Our DD8 is a lot like this also. It is almost like she has lost part of her "spark" and curiousity. We hear a lot more "I don't know" lately, where before she would at least give some sort of answer and whether right or wrong she was at least thinking about it.

We recently starting doing some brainteasers, anagrams, and perplexers at home (just for fun) with DD8 & DD7 in an attempt to get them thinking. This is family-time stuff and they have really found it to be fun and ask for it every night.

I'd be interested to know if others have this same "lazy" issue and what they have done to jump start their kiddo.