高中生物学案是高中生物教学的载体,学案质量的好与坏直接影响生物教学的效果,设计符合学生学习需要的学案是高效课堂的必要条件,依据高中生物学科特点编制适合学生学习的学案应遵循启发性原则、导向性原则、层次性原则、拓展性原则、灵活性原则。 High school biology case is the carrier of high school biology teaching. The quality of study case has a direct impact on the effectiveness of biology teaching. It is necessary to design a case that meets the needs of students’ learning. Based on the characteristics of high school biology, Case study should follow the heuristic principle, the guiding principle, the principle of hierarchy, the principle of expansion, the principle of flexibility.