How do you measure the distance Karel has traveled?

To measure the distance Karel has traveled, maintaining a counter that increments with each move command is the most effective and straightforward method. Every time Karel successfully executes a move command, it covers a specific distance—typically one unit in Karel's world. By keeping a tally of how many times Karel has moved, you can easily determine the total distance traveled.

This approach is directly tied to Karel's programming instructions, making it simple to implement and understand. As Karel executes actions, the counter reflects the total distance corresponding to the number of moves completed. This method is consistent and clear, allowing for accurate tracking of distance.

Other methods, such as using a distance tracking chip, counting turns, or timing travel duration, introduce unnecessary complexities or do not directly correlate with the actual distance traversed. These alternatives may lead to confusion or inaccuracies in measuring movement, thus reinforcing the appropriateness of utilizing a move command counter for this purpose.