Some problems, improvements or changes will only be discovered in the context of use. Instructional developers plan for recursive evaluations by users and by experts. Designers invest the most assessment effort in formative evaluations because these provide feedback for improving the product. Some instructional strategies, such as problem-based learning, collaborative learning and anchored instruction, naturally fit Constructivism. ID takes into consideration the different learning styles of students by providing multiple awareness.
Different content lends itself to different approaches and instruction has different purposes.
Constructivists believe that whether there is an external reality or not, humans cannot objectively come in contact with it. The appropriate approach to practice is reflective and must be understood in context. Instructors should reflect on actions and events, revise decisions based on that reflection, and share and invite sharing with others.