When Naïve Pedagogy Breaks Down: Adults Rationally Decide How to Teach, but Misrepresent Learners' Beliefs

Area of Science:

• Cognitive Science
• Developmental Psychology
• Education

Background:

• Humans possess intuitive knowledge-sharing skills from childhood.
• Adults often fail in informal teaching despite high confidence.
• Previous research indicates a gap between teaching intentions and effectiveness.

Purpose of the Study:

• Investigate the reasons behind adults' ineffective informal teaching.
• Identify the cognitive mechanisms underlying pedagogical failures.
• Explore the role of learner belief representation in teaching.

Main Methods:

• Experiment 1: Assessed teaching effectiveness and confidence in a simple task.
• Computational modeling: Analyzed example informativeness based on learner hypotheses.
• Experiment 2: Tested knowledgeable participants' assumptions about naïve learners' beliefs.
• Experiment 3: Manipulated learner beliefs to match teacher expectations.

Main Results:

• Adults provided informative examples but failed to teach effectively.
• Teachers inaccurately estimated learners' hypothesis spaces, assuming learners considered fewer possibilities.
• Aligning learner beliefs with teacher expectations improved example informativeness.

Conclusions:

• Adult pedagogical failures stem from misrepresenting learners' beliefs, not from a lack of rational example selection.
• Effective informal teaching requires accurate understanding of the learner's cognitive state.
• Future interventions should focus on improving teachers' metacognitive awareness of learner understanding.