Summary of Personal Work in Chemistry 1 I. Purpose and Requirements of Practice
The fundamental purpose of arranging teaching practice is to further improve students' ideological consciousness, especially their practical working ability of observing, analyzing and solving problems, and to cultivate students into high-quality compound talents who can actively adapt to the needs of socialist modernization. It is embodied in three aspects.
1, use and test the teaching results. The application of teaching results is to try to apply the systematic theoretical knowledge learned in class to practical work, and put forward some targeted suggestions and ideas for the modernization of education and teaching from a theoretical height. Testing the teaching effect is to see how far the classroom teaching is from the actual work, find out the shortcomings in teaching through comprehensive analysis, and provide practical basis for perfecting the teaching plan and reforming the teaching content and methods.
2. Understand and be familiar with the operation of the school. It is very important to cultivate the practical ability of undergraduate students majoring in normal universities. It is not enough to rely solely on classroom teaching, so we must move from classroom to practice.
3. Preview to prepare for employment. Through practice, let yourself find out the gap between your own situation and the actual needs of society, supplement relevant knowledge in time during the later study period, and make full knowledge and ability preparations for job hunting and formal work, thus shortening the psychological transition period from campus to society.
Second, the basic situation of internship
From xx to xx, I had a six-week educational internship in XX No.7 Middle School. In this internship, I realized the role change from student to teacher and the environmental change from school to society. For me, a six-week internship is training before entering the workplace. This internship made me deeply understand the ups and downs of being a teacher, and also made me realize the responsibility of being a teacher.
In this more than a month's time, let me try the bitterness and joy of being a teacher, and also let me realize the responsibility of being a teacher. During the internship, I can be strict with myself as a teacher, pay attention to my words and deeds and gfd everywhere, care about students, and do my best to do every job of teaching and class teacher in a responsible attitude towards students; At the same time, as an intern, I can abide by the rules and regulations of the internship school, respect the leaders and teachers of the internship school, listen to their guidance with an open mind, and work together with other interns to complete the tasks assigned by the internship school, thus shaping the image of college students in the School of Chemistry and Life Sciences of Guangxi Normal University and leaving a good impression on the internship school.
Third, the main content of the internship
1, classroom teaching work
(1) class
According to the unified arrangement of the school, I started my internship on June 10. The teachers here have rich teaching experience, vivid and refined language and active classroom atmosphere, which makes me feel great pressure. But in the face of pressure, I have no choice but to meet the challenge. The previous week was mainly about classes. During this period, my job is to listen to the teacher in class-write lesson plans-try out-revise-try out, and practice and improve repeatedly until I know what a lesson is going to say by heart. Careful preparation and hard study in class made me truly realize the profound connotation of the sentence "Ten minutes on stage and ten years off stage".
(2) classroom teaching
During my internship, I prepared six lesson plans. The real lessons are "sodium compounds" and "alkali metal elements". My class is experimental, and I have to do two or three experiments in class. In the first class, I was so nervous that my palms would sweat. Later, after my own self-adjustment, my mood eased slightly. After getting on the platform, my nervousness disappeared and the class went smoothly. I know that students' interest in chemistry mostly lies in experiments, so I do every experimental exercise carefully before class and practice it repeatedly until the operation steps are accurate and the results are successful. And let the students cooperate to do the demonstration experiment. For example, in the experiment of "blowing fire", I let a student go on stage and blow air into a cotton ball filled with sodium peroxide with a glass tube. I emphasized every little detail and emphasized that students should pay attention to observing experimental phenomena. I take every class seriously, and every class is hard-won. With the consent of the team leader and the instructor, I try to give many lectures before I go to the podium. Due to full preparation, clear thinking and active classroom atmosphere, the teaching objectives and requirements have basically been achieved. I'm in no hurry, steady and orderly. I will explain every knowledge point in detail, focusing on students' weaknesses, such as redox reaction, the balance of chemical equations, and ionic equation's writing. After class, I will listen carefully to the comments of my tutor and group members, and I will also reflect on myself and find out my shortcomings in class.
A, can't control the time well, and spend too much time in some links.
B, we also need to work hard on the extent of classroom knowledge expansion.
C, how to connect the knowledge points well also needs my attention. These conditions reflect that they still need to hone and accumulate experience to continuously improve their own quality.
