物理教师面临着最重要的问题之一是能量问题。对教师来说,这里有二个方面:首先是全球性的,关系到供与需,资源和储备,有和无的一面;其次是物理教育范围内的,关系到教和学的另一面。物理教师不再希望把注意力限制在纯粹的教学问题上,用传统的逻辑方法加以探讨。这种方法要求他们从力出发,去定 One of the most important issues faced by physics teachers is the issue of energy. For teachers, there are two aspects: First, it is global, it relates to supply and demand, resources and reserves, and there is a side to the other. Second, it is within the scope of physics education and it relates to the other side of teaching and learning. Physics teachers no longer wish to limit their attention to pure teaching problems and use traditional logical methods to explore them. This method requires them to start from strength and decide