Wednesday, January 29, 2020

Stereotypes in the Classroom Essay Example for Free

Stereotypes in the Classroom Essay Page 1 â€Å"If Americans are to embrace diversity, the conscious and unconscious expressions of racism (sexism) within our society must be identified and done away with. † Teachers must prepare themselves and the children for the ever changing challenge of interacting and communicating with diverse races. Reduction of fear, ignorance, and personal detachment are possible benefits to a multicultural education ( (Wilson). Multicultural education is the potential catalyst to bring all races together in harmony. Educators today have a moral responsibility to move beyond the limits of racial context to a social context that embraces humanity without barriers and fear. The responsibility of teachers is to get to know the children and the families that will be entering the program. Classrooms need to reflect every child and every family in the class. Do not make assumptions of what a child’s ethnic background is. This is putting a stereotype as to what you think of that culture. Get to know the children so that you can respectfully and accurately reflect them, their families and their lifestyles in the classroom ( (York, 2003). Children should feel like they belong in the class. Teachers need to make sure that they greet each child by name as they enter the classroom at the beginning of the day and to say good bye at the end of the day. Teachers need to remember to stay away from commercial teaching materials. Cartoon imagines inaccurately portray human beings and human diversity (York, 2003). Multicultural children’s books can be used effectively as a means for coming to understand individual human stories, and the universal emotions and themes they contain. Teachers need to be careful when picking books to use in the classroom. A book may look good when you first look at it but it may contain one or more stereotypic images. Teachers need to be very critical in evaluating books that they want to use in the classroom. Make sure that authors are writing fiction for young children that authenticate a culture’s heritage. Wilson, K. (n. d. ). Multicultural Edcuation. Retrieved October 31, 2010, from Edchange: www. edchange. org York, S. (2003). Roots Wings Affirming Culture in Early Childhood Programs. Upper Saddle River: Pearson.

Tuesday, January 21, 2020

Genetic Haemochromatosis :: essays research papers

Genetic haemochromatosis is a disorder, which causes iron build up over time. Usually an adult has about 4 grams of iron in their body but with this disorder the amount of iron in the body is much higher, with the total amount of iron in the body reaching up to 20 to 40 grams if untreated. In Australia, haemochromatosis affects 1 in 200-300 people but it is most common in Australians whose ancestry is from Northern Europe or the United Kingdom. If haemochromatosis is left untreated, it leads to conditions such as:  §Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Cirrhosis of the liver  §Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Cardiomyopathy  §Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Diabetes To prevent these problems from developing, early diagnosis and treatment is needed. The treatment for this disorder is done by regularly extracting blood, from the same main vein, as the one that’s used for when a person donates blood. By doing this regularly, it reduces the high levels of iron in the blood so that it doesn’t get stored in various organs. People who are affected by haemochromatosis may show no symptoms at all. The symptoms of this disorder are more likely to develop in men aged between 40 and 60 years old and at a later age for women, although the disorder can be diagnosed much earlier. For this disorder, symptoms vary according to the organs involved. In the early years there may be no symptoms at all except for a healthy skin colouring that seems like a tan. Although early symptoms that occur in some people are:  §Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Weakness  §Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Weight Loss  §Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Lack of interest or concern  §Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Sexual drive  §Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Pain in the arms  §Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Muscle Tenderness  §Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Cramps in the legs Symptoms may occur earlier in men though because women lose blood during menstruation and childbirth causing the iron levels in the body to reduce. THE CAUSES OF HEREDITARY HAEMOCHROMATOSIS The gene most commonly involved in hereditary haemochromatosis is called the HFE gene. On the short arm of chromosome number 6 is where this gene is located. The HFE gene codes the protein that regulates iron absorption. When the HFE gene is faulty the message from the gene is also faulty causing the iron storage that regulates itself to fail. Two mutations, called C282Y and H63D, have been identified in the HFE gene. It appears to cause most of the cases of hereditary haemochromatosis. Being born with two faulty HFE gene copies does not actually have to mean that a person will definitely develop HH, it just means that they are more easily affected by hereditary haemochromatosis then others.

