10的分成组成若素 <h3>谜语导入</h3> <h3>谜底:手</h3> <h3>引出课题</h3> <h3>提出问题</h3> <h3>小朋友动手操作</h3> <h3>得出结论</h3> <h3>熟记凑十歌</h3> <h3>闯关练习</h3> 10凑十歌熟记闯关谜语小朋友导入谜底得出结论引出