Teaching experience of chemistry teachers 1 This semester, the Chemistry Department of Grade One in our school will use the Chemistry 2 textbook (compulsory) published by Lu Ke to carry out teaching activities. There are four teachers in the chemistry preparation group of senior one. In order to better carry out chemistry teaching, the chemistry preview teaching plan is as follows:
I. Guiding ideology
Earnestly study the Outline of Basic Education Curriculum Reform, Suggestions of Ministry of Education on Implementing Inquiry Learning in Ordinary Senior High Schools and Chemistry Curriculum Standards in Ordinary Senior High Schools, clarify the current direction of basic education curriculum reform, deeply understand the concept of curriculum reform, and comprehensively promote curriculum reform.
The implementation of basic education curriculum reform in teaching has changed the tendency that the curriculum pays too much attention to knowledge transmission and emphasizes the formation of positive learning attitude, making the process of acquiring basic knowledge and skills become the process of learning to learn and forming correct values at the same time; Change the current situation that the course content is difficult, complicated, biased, old and pays too much attention to book knowledge, strengthen the connection between the course content and students' life, modern society and scientific and technological development, pay attention to students' learning interest and experience, and choose the basic knowledge and skills necessary for lifelong learning; It is necessary to change the current situation that the curriculum implementation places too much emphasis on learning, rote learning and mechanical training, advocate the curriculum concept of students' active participation, willingness to explore and hard work, and cultivate students' ability to collect and process information, acquire new knowledge, analyze and solve problems, communicate and cooperate.
Second, the teaching requirements
1. Seriously study the development trend of current education reform, change the traditional teaching concept, pay attention to the cultivation of students' ability, pay attention to the cultivation of students' innovative consciousness and comprehensive ability, pay attention to the education of scientific attitude and methods, and combine ideological education with classroom teaching to promote the healthy development of students and deepen education reform.
2. Strengthen teaching research and improve teaching quality. We advocate promoting teaching by scientific research, promoting scientific research by teaching and making teaching subjective. Teachers should strive to improve their awareness and ability of teaching and scientific research, actively explore scientific, reasonable and adaptable experimental schemes, reform classroom teaching methods, actively explore research-based learning, constantly improve teaching level and professional knowledge, and open up new classroom teaching models. The reform of chemistry classroom teaching and moral education should be put in the first place in preparing lessons.
In the teaching objectives, methods, content determination, homework and correction, unit test and evaluation, and extracurricular tutoring activities, we should think about design from the perspective of cultivating students' noble moral sentiments, innovative spirit and practical ability.
3. Do a good job of investigation and study to truly understand the actual situation of senior one students. We should seriously study learning methods, strengthen the guidance of students' learning methods, strengthen the classification guidance, correctly handle the teaching requirements of different schools and students, and pay attention to improving students' interest in learning chemistry. In teaching, we should give full play to the main role of students and the leading role of teachers to improve teaching efficiency. Advocate the quality demand of 40 minutes, and oppose the bad teaching methods of working overtime to grind students.
4. Pay attention to the implementation of knowledge, strengthen double-base teaching, strengthen review and consolidation at ordinary times, and strengthen exams at ordinary times, so that students' knowledge can be consolidated and systematized in time and their ability can be improved through pre-class review, unit review, stage review and after-class exercise.
This school year, I worked as a chemistry teacher in two chemistry classes in Senior Two. This school year is coming to an end. This semester, according to the teaching plan and new syllabus, the teaching tasks were completed as scheduled. The review content of elective 5 and compulsory 1 round has been completed this semester, and the final review work has been carried out smoothly. Guide study and review in an organized, planned and step-by-step manner, and do a good job in filling vacancies. Whether it is the teacher's writing outline or intensive reading teaching in class, the tacit cooperation between teachers and students is everywhere.
This semester, I adapted to the requirements of teaching work in the new period, strictly demanding myself from all aspects, combining the reality of our school and the reality of students, and being diligent and earnest, so that the teaching work can be carried out in a planned, organized and step-by-step manner. Based on the present and looking forward to the future, in order to make greater progress in the future work, this paper summarizes the teaching work of this semester, hoping to carry forward the advantages, overcome the disadvantages, sum up the examination experience and carry forward the past and forge ahead into the future, so as to promote the academic work in by going up one flight of stairs.
