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北师大初中数学九年级上册正方形的判定2教案

  • 人音版小学音乐五年级下册我是中国人说课稿

    人音版小学音乐五年级下册我是中国人说课稿

    5. 跟着范唱,完整地唱好全歌7. .以自豪的情感跟着伴奏带唱好京歌《我是中国人》。(音乐教育以审美为核心,主要作用于人的情感世界,使学生充分体验蕴涵于音乐音响形式中的美和丰富的情感,为音乐所表达的真善美理想境界所吸引、所陶醉,与之产生强烈的情感共鸣,使音乐艺术净化心灵、陶冶情操,以利于学生养成健康、高尚的审美情趣和积极乐观的生活态度。)8.鼓励学生单独演唱,师生共同评价,锻炼学生能够对自己和他人的演唱作简单评价。三、表演唱。因为戏歌和戏曲是分不开得,所以我向学生讲解戏曲中跑圆场这个动作,并辅导学生表演,用于歌曲的前奏。作为本科知识的延续,拓展学生的知识面,用戏歌作为学生走进戏曲的敲门砖。最后教师提出希望,鼓励学生从唱戏歌开始,慢慢地去了解戏曲,学习戏曲,敲开戏曲艺术的大门。

  • 倾斜角与斜率教学设计人教A版高中数学选择性必修第一册

    倾斜角与斜率教学设计人教A版高中数学选择性必修第一册

    (2)l的倾斜角为90°,即l平行于y轴,所以m+1=2m,得m=1.延伸探究1 本例条件不变,试求直线l的倾斜角为锐角时实数m的取值范围.解:由题意知(m"-" 1"-" 1)/(m+1"-" 2m)>0,解得1<m<2.延伸探究2 若将本例中的“N(2m,1)”改为“N(3m,2m)”,其他条件不变,结果如何?解:(1)由题意知(m"-" 1"-" 2m)/(m+1"-" 3m)=1,解得m=2.(2)由题意知m+1=3m,解得m=1/2.直线斜率的计算方法(1)判断两点的横坐标是否相等,若相等,则直线的斜率不存在.(2)若两点的横坐标不相等,则可以用斜率公式k=(y_2 "-" y_1)/(x_2 "-" x_1 )(其中x1≠x2)进行计算.金题典例 光线从点A(2,1)射到y轴上的点Q,经y轴反射后过点B(4,3),试求点Q的坐标及入射光线的斜率.解:(方法1)设Q(0,y),则由题意得kQA=-kQB.∵kQA=(1"-" y)/2,kQB=(3"-" y)/4,∴(1"-" y)/2=-(3"-" y)/4.解得y=5/3,即点Q的坐标为 0,5/3 ,∴k入=kQA=(1"-" y)/2=-1/3.(方法2)设Q(0,y),如图,点B(4,3)关于y轴的对称点为B'(-4,3), kAB'=(1"-" 3)/(2+4)=-1/3,由题意得,A、Q、B'三点共线.从而入射光线的斜率为kAQ=kAB'=-1/3.所以,有(1"-" y)/2=(1"-" 3)/(2+4),解得y=5/3,点Q的坐标为(0,5/3).

  • 队列队形教案三篇

    队列队形教案三篇

    三、教材分析:  主教材“七彩阳光”广播体操是一年级体育教学的一项重点教材,也是一年级必学内容之一。广播体操是一年级学生进入小学后体育课上首个重要任务,对于刚进入小学的那些孩子们来说,存在着很大的难度。第三套小学生广播体操《七彩阳光》,是一套具有教强时代气息的广播操,它具有教育性、科学性、健身性、艺术性。这套操是根据学生的身心和生理特点来创编的,  通过广播体操可以发展学生身体基本活动能力,提高灵敏、速度、力量、耐力等身体素质,能增强内脏器官的功能。同时还能培养学生勇敢顽强机智、果断、胜不骄、败不馁等优良品质和团结一致、密切配合的集体主义精神。

  • 新人教版高中英语选修2Unit 2 Learning about Language教学设计

    新人教版高中英语选修2Unit 2 Learning about Language教学设计

    The activity theme of this section is to design various activities around the key words in the first text. Therefore, the activities require students to pay attention to the spelling of words. On the other hand, let students grasp the meaning of words more accurately through sentences and short texts. This kind of teaching design also helps to improve the ability of using English thinking.1. Cultivating students' ability to use word formation to induce and memorize vocabulary, and the ability to use lexical chunks to express meaning.2. Guide the students to think independently and use the correct form of words to complete sentences3. Cultivate students' habit of using lexical chunks to express language completely, guide students to draw words in sentences quickly, pay attention to word collocation, so as to accumulate more authentic expressions4. Instruct students to create sentences with the chunks.1. Enable students to use the language points in the real situation or specific contexts flexibly and appropriately.2. Guiding the Ss to use unit topic words and the sentence patterns in a richer context.Step1: Think of a word that best fits each definition.1. to remember sth2.to accept, admit, or recognize sth or the truth/existence of sth3. the process of changing sth or yourself to suit a new situation4 .to make sb feel less worried or unhappy5. a strong desire to achieve sth

