Friday, February 28, 2020
Trends That Influence Effective Learning Assignment
Trends That Influence Effective Learning - Assignment Example Proper instructional design should promote the transfer of information from the known to the unknown to enable learners to link up the current to the past, and be able to prepare for the future. The efficiency of every trend of instruction should be evaluated scientifically, or through observations to ensure significant results that may facilitate easy transition of knowledge and skills. Promoting performance in education, one should come up with various instructional blueprint models such as the ADDIE process. This paper shall indicate how this model of instruction promotes instruction. According to Morrison et al (2010) ADDIE process was established in the University of Florida, and was meant for military training servicemen, who needed curriculum development processes. Its present version was developed, and revised in mid 1980ââ¬â¢s. ADDIE process involves the five treads founded in this model. They include; analyze, design, develop, implement, and evaluation. These five steps have an influence that will enable effective learning. Analyze; this involves an instructor collecting information concerning the learners, identifying the topics, and the content that should be covered. It is in this step that the instructors give a layout of the projects objectives that need to be achieved. This enhances and gives meaning to the content since it makes learning to be relevant and achievable. Objectives serve as pointers of goal setting in education. When an instructor is developing a pedagogical way of delivering information, one must ensure that he comes up with objectives that need to be addressed. In cases, where these goals are not met, then learning may not have taken place. Therefore, for useful learning and teaching to be identified proper tools and materials should be applied to improve instruction. Design; this is the second step that enables instructional designers to develop their projects using the information received from the analysis stage. It is at this point that the instructor shows how he plans to ensure that learning has been achieved. The content is broken down in to basic units that can be easily understood by learners. The instructors use elementary concepts as foundations to build complex ideas. In addition, the instructor shows activities which will involve learners that will portray an achievement of goals in education. Develop; this is where activities that need to be implemented are identified and developed for effective leaning. Materials that should be used in the design are collected and brought together. The instructor, at this level makes sure that the models for the design are available to enhance the achievement of the goals. Implement; content is the subject matter that the instructor intends to pass to the learners. This suggests that content is a significant factor to be considered, when designing teaching approaches. Therefore, it is at this stage that the content is build up together with the tools and materials of learning that are needed to facilitate the transition of knowledge and skills (Morrison et al 2010). Evaluate; as mentioned above, goals indicate the route map, and the foundation of effective learning. They guide the instructors on how to deliver their content to the learners. Therefore, assessment of these goals is necessary to test the achievement of the learning process. According to Morrison et al (2010), content should be in agreement with the goals
Wednesday, February 12, 2020
Polymers Essay Example | Topics and Well Written Essays - 1000 words
Polymers - Essay Example Glycogen also is used for long term energy energy storage, but only animals. Animals can hydrolyze this polymer to obtain glucose. Starch and glycogen have many hydrogen and oxygen rich functional groups which make them reactive with water, during the hydration and condensation processes which created and store energy within the body. Cellulose has a different king of bond between monomers, forming linear polymers that are cross-linked by hydrogen bonds with other linear chains. Cellulose is the principal structural molecule in the cell walls of plants and algae. Animals cannot hydrolyze this polymer to obtain glucose without the help of intestinal bacteria, it is referred to as fiber. Another characteristic of monosaccharides is that they can act as mild reducing agents. This is because the aldehydo group that is present can be oxidized to form a carboxylic acid group, or in the presence of a base, a carboxylate ion group. Fructose can also act as a reducing sugar, even though it has a ketone group instead of an aldehyde group. Under basic conditions, the fructose molecules can, essentially, have the location of the carbonyl bond switched to convert them into a glucose molecule. This occurs in a number of steps involving removing hydrogens from the #1-C and its oxygen and moving them to the #2-C and its oxygen. Glucose is heated with Benedict's reagent (CuSO4, NaOH, a... Glucose is heated with Benedict's reagent (CuSO4, NaOH, and tartaric acid) to form a brick red precipitate. Sucrose does not react under these conditions. Fructose does form a red precipitate with Benedict's reagent. Carbohydrates that contain aldehydes or a-hydroxymethyl ketones can be oxidized by Cu(II) ion and are classified as reducing sugars. They reduce the Cu(II) ion to Cu(I). - Relate the behaviour of the amino acids / proteins under test to their structural characteristics. Biuret Test for Proteins: Biuret reagent is a light blue solution which turns purple when mixed with a solution containing protein. The purple color is formed when copper ions in the biuret reagent react with the peptide bonds of the polypeptide chains to form a complex. Because amino acids contain a free amino group, they are readily detected with ninhydrin reagent which reacts with free amino groups to form a purple or violet colored substance. Ninhydrin reagent can also be used to detect proteins, but the proteins must be heated or digested to hydrolyze the protein into free amino acids. - Relate the behaviour of the lipids under test to their structural characteristics. In lipids carbon and hydrogen predominate because there is very little oxygen which makes them more of less hydrophobic. Diverse types of lipids have different roles including energy storage and structural and metabolic functions. Fats are polymers of fatty acids (usually three) and one glycerol molecule, formed by dehydration reactions, and are called triglycerides or triacylglycerided. Fats are tremendous sources of energy and can store approximately 2 times better than polysaccharides. Saturated fatty acids have no double bonds between carbons, and
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