Master of Arts major in Biology
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Item Factor correlates of the level of academic performance in science at the University of Baguio Science High School(2009-01) Simon, Julius A.This study aimed to give understanding about profound changes Science and technology undergo everyday in consonance with digital and fast pacing lifestyle and demands. Serving as catalyst for these changes is education designed to shape the quality of the students' lives as they come of age in the 21st century. The purpose of this study was to strengthen science instruction at the University of Baguio Science High School amidst challenging competition among science-based learning institutions in the country. This study aimed to determine the factor correlates on the level of academic performance in Science at the University of Baguio Science High School. Specifically, it sought to answer the following questions: 1. What is the level of attainment of the objectives of Science instruction at the University of Baguio Science High School as perceived by the teachers? 2. What is the extent of the use of identified teaching methods and strategies by science teachers in teaching science? 3. What is the extent of the utilization of instructional materials by science teachers? 4. What is the level of instructional competencies of Science teachers? 5. What is the level of academic performance of students in Science? 6. What is the correlation between academic performance and a. extent of use of identified teaching methods and strategies; b. extent of utilization of instructional materials; and c. level of instructional competencies of teachers? This study made use of descriptive ex-post facto survey method of research and was anchored on the concept of evaluation. Data were processed using the Statistical Package for the Social Sciences (SPSS) Version 15. Based on the problems, the following were the findings of this research: 1. As perceived by the science teachers the objectives of science instruction at the University of Baguio Science High School is very much attained. 2. Science teachers often use relevant methods and strategies in their teaching. 3. The students perceived that science teachers often use instructional materials in their lessons. 4. Instructional competencies of teachers reflected as outstanding along the teaching skills, affective and interpersonal skills, management skills and evaluation skills. 5. The University of Baguio Science High scholars achieved satisfactory performance in science. 6. There is a very weak relationship between academic performance in Science and level of instructional competencies of teachers. In the light of the findings derived from this study, the following conclusions are derived: 1. The emphasis in the teaching of Science and Technology at the University of Baguio Science High School is the holistic development of the learner. 2. Science teachers failed to employ all possible teaching methods and strategies used in teaching science. 3. Science teachers do not maximize the utilization of all instructional materials. 4. Science teachers are competent which means they are very confident and that they address the needs of the students with regard to learning. 5. The University of Baguio Science High scholars reciprocate the efforts of their science teachers through their satisfactory performance in science. 6. There is a very weak correlation between the academic performance in Science and the identified teaching-learning factors. After a careful review of the findings and analyses of data, the following recommendations are posited: 1. A seminar on the formulation of specific learning objectives for the science teachers be organized and conducted as part of the summer in-service training program. 2. A seminar-workshop on specific teaching methods and strategies applicable in teaching scientific concepts or principles. 3. The science teachers be encouraged to utilize instructional materials. 4. Problems encountered by the students in their academic and non academic concerns can be decreased or at least eased out through the help the University of Baguio Center for Counseling and Student Development (formerly UB Guidance Center). 5. The subject matter, skills, and attitudinal objectives reflect careful planning by the science teachers. 6. Another research undertaking which will tackle the conflicting results of this study.Item Indigenous plant extracts as botanopesticides against greenhouse whiteflies(2009-04) Kebasen, Chester B.Organic farming in the Cordilleras is fast becoming a trend in crop production mostly due to low prices of non-organically grown crops, increasing prices of farm inputs like fertilizers and pesticides and increase health awareness of buyers. However, due to its non-use of synthetic pesticides, pest control systems in organic farming have been much of a challenge to practitioners. The study aimed to verify and compare the effect of extracts coming from lantana and sunflower against greenhouse whiteflies. The importance of this study is to aid the development of organic farming in the area in terms of crop protection by looking into technologies that organic farmers may adopt and implement in their farms that will fit in their organic farming framework and guidelines. The study determined the efficacy of the sunflower and lantana as botanopesticide against greenhouse whiteflies. The following are the specific problems that the study aimed to answer: 1. What is the mortality rate of whiteflies exposed to each botanopesticide? Hypothesis The mortality rate of whiteflies exposed to each botanopesticide is high. 2. Is there a significant difference between the two indigenous plant extracts in reducing the population of greenhouse whiteflies? Hypothesis There is a significant difference between the two indigenous plant extracts in reducing the population of greenhouse whiteflies. 3. Is there a significant difference among the levels of concentration of indigenous plant extracts on the population of white flies? Hypothesis There is a significant difference among the levels of concentration of indigenous plant extracts on the population of whiteflies. The study made use of three-week old tomato host plants enclosed in lxlx2 mesh-cloth cages. The whiteflies, which were reared in a special rearing cage, were introduced into these mesh-cages at a ratio of 50 whiteflies per cage. They were then sprayed with the extracts of sunflower and lantana at these ratios: 1:.05, 1:1 and 1:1.5 plant matter-water ratio. The indigenous plants' extracts were obtained through grinding and filtering the plant matter mixed with varying amounts of water. The filtrate coming from the different treatments were applied on host plants with whiteflies for three times at a three-day interval. Analysis of variance was used to analyze the gathered data. The following are the major findings of the study: 1. The mortality rate of whiteflies exposed to lantana and sunflower treatments is high; 2. There is no significant difference between the lantana and sunflower plant extracts in reducing the population of greenhouse whiteflies; and 3. There is no significant difference among the levels of concentration of lantana and sunflower plant extracts on In the light of the findings of the study, the following are the conclusions: 1. Lantana and sunflower are effective botanical pesticides to control the population of greenhouse whiteflies as their effect is comparable with the conventional pesticide Decis R100. 2. Either lantana or sunflower can be used by farmers as an alternative in the control of whitefly population. 3. Lantana and sunflower can be used effectively against whiteflies even at 1:1.5 plant matter-water ratio. The following are the recommendations as based on the conclusions drawn from the study: 1. Further investigations should be conducted on the use of lantana and sunflower as botanical pesticides, especially on other insect pests. 2. Studies to further explore concentrations or dilutions of plant matter other than what was used in this experiment have to be implemented. 3. Studies should be conducted to determine other extraction methods that could fit into the farming systems of common farmers. 4. Further researches on the other forms of pesticides derived from these plants can also be conducted and improved, aside from its extracts. 5. Studies on different organic forms of sticker/ surfactant technology that would be compatible with lantana and sunflower extracts can be done.