First, learn the related concepts realized in the New Curriculum Standard and new textbooks.
According to Vygotsky's theory of the zone of proximal development, a famous psychologist in the former Soviet Union, teachers' teaching activities should not stay at the current development level of students (the so-called first development zone), but should arouse, stimulate and start a series of internal development processes of students, so that students can complete higher-level knowledge relative to the current knowledge level through their own efforts. This level of knowledge can be achieved through the efforts of students. In a popular saying, it is "jump up and pick peaches". To learn this kind of knowledge, students must work hard to "jump" in order to pick "peaches" (that is, to complete the teaching task).
The problem is the beginning of teaching activities. The primary task of teaching is not to directly impart ready-made knowledge to students, but to guide students to discover various problems. The problem runs through the whole teaching process and the main line, and all teaching activities should be carried out around the problem from beginning to end. The final result of teaching should not be to completely eliminate problems with the knowledge taught, but to trigger more and wider new problems on the basis of initially solving existing problems. The significance of these new problems is not only to make teaching activities go on endlessly, but more importantly, it is not to finally lead students to the road of creation and then become creators.
Classroom teaching under the environment of quality education needs complete education. Its real contribution is not only to let students gain a kind of knowledge, but also to let students have a spirit, a position, an attitude and an unremitting pursuit. Biological science is closely related to people's daily life, medical care, environmental protection and economic activities. Attention should be paid to guiding students to learn biology in the background of real life, to deeply understand the core concepts of biology in the process of solving practical problems, and to be able to use the principles and methods of biology to participate in the discussion of public affairs or make relevant personal decisions. Connecting with real life is conducive to cultivating students' interest and enhancing their sense of social responsibility. Paying attention to connecting with real life is the need of students' development, and closely connecting with real life is the characteristic of biology course.
The new curriculum reform requires us to study for life, be learning teachers, constantly update our educational ideas, constantly enrich ourselves, constantly surpass ourselves, and change and improve our educational and teaching behavior.
The Standard points out that in senior high school, special emphasis is placed on having the desire and ability of lifelong learning, mastering the basic knowledge and skills to meet the needs of the development of the times, forming the ability to collect, judge and process information, having basic scientific and humanistic literacy, environmental awareness, and initial innovative spirit and practical ability.
Second, the introduction of cover catalogue and the preliminary establishment of system theory have paved the way for the follow-up research.
The cover of the required 1 molecule and cell (PEP) is the schematic diagram of the structure model of biofilm and the words "molecule and cell". Before students open their textbooks, let them guess what this picture is, guide them to find the answer in the textbooks, and briefly introduce the chemical composition of biofilm. For example, there are protein molecules and phospholipid molecules, namely Interview with Scientists and Cell Membrane-the Boundary of the System.
Open the required course "Molecules and Cells" in 1, and beautiful pictures will be displayed in front of students, which will easily attract their attention. Teachers can use it flexibly and appropriately, which can stimulate students' enthusiasm in learning biology.
Reflections on the attached catalogue;
1, the leaves of plants are green because what is in the cells? (Figure: Chloroplast in mesophyll cells under high magnification microscope)
2. Blood is red because there is a kind of protein in red blood cells? (Figure: Hemoglobin)
3. What is the basic unit of students' (biological) structure and function? (Figure: submicroscopic structure of animal cells)
4. What is the outermost part of student (animal) cells? (Figure: Schematic diagram of biofilm structure model)
5. Green plants can carry out photosynthesis. Where is the place? (Figure: Schematic diagram of chloroplast three-dimensional structure)
6. Do the cells in students have a life span? If cells die, how to produce new cells to supplement them? (Photo: Mitosis of Animal Cells)
The required course 1 molecules and cells emphasizes understanding the basic structure of cells from a systematic perspective. Functions of cells as a system (matter, energy, information); Basic life system (the emergence, development and extinction of the system). Among them, 1 segment cell membrane is the boundary of the system; Cell organelles-division of labor and cooperation within the system; Section III Core-Control Center of the System.
Through the rough study of the cover and contents, students can have a general understanding of the required course 1 molecules and cells, and initially establish the system theory. Primary sensory cells are the most basic life system, which lays the foundation for the whole book and even the whole compulsory and elective courses.
Third, guide and experience the conversation of Academician Zou Chenglu, which leads to profound thinking.
