In psychology, the concept of 'functional fixedness' refers to a cognitive bias that limits a person to using an object only in the way it is traditionally used. This mental block prevents individuals from imagining alternative uses for familiar objects, thereby hindering problem-solving and creativity. When faced with a novel challenge, people often overlook unconventional solutions because they are 'fixed' on the object's typical function. Overcoming functional fixedness requires a deliberate effort to reframe the problem and consider the object's properties beyond its usual purpose.
🎧 การบรรยาย
Professor: Let me give you an example from a classic experiment. Participants were given a box of thumbtacks, a candle, and a matchbook. Their task was to attach the candle to a wall so that it could burn without dripping wax on the floor. Many participants struggled. They tried nailing the candle to the wall with a tack, or melting the wax to stick it—none worked. But the solution was simple: empty the thumbtacks from the box, use the box as a platform, and tack the box to the wall, then place the candle on top. The problem was that participants saw the box only as a container for tacks, not as a potential shelf. They were fixated on its typical function. Once they overcame that, they solved it easily.
❓ 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。
