简介:Eachyearthereareatleastfivemillionpeoplearoundtheworldwhodevelopseriousflu,andalmosthalfamilliondeaths.Whensomeoneweknowgetsthefluvirus,weexpectthemtobeverycarefulnottopassitontoothers.Doctorsandnursesworkingwithflupatientsalsoneedtoprotectthemselvesfromthevirus.Butwhatisthebestwaytodothis?ThisisthequestionthatfluexpertProfessorJonathanVan-TamatNottinghamUniversityistryingtoanswer.Hewantstofindouthowfluistransmitted,sothathecanstopdoctorsandnursesgettingsick.
简介:摘要《数学课程标准(2011年版)》指出“为了帮助学生真正理解数学知识,教师应注重教学知识与学生生活经验的联系,组织学生开展实验、操作、尝试等活动,引导学生进行观察分析、抽象概括,运用知识进行判断。”新课程下的小学数学教学强调学生的发展,内在的发展,知识的内化。