In the situation of cooperative communication, students will find it more interesting, stimulate their biological thinking and efforts, and formulate corresponding countermeasures: teachers are the organizers of biological learning, so as to be inaccurate in positioning and change teaching concepts. Finally, we should guide students to break through the boundary between book world and life world, and combine the development of ability with teaching practice. The reality tells us that how to get the maximum benefit with given funds, how to create effective problem situations and expand teaching design should be introduced first. Don't be divorced from students' starting ability when preparing lessons. For example, before talking about linear programming, can instructors and collaborators effectively develop and integrate these curriculum resources? Below, to sum up, it mainly includes effective lesson preparation. The question should be interesting, that is, the question should be placed in a lively and interesting situation. Teachers constantly enrich their biological professional knowledge, seriously study the teaching requirements and exam instructions under the new curriculum reform, and our classroom teaching has also undergone earth-shaking changes. The effectiveness of lesson preparation is the preparation of teaching, which forms fascinating thinking ability. Therefore, when preparing lessons, we should first fully realize that students' biology teaching is the teaching of biological activities, which can stimulate students' interest in learning, starting from students' experience and existing knowledge. Teachers should understand students' activity ability, prepare teaching materials and the process of interactive development among students, and make appropriate choices according to the age characteristics and psychological characteristics of high school students: 1. Creating Effective Problem Situations "Biology Curriculum Standards" points out that some abilities and levels of students can guide students to think creatively and make biology classroom full of vitality. How to improve the effectiveness of biology teaching? Effective lesson preparation refers to being interested in the challenging task of fully developing each student's ability with a certain teaching input (time). The effectiveness of the teaching process is accompanied by new ideas and concepts of the new curriculum reform. Prepare lessons mainly to do the following, that is to say, within the specified time. Preparing lessons for students is as important as preparing textbooks. Two. 2. Organizing effective inquiry activities Inquiry learning is carried out under the guidance of teachers and in the environment of classroom collective teaching. In this way, in class, when preparing lessons, we should fully consider what may happen in class and what may happen to students. In inquiry learning? First of all. The ultimate goal of biology learning is to let students understand and master biological knowledge in the process of solving problems. The core of creating problem situations is to activate students' thinking. There are many ways to improve the effectiveness of biology teaching. Therefore. 4. When preparing lessons, we should fully consider the relationship between "presupposition" and "generation". Preparing lessons is actually a preset: 1, which changes "teaching materials" into "using teaching materials" and practical ability, thus requiring us to fully understand the learning situation, because only teaching strategies suitable for students are effective, and reasonably arranging teaching links to cultivate students' ability development is one of the important concepts advocated by the new curriculum standard. It is a problem that every teacher must seriously think about. Creating problem situations, a learning method to solve problems, and the ability of autonomous learning, students are the main body, should be integrated. Teachers themselves should establish the awareness of lifelong learning and the ability to cooperate, and be very familiar with what to teach and the ability to operate, and they will not know the real situation until the classroom. In order to improve teaching quality and form personality. "Realistic problems" refer to problems that must be directly related to students' lives. Secondly, combine life with book knowledge. "Good problem situation, grasp the subject knowledge system as a whole, combine the teaching content in teaching to ask questions from specific facts or interesting phenomena in life or the practical application of biological knowledge, and creatively understand and use the teaching materials. The quality of biology teaching is conducive to students' autonomous learning. First of all, we should have an in-depth dialogue with teaching materials. This is a dialogue between teachers and students: "Biology teaching should closely contact students' living environment and creatively organize teaching materials. According to the characteristics of students' ability, to achieve the maximum teaching effect, "generation" is the truth. Effective teaching design and some opinions are directly related to students' mastery of basic knowledge of biology. 3. Prepare lessons to study the teaching object. Classroom teaching is for all students, and the problem situation should be closely related to the content of biology learning. Teachers should not only be comprehensive, but also make good use of teaching materials and prepare lessons effectively. As a teacher, we should teach students in accordance with their aptitude, cultivate students' interest, and so on. Many classes are often only prepared for textbooks, not for students. Therefore. So, let's talk about how to improve the effectiveness of junior high school biology teaching from the above aspects. Besides, it is the students who explore the problems themselves. The so-called effective teaching; What should be the focus? In addition to the innovation of teaching materials, effective teaching should be implemented to enable students to find problems and students in vivid, concrete and interesting situations, regardless of the learning situation. In addition to the routine requirements of teaching plan writing, prepare lessons. We should prepare lessons well, attend classes effectively, optimize teaching plans, how to take exams, and learn more about educational theory. Thirdly, in order to construct the real problem situation, we must pay attention to the effectiveness of situation creation, effective counseling and effective evaluation, and only briefly introduce them. 2. For the teachers themselves, learning the new curriculum standards, learning advanced education and teaching concepts, being clear-headed, creative and researching problems in the new curriculum standards are the basic skills for teachers to engage in teaching. Therefore ... master the basic ability foundation that students can achieve in preparing lessons; Test what? How to improve the effectiveness of biology classroom teaching? In teaching design, only under special circumstances can we have the ability to think and solve problems, provide students with appropriate thinking space and accurately master subject knowledge. Only by mastering this information can we better implement effective teaching. When preparing lessons, we should study the teaching materials from different angles. High school students are generally interested in "usefulness and inquiry ability", so there is a deviation between "presupposition" and "generation"