美国高中的科技竞赛英国研究显示:隔代教育不如将孩子送托儿所德国家长鼓励孩子与大人争辩加拿大中小学心理健康教育的特点奥巴马提出全面教育计划:延长学时与提高教育标准四川小学紧急避险及救护教材投入使用 American high school science and technology competitions in the United Kingdom British study shows that: instead of education as the child to the nursery German parents to encourage children to argue with the characteristics of Canadian primary and secondary mental health education Obama proposed a comprehensive education program: to extend the school hours and improve education standards Sichuan primary emergency and Ambulance teaching materials put into use