11 彩虹 教学

https://v.qq.com/txp/iframe/player.html?vid=d0390qrcfk6&width=500&height=375&auto=0

https://v.qq.com/txp/iframe/player.html?vid=h0529ummrcm&width=500&height=375&auto=0

复制打开网址 www.1ydt.com 下载全册PPT课件及word教案试卷点击阅读原文看全部教学内容

https://v.qq.com/txp/iframe/player.html?vid=s0529zqxwo6&width=500&height=375&auto=0