1. Experiment report template 2000 words
Experienced four weeks *** eight credit hours of basic welding science experiments, I feel that I have learned a lot of things, although the sophomore year of their own gold internships when they have learned welding, but at that time, their own principle of welding is a complete lack of understanding, to the now! Basic study of the basic theory of welding teaching and then do the experiment I feel relaxed, because I know a lot of welding principles. Also know that welding is not just welding, there are gas welding and so on.
These four weeks of welding experiments we have learned in general gas welding and welding, gas welding is also divided into mild steel, medium carbon steel and high carbon steel welding, we can clearly feel in the welding process for the high and low carbon steel is obviously different!
One course we learned is the welding of cast iron, cast iron mobility can be clearly felt worse! Before each experimental experience, the teacher always gives us an introduction to the experiments need to pay attention to matters and experimental content! Through the teacher's introduction and after the personal experience can say that we have a good understanding of the content of each experiment and experience.
For this welding experiment my memory is particularly deep, because in the test process I have a lot of problems, the teacher will always give me a detailed explanation of the causes of the problem and how these problems should be solved, such as a test content is a thin plate steel butt. Two thin steel plate, I am very seriously placed on the test plate welding, I thought it was the simplest welding, but the results are not as expected, when I use the flat welding way to the two steel plates welded only to find that the welding of the steel plate appeared after a serious deformation, the original flat steel plate became warped! And because of the welding technology is not good so that the weld seam is very uneven some places even appeared to weld through the phenomenon, in the face of such a welded product I really feel ashamed! But the teacher gave me a detailed explanation of the causes of these problems, such as the steel plate warped because of uneven heat dissipation during the welding process, these phenomena can be solved with experience. For welding through the hole in the teacher held my hand little by little to fill it, the teacher told me that this is due to the Han arc is too short and the welding speed is too slow! He also encouraged me not to be discouraged, I was very touched!
I am very annoyed that I have a theoretical knowledge but still welding so poor results, so I think this experiment is very necessary for us to learn a lot of theoretical knowledge of the students is very helpful, it makes us see the gap between their own and the lack of experience, and need to study diligently at the same time focus on the practical application, so that it should be a comprehensive and practical! The first step is to make sure that you have a good understanding of what you are doing and how you are doing it!
2. Experiment report template 2000 words
This time, the experiment a *** do three:
1, metal foil strain gauges: single-arm, half-bridge, full-bridge comparisons;
2, rotary mechanism vibration measurements and spectral analysis;
3, cantilever beams of the first-order intrinsic frequency and damping Coefficient test. Each has its own characteristics.
Through this experiment, I was very eye-opening, because this experiment, especially the rotary vibration measurement and spectral analysis and cantilever beam first-order intrinsic frequency and damping coefficient test, you need to use the software programming, and computer display output. It can be said to be semi-automated. Therefore, in the process of the experiment, I am very easy: it makes me y appreciate the theoretical knowledge preparation before the experiment, that is to say, to understand the relevant materials of the experiment to be done beforehand, such as: experimental requirements, experimental content, experimental steps, the most important thing is to record what data and how to do data processing, and so on. Although the experiment, the instructor will explain the experimental steps and how to record data, but if they do not have some basic knowledge, then it is very difficult to do it, only to do as instructed by the teacher haphazardly, in fact, they do not know what to do.
In this experiment, I learned a lot of things, strengthened my hands-on ability, and developed my independent thinking ability. Especially when doing the lab report, because there are many problems when doing data processing, if not solved, it will be difficult to continue. For example: data processing, encountered to carry out data acquisition, which requires knowledge of labview software some basic operations; and drawing, but also to use the software drawing, which also requires knowledge of excel software insert chart command. And in doing rotary vibration measurement and spectral analysis experiments, get data, pay attention to read the waveform to change the sampling frequency, and so on. Of course, not only learned these, here I will not say more.
And hands-on this experiment, so that some of the theoretical knowledge of this course of test technology combined with practice, more profound my understanding of this course of test technology, consolidate my theoretical knowledge.
However, although this experiment is good, but I think it is not a very good arrangement of time, and test technology examination time, because these schedules and our course design time conflict, so I can not concentrate on any one, the results can not guarantee the quality of each project, so if there is any error please point out!
3. Lab Report Template 2000 words
Biology is a natural science based on experiments, and the development of modern biological sciences is particularly dependent on scientific experiments. In biology teaching, practical aspects such as experimentation, learning and observation play a vital role in our mastery of biological knowledge, scientific method, cultivating our hands-on ability and forming scientific quality. It is for this reason that from the beginning of our contact with the subject of biology, there have been a constant program of biological experiments to exercise our various abilities.
But it is also true that I have had a variety of biology laboratory classes, I feel more y this time to do the modern biotechnology integrated experiment on how much impact on me.
In the first class, the teacher explained in detail the series of experiments we need to complete this semester. The first class explained to us in detail the series of experiments we need to complete this semester, which are all interlocking, embedded tightly, a bit of a move that is lost, the full plate of the pressure, but we are more with a kind of excitement, can not wait to get their hands on the knowledge they have learned, seriously complete the set of experiments, and also to see the end of that gratifying results. So delusional, we started from the second week of the long journey of modern biotechnology comprehensive experiment.