  • 新人教版高中英语选修2Unit 2 Reading and thinking教学设计

    新人教版高中英语选修2Unit 2 Reading and thinking教学设计

    Her tutor told her to acknowledge __________ other people had said if she cited their ideas, and advised her _______(read) lots of information in order to form __________wise opinion of her own.Now halfway __________ her exchange year, Xie Lei felt much more at home in the UK. She said __________ (engage) in British culture had helped and that she had been__________ (involve) in social activities. She also said while learning about business, she was acting as a cultural messenger __________(build) a bridge between the two countries. keys:Xie Lei, a 19­year­old Chinese student, said goodbye to her family and friends in China and boarded (board) a plane for London six months ago in order to get a business qualification. She was ambitious(ambition) to set up a business after graduation. It was the first time that she had left (leave) home.At first, Xie Lei had to adapt to life in a different country. She chose to live with a host family, who can help with her adaptation (adapt) to the new culture. When she missed home, she felt comforted (comfort) to have a second family. Also Xie Lei had to satisfy academic requirements. Her tutor told her to acknowledge what other people had said if she cited their ideas, and advised her to read lots of information in order to form a wise opinion of her own.Now halfway through her exchange year, Xie Lei felt much more at home in the UK. She said engaging (engage) in British culture had helped and that she had been involved (involve) in social activities. She also said while learning about business, she was acting as a cultural messenger building a bridge between the two countries.

  • 新人教版高中英语选修2Unit 2 Reading for writing教学设计

    新人教版高中英语选修2Unit 2 Reading for writing教学设计

    The theme of this section is to express people's views on studying abroad. With the continuous development of Chinese economic construction, especially the general improvement of people's living standards, the number of Chinese students studying abroad at their own expense is on the rise. Many students and parents turn their attention to the world and regard studying abroad as an effective way to improve their quality, broaden their horizons and master the world's advanced scientific knowledge, which is very important for the fever of going abroad. Studying abroad is also an important decision made by a family for their children. Therefore, it is of great social significance to discuss this issue. The theme of this section is the column discussion in the newspaper: the advantages and disadvantages of studying abroad. The discourse is about two parents' contribution letters on this issue. They respectively express their own positions. One thinks that the disadvantages outweigh the advantages, and the other thinks that the advantages outweigh the disadvantages. The two parents' arguments are well founded and logical. It is worth noting that the two authors do not express their views on studying abroad from an individual point of view, but from a national or even global point of view. These two articles have the characteristics of both letters and argumentative essays1.Guide the students to read these two articles, and understand the author's point of view and argument ideas2.Help the students to summarize the structure and writing methods of argumentative writing, and guides students to correctly understand the advantages and disadvantages of studying abroad3.Cultivate students' ability to analyze problems objectively, comprehensively and deeply

  • 新人教版高中英语选修2Unit 2 Using langauge-Listening教学设计

    新人教版高中英语选修2Unit 2 Using langauge-Listening教学设计

    ? B: Absolutely! Getting involved with Chinese cultural activities there definitely helped a lot. I got to practice my Chinese on a daily basis, and I could learn how native Chinese speakers spoke.? A: What do you feel is your biggest achievement?? B: Learning Chinese characters! I have learnt about 1,500 so far. When I first started, I didn't think it was even going to be possible to learn so many, but now I find that I can read signs, menus, and even some easy newspaper articles.? A: What are you most keen on?? B: I've really become keen on learning more about the Chinese culture, in particular Chinese calligraphy. As I have learnt Chinese characters, I have developed a great appreciation for their meaning. I want to explore Chinese characters by learning how to write them in a more beautiful way. ? A: Finally, what do you want to say to anyone interested in learning Chinese?? I have really become keen on learning more about the Chinese culture, in particular Chinese Calligraphy. As I have learnt Chinese character, I have developed a great appreciation for their meaning. I want to explore Chinese characters by learning how to write them in a more beautiful way.? A: Finally, what do you want to say to anyone interested in learning Chinese?? B: I'd say, give it a shot! While some aspects may be difficult, it is quite rewarding and you will be happy that you tried.? A: Thanks for your time. ? B:You're welcome.

  • 幼儿园中班数学教案:小动物住新家

    幼儿园中班数学教案:小动物住新家

    2、运用目测数群再接着数完全部的方法,正确判断7以内的数量。   3、能学习别人的好方法,乐意使用新的方法数数。活动准备:  1、经验准备:幼儿已经认识了数字1——7。   2、物质准备:   教具:房屋形分类底版,7以内的动物卡片若干。   学具:房屋形分类底版,7以内的动物卡人手一套,数字卡片1——7人手一套。   环境:在黑板上创设动物园的环境,并在每个区域贴上数字。  活动过程: 1、游戏:参观动物园。复习认识数字1——7。   师:今天,老师带你们到动物园去玩,好吗?(出示黑板)看,动物园里有几个房间呀?这是几号房间呢?(引导幼儿复习认读数字。)  2、游戏:和动物做朋友。学习运用目测数群再接着数完全部的方法,正确感知7以内的数量。

