-
北师大版初中数学九年级下册从梯子的倾斜程度谈起说课稿
注意强调概念理解不到位的方面：① tanA是一个完整的符号，它表示∠A的正切，记号里习惯省去角的符号“∠”，若用三个字母表示角则“∠”不能省略，如“∠ABC的正切表示为tan∠ABC”；② tanA没有单位，它表示一个比值，即直角三角形中∠A的对边与邻边的比；③ tanA不表示“tan”乘以“A”。通过给出直角三角形的任两边的长，让学生求∠A，∠B的正切及时强化学生对概念的3、正切函数的应用理解通过实际问题的解答进一步了解梯子的倾斜程度、坡度与正切函数的关系；对学生进行正切的变式训练,让学生理解不管角的位置如何改变，只要角的大小不变则其正切值是不变的。练习的安插注意梯度，让不同的学生有不同的发展。4、最后小结本节课的知识要点及注意点五、达标测试具体思路：把几个问题分为四个等级，方便对学生的了解；通过评价让学生对自己的学习也做到心中有数。
北师大版初中数学九年级下册二次函数所描述的关系说课稿
1、圆的半径是 ，假设半径增加 时，圆的面积增加 。（1）写出 与 之间的关系表达式；（2）当圆的半径分别增加 ， ， 时，圆的面积增加多少。【设计意图】此题由具体数据逐步过渡到用字母表示关系式，让学生经历由具体到抽象的过程，从而降低学生学习的难度。2、篱笆墙长 ，靠墙围成一个矩形花坛，写出花坛面积 与长 之间的函数关系式，并指出自变量的取值范围。【设计意图】此题稍微复杂些，旨在让学生能够开动脑筋，积极思考，让学生能够“跳一跳，够得到”。（六） 小结思考本节课你有哪些收获？还有什么不清楚的地方?【设计意图】让学生来谈本节课的收获，培养学生自我检查、自我小结的良好习惯，将知识进行整理并系统化。而且由此可了解到学生还有哪些不清楚的地方，以便在今后的教学中补充。（七）布置作业，提高升华必做题：课本P39-40随堂练习第1题，习题2.1第1题；
北师大版初中数学九年级下册圆周角和圆心角的关系说课稿
（设计意图：因为圆中有关的点、线、角及其他图形位置关系的复杂，学生往往因对已知条件的分析不够全面，忽视某个条件，某种特殊情况，导致漏解。采用小组讨论交流的方式进行要及时进行小组评价。）（3） 议一议（ 如图，OA、OB、OC都是圆O的半径∠AOB＝2∠BOC, 求证：∠ACB＝2∠BAC。）（设计意图：通过练习，使学生能灵活运用圆周角定理进行几何题的证明，规范步骤，提高利用定理解决问题的能力。）（三）说小结首先，通过学生小组交流，谈一谈你有什么收获。（提示学生从三方面入手：1、学到了知识；2、掌握了哪些数学方法；3、体会到了哪些数学思想。）然后，教师引导小组间评价。使学生对本节内容有一个更系统、深刻的认识，实现从感性认识到理性认识的飞跃。（四）、板书设计为了集中浓缩和概括本课的教学内容，使教学重点醒目、突出、合理有序，以便学生对本课知识点有了完整清晰的印象。我只选择了本节课的两个知识点作为板书。
北师大版初中数学九年级下册直线与圆的位置关系说课稿
设计意图这一组习题的设计，让每位学生都参与，通过学生的主动参与，让每一位学生有“用武之地”，深刻体会本节课的重要内容和思想方法，体验学习数学的乐趣，增强学习数学的愿望与信心。4．回顾反思，拓展延伸（教师活动）引导学生进行课堂小结，给出下列提纲，并就学生回答进行点评。（1）通过本节课的学习，你学会了哪些判断直线与圆位置关系的方法？（2）本节课你还有哪些问题？（学生活动）学生发言，互相补充。（教师活动）布置作业（1）书面作业：P70练习8.4.41、2题（2）实践调查：寻找圆与直线的关系在生活中的应用。设计意图通过让学生课本上的作业设置，基于本节课内容和学生的实际，对课后的书面作业分为三个层次，分别安排了基础巩固题、理解题和拓展探究题。使学生完成基本学习任务的同时，在知识拓展时起激学生探究的热情，让每一个不同层次的学生都可以获得成功的喜悦。