(3) After-class tutoring
I also use the time of self-study class and evening self-study class to make up lessons for some students with poor foundation, so that they can understand the importance of learning and keep up with other students' footsteps, so as not to sleep and do other things because they don't understand in class. This can just help students check for leaks and fill vacancies. In order to better meet the mid-term exam.
(4) Mid-term inspection
On June 8th, 165438+ we ushered in a three-day mid-term exam in our school. During this period, our job is to supervise, correct and analyze the quality of test papers. During the invigilation, I worked hard, was fair and just, and sent and received papers on time. Every candidate abides by the discipline of the examination room in the examination room, and I can be serious and fair when correcting the papers. Strive for accurate grading and scores for every paper. Finally, I also analyzed the quality of the test paper with my intern teacher and colleagues. This paper analyzes the contents that students have mastered well. Which part loses more points will provide a strong basis for you to improve your teaching direction in the future.
2. The work of the class teacher
The work of the head teacher is an important part of the internship. When I was a class teacher, I deeply realized that it was not easy to manage a class. The head teacher should not only be a good teacher, but also be a good friend. On the first day of entering xx No.7 Middle School, the school arranged for me and my partner to be the internship head teachers of Class 7, Grade 1. My partner and I agreed that I would go to class for the first three weeks and be the head teacher for the next three weeks. With the careful guidance and help of teacher Chen Juan, I successfully completed all the tasks of the head teacher.
Fourth, conclusion:
On the road to being a teacher, I have taken the first step, followed by the second step and the third step ... but in any case, I will put people first and bring everything I have learned from my internship to my future career. I will take care of my students with my heart, because I am facing a pure heart. Although I have heard "Hello, Teacher" countless times, I still smile happily every time I respond. Whenever I stand on the podium and am intently watched by a pair of pure eyes, my sense of value and accomplishment as a teacher arises spontaneously. In this more than a month, I have not been a good teacher, and it is impossible for all students to like me. But as long as one student remembers me, my internship will have indelible highlights. In the internship, I also found that some things can't be chosen, but some things can be chosen. Of course, you should do your work carefully, but brave "volunteering" can win you opportunities. As long as you ask questions, study hard and do hard, you will get unexpected results.
Summary of Personal Work in Chemistry 2 As a college student in the Department of Chemistry, in the summer vacation of 20xx, I went into Chemical Industry Co., Ltd. for a two-week social internship in order to connect with reality and combine the theory and practice I learned. The summary is as follows:
Through the connection with practice, I hope to gain knowledge and skills from actual production, improve my ability to deal with practical problems, cultivate my labor concept and pragmatic style. The most important thing is to exercise my ability through practice and learn things that I can't learn in class. This will play an extremely important role in our future work and study life, and also enable me to adapt to society quickly, deal with interpersonal relationships and prepare for smooth integration into the social environment when I graduate.
By arranging internship in fatty acid workshop, I learned about the production process, the setting of functional departments and their functions, and the internal control process of enterprises. During these ten days, after I went to the production workshop, I first learned about the whole fatty acid production process, from purchasing and warehousing, to picking production, and finally to canning finished products. I had a basic understanding of the production activities of the whole workshop, which laid a good foundation for me to be familiar with the enterprise and carry out practical operations.
Among them, I knew almost nothing about the production of fatty acids before, but after I went to the workshop, I not only understood the production process, but also further understood the production process and use of fatty acids. Due to the limitation of season and temperature, the duration and intensity of startup are also regulated. Besides, I was deeply impressed by my visit to some assembly lines. If you want to be a qualified it staff, you must understand the basic and basic operation links, otherwise it is easy to divorce theory from reality.