First, prepare lessons carefully, not only for students, but also for textbooks. According to the teaching materials and students' reality, design the class type, draw up the teaching methods to be adopted, record the teaching process procedures and time arrangement in detail, and carefully write the teaching plan. Every class is well prepared, and before each class, we are fully prepared to make various interesting teaching AIDS to attract students' attention. Summarize the class in time after class, write a good teaching postscript, and carefully summarize the knowledge points of each textbook into a set.
Second, strengthen teaching skills, improve teaching quality, and make explanations clear, coherent, accurate, emotional and vivid, with clear clues, distinct levels and concise words. Pay special attention to arouse students' enthusiasm in class, strengthen the communication between teachers and students, fully reflect the main role of students, and let students study easily, easily and happily; Pay attention to simplicity and clarity.
Teaching experience of chemistry teachers 2 With the correct leadership of school leaders and the mutual cooperation of teachers, we have been teaching chemistry for half a semester in Class 3, Grade 1, Senior High School. Looking back on the journey we have traveled in the past six months, we have gained a lot. Since the first half year of school, I have been trying to achieve the teaching objectives stipulated in the syllabus. The education and teaching work of these half schools is summarized as follows:
First, wholeheartedly engage in the education and teaching of chemistry in senior one.
1, carefully prepare each class, prepare courseware, and teach each class carefully. I actively participated in the group lectures and comments, and actively consulted senior teachers Zhang Jian and Lin Xiaohong. In my spare time, I read a lot of books on teaching theory to guide my own practice, so as to constantly improve my knowledge system and improve my education and teaching level.
2. Seriously correct homework, comment on homework, and do a good job of after-school counseling. During the break, I always give serious guidance in class, find students' problems and places that are easily misunderstood and confused in time, analyze the reasons and solve them in time.
3. Pay attention to the teaching of basic concepts and knowledge of elemental compounds, so that students can accurately understand basic concepts and improve their ability to use knowledge flexibly.
4. Insist on inquiry teaching, give full play to the leading role of teachers and the main role of students, actively mobilize students' subjective initiative, and strive to improve students' inquiry ability and methods.
5. Attach importance to chemistry experiment teaching, demonstrate experiments hard, urge students to do experiments well, improve students' hands-on ability, observation ability and analysis ability, and make experiments promote chemistry teaching.
6, do a good job in chapter, unit review and general review, do a good job in evaluating the students, know the students' situation in time, and strengthen the work between classes.
7. Make full use of teaching materials to educate students in patriotism, learn from scientists' scientific attitude of seeking truth from facts, and cultivate students' innovative consciousness.
Second, the work performance
1. In this mid-term exam, the chemistry scores of the three classes were not very satisfactory and did not meet my requirements. The examination questions are basically the knowledge points I have repeatedly talked about. Many students don't have a good grasp of the accuracy of knowledge points and need repeated training to deepen their impression. Some students were careless and lost points seriously, and most of them regretted it, which confirmed Zhuge Liang's statement beforehand. Carelessness exists in everyone, and it is impossible for most students to be completely careful only by minimizing it. Every day, I emphasize paying attention to the examination of questions, which is very important to improve the average score as much as possible.
2, because I work hard, practical and serious, I do have some shortcomings in my work, and I will try my best to overcome them in my future work and achieve greater success.
Teaching Experience of Chemistry Teachers 3 20xx Next semester, I will still be a chemistry teacher in Class (2), (8) and (9) of Senior One. In the past semester, according to the requirements of the teaching plan and new curriculum standards, I completed the teaching task-the teaching of compulsory module 2 of chemistry in senior one as scheduled. This paper summarizes the teaching work of this semester, hoping to carry forward the advantages, overcome the disadvantages, sum up the experience and lessons, and make greater progress in the future work.
First, brainstorm and give full play to group advantages.
