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 creative problem-solving. In psychology, overcoming functional fixedness often requires a conscious effort to think beyond conventional functions and consider an object's properties independently of its typical purpose.
🎧 การบรรยาย
Professor: Let me illustrate this with a classic experiment. Participants were given a box of thumbtacks, a candle, and a book of matches, and were asked to attach the candle to a wall so that it could burn without dripping wax on the floor. Many struggled because they saw the box only as a container for the tacks. They tried to tack the candle directly to the wall or melt wax to stick it, but nothing worked. The solution was to empty the box, tack it to the wall, and place the candle inside. But to see this, they had to overcome functional fixedness—they had to realize the box could serve as a platform, not just a container. Once they broke that mental set, the answer was simple.
❓ คำถาม Using the example from the lecture, explain the concept of functional fixedness and how it was overcome.
📊 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。
