TY - BOOK AU - dela Cruz, Thelma P. AU - ED - ED - ED - ED - SN - 2 PY - 0000///46 CY - PB - KW - KW - 2 KW - 0 KW - 6 KW - 20 N1 - Thesis (M.A.)-- Pamantasan ng Lungsod ng Maynila, 1999.;A thesis presented to the faculty of the Graduate School of Arts, Sciences, Education and Nursing in partial fulfillment of the requirements for the degree Master of Arts in Education major in Biological Science; 5 N2 - ABSTRACT: The study was conducted to make a comparative analysis on the diuretic property of three selected plants: banaba, sambong and pandan mabango, and to develop, try-out and evaluate enrichment activities on their diuretic property. Specifically, this study attempted to answer the following questions: 1. Which of the following plants: banaba, sambong, and pandan mabango exhibits more diuretic effect on test animals in terms of the following: 1.1. urine volume? 1.2 urine pH? 1.3 Urine specific gravity? 1.4 Urine color? 2. What enrichment activities can be developed on the diuretic property of banaba, sambong and pandan mabango? 3. Is there a significant difference in the Pre-test and post-test scores of experimental group who performed the enrichment activities? 4. Is there a significant difference in the attitude and perceptions towards the subject (Biology) of the experimental group before and after performing the enrichment activities? 5. Is there a significant difference between the experimental and control group in terms of the following: 5.1 gain scores in the achievement test 5.2 attitude and perceptions towards Biology subject? The study was divided into three phases: Phase I was the determination and comparison of the diuretic property of banaba, sambong, and pandan mabango. Phase II was the development of enrichment activities based on the result of experiment in Phase I. It also involved the construction of researcher instruments. Finally, Phase III was the try-out and evaluation of the developed enrichment activities. Metabolic cage method was used to determine and compare the diuretic effect of said plants on the volume, pH, specific gravity and color of urine excreted by the test animals. From the results of this experiment, five enrichment activities were developed. The effectiveness of such activities were determined using the following instruments: Achievement Test, Attitude and Perception Scale and Evaluation Checklist. The Quasi-experimental Researcher Method was employed in this study to determine the effectiveness of the enrichment activities in terms of improving the knowledge, positive attitude and perception of the students towards Biology subject. Forty freshmen students from the Bulacan State University who participated in the study were matched on the bases of age and midterm grade in Biology. They were assigned into two groups; the experimental and control group. An Achievement Test and a standardized Attitude and Perception Scale were given to both groups before and after the try-out period. In addition, an evaluation checklist was given to the experimental group for their assessment of the enrichment activities. The scores obtained by each groups in the said test were compared and tested for any significant difference using the following statistical treatment: means, standard error of the difference and t-test. Based on the results of data analysis, the following conclusions are drawn: 1. Pandan mabango exhibited more diuretic effect on test animals compared to banaba and sambong. Leaf discoloration in terms of urine volume, pH, specific gravity and color. 2. The enrichment activities that can be developed from the diuretic property of banaba, sambong and pandan mabango are the following: Preparation of Plant Samples, Preparation of Herbal Plant Decoction, Diuretic Assay of Banaba, Sambong and Pandan mabango Leaves, Herbal Tea Preparation and Herbaria Preparation. 3. There was a significant difference in the Pre-test and Post-Test scores of experimental group who performed the enrichment activities. 4. There was a significant difference in the attitude and perceptions towards the subject (Biology) of the experimental group before and after performing the enrichment activities. 5. There was a significant difference between the experimental and control group in terms of the following: 5.1 gain score in the achievement test 5.2 attitude and perceptions toward Biology subject In the light of the findings and conclusions of the study, the following recommendations are made: 1. On the diuretic property of three selected plants: 1.1 Similar study should be done on the three diuretic plants to verify results of this study. 1.2 The concentration of sodium, potassium and chlorine ions should be included as parameters for an in-depth comparison and analysis of the diuretic strength of the selected plants. 2. On the development of enrichment activities: 2.1 The enrichment activities develop by the researcher should be used as supplementary activities in the discussion of topics on excretory system and herbal plants. 2.2 Other enrichment activities can be developed on the antihypertensive effect of the three selected plants: banaba, sambong and pandan mabango, since antihypertensive people are give diuretic substance or drug. These activities in turn, can be integrated on topic about cardiovascular system and diseases related to it. 2.3 Biology teachers should utilize the community resources in developing activities for biology class. This may help develop students' appreciation and respect for their environment. 2.4 Science teachers should update the laboratory experiments based on the latest issues and trends in science teaching. 3. On the try-out and evaluation of enrichment activities: 3.1 Similar studies should be conducted on a long term basis using students of varying levels of mental abilities. 3.2 Increase the number of samples who will be participating in the study for a more valid and reliable results. 3.3 The effectiveness of the enrichment activities should also be determined in terms of knowledge retention of students by giving them the same test after moving up the next year level. 4. On the tasks of science teachers and administrators. 4.1 Teachers should give students more opportunities to perform laboratory activities and manipulate laboratory equipment, thus making them self reliant and confident as they enjoy laboratory work, thereby developing positive attitudes towards science. 4.2 Seminar-workshops for teachers should be given more emphasis on actual performance of activities by students and should be geared toward upgrading the capabilities of teachers and the improvement of supervision in conducting laboratory work ER -