At the beginning of the semester, I took part in the lesson preparation group to prepare lessons carefully, carefully worked out the teaching progress of this semester according to the content of the textbook, and copied a work plan for each teacher, and started chemistry teaching in strict accordance with the plan. Prepare lessons collectively every week, try to unify the teaching progress and content next week, discuss key and difficult chapters, use what teaching methods, exchange lesson plans and practice in a unified way. Find and sort out problems through various channels, increase students' knowledge and see various types of problems. We are responsible for searching online, magazines, college entrance examination questions and exercise books over the years, and pieced together five sets of questions for final review. First, it can ensure the quality of the questions, second, the depth is appropriate, and third, the number of questions is moderate, and one lesson can just be taught. Listen to each other, evaluate classes, discuss the explanation of knowledge points and the handling opinions after listening, and participate in the high-quality competition teaching class organized by the school. Make full use of network resources. Before the next class, we will find a time when everyone has no class, listen to the online audio class and see how the famous teacher explains this class. In addition, there are some toxicity experiments and difficult knowledge. We will find some courseware to supplement our class, one is to help us teach in class, and the other is to arouse the enthusiasm of our classmates.
Second, stimulate students' interest in learning and improve their grades.
In the three classes I teach, most students are very serious in class and have strong learning motivation, but there are also a few underachievers who have poor foundation and poor exam results. Some people have no confidence in learning and don't want to learn. In view of this situation, I talked with them and analyzed their situation. For those who are not interested in chemistry, I will tell them the importance of learning chemistry with some practical examples, or tell some interesting chemistry stories to improve their interest. For students who don't study hard, I will encourage them after criticism, set their learning goals and urge them to help them at all times; For students with poor foundation, broken attitude, or excessive inferiority, stage fright and so on, I will help them find out their own learning methods, analyze the reasons, encourage them not to be afraid of failure, give themselves confidence, read more books and practice more at ordinary times, ask more why, and so on. After a period of hard work, most students have developed good study habits and made great progress!
Ask other teachers with an open mind to improve the teaching level.
Third, consult other teachers with an open mind to improve their teaching level.
It is inevitable to encounter many problems in teaching, such as teaching design, teaching methods and means, teaching difficulty control and so on. In order to teach better and achieve better teaching results, I actively seek the opinions of other teachers and learn their methods. At the same time, listen to teachers in the same subject group (especially teachers at the same level), learn from others' advantages, overcome their own shortcomings, invite other teachers to attend classes with an open mind, and listen to their opinions, so as to improve their teaching work and raise their teaching level. In this semester's teaching, my biggest experience is that if you want to teach books well, especially new courses, you must constantly recharge your studies, improve your knowledge system as soon as possible, and improve your ability to optimize teaching materials, optimize and integrate resources, and design classroom teaching. In teaching, I usually read some good chemistry magazines, such as "Chemistry Teaching and Learning in Middle School" and "Chemistry Education", to learn the advanced experience of other chemistry colleagues and exchange teaching. At the same time, we should conscientiously sum up teaching, write a good teaching postscript, organize relevant materials in time, actively write teaching papers, and constantly improve our teaching level.
In a word, there are gains and losses in chemistry teaching for one semester. At the same time, there are many shortcomings. I hope that in the future teaching work, I will constantly improve my teaching level and quality, enhance my teaching philosophy, make contributions to the education of the motherland, let ethnic education reach a new level, and let the flowers of the motherland bloom.
Chemistry teacher's teaching experience 4 Chemistry is an experiment-based subject, which can be divided into demonstration experiments and students' grouping experiments. Many students' interest in chemistry also stems from their love for experiments, so we should attach importance to the important role of experimental teaching in chemistry learning. The new textbook highlights the importance of chemical experiments, especially the addition of inquiry experiments, which further embodies the characteristics of quality education in developing students' intelligence, cultivating students' practical ability and cooperative spirit. So how to do a good experiment class, this paper will briefly talk about some experiences.
First of all, we should pay attention to the creation of problem situations in chemical experiments.
