Answer:
The knowledge of how to drive the tractor is an implicit/nondeclaritive memory, which makes it difficult to explain without demonstrating the action
Step-by-step explanation:
Rose cannot explain it in words because the knowledge of how to drive the tractor is an implicit/nondeclaritive memory, which makes it difficult for her to explain in word without demonstrating the action meaning she can't accurately explain how to drive the tractor in words due to the fact that she can only demonstrate it for him by driving the tractor and this can happen when she use her past experiences to remember and demonstrate the action without thinking about it or saying it in words.
Therefore Rose can only show her brother how to drive the tractor practically by driving it her self then showing him how to do it rather than explaining it to him in words because she has had previous experiences on how to drive a tractor.