The effects of exercise and selenium added high fat diet on edurance and serum lipid components were studied in rats. A total of 72 male Sprague-Dawley (150±35g, body weight) were divided into trained group and untrained group and were bred for 7 weeks. Each group had 6 different dietary subgroups; namely, basal diet, 20％ shortening and 20％ soybean oil subgroup and selenium (0.01mg％) added each subgroups. Exercises of 8-min treadmill running and 10-min swimming were given to the trained group every other day during the experimental period while only treadmill running was given to the untrained group during the last week. The amounts of food intake, changes in body weight and endurance were determined once a week and serum lipid components were measured before and after experimental period. Following are the results obtained : 1) The untrained group took a slightly larger amount of food than that in the trained group. The food efficiency is, however, higher in the trained group. Body weight increased more in untrained group, while high fat diet resulted in greater increment in body weight than that in normal diet groups. 2) The trained group showed remarkably longer endurance than the untrained group and selenium added high fat diet enhanced the effect. 3) The trained group showed lower blood level of T-chol., TG and TG/PL than the untrained group. All the other blood values of HDL-chol., PL, MDL-chol./T-chol., HDL/LDL and A/G ratio were higher in trained group. 4) Soybean oil added dietary groups exibited lower blood levels of T-chol., TG, TG/PL and A/G than those in shortening added dietary groups. On the contrary, the former groups showed higher blood HDL-chol., PL., HDL, HDL-chol. and HDL/LDL ratio than those of soybean oil added dietary groups. 5) LDH5 was the most abundant one among serum LDH isozymes. The electrophoretic pattern of serum LDH isozymes was not changed by exercise training and selenium added high fat diet. 6) Exercise training lowered blood GOT and TBA. These effects were enhanced by soybean oil added diets. From the above results it was concluded that a regular and long term exercise training as well as a small amount of selenium added high fat diet result in reduction of body weight and TBA and improve dietary efficiency and physical endurance in rats.

The plate tectonics is the theory which can systematically interpret various kinds of changes of crusts on the earth surfaces. If the concepts of this theory is taken a triangular position and systematically played up at the curricula of the earth science in the high school, this theory may be able to become the most adequate subject for students to interest in the earth science. The aim of this study is the making out the expanded model of the unit of plate tectonics for the purpose of the more effective teaching-learning of the plate tectonics and the improvement of curricula on the plate tectonics in the high school.

The aim of this study on analysis of curriculum of high school Earth Science is; 1) To investigate whether experiment and observation unit are properly organized. 2) To provide useful materials for reorganization of Earth Science curriculum in future. 3) To suggest that the curriculum be operated properly in the era of 2000s. This study reaches the conclusions which are as follows; 1) After classifying the course of experiment and observation, we have found it difficult to help the students inquiry learning for they are organized only to be explained by teacher on the purpose of passing entrance exam. 2) It is difficult to help students make an experiment because of laboratory's lack. So it is necessary for the education authority to require the situation and to support its system actively. 3) Lack of experimental equipments and classroom schedule for experiment make it difficult to make an experiment in most schools(For example 89.1 % of the whole school lack implement, 52.7% lack prepared hours, 73.6% perform less than 5 hours a week). 4) It is not proper to divide the curriculum into Earth Science(I) and Earth Science(II). Most of teachers tell that the teaching material is somewhat difficult for the students to understand and the quantity of those is too much(80.9%). 5) Those who study liberal course are inclined to choose Biology(82.7%) and those who study natural science, Chemistry(76.4%) or Biology(79.1). In most high school they are forced to run curriculum unfairly on account of this present condition.

Four observational astronomical item, have been pilottested with a 150mm refracting telescope in order to layout the detailed procedures for the suggested (inquiry) activities listed in the high school earth science curriculum and to contrive some adequate instructions for students stressed on how to make proper treatments with the collected materials. The tested items were of sunspots' motion, the size of lunar craters, the Galilian satellites' revolution, and the galactic distribution of stars. Following series of activities are suggested with respect to the way of collecting observational data and of giving proper instruction to students in class: 1) Photography and other material, he made by teacher and/or extracurricular group of students; 2) Replicas (xeroxed, photographs, Or slides) he made from the collected materials, '0 that they are available to all the students in class; 3) Quantative analyses, be taken as student' activity.