北师大版初中数学九年级下册特殊角的三角函数值说课稿
教学过程我主要分为六部分：一、新课引入，二、探究新知 ，三、巩固新知，四、感悟收获，五、布置作业，六、板书设计 （一）、新课引入教师提问：一个直角三角形中，一个锐角正弦、余弦、正切值是怎么定义的？ sinA如图在 Rt△ABC中，∠C=90°。（1）a、b、c三者之间的关系是 ，∠A+∠B= 。 （2）sinA=sinB= ， cosB= ，tanB= 。 （3）若A=30°，则B（4）sinA和cosB有什么关系?____________________；【设计意图】回顾上节课所学的内容，便于后面教学的开展。 （二）、探究新知活动一、探索特殊角的三角函数，并填写课本表格[问题] 1、观察一副三角尺，其中有几个锐角?它们分别等于多少度? [问题] 2、sin30°等于多少呢?你是怎样得到的?与同伴交流. [问题] 3、cos30°等于多少?tan30°呢? [问题] 4、我们求出了30°角的三个三角函数值，还有两个特殊角——45°、60°，它们的三角函数值分别是多少?你是如何得到的? 1、特殊角的三角函数值表：
北师大版初中数学九年级下册正多边形和圆说课稿
第一道例题提示学生把地基看成一个几何图形，即正六边形，逐步引导学生完成例题的解答。例题1：有一个亭子它的地基是半径为4米的正六边形，求地基的周长和面积（精确到0.1平方米）。第二道例题，我让学生独立完成，我在下面巡视，个别辅导，同时我将关注不同层次学生对本节知识的理解、掌握程度，及时调整教学。最后，引导学生总结这一类问题的求解方法。这两道例题旨在将实际问题转化成数学问题，将多边形化归成三角形来解决，体现了化归思想的应用。（七）、课堂小结（1）学完这节课你有哪些收获？（八）布置作业：我针对学生素质的差异设计了有层次的训练题，留给学生课后自主探究，这样即使学生掌握基础知识，又使学有佘力的学生有所提高，从而达到拔尖和“减负”的目的。
小学数学苏教版六年级下册《第六单元第三课反比例关系、反比例量》教学设计说课稿
提问：1．怎样判断两种相关联的量是否成正比例？用字母怎样表示正比例关系？ 2．判断下面两种量是否成正比例？为什么？ (1)时间一定，行驶的路程和速度 (2)除数一定，被除数和商 3．单价、数量和总价之间有怎样的关系？在什么条件下，两种量成正比例？ 4．导入新课： 如果总价一定，单价和数量的变化有什么规律？这两种量存在什么关系？今天，我们就来研究这种变化规律。
基础教育劳技课教学工作计划范文
1、态度与价值观：通过学习交流、合作、讨论的方式，积极探索，改进学生的学习方式，提高学习质量，逐步形成正确地劳动技术价值观。 2、知识与技能：主要内容包括“金属材料与加工”“服装裁剪与缝制”“家用电冰箱”共三章，各章都力图讲清知识的来龙去脉，将基础知识和怎样操作呈现给同学们。
语文教师教学工作反思参考例文
于是我马上说：“这个问题提得好，又有趣，哪一个同学能回答?”有几个同学先后举手。“方仲永的父亲不让他学习，拉着他到处访问人，四处赚钱，我想他心里一定非常恨他的父亲。” “他父亲拉着仲永四处拜谒，同县人都赞不绝口，仲永心里一定很高兴，以为自身很了不起。”我看同学们的回答都有道理，便立即给予肯定、褒扬。“要是你们是方仲永，心里会怎样想?”