For example, in the second year of senior high school, when you talk about the movement conditions that affect the chemical balance, you can first write the chemical equation 2NO2==N2O4, and then tell students that any chemical reaction is accompanied by this energy change, either endothermic or exothermic. NO2 is a reddish-brown gas, while N2O4 is a colorless gas. Students can analyze that if the balance moves to the right, the gas color becomes lighter, and if the balance moves to the left, the gas color becomes darker. Here, students can think about how to design an experiment to explore the influence of temperature on chemical equilibrium. The teacher will organize discussion and supplement according to the scheme put forward by the students, and then let the students experiment according to their own design scheme, which can greatly arouse the enthusiasm of the students.
Second, analyze the typical experiments, so as to achieve a point-to-surface.
For example, through the experimental analysis of oxygen production in the laboratory, the following operation contents can be summarized:
① Selection, connection and fixation of instruments;
(2) Air tightness inspection of the device;
(3) access to drugs;
④ heating method;
⑤ Purification and drying of gas;
⑥ gas collection and placement;
⑦ Disassembly of equipment. For these operations, it is necessary to explain their theoretical basis and principles so that students can understand them thoroughly. For example, when chlorine gas is prepared by mixing concentrated hydrochloric acid and manganese dioxide in the laboratory, hydrogen chloride and water vapor may be mixed in the prepared chlorine gas because concentrated hydrochloric acid is volatile and the boiling point of water is not high.
To remove it, just wash it with saturated sodium chloride solution, not water. This is because chlorine reacts with water as follows: Cl2+H2O==HCl+HClO. According to the principle of chemical equilibrium movement, the concentration of Cl- in the product can be increased, the equilibrium can be left, and the solubility of chlorine can be reduced. According to the nature of chlorine, if you want to dry chlorine, you can only choose liquid or granular acid desiccant, usually concentrated sulfuric acid as desiccant.
Third, when doing demonstration experiments, we should correctly guide students to observe the experiments.
Generally speaking, we should do the following:
(1) To prevent the spectators from getting lost, beginners of chemistry think that chemical experiments are mysterious, and some students even regard doing experiments as magic, which is very fun. Because they pay attention to "excitement" without a clear observation purpose, it is difficult to grasp the key experimental phenomena, and it is difficult to draw correct experimental conclusions as a result.
(2) can't just stare at one point, to comprehensive observation. When observing chemical experiments, some students only pay attention to the prominent phenomena of stars, while ignoring those less obvious phenomena. If we observe the reaction between sodium and water and only notice the generation of noise and gas, but not the melting of sodium block, we can't conclude that the reaction between sodium and water is exothermic. Observation includes not only seeing with eyes, but also hearing with ears, smelling with nose and touching with hands.
(3) Not so-so, careful comparison, observation experiment can not only observe a rough, especially for similar experiments, but also carefully compare.
④ You can't just observe chemical experiments without thinking, you can't just move your eyes and other senses, but also use your brain to analyze and judge. For example, when observing the oxygen produced in the laboratory, we just need to think at the same time, "Why should we check the air tightness of the device before the experiment?" "Why is the test tube mouth slightly inclined downward?" "At the end of the experiment, why did you take the catheter out of the sink first and then turn off the alcohol lamp?" And other issues, in order to achieve the purpose of "knowing why".
⑤ Clear concepts to prevent some chemical experiments from being confused. If the differences between them are not clearly explained, it is easy to make mistakes when describing experimental phenomena. For example, the concepts of light and flame, smoke and fog, turbidity and precipitation, dissolution and melting are easily confused. Only by paying attention to their differences can we correctly describe such experimental phenomena.
⑥ To prevent the phenomenon of substituting conclusions. Phenomenon is the surface feature of things, and conclusion is the essential feature of things through the analysis of phenomena. They are related, but they cannot replace each other. For example, one of the phenomena of magnesium rod burning in oxygen is "white powder generation", which cannot be described as "magnesium oxide generation". Otherwise, it is not a realistic attitude.
Fourth, do a good job in improving and guiding students' experiments.