In a lecture given by Academician Zou Chenglu, the most attractive things for students were "Be honest, tell the truth, tell the truth", "Academician Zou Chenglu's autograph", "People's Daily 1966 report on synthetic bovine insulin", "Pictures of crystallized bovine insulin" and "Energy photos of Academician Zou Chenglu". In teaching, first guide students to pay attention to the above pictures and texts, and then let students communicate while reading. Each student writes down the questions or feelings he wants to ask with a small piece of paper, and the teacher selects their typical answers or shares them after receiving them. Of course, teachers should make full preparations before class.
In a talk by Academician Zou Chenglu, the content is not the most important thing, but the spirit of making students feel about seeing people, things and things; Knowledge, process and sincere entrustment. Between the lines, I feel the perseverance and bold innovation spirit of great scientists, and I also feel the earnest entrustment of great scientists, which arouses students' enthusiasm for exploring science and attracts more biotechnology reserve forces. In a conversation, I think the core content is "do honest things, say honest words, and be honest." If properly inspired, it will have a far-reaching impact on middle school students who have not stepped into society. Teachers should use the most important language to inspire. For example:
UNESCO pointed out that the mission of 2 1 century education is to help students learn to be human, do things, learn to learn and get along well with each other. Lv Xingwei, a famous educator, said profoundly: What is talent? Talent is composed of "people" and "talents", and "people" and "talents" are not necessarily related. Because some people are "people" and "talents", that is, talents; Some people are "people" and have no "talents", so they can't be called talents. Some people have "talents" but not "people", and such people cannot be called talents. Of course, we want unity and "talent", but if we have to make the same choice, I would rather he is a person without talent than a person with talent. The more talented people, the greater the harm. Therefore, talents must become adults first, and then become talents.
Educator Sun Yunxiao once said, "The core of education is not to impart knowledge, but to cultivate a sound personality. A person with a sound personality is a person who can make the world feel at ease; A person's personality is not perfect, he is brilliant on the surface and may collapse at any time. As teachers, we should shoulder the heavy responsibility of teaching and educating people.
Lin Chongde, a professor at Beijing Normal University, does this: I am strict with students. First of all, because the foundation of first-class talents is to sharpen first-class conduct, I emphasize ideals and beliefs, as well as the traditional virtues and morals of hard work. I advocate academic ethics and scientific spirit, and ask students not to change data at will, let alone copy other people's achievements, and ask students to be honest, earnest and upright. There is a classic saying: "Learn to be a teacher and be a model", which requires students to be strict with themselves first.
The spirit of "being honest, speaking honestly and being honest" should run through the whole teaching process, so that biology class can not only impart knowledge, but also teach students to be honest. This is my lifelong pursuit.
Fourth, use news information to introduce more and wider thinking.
2 1 century, China's basic education should comprehensively promote quality education and cultivate a new generation with social responsibility, practical ability, scientific and humanistic literacy and environmental awareness. In biology teaching, to cultivate students' practical ability and sense of social responsibility, we should pay attention to the combination with practical research and application, pay attention to students' life world, and open up the boundary between students' book world and life world. News is undoubtedly the best bridge between the book world and the life world. According to the characteristics of our students, this class can penetrate the following news cases from newspapers:
title
source
Academic goal
If you want to be a doctor of engineering, you must recite Laozi first.
Guangzhou Daily
In view of the idea of quick success and instant benefit in today's society. Strengthen humanistic quality education and cultivate talents who have feelings for their country and nation. This is an understanding of Academician Zou Chenglu's "Do honest things, speak honest words and be honest people".
Do you want to be healthy? Please drink water.
Guangzhou Daily
People's habit is to wait for thirst before drinking water. In fact, when they are thirsty, their bodies are already short of water. It is suggested that students drink water regularly and quantitatively during the day to lay the foundation for learning compounds.
Work immediately after meals, slow brain and poor memory.
Health news
It is suggested that students should work leisurely, pay attention to proper rest after meals, and lay a foundation for the study of blood sugar-related knowledge.
In addition to space rice, Zengcheng also has a new technology, "magnifying glass cultivates the most expensive rice"
Zengcheng Bao
Introduce the scientific and technological achievements around students, stimulate their enthusiasm for learning biology, and take the initiative to participate in the construction of their hometown in the future.
Many patients with litchi disease came to the hospital.