网上教学教师个人心得体会参考范文
但我校网络学习在体现共性特征的同时，也彰显着学科特性，在教研组的统筹规划下，各学科教学工作扎实有效。语文学科坚持落实语文核心素养，针对不同年级学生及当前考纲要求，对学生提出针对性的指导方法，例如高三年级结合当前考试要求，强化学生对时事新闻的解读能力，非毕业年级强化学生的日常学习积累能力。数学学科根据不同学生的实际情况，有针对性的提出作业训练，同时通过抽查等方式，落实对学生的训练成效。英语学科强化对不同考点的专题训练，有计划的开展对听力、阅读理解、完形填空等题型的专项训练，重在积累。综合学科加强合作，强化素材整理及综合训练，将时间进行有机协调，落实综合学习成效。
电脑培训教育学校教师管理制度
一、全体教师必须服从上级和学校的管理，自觉做到依规办事、依法治教，遵守上级和学校的各项规章制度，做到遵纪守法、教书育人、为人师表，崇尚科学，反对邪教。 二、学校内部教师人事调整，由学校领导班子成员根据教师的专长和表现，召开专门会议研究讨论决定，人事调配实行一次性讨论，一经讨论确定，原则上不得变动，特殊情况需要调整的要经过学校领导班子集体讨论决定。 三、每学期对教师的各方面表现进行一次业绩考评，考评结果由高分到低分排队，末位的实行待岗；考评结果作为教师评聘、评优、评先、考核、晋升的重要依据。 四、实行教师聘任制，学校根据教师的平时的表现和业绩考评结果，由校领导班子根据学校和岗位的需要，确定聘任教师的名单，各教师与学校签定聘任协议。
新人教版高中英语必修3Unit 1 Festivals and Celebrations教学设计二
1. Ss look at the picture and scan the passage to understand the main idea while teacher is giving the following questions to inspire Ss to think.*Where are those people?*What are they doing?*Why are they so excited?2. Ss complete the passage with the appropriate -ing form. Then discuss and check the answers with class.Answers: boring, interesting, taking, exciting, amazing3. The teacher raises questions for the students to discuss and encourages them to express their opinions.*Do you like La Tomatina? Why or why not?4. Each group representative reports the discussion result, the teacher gives feedback and the evaluation.Step 6 PracticeActivity 41. Ss complete the Ex 2 in Using structures.2. Check the answers after finishing the exercises.①The dragon boat races are the most exciting part of the Dragon Boat Festival.② The children were excited to go Easter egg hunting.③What an amazing performance! This is the best music festival I have ever been to.④We were amazed by her funny-looking hat.⑤His inspiring speech at the conference won the admiration/ favour of the audience.⑥This is a challenging game to test your memory and observation capabilities. 3. T asks Ss to finish Ex 3 and 4 in Using structures by themselves, then check the answers with class.Step 6 Homework1. Understand and master the functions and usage of the -ing form;2. Finish the other exercises in Using structures.1、通过本节内容学习，学生是否理解和掌握动词-ing形式作定语和表语的功能和意义；2、通过本节内容学习，学生能否在理解文段内容的基础上，根据上下文语境和表达逻辑，能正确运用动词-ing形式描述节日庆典。3、通过本节内容学习，学生是否归纳和积累用于表达情绪的相关词汇。
新人教版高中英语必修3Unit 2 Morals and Virtues教学设计二
Activity 41. Students complete the task of activity 4, then teachers and students check the answers. 2. The teacher organized the students to work together and asked them to use the tables and mind maps sorted out before to retold the important choices in Lin Qiaozhi's life and their resultsStep 5 Language points1. The teacher asks the students to read the text carefully, find out the core words and long and difficult sentences in the text and draw lines, understand the use of vocabulary, and analyze the structure of long and difficult sentences. 2. The teacher explains and summarizes the usage of core vocabulary and asks the students to take notes. 3. The teacher analyzes and explains the long and difficult sentences that the students don't understand, so that the students can understand them better. Step 6 Homework1. Read the text again, in-depth understanding of the text; 2. Master the use of core vocabulary and understand the long and difficult sentences. 3. Complete relevant exercises in the guide plan. 1、通过本节内容学习，学生是否理解和掌握阅读文本中的新词汇的意义与用法；2、通过本节内容学习，学生能否结合文本特点总结林巧稚的人生原则和人格品质特征；3、通过本节内容学习，学生能否针对人生抉择发表自己的看法；能否全面地、客观地、理性地看待问题，进而对道德和人性有更加深入的思考和理解。
新人教版高中英语必修3Unit 2 Morals and Virtues教学设计三