Monday, January 13, 2020

Observation and Gross Motor Skills

Observing a child can be a fascinating experience. It’s amazing to see how a child can view something so different than an adult. I recently observed my niece. Her name is Unique. She was born February 9, 2011, and is now two years and four months old. I observed Unique on June 4, 2013 from one until about three in the afternoon, at daycare with just her teacher present. After leaving daycare I continued to observe her for a few more hours once she got to her grandmother’s house, with her aunts present. Unique has one older brother and has just started daycare this year. Unique has amazing fine and gross motor skills, which is having a better control over her hand and finger movements; also having ability to control her arm and leg movements more. I watched her turn pages in her Dora book without any problem. As she finished looking through her book we scribbled together. Unique held the crayons perfectly, with both her thumb and her finger. I also watched Unique climb up and down off the sofa. We went outside for a few and I noticed how well she kicked the ball back and forth with her aunts that are ten and eleven. Unique gets together with daycare friends and begins to play games such as matching, coloring, going to play together outside. As they come together everyone is happy and enjoying their selves. I notice that everyone had a smile on their faces and in a good mood, everyone interacting in a good way, there wasn’t any negativity. When getting together with adults she can be very alert and outgoing. She repeats a lot of what is being said. Unique talks and listens to what is being told. Unique and teachers are in the classroom having learning time. Teachers ask questions and sing songs as she answer the questions and sing along. Cooperating and enjoying learning time with the other kids. These observations can tell a lot about Unique and her development in many areas. Her development in different areas is good and understanding. I would consider the way she interacts and acts with others appropriate for her age. She is advanced and gets along with others very well when doing things such as talking, playing and laughing with others.

Sunday, January 5, 2020

Neutralizing a Base With an Acid

When an acid and a base react with each other, a neutralization reaction occurs, forming a salt and water. The water forms from the combination of the H ions from the acid and the OH- ions from the base. Strong acids and strong bases completely dissociate, so the reaction yields a solution with a neutral pH (pH 7). Because of the complete dissociation between strong acids and bases, if youre given a concentration of an acid or base, you can determine the volume or quantity of the other chemical required to neutralize it. This example problem explains how to determine how much acid is needed to neutralize a known volume and concentration of a base: Solving an Acid-Base Neutralization Problem What volume of 0.075 M HCl is required to neutralize 100 milliliters of 0.01 M Ca(OH)2 solution? HCl is a strong acid and will dissociate completely in water to H and Cl-. For every mole of HCl, there will be one mole of H. Since the concentration of HCl is 0.075 M, the concentration of H will be 0.075 M. Ca(OH)2 is a strong base and will dissociate completely in water to Ca2 and OH-. For every mole of Ca(OH)2 there will be two moles of OH-. The concentration of Ca(OH)2 is 0.01 M so [OH-] will be 0.02 M. So, the solution will be neutralized when the number of moles of H equals the number of moles of OH-. Step 1: Calculate the number of moles of OH-.Molarity moles/volumemoles Molarity x Volumemoles OH- 0.02 M/100 millilitersmoles OH- 0.02 M/0.1 litersmoles OH- 0.002 molesStep 2: Calculate the Volume of HCl neededMolarity moles/volumeVolume moles/MolarityVolume moles H/0.075 Molaritymoles H moles OH-Volume 0.002 moles/0.075 MolarityVolume 0.0267 LitersVolume 26.7 milliliters of HCl Performing the Calculation 26.7 milliliters of 0.075 M HCl is needed to neutralize 100 milliliters of 0.01 Molarity Ca(OH)2 solution. The most common mistake people make when performing this calculation is not accounting for the number of moles of ions produced when the acid or base dissociates. Its easy to understand: only one mole of hydrogen ions is produced when hydrochloric acid dissociates, yet also easy to forget its not a 1:1 ratio with the number of moles of hydroxide released by calcium hydroxide (or other bases with divalent or trivalent cations). The other common mistake is a simple math error. Make sure you convert milliliters of solution to liters when you calculate the molarity of your solution!