In a telephone survey of more than 2,000 adults, 21% said they believed the sun revolved(旋转)around the earth. An 1 7% did not know which revolved around 2 . I have no doubt that 3 all of these people were 4 in school that the earth revolves around the sun; 5 may even have written it 6 at test. But they never 7 their incorrect mental models of planetary (行星的) 8 because their everyday observations didn"t support 9 their teachers told them: People see the sun moving 10 the sky as morning turns to night, and the earth seems stationary (静止的) 11 that is happening.
Students can learn the right answers 12 heart in class, and yet never combined them 13 their working models of the world. The objectively correct answer the professor accepts and the 14 personal understanding of the world can 15 side by side, each unaffected by the other.
Outside of class, the student continues to use the 16 model because it has always worked well 17 that circumstance. Unless professors address 18 errors in students" personal models of the world, students are not 19 to replace them with the 20 one.