The opening of the laboratory provides students with a broad experimental space, but if teachers do not give necessary guidance, its role will inevitably weaken. Therefore, for each experimental operation, students are required not only to have standardized operation skills, but also to have accurate language expression. For example, doing the experiment of carbon dioxide in the laboratory, the drugs and steps are very clear, but in order to cultivate students' exploration and innovation ability, we have improved this experiment and made it appear in the form of exercises. We provided
① Sodium carbonate and dilute hydrochloric acid
② Limestone and dilute sulfuric acid
③ Limestone and concentrated hydrochloric acid
④ Four groups of drugs, limestone and dilute hydrochloric acid, and several experimental devices were designed for students to choose from. Since then, students' curiosity has greatly increased, and they are no longer bound by textbook steps, so they can do experiments by themselves.
During the operation, the teachers toured to guide and correct the mistakes in the operation in time, and the students thought carefully from beginning to end. After repeated experiments, they finally summed up the best scheme for preparing carbon dioxide in the laboratory.
Conscientiously implementing chemical experiment teaching and grasping important links are of great significance to improving chemistry teaching, and can also better cultivate students' interest in learning chemistry and establish a scientific outlook on life and values.
Chemistry teacher's teaching experience 5 The new course has been going on for almost a year, and I deeply feel the influence of the new course on myself. Now let me talk about some experiences.
First, teaching materials:
The advantages are: the presentation of textbook knowledge is vivid and diverse, the ability and methods are emphasized, and the connection with life and production practice is emphasized.
The existing problems are: tight class hours, scattered knowledge system, difficult to grasp the depth and breadth, difficult to implement experimental exploration, and many principles and concepts are too simple, which is not conducive to students' preview and self-study.
For example, the content of the knowledge of elemental compounds in compulsory textbooks has changed significantly: it is no longer divided into "before the periodic law" and "after the periodic law", but only arranged from the perspective of life-chemistry-society-application. The change has prompted thinking: the knowledge of elemental compounds is placed before the material structure and periodic law as a whole, which leads to: What is the editor's intention? The elements and their compounds are reduced from 9- 12 in the original three weeks to 3-4, and the three-dimensional goal should be achieved. How to organize and deal with the teaching content? How to promote students' independent inquiry?
The textbook covers the knowledge of concept principle comprehensively, but the same concept principle is constructed layer by layer in compulsory courses and elective courses, which changes the students' original understanding and way of understanding, but causes the following confusion and thinking: the hierarchical structure formed by concepts and principles, and how to grasp the "degree" of understanding and migration of concepts and principles in compulsory courses.
Second, the teacher:
I feel that the impact is very strong and I can't fully adapt.
The unified curriculum structure has been broken and the teaching materials have been impacted, forcing our teachers to establish a new view of teaching materials. The stable teaching content system has been replaced, which makes us rebuild our knowledge and understanding of chemical science. The single teaching method is challenged, which urges us to learn diversified chemistry teaching methods and strategies. However, the inadaptability to teaching materials is the key to our teachers' professional development, which is worth cherishing and utilizing.
Third, students.
After entering the new curriculum, we found through the questionnaire survey of students that 60% of the students reported that the learning burden was aggravated. About 20% students are tired of learning. There are many reasons, the following are more common.
1. High school enrollment expansion, the level span of students is particularly large, and some students can't take root.
2. Most of the exercises in various teaching AIDS (including after-class exercises in textbooks) contain too many requirements, which are difficult for students to do. ..
In order to enable students to do some exercises, the teacher added some extra knowledge and increased the burden on students.
Fourth, teaching suggestions
(1) Face the reality and pay attention to teaching orientation.
In view of the expansion of high school enrollment and the large span of students' level, it is necessary to clarify the teaching requirements. Teachers in each class should position the teaching objectives, teaching contents, teaching depth and breadth, and teaching difficulty, study the Curriculum Standard, make bold choices, and cultivate students' ability on the premise of ensuring double basics, so that students at all levels can get due improvement and development. Make a scientific, meticulous and operable teaching plan
(2) Change the concept, fully reflect the students' main role.