The joke set her crying.这个玩笑使她哭起来。Step 5 ReadingActivity 31. Students read the small text in activity 3. The teacher provides several small questions to check whether students understand the content of the text and the ideographic function of the -ing form in the text.*Where are those people?*Why did Dr Bethune come to China?*How did he help the Chinese people during the war?*What did Chairman Mao Zedong say about him?2. Ss try to rewrite some sentences using the -ing form. Then check the answers. When checking the answers, the teacher can ask different students to read the rewritten sentences and give comments.Answers:1. he became very interested in medicine, deciding to become a doctor.2. …after hearing that many people were dying in the war.3. Helping to organise hospitals, he taught doctors and nurses, and showed people how to give first aid./ He helped to organise hospitals, teaching doctors and nurses, and showing people how to give first aid.4. …praising Dr Bethune as a hero to be remembered in China.Step 6 PracticeActivity 4Students complete grammar activities 2 and 3 on page 69 of the workbook.Step 6 Homework1. Understand and master the functions and usage of the -ing form;2. Finish the other exercises in Using structures.1、通过本节内容学习，学生是否理解和掌握动词-ing形式作宾语补足语语和状语语的功能和意义；2、通过本节内容学习，学生能否正确使用动词-ing形式描述人物的行为、动作及其经历；3、通过本节内容学习，学生能否独立完成练习册和导学案中的相关练习。
新人教版高中英语必修3Unit 2 Morals and virtues教学设计一
(2) students are divided into groups according to the requirements of activity 3. Each student shares a story of personal experience or hearing-witnessing kindness, and then selects the most touching story in the group and shares it with the whole class. Before the students share the story, the teacher can instruct them to use the words and sentence patterns in the box to express. For example, the words in the box can be classified:Time order: first of all, then, after that, later, finally logical relationship :so, however, although, butTeachers can also appropriately add some transitional language to enrich students' expression:Afterwards, afterwards, at last, in the end, eventuallySpatial order: next to, far from, on the left, in front ofOtherwise, nevertheless, as a result, therefore, furthermore, in addition, as well asSummary: in a word, in short, on the whole, to sum up, in briefStep 8 Homework1. Understand the definition of "moral dilemma" and establish a correct moral view;2. Accumulate vocabulary about attitudes and emotions in listening texts and use them to express your own views;3. Complete relevant exercises in the guide plan.1、通过本节内容学习，学生能否理解理解“道德困境”的定义；2、通过本节内容学习，学生能否通过说话人所表达的内容、说话的语气、语调等来判断其态度和情绪；3、通过本节内容学习，学生能否针对具体的道德困境发表自己的看法和见解，能否掌握听力理训练中的听力策略。
新人教版高中英语必修3Unit 3 Diverse Cultures教学设计三
The price is the same as(the price was)before the war.价格与战前相同。(4)定语从句中的“关系代词＋助动词be”可以省略。The ticket(that/which was)booked by his sister has been sent to him.他妹妹订的那张票已送到了他那里。Step 5 PracticeActivity 3(1) Guide students to complete the four activities in the Using Structures part of exercise book, in which activities 1 and 2 focus on ellipsis in dialogue answers, activity 3 focus on signs and headlines, two typical situations where ellipsis is used, and activity 4 focus on ellipsis in diary, an informal style.(2) Combine the examples in the above activities, ask students to summarize the omitted situations in groups, and make their own summary into a poster, and post it on the class wall after class to share with the class.(This step should give full play to the subjectivity of students, and teachers should encourage students to conclude different ellipsis phenomena according to their own understanding, they can conclude according to the different parts omitted in the sentence.)Step 6 Homework1. Understand and master the usages of ellipsis;2. Finish the other exercises in Using structures of Workbook.1、通过本节内容学习，学生是否理解和掌握省略的用法；2、通过本节内容学习，学生能否根据上下文语境或情景恢复句子中省略的成分，体会使用省略的效果；3、通过本节内容学习，学生能否独立完成练习册和导学案中的相关练习。
新人教版高中英语必修3Unit 3 Diverse Cultures教学设计二
