*Edit: I checked some of the stuff more out in detail. While some concepts on this are valid and backed up by sience, others like RSD are not. Use this as a springboard for learning, not as a valid source in itself. Yes it says so in the corner already. But spelling it out might help.
People are more complicated then a diagram from the internet. Never forget that.
Not talking about social skills, and when I went to school, gifted classes were full time, from grades 4-8.
That seems like a really bad idea unless you had a very large school or that was just what they called honors classes. My class was pretty average at 200 students and there were only 5 kids in the gifted program.