These are useful links that you can use to supplement your classes.
Zebra looks for his mother. 袋鼠姊姊說故事
Moon Festival Stories - Chang Er, Wu Gang, Jade Rabbit
Extra teaching materials (文字好好玩 - 部首)
How are Chinese characters created?
Learn Chinese in 1000 words - 一千字說華語
Learn Chinese in 500 words - 五百字說華語
Chinese Proficiency Test - TOCFL (Test of Chinese as a Foreign Language)
Mactv Taiwan Channel - Chinese and English