(2)Consolidate key vocabulary.Ask the students to complete the exercises of activity 6 by themselves. Then ask them to check the answers with their partners.(The first language:Damage of the 1906 San Francisco earthquake and fire.A second language: Yunnan - one of the most diverse provinces in China).Step 5 Language points1. The teacher asks the students to read the text carefully, find out the more words and long and difficult sentences in the text and draw lines, understand the use of vocabulary, and analyze the structure of long and difficult sentences.2. The teacher explains and summarizes the usage of core vocabulary and asks the students to take notes.3. The teacher analyzes and explains the long and difficult sentences that the students don't understand, so that the students can understand them better.Step 6 Homework1. Read the text again, in-depth understanding of the text;2. Master the use of core vocabulary and understand the long and difficult sentences.3. Complete relevant exercises in the guide plan.1、通过本节内容学习，学生是否理解和掌握阅读文本中的新词汇的意义与用法；2、通过本节内容学习，学生能否结合文本特点了解文章的结构和作者的写作逻辑；3、通过本节内容学习，学生能否了解旧金山的城市风貌、文化特色，以及加利福尼亚州的历史，体会多元文化对美国的影响。
新人教版高中英语必修3Unit 3 Diverse Cultures教学设计四
该板块的活动主题是“介绍一个有显著文化特征的地方”( Describe a place with distinctive cultural identity)。该板块通过介绍中国城继续聚焦中国文化。本单元主题图呈现的是旧金山中国城的典型景象, Reading and Thinking部分也提到中国城,为该板块作铺垫。介绍中国城的目的主要是体现中国文化与美国多元文化的关系,它是美国多元文化的重要组成部分。中国城也是海外华人的精神家园和传播中国文化的重要窗口,外国人在中国城能近距离体验中国文化。1. Read the text to understand the cultural characteristics of Chinatown in San Francisco and the relationship between Chinese culture and American multiculturalism;2. Through reading, learn to comb the main information of the article, understand the author's writing purpose and writing characteristics;3. Learn to give a comprehensive, accurate, and organized description of the city or town you live in;Learn to revise and evaluate your writing.Importance:1. Guide the students to read the introduction of Chinatown in San Francisco and grasp its writing characteristics;2. Guide students to introduce their city or town in a comprehensive, accurate and organized way;3. Learn to comb the main information of the article, understand the author's writing purpose, and master the core vocabulary.
新人教版高中英语选修2Unit 4 Reading and thinking教学设计
【词汇精讲】highlight n.最好或最精彩的部分 vt.突出;强调;使醒目One of the highlights of the trip was seeing the Taj Mahal.这次旅行的亮点之一是参观泰姬陵。Your resume should highlight your skills and achievements.你的简历应该突出你的技能和成就。The report highlights the major problems facing society today.报告强调了当今社会所面临的主要问题。I’ve highlighted the important passages in yellow.我用黄色标出了重要段落。7.Edmonton is freezing cold in winter,with daily temperatures averaging -10 ℃.埃德蒙顿冬季寒冷,日平均气温为-10°C。【词汇精讲】freezing adj.极冷的;冰冻的Leave a basin of water outside in freezing weather.在冰冻的天气里,放一盆水在室外。It’s freezing cold outside so wear a warm coat.外面超冷的,所以穿一个暖和一点的外套吧。8.It was not until 9:30 a.m.that they finally reached the capital of Ontario,Toronto.直到上午9时30分,他们才终于到达多伦多的首府安大略省。【句式剖析】本句是一个强调句,强调的是句子的时间状语until 9:30。含有not...until...的句子的强调句为It is not until...that...,that后面的句子要用肯定形式。It was not until then that I suddenly realized nobody was happier than I was.直到那时我才突然意识到没有人比我更幸福了。
新人教版高中英语选修2Unit 5 Reading for writing教学设计
你校英语报计划出版一期急救常识专刊,现面向全校学生公开征集稿件,你有意参加。请你根据下面提示内容,用英语写一篇短文,介绍在车祸现场对伤者进行急救的方法和步骤。1.确保现场的安全;2.询问伤者,确保其呼吸正常;3.检查伤口,如流血则应采取止血措施;4.如需急救,确保其处于康复位置。注意:1.词数80左右;2.可以适当增加细节,以使行文连贯。参考词汇:康复位置 recovery positionAs we all know, having a knowledge of first aid can make a great difference in our daily life. If a traffic accident happens and someone is injured, the following steps can be used to treat the injured.In the first place, we should make sure that the accident scene is safe so that we won’t get hurt. We should ask the injured person if he is OK, and see if he is breathing. What’s more, we should check for cuts and wounds. If he is bleeding badly, it is vital that we should try to stop the bleeding by applying pressure to the injury. This is because if a person loses too much blood, he may die. If necessary, take the injured person to the hospital as soon as possible.Do remember: when giving first aid, please be sure to place the person in a recovery position.