In the early days after the founding of People's Republic of China when we were learning from the Soviet educational practices, the five-point scale scoring method was one widely used in China's high schools to evaluate students' academic and virtue performance. Lvshun High School was the first secondary school to implement that method, which not only made positive trials in students′ academic and conduct assessment, but also drew lessons from its practical experiments. The scientific spirit and experimental attitude were the basic principles that must be followed in a new method experiment.