After getting familiar with the production process of the workshop, the staff showed me some information such as the previous handover records. In the process of reading these materials, I actively asked the staff for advice. Under their patient guidance, I have a certain understanding of the procedures and methods of product inspection in the workshop. Because chemical production is uninterrupted, there must be people in the workshop at all times, and the workshop staff adopts four shifts and two shifts (65438 hours a day and two days off at night) and regular day shift system. There are four people in my workshop (director, craftsman, etc. ) Long day shift work, others are divided into four classes A, B, C and D, four classes and two classes. Although I have not been officially assigned, I always strictly abide by the production discipline of the workshop, and actively consult other staff when I encounter any unknown points to avoid safety accidents. In the workshop, we must first understand the production process. I first looked at each instrument and equipment and learned their names and uses. When I met something I didn't understand, the craftsman patiently explained it to me. In order to work better, I draw a flow chart to get familiar with the working environment. Of course, the most important thing in chemical production is safety, so the director gave me a safety education lesson as soon as I entered the workshop. The most important thing is "safety first, safety second and safety third". Later, I was arranged to work shifts with them in Class C, so that I could personally participate in the actual production. In my daily work, I learned some technical means to further improve work efficiency. Production process fatty acids are widely used as industrial raw materials, which can be used as raw materials for sludge production, rubber vulcanizing agents, plastic heat stabilizers, lubricants, textile softeners, chemical fiber oil agents and so on. In medicine, it is used to prepare various preparations, solvents, hygroscopic agents and sweeteners. According to the survey, the domestic annual demand for fatty acids is 300,000 tons, and the annual output is 200,000 tons, with a gap of 654.38+10,000 tons, so the market demand is great.
A method for producing fatty acid includes the following steps: raw materials undergo hydrolysis reaction to generate crude fatty acid and glycerol water, and the generated crude fatty acid is distilled to form a finished product, which is characterized in that the hydrolysis reaction is that the raw materials pass through more than two hydrolysis towers, and the hydrolysis towers are heated by heat conducting oil; In the distillation process, the crude fatty acid in the degassing tower is dehydrated and degassed by a vacuum distillation device, and then the finished product is obtained by distillation and condensation.
The third chapter of chemistry summarizes the first problem faced by students entering senior three, and it is also the first problem faced by teachers in the process of chemistry teaching in senior three. To solve this problem, it is necessary to review some senior three chemistry. It is a very important period for middle school chemistry learning, and it is also an important stage for consolidating foundation, optimizing thinking and improving ability. The effect of chemistry review in senior three will directly affect the results of college entrance examination. In order to make students have a good effect on the general review of senior three chemistry and successfully spend this important period, our senior three chemistry preparation group made detailed plans for senior three chemistry teaching in the past year, paid attention to the teaching process, often summarized and reflected, and used different teaching strategies and training methods according to different periods of senior three chemistry.
First, study the data, see the direction clearly, how to carry out the general review of chemistry, and what is the purpose and task of the review? This is just a study, from which we can understand the potential guiding role and look at the review direction, so as to lay the foundation for completing the review task.
1. Looking at the chemistry examination questions in the college entrance examination every year, we can find that one of its outstanding characteristics is continuity and stability, and always keep the principle of seeking change in stability. As long as we focus on the types of college entrance examination in Shanghai in recent years according to the forms of college entrance examination in recent years, we can find some similarities, such as the structure, types, examination methods and ability requirements of the test papers, so as to clarify the review ideas and make corresponding review plans.
2. Pay attention to the changes of new textbooks and new curriculum standards. Compared with the previous textbooks and curriculum standards, the new textbooks and curriculum standards have undergone great changes, such as the adjustment of content, the increase of the proportion of experiments, the infiltration of scientific ideas and methods in the process of knowledge transfer, and the increase of research-based learning content and reading materials such as new technologies and chemical history. Obviously, these changes will be reflected in the college entrance examination proposition. Being familiar with these changes in new textbooks and new curriculum standards is helpful to grasp the direction and depth of review and enhance the purpose of review.
3. Be familiar with the exam instructions. The exam description (that is, the outline) is the basis of the college entrance examination and the "general outline" of chemistry review. Not only reading, but also in-depth research, clear the guiding ideology of the college entrance examination, examination content, examination questions, deep difficulty and proportion, examination ability level requirements. Not only that, we should insist on reading throughout the review process, further enhance our purpose and adjust the review direction at any time.
4. Rational use of other materials. In addition to college entrance examination questions, syllabus, teaching materials, curriculum standards and basic requirements of chemistry teaching, there are many ways and methods to obtain information, such as various professional magazines, famous school questions, network information and so on. However, the use of these materials must be reasonable, which puts high demands on teachers. Teachers themselves should devote themselves to the sea of questions, and then choose training questions and materials. Teachers in the preparation group have a clear division of labor, enjoy resources and have a unified class schedule, all of which are aimed at collecting information extensively, without interfering with review and wasting time.