In the main channel of classroom teaching, teachers should first change their ideas and give full play to students' main role. We should leave more classroom time for students, train them to think rationally and orderly, train them to standardize skilled chemical terms, and train them to express themselves concisely and accurately. Give students enough time and space for thinking, activities and display, so that students can form their abilities while accumulating knowledge. In the process of new curriculum teaching, we can adopt "learning plan guiding method" and "block problem group inquiry teaching method" What students can master by reading books and taking notes, and consolidate and implement through learning plans, is conducive to tapping students' potential.
(3) Use all kinds of teaching materials with caution.
Most of the exercises in the existing teaching AIDS contain too many requirements, especially those that do not meet the requirements of the curriculum concept and curriculum standards. Teachers in each class should make bold choices according to the students' situation, and don't increase the students' burden, do useless work or even make negative contributions.
(4) lay a solid foundation, pay close attention to implementation, pay attention to feedback, and fill vacancies in time.
In the teaching of basic grades, the implementation of basic knowledge is very important, which is related to the establishment of students' knowledge system and the improvement of their ability. Teaching new courses and textbooks for the first time, everything is crossing the river by feeling the stones. Teachers are fully aware of the blind spots in teaching, so they must give feedback in time. Feedback is not necessarily a formal exam. Leave 2-3 questions in each class. When solving problems, students should always prepare a piece of paper, important chemical formulas, equations and experiments.
Operation expression and phenomenon analysis are convenient for students to write and teachers to correct them in time; Or weekly test, the time does not need to be long, the number of questions does not need to be large, and the teacher's batch-by-batch revision is an important feedback to find problems and fill gaps in time.
Teaching experience of chemistry teacher 6 Hello, leaders and colleagues!
This time, I take this opportunity to share my experience with you, which is far from superficial experience and practice. I also hope that leaders and colleagues will criticize and correct the poor performance of our department, because the leaders of our school are the leaders of mathematics, physics and English. Here, I will analyze some practices of our department and the daily teaching management of some teachers with you, hoping to "throw a brick to attract jade" and lead to some practices of more outstanding teachers in our school to learn from.
First, make plans and goals as early as possible.
At the beginning of each semester, Liang School will organize our department to hold a good meeting. Our biochemistry department is quite special. In the first grade, there are so-called sub-subjects, in the second grade, there are regional examination subjects, and in the third grade, there are extremely competitive chemistry subjects. This combination of disciplines requires us to have different encouragement and practices in teacher performance and management. For example, in the first day of junior high school, we set a goal at the beginning of the semester: to win the brother school at the end of the semester, and to win the brother school in the second day of junior high school, ranking first in the region; In the third grade, I won my brother's school, which exceeded the average level in the district, and I tried to be at the forefront of the district.
Second, with one heart and one mind, Qi Xin will work together in Qixin.
It is important for teachers from different schools to get together and spend the running-in period. After all, everyone has their own personality, wants to be respected by others, and wants to highlight their excellent abilities, such as Zeng, Peng Yuanxiang and Wang. They were transferred to our department by other brother schools in the town because of their job transfer. They are new here, have their own personality and practices, and may not adapt to and keep up with me at work immediately. I am a little strict with my work. I hope every teacher will do his duty and have a clear conscience, no matter whether his grades are good or bad. As long as I see that he is doing his best, I have no problem. Everyone knows my personality, but how to make them listen to the command, act in unison and not engage in individualism? I have done some work and scandal before. In group meetings, criticize when you should speak, praise when you should praise, and. Let everyone see and know without selfishness that what is achieved is a group, and no matter how good the individual is, it is not good. If you work hard, no matter how bad you are, you are not poor. We are a family, and then slowly, everyone has no selfishness. If we take out our materials and treasures for many years, we will feel that we are more and more loved, more valuable and more proud. In this way, everyone will work in Qixin, and their grades will be easy to go up and they will be happy to work.
Third, promote healthy competition and learn from each other's strengths.