This study aims at giving effective suggestions for future Earth Science Education by making a theoretical teaching-learning model for inquiry science. The main subject of this study is to establish the learning system, educational goal and guide theory of Earth Science Education. Through above mentioned, following suggestions are presented: (1) The experiments and observations should be more emphasized than lectures in Earth Science Education. (2) It is necessary to retrain Earth Science teachers in order to improve their ability to guide the student's experiments. (3) Well designed laboratory equipments and kids of good quality and resonable price should be supplied. (4) Every teacher should work on positive line, extending the range of information through participating in the Korean Earth Science Education society, Earth Science meetings and various science education seminars.

이 硏究는 우리나라 國民學校 自然科 敎師用 指針書와 美國(Holt Science)의 敎師用 指針書를 分析 比較하였다. 各國의 科學敎育의 性格과 硏究課程 要素를 比較하여 보고 實際 內容에 있어서는 低學年에서 空氣分野와 高學年에서 海洋分野의 것을 다루었다.

地球科學 敎育에 關心을 갖고 硏究하던 중 1984年 2學期부터 1年間 美國 노-드 카로라이나 주립대학에 硏究敎授로 가서 國民學校 科學中 地球科學 敎育課程 內容을 比較 分析 硏究하게 되었다. 이 硏究는 우리 敎科書와 美國의 敎科書(Holt Science)의 體裁, 開發順序, 內容 및 槪念들을 比較하였다.

The papers of earth science examinations given during the first semester of 1981 academic year were collected from the seventy five high schools randomly chosen all over the country. The examination questions were analyzed and evaluated in order to grasp the current state and issues of earth science education. Some critical remarks and suggestions are made for improvement of the earth science education at the secondary school level.

The purpose of this study is to classify and to analize the instructional objectives in teacher's guides of high school earth science course. The Romey's definition of instructional objectives was based for classification. The results of the study show that approximately 77 percent of total action verbs appeared in all teacher's guides are classified as level NO and level O. The dominant usage of such non-inquiring words may prevent the students from doing investigative activities. The level NO verbs reveals the vagueness of instructional objectives of the guide books themselves. Also, the frequent appearance of level O verbs mean that the books emphasize students recall behavior more than experimental, observational, interpretative and synthetic behaviors. Meanwhile, even the words requiring investigative activities are also mostly classified as low levels and fail to lead the students to grasp major concepts or to show original thoughts. The repeat usage of some particular words in stating instructional objectives, which is prevailing tendency of most book, exposes the monotony in instructional functions of those teacher's guides.

This study aims to present an effective basic material and data for the future earth science education by analysizing earth science curriculum of Korean high school. The method used in this study is based on comparison and analysis of the related reference materials. The main subject of this study is to find the changing history of earth science curriculum and compare the Korean earth science curriculum revised in 1982 to the American and Japan curriculums. Based on these studies following suggestions are presented for the future earth science education; 1) The laboratory education in earth science should be more emphasized than lecture. 2) It is urgent need to publish laboratory manuals for students. 3) Well designed laboratory equipments and good quality kits of reasonable price should be supplied.

This study aims to present an effective basic material and data . for the future earth science education by examining the present condition of scientific laboratory and observation unit of earth science test books. The method used in this study is based on the questionnaire obtained from the earth science teachers throughout the nation and an analysis of reference material related. The main subject of this study is the basic qualification of earth science teacher, the present condition of laboratory equipment, the status of scientific experiment and the problems of earth science experiment kits. Based on the above investigations, suggestions are presented for future earth science education: (1) The laboratory and observation education should be more emphasised than lecture. (2) A team should consists of 10 students at laboratory. (3) It is in urgent need to publish a laboratory manual for the student. (4) Well designed laboratory equipments and good quality kits of reasonable price should be supplied.