The key questions to ask about blended learning are:
To what extent does the blended learning environment offer transformed instructional design models that provide for optimizing personalized learning in a classroom or in a school?
Does each student have an individual student profile of their history and performance over time?
How well do blended instructional models include immediate supports and services to students having difficulty demonstrating proficiency or with gaps in knowledge and skills?
To what extent do the blended learning instructional models provide for multiple pathways to success?