Second, grasping the outline and putting the relationship right into chemistry teaching in senior three will easily lead to the strange circle of general review: being obsessed with the review materials and falling into the sea of questions. Although a lot of time and energy have been invested, the effect is very small and poor. In this regard, we must keep a clear head in the process of chemistry teaching in senior three and try our best to handle the following relations.
1. The relationship between textbooks and review materials. Textbooks are the basis of the general review of chemistry, and their functions cannot be replaced by any information. Grasping the outline in the general review of chemistry is to make the knowledge of chemistry in middle schools systematic, structured and networked with the examination instructions as the guide and the teaching materials as the main body, and to broaden and deepen it on the basis of the teaching materials. The function of review materials is to serve this purpose. Never put the cart before the horse, and use review materials instead of textbooks. The usual practice is to choose a set of review materials (usually designated by teachers) as the main reference books (classroom exercises are mainly based on one lesson and one practice and teacher's topic selection in China Normal University, unit exercises are mainly based on chemical test evaluation and teacher's topic selection published in Guangming Daily, and college entrance examination simulation training is a total of 12 sets of new textbooks and simulation questions in all districts and counties) for knowledge collation and practice. In the process of reviewing, you should always go back to the textbook, find the foothold and extension of the knowledge in the textbook, and constantly improve and deepen it.
2. Pay attention to the relationship between foundation and cultivating ability. Foundation and ability complement each other. Without foundation, ability lacks the soil to take root and sprout. Because of this, one of the primary tasks of chemistry general review is to review the knowledge and skills of middle school chemistry comprehensively and systematically. Middle school chemistry knowledge and skills are generally divided into five parts: basic concepts and theories of chemistry, elements and their compounds, organic chemistry, chemical experiments and chemical calculations. For example, when reviewing chemical concepts and theories, it is necessary to clarify the essence and scope of application, and to repeatedly remember and deepen the understanding of key knowledge such as composition, structure, properties and changes of substances. The knowledge with strong regularity such as elements and their compounds should be summarized under the guidance of chemical theory, so that the chemical knowledge and skills in middle schools can be structured and regular, and it is convenient to contact, extract and apply when necessary. The work summary is Personal Work Summary of Chemistry in Senior Three. At the same time, it is necessary to standardize the use of chemical terms (such as chemical reaction equation, ionic equation, electrode reaction equation, ionization equation, chemical formula, structural formula, electron type, etc.). ), standardize the expression ability of language and characters, and strive to pass the basic knowledge and skills one by one.
3. The relationship between chemistry and other disciplines. Chemistry is an important basic natural science, which is closely related to mathematics, physics, biology and even social development. There are not only mutual integration and infiltration of knowledge, but also the same or similar methods to analyze and deal with problems. This is not only reflected in textbooks, but also in the college entrance examination questions in recent years, such as chemistry and social production, real life, chemistry and new technologies, new discoveries and other interrelated questions have an increasing trend. Therefore, in the review, we can focus on chemical knowledge, find out the combination and intersection of chemistry and other disciplines, and on this basis, extend and spread to other disciplines, realize the transformation from the knowledge and ability of a single discipline to the comprehensive knowledge and ability of a comprehensive discipline, promote the improvement of comprehensive quality, and effectively cultivate the ability to solve practical problems such as chemistry and society.
4. The relationship between practice and review efficiency. Exercises are an important part of the general review of chemistry, a re-learning and re-understanding process of using knowledge to solve problems, and an important way to promote knowledge transfer, train thinking and improve the ability to analyze and solve problems. But the amount of exercise must be reasonable, on the premise of ensuring quality, to avoid simple mechanical repetition and falling into the ocean of problems. Through practice, strengthen memory, master knowledge skillfully, find out existing problems, make up for weak links, expand the application scope of knowledge, improve ability, and thus improve review efficiency.
Third, think more and think more, improve the ability. The scope of the general review of chemistry is limited. If you want to achieve the best review effect in a limited time, you can only use scientific methods. In the process of teachers' teaching and students' learning, we must use our brains, think more and think better. In the process of chemistry teaching, there are different forms, such as stratified teaching, normal teaching, improving top students and strengthening the foundation of students with learning difficulties. 1. Read the textbook carefully and choose words carefully. Systematic review should be based on teaching materials from beginning to end, and pay attention to the comprehensiveness, emphasis, accuracy, relevance and application of knowledge. Review the knowledge and skills of chemistry in middle schools (junior high schools) one by one; Repeated reading, in-depth understanding of key knowledge in textbooks (we often say test sites), forming a knowledge structure from point to surface; The understanding, application and description of chemical knowledge should be scientific, accurate and comprehensive, such as standardizing the use of chemical terms, correctly and comprehensively expressing experimental phenomena and operational points (especially suitable for students below the intermediate level, using the basis arranged by grade groups to strengthen class hours); The relationship between knowledge points and cause and effect.
