2018三年级语文下册第19课橡皮头铅笔课件西师大版2019021449.ppt

上传人:rimleave225 文档编号:954429 上传时间:2019-03-09 格式:PPT 页数:14 大小:353KB
下载 相关 举报
2018三年级语文下册第19课橡皮头铅笔课件西师大版2019021449.ppt_第1页
第1页 / 共14页
2018三年级语文下册第19课橡皮头铅笔课件西师大版2019021449.ppt_第2页
第2页 / 共14页
2018三年级语文下册第19课橡皮头铅笔课件西师大版2019021449.ppt_第3页
第3页 / 共14页
2018三年级语文下册第19课橡皮头铅笔课件西师大版2019021449.ppt_第4页
第4页 / 共14页
2018三年级语文下册第19课橡皮头铅笔课件西师大版2019021449.ppt_第5页
第5页 / 共14页
点击查看更多>>
资源描述

橡皮头铅笔,1.正确、流利、有感情地朗读课文。 2.了解橡皮头铅笔的来由,以及他的创造者,增强同学们爱发明,学发明的意识情感。,学习目标,橡皮头铅笔,普通铅笔,1.课文讲了一件什么事?2.全班交流:说说自己从课文中读懂了什么?,初读课文思考:,课文主要是写美国的画家李浦曼为了节约时间,节省开支,发明了橡皮头铅笔的事。,课文中哪些地方可以看出李浦曼的生活相当困难?从哪里看出他是一个热爱画画的人?,虽然李浦曼很穷,生活十分困难,但他并没有放弃对艺术的追求。他每天坚持画画,常常画到天亮,课文学习:,李浦曼发明橡皮头铅笔的经过是怎样的?你知道他为什么要这样做吗?,在课文中找出一个词形容他画画很认真,并解释这个词。(专心致志:一心一意集中精神)他发明铅笔为什么耽误了不少时间?他想了哪些方法,最后结果怎么样?,“专利”是什么意思?,专利是指法律保障创造发明者在一定时期内由于创造发明而独自享有的利益。本课指李浦曼发明了橡皮头铅笔后独自享有的利益。,总结,同学们,其实伟大的发明就在我们身边,只要大家认真观察,勤动脑,你们也会获得发明的专利的。,思维拓展,李浦曼取得了橡皮头铅笔的专利,这个专利可是值五十五万美金的巨款,你想对他说什么呢?同学们平常你们有什么发明创造吗?说一说吧。,再见,

展开阅读全文
相关资源
猜你喜欢
  • DIN EN 12702-2000 Adhesives for paper and board packaging and disposable sanitary products - Determination of blocking behaviour of potentially adhesive layers German version EN 12.pdf DIN EN 12702-2000 Adhesives for paper and board packaging and disposable sanitary products - Determination of blocking behaviour of potentially adhesive layers German version EN 12.pdf
  • DIN EN 12703-2016 Adhesives for paper and board packaging and disposable sanitary products - Determination of low temperature flexibility or cold crack temperature German version E.pdf DIN EN 12703-2016 Adhesives for paper and board packaging and disposable sanitary products - Determination of low temperature flexibility or cold crack temperature German version E.pdf
  • DIN EN 12704-2016 Adhesives for paper and board packaging and disposable sanitary products - Determination of foam formation for aqueous adhesives German version EN 12704 2016《纸、纸板.pdf DIN EN 12704-2016 Adhesives for paper and board packaging and disposable sanitary products - Determination of foam formation for aqueous adhesives German version EN 12704 2016《纸、纸板.pdf
  • DIN EN 12705-2011 Adhesives for leather and footwear materials - Determination of colour change of white or bright coloured leather surfaces by migration German version EN 12705 20.pdf DIN EN 12705-2011 Adhesives for leather and footwear materials - Determination of colour change of white or bright coloured leather surfaces by migration German version EN 12705 20.pdf
  • DIN EN 12706-1999 Adhesives - Test methods for hydraulic setting floor smoothing and or levelling compounds - Determination of flow characteristics German version EN 12706 1999《胶粘剂.pdf DIN EN 12706-1999 Adhesives - Test methods for hydraulic setting floor smoothing and or levelling compounds - Determination of flow characteristics German version EN 12706 1999《胶粘剂.pdf
  • DIN EN 12707-2009 Plastics drums - Non-removable head (tight head) drums with a nominal capacity of 210 l and 225 l German version EN 12707 2009《公称容量为210升和225升的非移动头式(敞口)桶 德文版本 EN 1.pdf DIN EN 12707-2009 Plastics drums - Non-removable head (tight head) drums with a nominal capacity of 210 l and 225 l German version EN 12707 2009《公称容量为210升和225升的非移动头式(敞口)桶 德文版本 EN 1.pdf
  • DIN EN 12709-2000 Plastic drums - Non-removable head (tight head) circular cross section drums with a nominal capacity of 20 l to 120 l German version EN 12709 2000《塑料桶 标称容积为20升至12.pdf DIN EN 12709-2000 Plastic drums - Non-removable head (tight head) circular cross section drums with a nominal capacity of 20 l to 120 l German version EN 12709 2000《塑料桶 标称容积为20升至12.pdf
  • DIN EN 1271-2015 Playing field equipment - Volleyball equipment - Functional and safety requirements test methods German version EN 1271 2014《运动场地器材 排球器材 功能和安全要求以及试验方法 德文版本EN 1271-.pdf DIN EN 1271-2015 Playing field equipment - Volleyball equipment - Functional and safety requirements test methods German version EN 1271 2014《运动场地器材 排球器材 功能和安全要求以及试验方法 德文版本EN 1271-.pdf
  • DIN EN 12710-2006 Fibreboard drums - Removable head (open head) drums with closing rings with a nominal capacity of 15 l to 250 l English version of DIN EN 12710 2006-08《纤维纸板筒 标称容量.pdf DIN EN 12710-2006 Fibreboard drums - Removable head (open head) drums with closing rings with a nominal capacity of 15 l to 250 l English version of DIN EN 12710 2006-08《纤维纸板筒 标称容量.pdf
  • 相关搜索

    当前位置:首页 > 考试资料 > 中学考试

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1