口腔扁平苔藓鉴别诊断
设计任务:请阅读下面学生信息和语言素材,设计20分钟的英语写作教学方案。
该方案没有固定格式,但须包含下列要点:
●teaching objectives
●teaching contents
●key and difficult points
●major steps and time allocation
●activities and justifications
教学时间:20分钟
学生概况:某城镇普通中学初中二年级(八年级)学生,班级人数40人,多数学生已经达到
《义务教育英语课程标准(2011年版)》三级水平。学生课堂参与积极性一般。
语言素材:

Note 2
Dear Ton,
Thanks for showing me the school last week. I was having a hard time finding it until you came along. And I enjoyed meeting Carlos. He's really good at math, isn't he? He said he'd help me with my math project. Friends like you make it a lot easier to get along in a new place.
Bill
Note 3
Dear Aleen,
Thanks for the tickets for next week's game. I'm sorry you and your father can't go, but I'm really happy to have the tickets. I'm going to ask my cousin, Tommy, to go with me. I'Il think of you as we watch the Black Socks win the game. (I hope!)
John
3b Fill in the blanks in this thank-you note.
Dear Sarah,
_____ for inviting me to your house on Friday. I really meeting your family. And
your baby sister is really _____ . I had a _____time. I'm ______. I had to leave early, but I had
a family dinner. My grandfather was having his 90th birthday party!
Yours sincerely,
Maria
材料:
六年级三班是学校出了名的“捣蛋”班级,很多老师都不愿意到该班去上课。这学期,学校安排张老师担任三班的语文老师。第一天上课时,张老师还在
楼梯间就听到班里传出的喊叫声。进入班级以后发现粉笔、板擦全都被藏了起来。开始上课以后,在课堂上,同学们说小话、吃东西、随意走动的现象比比皆是,即使听课的同学也时常问一些不主题无关的问题,引起大家哄埻大笑,弄得张老师筋疲力尽,哭笑不得。
问题:
(1)简述新教师遇到突发事件,该如何处理?
(2)新教师成长的途径都有哪些?
案例:
某教师针对下列习题的教学片段。
习题:如图所示,匀强磁场的磁感应强度B(T),在垂直于磁场方向的平面内,有一个长度为1(m)的金属棒OP绕垂直于纸面的转动轴O沿逆时针方向以角速度ω(rad/s)匀速转动,试求金属棒OP转动时所产生的感应电动势的大小和方向。
师:前面已学过感应电动势的求解方法。请同学们回忆下如何运用这些知识求解该问题。
生1:运用E=△ψ/△t求解,金属棒经△t时间扫过的面积为(1/2)L2ω△t,所以
△ψ=(1/2)BL2ω△t,那么E=(1/2)BL2ω
师:很好,这是用法拉第感应定律的定义式求金属棒感应电动势的大小。
生2:运用公式E=BLv计算,这个棒平均切割磁感线的速度为ωL/2,所以E=BLv=1/2。
师:很好,比较两同学的解答。可知两种解法所求感应电动势的大小相同,因而这两种解法都对。
问题:
(1)对上述片段进行评析。
(2)针对上述教学片段中存在的问题,给出改进的思路。
