在未名上看到的这个帖子，收集了很多有用的网站，英文、数学和中文的都有。尤其是中文网站中有一个可以下载全套《四五快读》，下载的电子书很清楚。
发信人: KtownGirl (Smarty), 信区: Parenting
标 题: 有用网站合集 (转载)
发信站: BBS 未名空间站 (Thu Mar 24 16:18:19 2011, 美东)
【 以下文字转载自 K12 俱乐部 】
发信人: floatmeeting (羊羊羊), 信区: K12
标 题: 有用网站合集
发信站: BBS 未名空间站 (Sun Jun 13 19:10:50 2010, 美东)
英文：
www.starfall.com 字母和Phonics
www.bookadventure.org 阅读理解
www.tumblebooks.com/ E-books (edited by Enjoymylife)http://www.wordlywise3000.com/ （provided by REWY)
http://www.storylineonline.net/ (provided by iaya)
www.mightybook.com（大量英文动漫故事）
www.mightybookcn.com (中英文动漫故事）
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数学：
www.beestar.org 趣味数学题(free), GT MATH, English，science(收费）
http://www.mathsisfun.com/worksheets/kindergarten.php
SUNSHINE MATH
http://www.stmarknet.com/sunshine_math.htm
www.dreambox.com (provided by swinger)
www.ixl.com (provided by Swinger)
中文：
http://www.hwjyw.com/textbook.shtml 《中文》教材下载，多媒体教学
http://www.hanlexon.org/index.htm 写字
www.yes-chinese.com 朗朗中文
http://ishare.iask.sina.com.cn/f/8003418.html?from=like 识字课本下载
http://www.nanhaibooks.com/chinese-language.html 网上购买中文教材
online free workbook sheet (edited by Enjoymylife)
www.edHelper.com
http://themathworksheetsite.com/
http://cybersleuth-kids.com//mathflash/mathflash.html