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, thereby hindering creative problem-solving. This mental block prevents individuals from imagining alternative functions for familiar items. Psychologists argue that overcoming functional fixedness requires a deliberate shift in perspective, often leading to innovative solutions. The phenomenon is commonly studied in the context of problem-solving tasks, where participants fail to see novel uses for everyday objects.
🎧 การบรรยาย
Professor: So, let me give you a classic example. In a psychology experiment, participants were given a box of thumbtacks, a candle, and a match, and were asked to attach the candle to the wall so that it could burn without dripping wax on the floor. Many struggled. They tried to tack the candle directly to the wall, but it broke. Some tried to melt the wax to stick it, but that didn't hold. Then, the solution was to empty the thumbtack box, tack it to the wall as a platform, and place the candle inside. The problem was that participants saw the box only as a container, not as a potential shelf. Once they overcame that mental block, they solved it easily. This shows how functional fixedness limits our ability to see beyond an object's typical use.
❓ คำถาม Question: 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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