निम्नलिखित में से कौन सा स्व-निर्देशित अधिगम (self-directed learning) का सबसे अच्छा वर्णन करता है?

Brainstorming is primarily used as an instructional technique to promote:

Which of the following factors influencing teaching is directly related to teacher-student classroom interaction rather than instructional facilities or physical environment?