My gut tells me what is really behind all this is that whenever he decides a subject is boring, he just tunes out.
DD has finally clued into the fact that meticulous notetaking is a way to stay reasonably ALERT during such things, however... LOL. Some of that may just be a maturity thing, though. She's 14, and wouldn't have done things that way a year ago.
The book that we used to scaffold some study habits and note-taking skills was
School Power: Study Skill Strategies for Succeeding in School.
It was very engagingly written, reasonably concise, and had a variety of explicit instructions in study skills that HG+/accelerated students may not have had any NEED to learn when they were officially taught to classmates (often in grades 5-8).
ETA: It covers Cornell and a couple of other systems-- Cornell doesn't always work well for V/S types. DD eventually settled on a modified Cornell as the most universally flexible approach, and one that forces HER to organize in a way that she particularly needs help with. But it allowed her the autonomy to do it her way-- which is key for her. Autonomy, autonomy, autonomy.
