A learning model that stresses the active role of the learner in building understanding and making sense of information is best identified as which of the following theories?

Behaviorism focuses primarily on observable behaviors and the responses to environmental stimuli. It emphasizes reinforcement and conditioning rather than the learner's active role in knowledge construction. This approach views learners as passive recipients of information, which contrasts sharply with the principles of constructivism.

Differentiated instruction is a teaching approach aimed at tailoring education to meet the diverse needs of students. While it acknowledges the varying levels of learner engagement, it does not inherently stress the active role of learners in building their understanding, instead focusing on adapting instruction to different learning styles and abilities.

The theory of multiple intelligences proposes that individuals have different kinds of intelligences that affect their learning. While it recognizes diversity in learning preferences, it does not specifically emphasize the active construction of knowledge by learners, which is the hallmark of constructivism.