What technique is most important for beginning piano students to practice during their first lesson?

Maintaining curved fingers is an essential technique for beginning piano students, as it promotes proper hand positioning and reduces the likelihood of developing bad habits. When fingers are curved, each finger can independently strike the keys more effectively, allowing for better control and more expressive playing. This position also helps in utilizing the weight of the arm, enhancing sound production, and aiding in finger agility.

In contrast, playing with flat fingers may hinder students' ability to play accurately and comfortably, leading to tension and potential injury over time. While keeping a steady tempo, using hands separately, and other technical aspects are important for developing overall musicianship, focusing on finger curvature lays the groundwork for proper technique and skill development right from the start.