In psychology, the concept of 'functional fixedness' refers to a cognitive bias that limits a person to using an object only in its traditional manner. This mental block prevents individuals from seeing alternative uses for familiar items, thereby hindering problem-solving and creative thinking. Overcoming functional fixedness often requires a shift in perspective, allowing one to perceive objects in novel ways to solve unique challenges.
🎧 การบรรยาย
Professor: Let me illustrate this with a classic experiment. Participants were given a box of tacks, a candle, and a book of matches, and were asked to attach the candle to a wall so it could burn properly. Many struggled because they only saw the tack box as a container for tacks. They tried tacking the candle directly to the wall or melting wax, but failed. The solution was to empty the box, tack it to the wall as a shelf, and place the candle on it. Those who succeeded had to overcome functional fixedness—they recognized the box could serve as a platform, not just a holder. This shows how breaking mental assumptions leads to effective problem-solving.
❓ คำถาม Using the example from the lecture, explain the concept of functional fixedness.
📊 เกณฑ์การให้คะแนน TOEFL Speaking Task 3
Delivery: Fluency, pronunciation, intonation
Language Use: Grammar, vocabulary, sentence variety
Topic Development: Accurately explain the reading concept and restate the lecture examples
Scored 0-30 based on holistic scoring (original 0-4, scaled to 30). 30s preparation, 60s response.
💡 เคล็ดลับ
Note the core concept definition from the reading (usually 1-2 sentences)
Record 1-2 specific examples the professor uses in the lecture
Start with the concept definition, then explain with lecture examples
Use template phrases: "The reading defines... The professor illustrates this by..."
Keep within 60s; ensure clarity and fluency
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⚠️ AI 自动评分基于托福官方口语三大维度（Delivery / Language Use / Topic Development）标准开发，结果仅供练习参考。
