实用说课稿ppt【参考4篇】

参考资料，少熬夜！实用说课稿ppt【参考4篇】【导读指引】三一刀客最漂亮的网友为您整理分享的“实用说课稿ppt【参考4篇】”文档资料，供您学习参考，希望此文档对您有所帮助，喜欢就分享给朋友们吧！说课稿ppt【第一篇】《每周干家务活的时间》是北师大版教材八年级数学下册第五章第一节的内容，本套教科书采用螺旋上升的编排方式。本节课通过丰富的实例，了解总体、个体、样本，普查和抽样调查等概念，让学生体会不同的抽样可能得到不同的结果，感受抽样的必要性。通过学习，让学生会选择合适的调查方法，解决生活中的实际问题。在同学们充分的讨论、广泛的交流下扩大了学生的思维视野，提高了学生的认知，培养了学生的合作精神和交流意识，发展统计思想，体会德育价值。1、了解普查、抽样调查、总体、个体、样本等概念，以及普查和抽样调查的应用。并选择合适的调查方法，解决有关现实问题。2、经历调查、收集数据的过程，感受抽样的必要性，选择合适的调查方法，解决有关现实问题。3、进一步发展统计思想，培养学生热爱劳动、勇于实践的优良品质。1、重点：了解普查、抽样调查、总体、个体、样本等概念，感受抽样的必要性。2、难点：选择合适的调查方法，应用多样的方式解决实际问题。指导探索法；讨论法、本章导入随着信息技术的发展，数字化时代的到来，人们每天面对着大量的数据，从国民生产总值到天气预报，从人口预测到股票投资，统计存在于国民经济和日常生活的各个方面。数据处理也因此变得更加重要。具有统计的基本知识已成为每个现代公民必备的素质。（在导入新课的过程中体现了学习数据的收集与处理的重要性和必要性。）1、活动与探究同学们，你们每天在家都帮父母做家务活吗？主要做些什么呢？每周大约多长时间呢？你们每周干家务活时间的平均数、中位数、众数是什么？教师活动：提问平均数、中位数、众数的概念。学生活动：全班先分四组进行数据汇总，得到本组同学每周干家务活的平均数、中位数和众数，在进行各小组汇报、交流。通过对这些调查活动的分析，引入普查、抽样调查、总体、个体、样本等概念参考资料，少熬夜！2、介绍新知识（1）普查：为了一定的目的而对考察对象进行的全面调查。（2）总体：所考察对象的全体。（如上述问题中的总体为“全班同学每周干家务活的平均时间的全体”，注意这里“考查对象”不是学生而是学生干家务活的时间。）（3）个体：组成总体的每一个考察对象。（如上述问题中的个体为“全班每一个同学每周干家务活的平均时间”）为了准确了解全国人口状况，我国每10年进行一次全国性人口普查，在考察我国人口年龄构成时，总体是什么、个体是什么？总体：就是具有中华人民共和国国籍并在中华人民共和国境内常住人口的年龄。个体：就是符合这一条件的每一个公民的年龄。教师活动：教师引导学生，这里所说的“考察对象”是指表示事物某一特征的数据，如对全国人口普查时，考察对象是我国人口的“年龄”。学生活动：结合课本176页的统计图四人一组进行讨论，知道大概的年龄结构。讲一个笑话对原有的情境进行变式，引起学生对普查局限性的思考，从而引出抽样调查，感受抽样的必要性。“儿子，帮妈妈买盒火柴去”“这次注意点，上次你买的火柴好多划不着。”………儿子高兴的跑回来。“妈妈，这次的火柴全划得着我每根都试过了”笑过以后，谈谈你的看法议一议1、全国所有八年级学生每周干家务活的平均时间是多少？你能用普查的方式得到这个数据吗？你准备如何获得这个数据？与同伴交流。（鼓励学生解决方式的多样性）2、我们班上有多少男生？全校呢？全会宁县呢？全白银市呢？全省呢？全国呢？你准备用什么方式获得这些数据？（鼓励学生解决方式的多样性）3、你能用普查的方式调查某一天你所在地区的人口流量吗？（由于每个人离开某地的方式不同，且受到时间等条件的限制，一般无法对所有的个体进行普查，有说普查的也应该鼓励。举生活中的实例）4、你愿意采用普查的方式了解一批日光灯管的使用寿命吗？（由于检查日光灯的使用寿命时，对日光灯管会造成一定的破坏，一般用抽样的调查方式）普查的困难1、总体中的个体数目较多，工作量较(太)大，无法一一考查；2、受客观条件的限制，无法对个体一一考查3、考查具有破坏性，不允许对个体一一考查解决的办法：抽样调查。抽样与样本参考资料，少熬夜！从总体中抽取部分个体进行调查，这种调查称为抽样调查，其中从总体中抽取部分个体叫做总体的一个样本。例如：1、我国每五年进行一次全国1%人口的抽样调查，其中被抽取的1%人口就是全国人口的一个样本。2、说明在下列问题中，总体、个体、样本各是什么？（1）为了了解一批灯泡的寿命，从中抽取10只进行试验．（这批灯泡寿命的全体是总体，每个灯泡的寿命是个体，抽取的10个灯泡的寿命是总体的一个样本．）（2）为了考察会师园一年中每天进园的人数，在其中的30天里对进会师园的人数进行统计．（这一年中每天进会师园的人数的全体是总体，每天进会师园的人数是个体，所抽取的30天里每天进会师园的人数是总体的一个样本．）（3）为了考察一个学校的学生参加课外体育活动的情况，调查了其中20名学生每天参加课外体育活动的时间。(总体是：参加课外体育活动全体的时间。样本是：20名学生每天参加课外体育活动的时间。个体是：每位学生每天参加课外体育活动的时间。)1.举例说明什么时候用普查的方式获得数据比较好，什时候用抽样调查的方式获得数据比较好。归纳总结本节课所学习的内容1、课本177页，数学理解1题。2、“你怎样对待你的父母”主题调查父母的关心是无微不至的，但是现在大家回过头来想一想，我们是怎样对待自己的父母的呢？班干部组成一个调查小组，以“你怎样对待你的父母”为主题，设计几个问题，如：你知道你父母的生日吗？在父母生日的时候，送过父母小礼物吗？在家主动帮父母做家务吗？当父母批评你的时候，你持什么态度呢？等等．开展调查，写出调查报告，星期五周会上全班同学进行交流。说课稿数学说课稿ppt【第二篇】�𾴵ä¸ï¿½î»ï¿½ï¿½î¯ï¿½ï¿½ê¦ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½òºã£ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ú¿ï¿½ï¿½çµï¿½ï¿½ó¹ï¿½òµï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½æ£¬ï¿½ï¿½ï¿½ä½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ò±ï¿½ï¿½ï¿½ï¿½ï¿½ï参考资料，少熬夜！¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ì¿ï¿½ï¿½é£¬ð¡ñ§ï¿½ï¿½ï¢ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê¼¶ï¿½ï²ï¿½ï¿½ï¿½ä£ï¿½ï¿½1����ò»ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ä´ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½1��ôªï¿½ï¿½ï¿½ï¿½ê¶ï¿½ï¿½ï¿½ô¡ï¿½ï¿½ï¿½2��ê±ï¿½ï¿½ï¿½ï¿½ï¿½ý¡ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ú¿ï¿½ï¿½ú±ï¿½ï¿½ï¿½ôªï¿½ì²ï¿½ï¿½ï¿½ï¿½ýµä±ï¿½ï¿½ï¿½ï¿½ï´ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ê¶ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½è±¸ï¿½ï¿½windows���棬�����������������������ï¤ï¿½ø±õ¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ä»ï¿½ï¿½ï¿½ï¿½ï£ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ê¶ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ö¸ï¿½ë²¢ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½õ·ï¿½ï¿½ï¿½ç°ï¿½ï¿½ï¿½â£ï¿½ï¿½ï¿½ò»ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê¹ï¿½ï¿½ï¿½ï¿½ê£¬îªï¿½ï¿½ï¿½ï¿½ó¦ï¿½öµï¿½ê¹ï¿½ã¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½×¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ú¸ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê¼¶ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ëµï¿½ï¿½ï¿½è¾ï¿½ï¿½ð¶ôµï¿½ï¿½ô³ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ö¾ï¿½ï¿½ï¿½ï¿½â²ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½é¼ï¿½ï¿½ï¿½ï¿½ï¿½è±¸ï¿½ð»µµä¿ö¾ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ò¾ï¿½ï¿½ï¿½í¨ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï·ï¿½ä³å¶¯ï¿½ï¿½í¨ï¿½ï¿½ç°ï¿½ï¿½ô¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê¶ï¿½ï¿½ï¿½ï¿½ï¿½ï¿参考资料，少熬夜！½ï¿½ë½ï¿½ï¿½ë¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½è±¸ï¿½ï¿½windows���棬�������ë¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¤ï¿½ë¹ø±õ¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½è£¬ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½í¨ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½é£¬ï¿½ø±ï¿½ï¿½ï¿½í¨ï¿½ï¿½ï¿½ï¿½ê¶ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ö¸ï¿½ë£¬ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½õ·ï¿½ï¿½ôºó£¬½ï¿½ò»ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê¹ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½è¤ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¶ô½ì²äºï¿½ñ§ï¿½ï¿½êµï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ä·ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½øµã£¬ï¿½ï¿½ï¿½æ¶ï¿½ï¿½ï¿½ï¿½â½ï¿½ñ§ä¿ï¿½ê£ºï¿½ï¿½ï¿½ï¿½1�����������æ¶ï¿½ï¿½ï¿½ö¸ï¿½ò¡¢µï¿½ï¿½ï¿½ï¿½ï¿½ë«ï¿½ï¿½ï¿½ï¿½ï¿½ï¶ï¿½ï¿½ï¿½ï¿½ï¿½2����ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê¾ï¿½û²ï¿½ä¹ï¿½ï¿½ì£ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ë¼ï¿½ï¿½ï¿½ï¿½ì½ñ°ï¿½ï¿½ï¿½ï¿½ì·¨ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½à»¥ï¿½ï¿½ï¿½û£ï¿½ï¿½ã±¨ï¿½ï¿½ï¿½ï¿½ï¿½ä¹ï¿½ï¿½ì£ï¿½ñ§ï¿½ï¿½×¼è·ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½õ³ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½è½ïµä参考资料，少熬夜！¹ï¿½ï¿½ì£ï¿½ñ§ï¿½ï¿½ï¿½ð²¢¸ï¿½ï¿½ï¿½ï¿½ï¿½òªï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½3��ñ§ï¿½ï¿½í¨ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½é¾°ï¿½ï¿½ï¿½ú£ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ç·çµï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½í¨ï¿½ï