single loop. Why? -The voltage induced is directly proportional to the number Of loops Of the wire. Resistance is directly proportional to the length of the wire as long as all other parameters are constant in the formula R=PL/A.The second wire has wise the length and twice the number of turns than the first wire. 43) The metal wing of an airplane acts like a â€Å"wire† flying through Earth's magnetic field. A voltage is induced between the wing tips, and a current flows along the wing but only for a short time. Why does the current stop even though the airplane contain use flying through Earth's magnetic field? -The current stops even though the airplane continues to fly through the Earth's magnetic field, because the losses which occurred when a motor operates a gen erator and when the voltage is stepped up by a transformer is not considered.After the completion of each cycle, the energy outputted decreases due to the losses in the motor, the generator, and the transformer. Therefore, this will stop. Chapter 32: The Atom and the Quantum 6) Why does classical physics predict that atoms should collapse? -According to classical physics, an accelerated charged particle emits radiation. An electron that is orbiting the nucleus should radiate energy and move into a spiral path that ends at the nucleus. Therefore, atoms should collapse from a classical physics description. 28) When and where do Newton's laws of motion and quantum mechanics overlap?When the size of the system is very large compared to the De Brogue wavelength, the Newton's laws of motion and quantum mechanics overlap. Chapter 33: The Atomic Nucleus and Radioactivity 16) Two protons in an atomic nucleus repel each other, but they are also attracted to each other. Explain. -Two protons i n an atomic nucleus repel each other and also attract each Other, because of Coulomb Repulsion. The protons repel each other; however, due to a strong nuclear force, they also attract each other. 47) Why is carbon dating ineffective in finding the ages of dinosaur bones?

The Monsoon Cycle Defined

Every summer, southern Asia and especially India, is drenched by rain that comes from moist air masses that move in from the Indian Ocean to the south. These rains  and the air masses that bring them  are known as monsoons. More Than Rain However, the term monsoon refers not only to the summer rains but to the entire cycle that consists of both summer moist onshore winds and rain from the south as well as the offshore dry winter winds that blow from the continent to the Indian Ocean. The Arabic word for season, mawsin, is the origin of the word monsoon due to their annual appearance. Although the precise cause of the monsoons is not fully understood, no one disputes that air pressure is one of the primary factors. In the summer, a high-pressure area lies over the Indian Ocean while a low exists over the Asian continent. The air masses move from the high pressure over the ocean to the low over the continent, bringing moisture-laden air to south Asia. Other Monsoon Areas During winter, the process is reversed and a low sits over the Indian Ocean while a high lies over the Tibetan plateau so air flows down the Himalaya and south to the ocean. The migration of trade winds and westerlies also contributes to the monsoons. Smaller monsoons take place in equatorial Africa, northern Australia, and, to a lesser extent, in the southwestern United States. Almost half of the worlds population lives in areas affected by the monsoons of Asia and most of these people are subsistence farmers, so the coming and goings of the monsoon are vital to their livelihood to grow food to feed themselves. Too much or too little rain from the monsoon can mean disaster in the form of famine or flood. The wet monsoons, which begins almost suddenly in June, are especially important to India, Bangladesh, and Myanmar (Burma). They are responsible for almost 90 percent of Indias water supply. The rains usually last until September.