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 recognizing alternative uses for familiar items, thereby hindering creative problem-solving. When faced with a challenge, people often overlook novel solutions because their perception of an object's function is rigidly fixed by prior experiences and conventional uses.
🎧 การบรรยาย
Professor: Let me illustrate this with a classic experiment. Participants were given a box of thumbtacks, a candle, and a book of matches. Their task was to attach the candle to a wall so it could burn without dripping wax on the floor. Most people tried to tack the candle directly to the wall or melt wax to stick it, but both failed. The solution? Empty the thumbtacks box, tack it to the wall as a shelf, and place the candle inside. Why did so many fail? Because they saw the box only as a container for thumbtacks—not as a potential platform. Their functional fixedness blinded them to the box's alternative use. Once they broke this mental set, the problem became easy.
❓ 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。
