Rigor and Relevance is the Characteristic of Effective Instruction that comes to mind as I read this. Good instruction is good instruction, regardless of the teaching modality. In a student-centered environment, as this suggests, students are encouraged to collaborate with others as they take their new knowledge and apply it.

In the research I've read about age and ability level, I was surprised to learn that an instructor cannot assume that the young are tech savvy and older participants will struggle with technology. There is no research to support this, as sometimes just the opposite is the case.