基于问题学习在中学生物教学中的应用——以“血液循环途径”为例
Application of Problem-Based Learning in Biology Teaching in Secondary Schools—Taking the “Blood Circulation Pathway” as an Example

以“血液循环途径”为例，采用基于问题的学习方法，基于学习内容，围绕教学目标提出环环相扣的问题，采用合作学习、小组讨论等学习方法，促使学生探索并解决问题，最终掌握体循环和肺循环的途径、血液成分的变化以及血液循环的意义。在这个过程中教师是引导者，学生是课堂的主人。学生在一步步探索并解决问题的过程中，不仅能学习到课内知识，还能提高学生的表达交流以及思维能力，提高生物学学习兴趣。符合新课程标准对学生培养的要求，有利于学生生物学核心素养的培养。
Taking “blood circulation pathway” as an example, we adopt the problem-based learning method, which is based on the learning content, puts forward the interlocking problems around the teaching objectives, and adopts the learning methods such as cooperative learning and group discussion to encourage students to explore and solve the problems. In this process, the teacher is the guide and the students are the masters of the classroom. In the process of exploring and solving problems step by step, students can not only learn the knowledge in the classroom, but also improve their expression and communication as well as thinking ability, and increase their interest in learning biology. It is in line with the requirements of the new curriculum standard for students’ training, and is conducive to the cultivation of students’ core literacy in biology.