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Volume 13, Issue 3
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[in Japanese]1989 Volume 13 Issue 3 Pages 115-
Published: September 10, 1989
Released on J-STAGE: June 30, 2017
JOURNAL FREE ACCESSDownload PDF (194K) -
Osamaro NAKADAKE1989 Volume 13 Issue 3 Pages 116-125
Published: September 10, 1989
Released on J-STAGE: June 30, 2017
JOURNAL FREE ACCESSThis study is on the development of educational information system using computers and audio visuals which has been researched and studied at the elementary school affiliated to Kyoto Bunkyo JR. College since April 1982 at the time of it's founding. And one of important purposes of the studies is to find out whether such equipments have helped students for having substantial and efficient education or not. After researches have done, the writer got the following results: 1) Such educational information system is helpful to the teachers in many fields in education. 2) It is adapted by students easily and also helped them improve their scholarstic attainments. 3) At present the writer is working in order to have more intelligent and effective system.View full abstractDownload PDF (1009K) -
Jiro SAKAMI1989 Volume 13 Issue 3 Pages 126-131
Published: September 10, 1989
Released on J-STAGE: June 30, 2017
JOURNAL FREE ACCESSBetterments of the lecture on physics for students of the literary course were intended. First, a question pertaining to Newtonian mechanics was put to the students in order to know the level of their understanding of physics, and it was found that they understood physics with varying steps from the Aristotelian step to the Newtonian. Secondly, physical concepts put in a newspaper during the past one year were classified and the degree of interest in these concepts was inquired of the students, because it is important to know what are necessary to the graduates of the literary course and it is desirable to lecture on the concepts which absorb the interest of students. The conclusion is as follows: A lecture on physics for students of the literary course should be started with the physical stand point, that is, physics intend to form all natural phenomena into a systematic explanation, for the students are different from each other in understanding of physics. It is desirable that lectures on modern physics are increased in hours, for about half of the physical concepts in the newspaper belonged to modern physics and the students were also interested deeply in the concepts of modern physics.View full abstractDownload PDF (608K) -
Masayuki IWAMOTO, Takao SINOZAWA1989 Volume 13 Issue 3 Pages 132-138
Published: September 10, 1989
Released on J-STAGE: June 30, 2017
JOURNAL FREE ACCESS(Synopsis) A simple method for the extraction and partial purification of the chromsomal DNA from a thermophilic bacterium, PS3, is described. Actively growing thermophilic bacerium PS3 was lysed by sodium dodesyl sulfate (SDS) and then the proteins were eliminated by the perchloric acid and chloroform treatment. The resulting partially purified DNA was precipitated by ethanol used for genetic transformation of PS3. A cadmium-resistant strain (CDRI) was isolated from PS3 by a treatment with N-methyl-N'-nitro-N-nitrosoguanidine (MNNG). A partially purified DNA were also prepared from the CDRI cells. Then this DNA was added to the proliferating PS3 cells (cadmium sensitive cells). The cadmium-resistant cells were obtained at a frequency of 10^3 cell/μg DNA. This bacteria did not require chemical treatment to induce competence, although high-frequent transformation required the addition of Ca^<2+>. Transformation frequency was greatly reduced by the addition of EDTA. A further simplified method for the genetic transformatin of PS3 on solid agar medium is also described. The application of these methods to the biology education in high school is also discussed.View full abstractDownload PDF (869K) -
Yasuko TOKORO, Yasuharu FUJIWARA, Kensuke CHIKAMORI, Katsuo MURATA, Sh ...1989 Volume 13 Issue 3 Pages 139-145
Published: September 10, 1989
Released on J-STAGE: June 30, 2017
JOURNAL FREE ACCESSA simplified instrument, a trial conductivity meter, to measure the electrochemical properties of ionic aqueous solution has been developed for school teaching materials. This instrument was composed of a stainless steel electrode, a midget lamp and a solar cell. The following three systems were measured to check the performance and the reproductivity of this instrument. (1) The preparation of the calibration curves of four kinds of sodium salts (NaCl, NaF, Na_2SO_4, Na_3PO_4) solution. (2) The determination of the values of critical micelle concentration (cmc) of four kinds of anionic surfactants (sodium dodecylsulfate (SDS), sodium dodecylbenzensulfonate (DBS), sodium laurate, sodium myristate). (3) The quantitative analysis of electrolytes included in tap water. This trial conductivity meter, which could be easily assembled with very cheap parts, was very simple in the principle and convenient on the use. In addition to these merits, the data obtained by this instrument showed in good agreement with the data obtained by the commercial conductivity meter. In elementary and lower secondary school, this trial conductivity meter may be useful to understand the basic electrochemical properties of ionic aqeous solution as teaching materials. And may be available to apply the electrochemical analysis of ionic compounds in upper secondary school and general academic course of university or college.View full abstractDownload PDF (679K) -
Asao YARA, Kazuharu YOSHIDA1989 Volume 13 Issue 3 Pages 146-151
Published: September 10, 1989
Released on J-STAGE: June 30, 2017
JOURNAL FREE ACCESSWe should like to report on the self learning skills of the students in the college of education for whom we have planed a suitable teaching scheme, have put it into practice and have obtained some results. The authors gave the students a theme related the actual matter in the education field, and taught them a very simple and basic operating technique of the personal computer as an aid in solving the problems connected with the given theme. We requested them to evaluate mutually their interim reports and their skills for use of the personal computer at each step of solving the problems. As a result, the students were not only able to solve the problems, but also developed self learning skills through the mutual evaluation activities and an interest in the use of personal computer.View full abstractDownload PDF (778K)
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