For example, the knowledge related to ion reaction, including the writing and judgment of ion reaction equation, the existence of ions, the comparison of ion concentration, the inspection and inference of ions, the change of solution conductivity and so on. Applicability refers to the method of solving practical problems by reviewing applied knowledge, such as the periodic law of elements and periodic table of elements, which is rich in content and can infer the position, structure and properties of elements, predict the properties of unknown elements and compare the advantages and disadvantages of various properties. In addition, we should pay attention to reviewing the contents of chemical experiments (including demonstration experiments in textbooks and grouping experiments after textbooks) and try to do them by ourselves. Through these typical experiments, we can deeply understand the principles of chemical experiments (reaction principle, device principle, operation principle), the design of experimental methods, the processing of experimental results and so on. , and effectively improve our experimental ability. 2. Learn to reflect and improve your ability. The cultivation of ability is another important task of chemistry general review, which usually includes observation ability, thinking ability, experimental ability and calculation ability, among which thinking ability is the core of ability. It is worth noting that the improvement of ability can not be achieved in one day, but through long-term accumulation and conscious cultivation.
Therefore, in the review process, especially after doing questions, unit exams and large-scale exams, we should always look back and stop to think about whether our review is effective, whether our knowledge and skills have been consolidated and deepened, and whether our ability to analyze and solve problems has been improved. We should be good at reviewing knowledge and training in solving problems according to students' reality, instead of simply checking the answers after finishing exercises, we should further think about: what is the content of the problem, what is its essential feature, and are there any other better solutions? We should make more efforts on typical exercises and representative exercises. We should not only do more than one question, but also make up and improve our knowledge, and draw inferences from others. We should understand the ways and mysteries of examining questions, solving problems and answering questions in the process of solving problems and cultivate good thinking quality (rigor, agility, profundity, creativity and extensiveness).
Long-term persistence can turn ordinary into magic: being able to master the inherent laws and relations of chemical knowledge and its application, being good at grasping key points and solving chemical problems flexibly; Can control the whole picture of chemical problems, grasp the connection, compare, summarize and extend; Can find another way to solve practical problems in an eclectic way. In this article, with the help of Qi Xin, the teacher of the preparation group, and the teaching and research group, we focus on students with above-average level.
4. Correcting the mentality and cultivating a healthy, enterprising, confident and self-reliant positive mentality are important guarantees for reviewing well and the key to the success of the college entrance examination. A positive attitude depends on constant adjustment and tempering at ordinary times.
1. Treat the exam correctly. In the review process of senior three, exams are frequent. Due to the negative impact of the lifelong college entrance examination, many students pay more attention to the exam results than the exam itself. Taking every exam at ordinary times as an excellent opportunity for training can expose students' problems, help to find out and fill gaps in the follow-up review, sum up experiences and lessons, so that students will not make mistakes or make fewer mistakes in the college entrance examination, and will not be discouraged by temporary mistakes or difficulties, nor will they be complacent by the progress of their grades.
2. Arrange the study time reasonably. Review doesn't happen overnight. Our body is like a sophisticated instrument, and we must never overload it. On the contrary, it must be maintained to be durable. Therefore, to combine activities with activities, we should not only study hard, but also learn to relax, rest and exercise. Only by combining work and rest and living a regular life can we tide over the difficulties easily. This is the so-called relaxation of civil and military ways.
3. Create a good learning psychological environment. People's psychology and behavior are influenced by various environmental factors. For most senior three students, the biggest impact is probably the pressure of further study and competition. If it is not handled well, it may bring negative effects, which is extremely unfavorable to review. Therefore, in the process of chemistry teaching, students should know themselves correctly and review from their own foundation and reality. Accept yourself happily, fully affirm your progress, find out the existing problems and make up for them in time; Consciously control yourself, adjust yourself with clear goals and good willpower, turn pressure into motivation, and comprehensively improve your quality.