Theory and Practice Research Paper Example | Topics and Well Written Essays - 1500 words

Theory and Practice - Research Paper Example For instance, studies in mathematics and sciences have shown that better performance emanates from depth rather than breadth (Cogan & Schmidt, 2002). Teaching is termed successful, if students learn what has been taught. Therefore, this paper focuses on what students are learning. It is subdivided into three sections: the role of assessment in the context of instruction, most essential and long lasting concepts the students should be taught and, finally, the role of assessments. Beginning from looking at the role of assessment in the context of instruction, assessment is supposed to be developed to fit the learning targets set for the students in order to be supportive to the students. It should be consistent with methods of instruction as poor connection among learning targets. Instructions and assessment only amount to more than confusion and frustration leading to anger and despair. Learning is accompanied by a cognitive change and behavioral experience among people. Contrary to w hat teachers believe, much of what students learn come from experiences outside school rather than from classroom. Therefore, an ideal relationship should be established among learning targets, instructions and assessment. ... In determining what students are to learn, it best begins with one’s knowledge of the subject combined with their values as an educator. No time is sufficient for a student to learn all that is required of them. Factory model of schooling in which teachers rush to cover a topic after topic leaves little or no time for internalizing ideas and making the concepts gained a solid part of the student’s cognitive and behavioral experience. Students retain little of what is taught in courses that is based on content coverage other than deep understanding of the concepts. In the event that students cannot learn all that is taught, wise choices ought to be made about what is possible in a given fixed time. Learning goals and learning objectives are the terms used as labels for statements about what teachers want students to learn. Learning goals reflect ultimate aims of schooling; whereas, learning objectives focus more on knowledge and skills that help students attain their goa ls. The term subject areas are used to refer to conventional titles of content taught in school, while discipline refers to fields or study and work. Four questions can assist in framing learning goals for teaching and these include: evaluating the dimensions of the subject are to be taught, the chief aspects of these subject areas to students of a certain year and the level of sophistication. Students can, hence, continue working on the broad goals after moving to other teachers. The third question is the knowledge and skills within the discipline that will help students understand the working of other people in the field, the knowledge of people in the field that makes them successful and their

Literature Review Are Wound Vacuum Devices Healing Wounds Essay

Literature Review Are Wound Vacuum Devices Healing Wounds - Essay Example VAC was even compared with the traditional WM dressing method and proved to heal better. This only proves that VAC is indeed a promising and faster way to heal wounds. The main purpose of this research is to look through the new way of wound healing. In the United States, over 2.8 million patients have chronic wounds and treatments cost billions of dollars per year. Wound healing is a complex process which starts with removal of debris, control of infection, clearance of inflammation, angiogenesis, deposition of granulation tissue, contraction, remodeling of the connective tissue matrix and maturation. This sequence of events should be undergone by the wound for proper healing whilst if it fails to undergo these events, a chronic open wound without anatomical or functional integrity results (Joseph, 2008). Chronic wounds should be healed at a faster rate in order to decrease hospitalization days and thereby reduce costs. A product which delivers improved healing process could help in decreasing infection, amputation and length of hospital stay thus entails potential annual savings for healthcare cost. The introduction of vacuum-assisted closure (VAC) which utilizes subatmospheric technique may be the answer in this medical challenge. In VAC, placing an open-cell foam dressing is involved. It is placed into the wound cavity and controlled subatmospheric pressure is applied. The technique was observed to remove chronic edema which increases local blood flow and enhanced formation of granulation tissue (Joseph, 2008). VAC applies negative pressure to wounds hence fluid is removed and growth of granulation tissue is stimulated. Acute, subacute and chronic wounds may be applied with VAC. Argenta, et al. have previously described the use of the VAC device to enhance healing and promote closure of a variety of open wounds FDA cleared VAC for clinical use. Frequent dressing changes which required when using WM, could be lessen by using VAC which requires dressing changes only every 48 hours (Joseph, 2008). Review of the Literature Senchenkov et al. (2007) conducted a study on the use of vacuum assisted closure (VAC) dressing for irradiated wounds. This study aimed to examine the outcomes of split-thickness skin grafts (STSG) secured by VAC during the early part of the postoperative period. Reviews were done on the records of 17 preoperatively radiated patients with extremity sarcomas that was reconstructed with STSGs combined with VAC to assess the efficiency of VAC in this purpose. Through January 1997 and December 2005, there have been 19 patients identified to base on their records to have undergone STSG reconstruction of irradiated extremity defects with VAC. These patients had soft tissue sarcomas. External beam radiation was used to treat the tumor bed and added with intraoperative radiation or brachytherapy. This was done before skin was grafted. Two of these patients however were excluded in the study because one had necrosis of the underlying irradiate muscle flaps while the other had 40% skin graft placed with epidermis which faced the recipients bed. This left 17 patients (9 men and 8 women, age 42 to 82, mean 65) to be