Using Classzone for Instruction

I'm not sure what everyone uses in their district but I have found this resource very useful for students learning Spanish I:

Classzone - This website allows students to engage in leveled independent practice for units and lessons in Spanish vocabulary, grammar, video and audio response, reading, and games.

http://www.classzone.com/cz/books/avancemos_1/book_home.htm?state=MD

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