Miss Rose taught physics in a London school Last week she was explaining to one of her classes about sound,and she decided to test them to see how successful she had been in her work,she said to them,"Now,I have ...Miss Rose taught physics in a London school Last week she was explaining to one of her classes about sound,and she decided to test them to see how successful she had been in her work,she said to them,"Now,I have a sister in Washington",If I was calling her on the telephone,and at the same time you were 20 metres away,and listened to me from the other side of the street ,who could hear what I said earlier my sister or you ,and why?The cleverest boy at once anserede,"Your sister,Miss Rose,because electricity travels faster than sound waves."That’s very good"Miss Rose answered,But then one of the girls put up her hand,and Miss Rose said,"Yes,Betty""I don’t agree"Betty said."Your sister would hear you earlier because ,when it’s eleven o’clock here,it’s only six o’clock in Washington"展开更多
In the elementary school physical education teaching, compared with the single movement exercise and the boring theory curriculum, the sports game which has the strong entertainment can attract the students attention....In the elementary school physical education teaching, compared with the single movement exercise and the boring theory curriculum, the sports game which has the strong entertainment can attract the students attention. Teaching practice shows that it is an effective teaching measure to infiltrate sports games into primary school physical education teaching, which can obviously improve students classroom enthusiasm and improve teaching efficiency on the basis of reducing teachers burden. However, in the current primary school physical education, some teachers have a vague understanding of game teaching and lack experience in the combination of game and physical education.展开更多
The 800-m(m)run is part of Physical Education classes in Cameroon,after which arrhythmias may occur during recovery.Hence,this study aimed at determining relationship between 800-m run loads on cardiac autonomic recov...The 800-m(m)run is part of Physical Education classes in Cameroon,after which arrhythmias may occur during recovery.Hence,this study aimed at determining relationship between 800-m run loads on cardiac autonomic recovery among school adolescents.Forty-two male adolescents(aged[17-1]years)performed 800-m.Post-exercise heart rate variability(HRV)was recorded during 5-min(min)(HRV5-min)and 15-min(HRV15-min)in time:Standard deviation of normal to normal(SDNN);Root mean square of successive differences(RMSSD)and frequency domain(LH:Low frequency,HF:High frequency,TP:Total power).Rating of Perceived Exertion(RPE)and blood lactate concentration(BLa)were measured after exercise.In HRV5-min,RPE was associated with SDNN(r=-0.44,p<0.01)and RMSSD(r=-0.38,p<0.05).BLa was correlated with SDNN(r=-0.38,p<0.05)and RMSSD(r=-0.56,p<0.001)in the time-domain,LF(r=-0.64,p<0.001),HF(r=-0.58,p<0.001)and TP(r=-0.61,p<0.001)in frequencydomain.Moreover,RPE was correlated with LF(r=-0.44,p<0.01),TP(r=-0.49,p<0.01)while exercise duration with HF(r=-0.38,p<0.05).In HRV15-min,BLa was correlated with RMSSD(r=-0.53,p<0.001)and SDNN(r=-0.68,p<0.001).RPE was negatively correlated SDNN(r=-0.53,p<0.01)and RMSSD(r=-0.44,p<0.01).BLa was associated with HF(r=-0.55,p<0.001),TP(r=-0.50,p<0.01)and RPE with LF(r=-0.51,p<0.01),HF(r=-0.50,p<0.01),TP(r=-0.49,p<0.01).In addition,exercise duration was negatively linked to HF(r=-0.36,p<0.05).This study outlined that in untrained adolescents an increase of 800-m loads is associated with a slow vagal indexes of HRV during the recovery.展开更多
In today’s world some changes have been occurred in human lifestyle,these changes,along with the advantages,have led to a series of disadvantages including their disconnection with the nature.One of the most importan...In today’s world some changes have been occurred in human lifestyle,these changes,along with the advantages,have led to a series of disadvantages including their disconnection with the nature.One of the most important areas to re-establish the relationship is the school.The presence of nature at schools,and holding some classes in nature,in addition to meeting the special needs of children causes their separation from those small and boring classes as well as their interest in courses.This study aimed to investigate the role of nature in children’s learning.For this purpose,third,fourth and fifth grade classes of 3 schools were held outside the school environment and in the nature in 5 courses.The study is a combinational research and field,indirect observation and library data collection methods were applied,where in the indirect observation,two types of questionnaires were prepared related to the students and teachers and were randomly distributed among 580 students and 50 elementary school teachers.Test reliability was assessed using Cronbach’s alpha and it was obtained to be 0.890.The results of this study indicate that the physical place as one of the factors in children’s learning has the maximum impact on teaching and learning of children.At the end of the study and by investigating the existing factors in the environment we understood that the expansion of the nature and natural light of it causes the students’interest in lessons in nature.展开更多
