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 seeing novel uses for familiar items, thereby hindering problem-solving and creative thinking. Functional fixedness often arises when people become overly familiar with an object's standard function, making it difficult to imagine alternative applications. Overcoming this bias requires deliberate effort to reframe the object's purpose and consider its physical properties rather than its conventional role.
🎧 Listening Lecture
Professor: Let me give you an example from a classic psychology experiment. Participants were given a box of thumbtacks, a candle, and a book of matches. Their task was to attach the candle to the wall so it could burn properly without dripping wax on the floor. Many participants tried to tack the candle directly to the wall or melt wax onto the box to stick it—both failed. The solution was to empty the box, tack it to the wall, and use it as a platform for the candle. But most people couldn’t see the box as anything other than a container for thumbtacks. That’s functional fixedness—they were stuck on the box’s usual role. Once someone pointed out the box could be used as a shelf, they immediately saw the solution. So the key is to break that mental set.
❓ Question Question: Using the example from the lecture, explain the concept of functional fixedness.
📊 TOEFL Speaking Task 3 Rubric
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.
💡 Answering Tips
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
🎤 免费 AI 口语评分
基于 2800+ 托福真题评分库 · 无限次免费使用
⚠️ 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。