The teachers in our subject group are equal in strength, whether in biology or chemistry. In the highly competitive field of education, how to guide everyone to normal and healthy competition without deteriorating the relationship? If we do this well, we can truly unite with the outside world. In biology, Wang, Feng Li play a very key and core role. The two leaders of preparing lessons, especially Feng Li, brought all the information about biology. They usually go out to class, wait until the town is lively, and drive as drivers without complaint. There are often various biological competitions in the area, and they will decide the candidates with me and then do them. Because there are only a few teachers coming and going, and there is a competition every year, everyone is bored and helpless. Therefore, ideological work should be done well before selecting candidates, so that they can take part in the competition in a down-to-earth manner and prepare with a sense of superiority. In chemistry, our external competition is really fierce. How can we make good use of the resources of our eight chemistry teachers? Give play to our true strength? At this point, I often praise several excellent teachers, such as Wei, Yang Qilin and Long Yanfeng. Other old teachers will naturally feel nervous and oppressive, and then everyone will compete with each other, exchange every quiz, exam and class without reservation, and discuss the students' situation and solutions together. Besides struggling with poor students with low marks, we are more concerned about who is more qualified, who is more talented and who is more top-notch.
Fourth, do a good job in daily work.
There is really no way to omit a link when you come up with results and do a good routine. Among them, the methods are: 1. First of all, it is most important to prepare lessons collectively and make a suitable study plan. 2. Try to correct students' homework every day, and point out the situation to the other party when you find it; 3. Revise each quiz and test and make a summary. Every teacher is required to make a list of qualified and key students in each class and send it to me. After the exam, check compliance.
Chemistry teacher's teaching experience 7 Chemistry is a natural science that studies the structure, properties and changing laws of substances at the molecular and atomic levels. Based on a large number of experiments, it forms a solid theoretical system and then applies it to a vast space of science and technology. Most chemical concepts and principles involve microscopic interpretation and are abstract. Chemical changes are changes at the atomic or molecular level, which are invisible and intangible. It is difficult for students to understand only by the teacher's language description.
With the development of modern society, more and more new technologies are applied to the field of chemistry teaching. Flash animation teaching can turn abstract into concrete, static into dynamic, and simulate micro-process. It plays an important role in helping students understand the microstructure and chemical reaction principle of substances and teachers to carry out experimental teaching (especially dangerous and toxic experiments).
In the teaching of "chemical bond", the content itself is boring and obscure, so it is difficult to express it in words and to carry out experimental simulation. Ordinary teaching methods can't make students understand the nature of chemical bonds well, but the formation process of ionic bonds and covalent bonds can be displayed intuitively by using flash animation teaching. When studying ionic bonds, Cl2 reacts with Na to form NaCl. It is only obvious to do experiments in macroscopic phenomena. In microstructure, why is NaCl formed according to 1: 1? It is difficult for students to understand that NaCl is generated by microscopic simulation of the process in which sodium atoms lose electrons and chlorine atoms gain electrons. At the same time, experiments and animation simulations are used to make students understand the essence and accuracy of ionic bonds more scientifically after they have intuitive feelings.
When talking about "chemical energy and electric energy", it is difficult to understand the working principle of copper-zinc sulfate primary battery from a microscopic point of view only by language and text description. Through flash animation simulation teaching, students can visually see the direction of electronic movement and the characteristics of bipolar electronic gains and losses. This will not only help students to further understand the structure of matter and the principle of chemical change, but also greatly improve the quality of classroom teaching, attract students' interest and guide them to think further.
Compared with other traditional teaching methods, Flash animation courseware has two advantages: first, it is illustrated and illustrated, which is easy for students to understand and stimulates students' interest in learning chemistry. The second is to simulate abstract concepts, phenomena that are difficult to observe clearly, things that span time and space, and experiments that are difficult to realize, so as to mobilize students' enthusiasm and improve classroom efficiency.
As a teacher, we should constantly learn new computer knowledge, explore and summarize in the teaching process, and fully understand and master the characteristics and methods of flash animation courseware from the teaching methods. Through the courseware making process, teachers can not only improve their comprehensive processing ability, but also improve the classroom teaching effect.