In constantly creating a new situation in the development of sports undertakings in China, under the background of accelerating the construction of a strong sports country, using the literature entation method, logic ...In constantly creating a new situation in the development of sports undertakings in China, under the background of accelerating the construction of a strong sports country, using the literature entation method, logic analysis method and other methods, Based on the integration of sports and education. The reform of public physical education in China, from the curriculum reform system, curriculum cultural connotation, curriculum teaching setting, curriculum teaching method and sports injury accident, combining with the new educational concept of the integration of sports and education. With the principle of "enjoy fun, enhance physical fitness, perfect personality, temper the will", put forward the five improvements of university sports reform in china, namely: to build a characteristic curriculum reform system, strengthen the foundation of physical education teaching, attach importance to cultivating people by virtue, enrich the campus sports culture and develop the high-quality course content, stimulate students' interest in sports and innovate the sports teaching mode, improve students' physical health and improve laws and regulations, break down the shackles of physical education teaching, and provides a certain theoretical basis for the reform of public sports courses in colleges and universities.展开更多
The Ministry of Education once again stressed that students should take exercise for one hour every day, and it is strictly prohibited to squeeze out the time for physical education and campus sports activities. This ...The Ministry of Education once again stressed that students should take exercise for one hour every day, and it is strictly prohibited to squeeze out the time for physical education and campus sports activities. This requires us physical education teachers to fully mobilize students' interest and passion in physical education, teachers should abandon the use of traditional teaching methods and means. Make full use of the organic combination of multimedia technology and physical education, improve the learning efficiency of teachers and students with high quality and high efficiency, keep pace with The Times, make use of the huge potential of multimedia to physical education, constantly explore, comprehensive practice, the organic combination of the two, to ensure the completion of physical education of high quality.展开更多
文摘Miss Rose taught physics in a London school Last week she was explaining to one of her classes about sound,and she decided to test them to see how successful she had been in her work,she said to them,"Now,I have a sister in Washington",If I was calling her on the telephone,and at the same time you were 20 metres away,and listened to me from the other side of the street ,who could hear what I said earlier my sister or you ,and why?The cleverest boy at once anserede,"Your sister,Miss Rose,because electricity travels faster than sound waves."That’s very good"Miss Rose answered,But then one of the girls put up her hand,and Miss Rose said,"Yes,Betty""I don’t agree"Betty said."Your sister would hear you earlier because ,when it’s eleven o’clock here,it’s only six o’clock in Washington"
文摘In the elementary school physical education teaching, compared with the single movement exercise and the boring theory curriculum, the sports game which has the strong entertainment can attract the students attention. Teaching practice shows that it is an effective teaching measure to infiltrate sports games into primary school physical education teaching, which can obviously improve students classroom enthusiasm and improve teaching efficiency on the basis of reducing teachers burden. However, in the current primary school physical education, some teachers have a vague understanding of game teaching and lack experience in the combination of game and physical education.
基金the University of Douala Institutional Ethic Committee for Human Research(NO:1177CEI-UDo/11/2017/T).
