The concept of 'functional fixedness' refers to a cognitive bias that limits a person to using an object only in its traditional manner, preventing them from seeing its alternative uses. This mental block often hinders creative problem-solving because individuals fail to recognize novel applications for familiar items. Psychologists argue that overcoming functional fixedness requires deliberate mental flexibility, such as redefining the object's purpose or breaking it into component parts.
🎧 การบรรยาย
Professor: To illustrate functional fixedness, let me tell you about 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. Many struggled because they saw the box only as a container for tacks—not as a potential shelf. However, those who succeeded emptied the box, tacked it to the wall, and placed the candle inside. The key was to break the mental association of the box with its usual role. Another group, given the tacks already separate from the box, solved it more easily. This shows how our preconceived notions block creative solutions.
❓ 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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