This lesson emphasizes the importance of proper ground technique in high jumping, including the significance of foot placement during the approach and takeoff. The coach highlights how slight adjustments, like angling the foot towards the center of the pit, can greatly impact lift and form. Troubleshooting tips focus on maintaining speed, correct landing position, and ensuring a clean approach to enhance overall performance. The lesson concludes with a beginner's success story from a first-time high jumper.