文摘The 800-m(m)run is part of Physical Education classes in Cameroon,after which arrhythmias may occur during recovery.Hence,this study aimed at determining relationship between 800-m run loads on cardiac autonomic recovery among school adolescents.Forty-two male adolescents(aged[17-1]years)performed 800-m.Post-exercise heart rate variability(HRV)was recorded during 5-min(min)(HRV5-min)and 15-min(HRV15-min)in time:Standard deviation of normal to normal(SDNN);Root mean square of successive differences(RMSSD)and frequency domain(LH:Low frequency,HF:High frequency,TP:Total power).Rating of Perceived Exertion(RPE)and blood lactate concentration(BLa)were measured after exercise.In HRV5-min,RPE was associated with SDNN(r=-0.44,p<0.01)and RMSSD(r=-0.38,p<0.05).BLa was correlated with SDNN(r=-0.38,p<0.05)and RMSSD(r=-0.56,p<0.001)in the time-domain,LF(r=-0.64,p<0.001),HF(r=-0.58,p<0.001)and TP(r=-0.61,p<0.001)in frequencydomain.Moreover,RPE was correlated with LF(r=-0.44,p<0.01),TP(r=-0.49,p<0.01)while exercise duration with HF(r=-0.38,p<0.05).In HRV15-min,BLa was correlated with RMSSD(r=-0.53,p<0.001)and SDNN(r=-0.68,p<0.001).RPE was negatively correlated SDNN(r=-0.53,p<0.01)and RMSSD(r=-0.44,p<0.01).BLa was associated with HF(r=-0.55,p<0.001),TP(r=-0.50,p<0.01)and RPE with LF(r=-0.51,p<0.01),HF(r=-0.50,p<0.01),TP(r=-0.49,p<0.01).In addition,exercise duration was negatively linked to HF(r=-0.36,p<0.05).This study outlined that in untrained adolescents an increase of 800-m loads is associated with a slow vagal indexes of HRV during the recovery.
文摘In today’s world some changes have been occurred in human lifestyle,these changes,along with the advantages,have led to a series of disadvantages including their disconnection with the nature.One of the most important areas to re-establish the relationship is the school.The presence of nature at schools,and holding some classes in nature,in addition to meeting the special needs of children causes their separation from those small and boring classes as well as their interest in courses.This study aimed to investigate the role of nature in children’s learning.For this purpose,third,fourth and fifth grade classes of 3 schools were held outside the school environment and in the nature in 5 courses.The study is a combinational research and field,indirect observation and library data collection methods were applied,where in the indirect observation,two types of questionnaires were prepared related to the students and teachers and were randomly distributed among 580 students and 50 elementary school teachers.Test reliability was assessed using Cronbach’s alpha and it was obtained to be 0.890.The results of this study indicate that the physical place as one of the factors in children’s learning has the maximum impact on teaching and learning of children.At the end of the study and by investigating the existing factors in the environment we understood that the expansion of the nature and natural light of it causes the students’interest in lessons in nature.
文摘In constantly creating a new situation in the development of sports undertakings in China, under the background of accelerating the construction of a strong sports country, using the literature entation method, logic analysis method and other methods, Based on the integration of sports and education. The reform of public physical education in China, from the curriculum reform system, curriculum cultural connotation, curriculum teaching setting, curriculum teaching method and sports injury accident, combining with the new educational concept of the integration of sports and education. With the principle of "enjoy fun, enhance physical fitness, perfect personality, temper the will", put forward the five improvements of university sports reform in china, namely: to build a characteristic curriculum reform system, strengthen the foundation of physical education teaching, attach importance to cultivating people by virtue, enrich the campus sports culture and develop the high-quality course content, stimulate students' interest in sports and innovate the sports teaching mode, improve students' physical health and improve laws and regulations, break down the shackles of physical education teaching, and provides a certain theoretical basis for the reform of public sports courses in colleges and universities.
文摘The Ministry of Education once again stressed that students should take exercise for one hour every day, and it is strictly prohibited to squeeze out the time for physical education and campus sports activities. This requires us physical education teachers to fully mobilize students' interest and passion in physical education, teachers should abandon the use of traditional teaching methods and means. Make full use of the organic combination of multimedia technology and physical education, improve the learning efficiency of teachers and students with high quality and high efficiency, keep pace with The Times, make use of the huge potential of multimedia to physical education, constantly explore, comprehensive practice, the organic combination of the two, to ensure the completion of physical education of high quality.