  • 中班数学教案:长短宽窄厚薄排序

    中班数学教案:长短宽窄厚薄排序

    2.让幼儿学习按照长短、宽窄、厚薄的差异进行正逆排序,初步体验序列中物体的相对性和可变性。 3.鼓励幼儿完成多种活动内容,并大胆讲述操作过程和操作结果。活动准备 宽窄的纸条若干(同颜色、同长度;同颜色、不同长度);按长短、宽窄、厚薄、高矮、大小、多少等差异排序好的材料纸各一张

  • xx市第一高级中学2024年上半年工作总结和下半年工作计划

    xx市第一高级中学2024年上半年工作总结和下半年工作计划

    (一)完成校本部和莲溪校区的招生计划。暑假期间,充分利用微信公众号、微信朋友圈、视频号、抖音等各类宣传媒介,对招生进行宣传报道,营造良好的舆论氛围。开放咨询渠道,严格按照招生方案进行招生,确保圆满完成招生计划。(二)继续招纳贤才,进一步充实教师队伍。下半年将继续协助人社局、教体局开展校园招聘和社会招聘,广纳贤才,为学校的可持续发展菱定基础。(三)持续规范教学常规,提高教育教学质量一是抓好教学常规,教学常规的中心环节在课堂,力求课堂效果最大化。二是扎实做好尖子生培养工作。在尖子生培养方面,做到“精心”、“精品”,致力于寻求尖子生培养的良方。

  • 超市年会策划方案

    超市年会策划方案

    模仿歌曲《东北人是活雷锋》唱腔,突出东北四个分部。并在各分部唱词的时侯分别显示各分部突出所在地区特色的幻灯片。

  • 最新年会策划方案

    最新年会策划方案

    年会开始前,年会筹备小组成员必须确保每人持有一份年会流程具体执行方案。

  • 春节年会策划方案

    春节年会策划方案

    备注:1、在节目演出期间,每半个小时穿插一次幸运观众的抽奖,每次抽取2位幸运观众共12位

  • 年终聚会策划方案

    年终聚会策划方案

    节目预演:这个环节非常之重要,因为大家都不是专业的演员,因此,总指挥必须提前了解整个活动的全部,以便提前预知哪些环节需要注意,哪些环节需要增删,并能保证现场的有序进行等。

  • 年会策划方案模板

    年会策划方案模板

    13:00—13:10:大会进行第一项。音乐停,鞭炮响(背景鞭炮声)。主持人宣布员工大会开始,向参会的全体员工介绍出席大会的公司主要领导同志,并鼓掌欢迎;(员工欢迎礼毕)请总经理致《开幕辞》

  • 创意年会策划方案

    创意年会策划方案

    1、为了减少员工流失,用活动来留住员工;让员工兴奋采取行动,让更多的员工看到跟我们公司干的希望;展示公司辉煌,让员工家庭更支持自己在公司干;所以年会一定要与往年不一样,一定要让员工有感觉;让员工明年赚到更多的钱!

  • 公司年会策划方案

    公司年会策划方案

    在活动开始之前,需要对所有设备进行调试。包括演示的笔记本电脑是否设置了自动关机或者屏幕保护程序,活动现场需要演示的PPT文件投影出来是否足够清晰等看似非常微小,却又在现场活动得以顺利运行过程中起到关键作用的很多细节环节。

  • 企业年会策划方案

    企业年会策划方案

    1、总负责:xxx  主要工作:总体协调,人员调配。  2、策划和现场协调:xxx  主要工作:年会策划、会议节目安排、舞台协调、现场资讯采集。  3、后勤:xxx  主要工作:餐厅和KTV预定、物资采购、车辆安排、人员接待。

  • 2023最新年会策划方案

    2023最新年会策划方案

    客户签到,(客户要佩戴胸花)走红地毯,签名(场外由主持人引导,红地毯两侧主管们热烈欢迎伙伴们、嘉宾入场,由主持人引导进会场,会场门口宣布客户进场,聚光灯引导客户座位上(注:大屏幕和这期间场内必须放非常非常动感的音乐)(门口要有三位礼仪的人引位)

  • 高中教师个人教学工作计划5篇

    高中教师个人教学工作计划5篇

    二、学情分析  在校领导的正确领导下,本学期我校生源比去年有了重大的变化.高一年级招收了400多名新生,学校带来了新的希望.然而,我清醒地认识到任重而道远的现实是,我校实验班分数线仅为140分,普通班入学成绩仍居附近各中学之末.要实现我校教学质量的根本性进步,非一朝一夕之功.实验班的教学当然是重中之重,而普通班又绝不能一弃了之.现在的学情与现实决定了并不是付出十分努力就一定有十分收获.但教师的责任与职业道德时刻提醒我,没有付出一定是没有收获的.作为新时代的教师,只有付出百倍的努力,苦干加巧干,才能对得起良心,对得起人民群众的期望.

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