Guangzhou Daily
Litchi is a specialty of Guangdong, especially Chengzeng. Litchi is delicious, but you should not overeat it, otherwise it may stimulate the body to secrete a lot of insulin, leading to dizziness, general weakness and even coma. To lay a foundation for the study of blood sugar-related knowledge.
Teenagers "jump" their height in hot weather.
Health news
Emphasize the scientific truth that increasing exercise and staying up late hinder hormone secretion, and lay the foundation for life activity learning.
Not liking milk makes Guangzhou boys shorter than Japanese boys.
Guangzhou Daily
Tell the students that people in Guangzhou should change their eating habits and pay attention to drinking milk. A cup of fresh milk is better than ten bowls of old fire soup, which lays the foundation for protein's study.
Teachers should pay attention to the biological point of view and consider other factors comprehensively when guiding students to understand the biological problems in news. Teachers are not only imparting biological knowledge, but also discriminating information, educating educators and demonstrating morality. Teachers should infiltrate humanistic education in teaching and cultivate students' humanistic spirit.
Educational practice has proved that introducing some news questions related to textbooks in teaching can open up the connection between students' book world and life world, make students understand the relationship between biology and life more directly, improve students' learning interest and problem-solving ability, broaden students' horizons, and cultivate students' sense of social responsibility and practical ability. Let the students walk into the classroom with questions and walk out of the classroom with more questions. The bell rang, but the students were still thinking.
Fifth, introduce teachers' personal achievements and advocate "loving their teachers and believing in their ways"
No matter ancient or modern, it is possible for a teacher to learn Tao well. Whenever I receive a new class and walk to the podium in the first class, I often see students' suspicious eyes, which is a sign of distrust. If this distrust is not opened, the negative impact can be imagined. Only by making students trust teachers, get close to teachers and me, open psychological barriers, get along well as soon as possible, and form emotional exchanges can good teaching interaction be formed. My approach is to introduce the teacher's personal achievements frankly and win the applause of the students in the first class.
In the first class, I will introduce the last biology college entrance examination to my classmates and try to find out the highlights. For example, although the students who choose biology in our school are all poor, in the college entrance examination in 2004, 22 students achieved excellent results in biology, with an average score of more than 623,700. Therefore, I was invited to the Guangzhou Biology Teaching and Research Association to introduce my college entrance examination experience, which was unexpected in our school. When the students heard this, they applauded warmly.
Students are most interested in the successful case of the last college entrance examination, and of course they also care about whether the teacher is a senior teacher. If time permits, teachers can introduce flexibly. In short, students should know the teacher as soon as possible, trust the teacher, adapt to the teacher and get through the running-in period quickly.
6. Encourage students to read more books and cultivate the awareness of lifelong learning.
At a recent parent-teacher conference, parents exchanged many useful practices and raised many confused questions. One of the parents talked about his concern that the children have no time to study now. Speaking of excitement, he suddenly stood up and said seriously; If you don't study, even college graduates are educated savages! I have been thinking about the expression of that parent these days, and the powerful words echoed in my mind.
Books are the nourishment of the whole world. Life without books is like life without sunshine. Wisdom without books is like a bird without wings. Books promote the progress of the Chinese nation, and let me enrich myself and improve myself unconsciously. Books are the ladder of human progress, in which you can find infinite fun. If a person develops the habit of loving reading, he will never feel lonely all his life, and he has completed the task of lifelong learning.
The first class encourages students to read more books and introduce good books and newspapers related to biology, such as bulletin of biology, journal of biology, popular medicine, biology teaching, general biology and biography of Darwin. The purpose is to broaden students' horizons and solve practical problems flexibly with what they have learned. More importantly, students who are interested in biology can make innovations and discoveries in the field of biology through their own continuous study and efforts. As a teacher, you should read more books and accumulate more, so that you can have a broader cultural literacy, so that your teaching content can be richer and more convincing; In order to meet the needs of both sides, achieve mastery through a comprehensive study; Only in this way can students be effectively stimulated to think independently. Especially with the development of society in 2 1 century, economic globalization and the rapid development of information technology in the network era, students' knowledge source is far from the original dependence on teachers. All these require teachers to master related subjects and knowledge of English and computer at the same time, so as to satisfy students' thirst for knowledge. Give students a bowl of water. It is not enough for a teacher to have a bucket of water. There should be a fresh river or even more. As a teacher, there is a long way to go.
A good beginning is half the battle. For this success, we need to prepare for it all our lives, hoping to avoid it with our peers.