Observing high school kids that take part in project based learning (outside of the classroom) and noting how fast they develop deeper skills, critical thinking

Observing high school kids that take part in project based learning (outside of the classroom) and noting how fast they develop deeper skills, critical thinking and problem solving. Small sample size but before and after observations are mostly very positive. (FIRST robotics) So maybe not killing kids brains but maybe not developing them to the peak potential. You might like to look at Olin College. They are trying to reinvent Engineering education. Yes they are only selecting the very best for their project based learning program. But they are working with other schools to see if their methods translate into benefits for non-Engr STEM and college students of average abilities.