I'm echoing all your philosophies;
Ever since exposing GLaDOS's true function, Claire was starting to remember people she'd forgotten. It was kind of weird, some things had clicked back into place immediately, but others had taken time to recall. And since she became aware of it, there was a constant feeling on the edge of her mind that she was still missing something and it was important, but she just couldn't get a grasp on it.
That, of course didn't stop her from trying. She was determined to remember what it was, even if it didn't seem like Stacy quite wanted her to. All this excess thinking left her wandering around with a slightly spaced out look, however, and she'd been more than a little distracted. So when she was interacting with the kids in her class she had to push it back, which made it harder for her to try to get a hold on it, again.
So, anyone happening to wander through hydroponics may come across Claire sitting in one of her favorite spots, back up against a tree. She's half watching Boon run around and throwing a ball for him, but for the most part she's off in her own world.
That, of course didn't stop her from trying. She was determined to remember what it was, even if it didn't seem like Stacy quite wanted her to. All this excess thinking left her wandering around with a slightly spaced out look, however, and she'd been more than a little distracted. So when she was interacting with the kids in her class she had to push it back, which made it harder for her to try to get a hold on it, again.
So, anyone happening to wander through hydroponics may come across Claire sitting in one of her favorite spots, back up against a tree. She's half watching Boon run around and throwing a ball for him, but for the most part she's off in her own world.

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And Claire was much nicer about it than Leon. "Oh, and speaking of Dad, he's been working for eighteen hours so far. Because he's crazy."