In this lesson, the coach emphasizes the critical role of coaching marks in track and field, particularly in events like the long jump and triple jump. Coaching marks serve as guidelines for athletes to ensure they hit the optimal position on the runway before takeoff. The coach explains how coaching marks are strategically placed and adjusted based on individual athletes' abilities and performance levels. They underscore the importance of not solely relying on coaching marks but also focusing on other aspects of technique and performance. Through examples and analysis of athletes' performances, the lesson highlights how coaching marks contribute to refining approach mechanics and maximizing jump distances, offering coaches insights into making the right adjustments during training and competitions.