人教版八年级下册生物第七单元第一章第四鸟的生殖和发育－－－观察鸡卵的结构实验创新说课课件（34ppt）

* 实验不足 及改进 说课内容 原实验 分析 创新反思 第七单元 第一章 生物的生殖和发育 第一节 植物的生殖 第二节 昆虫的生殖和发育 第三节 两栖动物的生殖和发育 第四节 鸟的生殖和发育 一、原实验分析 教材地位 一、原实验分析 实验设计 一、原实验分析 实验 目的 1.通过实验 操作与观察 分析，使学 生掌握鸡卵 的结构特征 与功能。 2.培养观察 能力，并学会用观察的方法进行生物学研究。 二、实验中的不足及改进 √ 改进 增设熟鸡卵的观察体验 补充对鸟卵功能的探究实 验设计 不足 1. 实验材料为新鲜鸡 卵，实验不便 2.实验设计缺乏对鸟 卵功能的直观感知 实验中的不足及改进 不足1.实验材料为新鲜鸡卵，实验不便 √ 改进措施：改生鸡卵为熟鸡卵 √ 所需器材： 卵壳 内容 观察 体验 * © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION. * 内容 卵壳膜 观察 体验 * © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION. * 内容 气室 观察 体验 * © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in