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 is centered on observable behaviors and the idea that all behaviors are acquired through conditioning. It emphasizes the role of environmental stimuli in shaping behavior rather than the active involvement of the learner in constructing knowledge. Therefore, it does not align with the concept of learners actively building understanding.

Differentiated instruction refers to tailoring teaching methods and resources to accommodate different learning styles and abilities within a classroom. While it acknowledges individual learner needs, it does not specifically emphasize the active role of learners in constructing their understanding, which is a core principle of constructivism.

The theory of multiple intelligences proposes that individuals possess various types of intelligences that influence how they learn and process information. While it highlights diverse learning preferences, it does not inherently stress the learner's active role in constructing knowledge, making it less applicable to the question's focus.