Because the teacher did not require the experimental time, we are free to the laboratory to drill, but also less of the previous experimental class, because some of the number of experimental equipment is missing, students every time to do experiments are you push me to yell, resulting in the loss of interest in experiments. So that the attitude of doing experiments more and more lax, or even simply go through the motions, a few experimental classes down, the enthusiasm is all gone. But according to Mr. Jin's proposal, we come to the experiment at different times, so that the time of the use of the instrument staggered, reducing the competition for the instrument or medicine and the noisy scene, the experiment has become a lot smoother.
Mr. Jin will be very sympathetic to some of the first to start busy students, writing on the blackboard to clear their experiments will probably do the steps and precautions, the preparation of the back of the experiments and the requirements, and then began to busy experiments and running between the students wandering. Observing our experimental operations, or from time to time to point out to explain the reasons for our experimental steps; the role of experimental drugs; how to do will get better results; experiments did not get good results or the reasons for failure. However, with the development of the experiment, more often than not, after we have read the book on the requirements of the experimental steps, to pester Mr. Jin, around him, asking him about the experiment of various issues, even if the same question was asked many times, Mr. Jin is still a kind smile one by one to answer our questions, his approachability, his careful teaching, his not arrogant and not impatient, his patience and smile have y touched every student in the experiment. The first time I saw this, I was able to see it in the center of the room, and I was able to see it in the center of the room.
In fact, his way of teaching, the highlight lies in this, independent experiments force us to carefully taste the steps in the drop; the experimental process of the emergence of a variety of problems, we will be required to think about how to eliminate, continue to experiment; the results of the experiment is not ideal, but also to force us to seriously review any details of the experiments to find out where the problem is, but also need us to go to the deeper understanding of this step of the experiment, the mechanism, the rationale for the use of drugs, and the reason for the experiment. It will also require us to y understand the mechanism of this step of the experiment, the reason for the use of drugs, the requirements of the experimental operation and so on. The experience accumulated gradually through their own hands and brains, is in the past at any time has not been obtained, then, only know in accordance with the teacher and books written steps to, do not care why to do so, so less exploration of the experiment, can learn things naturally also reduced.
After talking about the views of Mr. Kim and the teacher's way of education, I would like to talk about what I have gained from this kind of teaching guidance.
I am a very lazy person, before doing experiments, most of them are reading from the book, rarely use their brains to think about the causes and consequences of the experiment, on the stage of the teacher's explanations are half-understanding of the mix. However, this experiment really let me very much brain, have a deep understanding of the principles, the mechanism of experimental operations, the use of instruments, to help me correct and skilled many operations, while letting me realize my previous confusion and irresponsibility, but also let me appreciate the wholeheartedly into a thing, is so happy and satisfied, but also got a lot of knowledge in the classroom can never be obtained. Here, specifically, are a few not-so-small things I've learned.
First, mixing the laboratory for a long time, I have the "function" that can "change" any vessel we want, as long as the laboratory and we know the items (the teacher packaged up does not count), whether it is a drug reagent, or a different size measuring cylinder test tubes, or a different size measuring cylinder test tubes, or a different size measuring cylinder test tubes, or a different size measuring cylinder test tubes, or a different size measuring cylinder test tubes, or a different size measuring cylinder test tubes. I was able to figure out the different sizes of measuring cylinders and test tubes, saving me the time and effort of looking around for help from the teacher.
The second piece, learned to configure a lot of reagents, so I know the different reagents need to pay attention to the configuration of the problem, consolidated some of the knowledge related to drugs, and in the configuration of a number of times, came to the conclusion that: if you are not very familiar with the formula of the reagents, it is to take a special notebook to record down, in case of emergencies, so that the future experiments will not be because of reagent problems and messy.
The third thing to do is to take a special book to record the reagent formula.
The third piece, the experimental steps need to carefully consider the mystery, each step so that, naturally, there is the intention of the predecessor, after all, these experiments are the past scientists to study the essence of the inheritance, to understand their intentions and the original reason, to do experiments will be more comfortable and not easy to forget or error.
The fourth, this is my experience, not all from the experiment, and not only applied to do experiments, this experience is: after deciding to do something, consider the action will need to use some of what, do something, will be ready to do a good job for the follow-up action to pave the way for the rule of its list, it will make the experiments or anything else to do a more smooth and organized, eliminating the need to do too much useless work.
These are some of the insights I have gained from the modern biotechnology comprehensive experiment in this semester. I hope that in the next semester, I can apply what I have learned here to other experiments and even to my study life, to expand my knowledge, to broaden my horizons, to thicken my own heritage, to strengthen my own abilities, and I do not dare to say that I want to become a first-class talent in the future of the biological world, but I can only encourage myself to become a useful person to live up to the expectations of the people.
4. Lab report template 2000 words
Experimental teaching is an important part of the teaching of electrician class, electrician knowledge can not be taught without experiments, experimental teaching is also an important means to inspire students to think, mobilize students' enthusiasm, and cultivate students' hands-on ability, so the teaching of electrician should be strengthened experimental teaching to further improve the quality of teaching. In order to further improve the quality of teaching, electrician experimental experience.
First, give full play to the role of experimental teaching in the teaching process.
1, experimental teaching is conducive to stimulate students' interest in learning and curiosity
"Interest is the teacher" in the teaching of electrical engineering courses, although there are more abstract concepts, complex circuits and equipment, but as long as the teacher gives the students a good job to do the correct demonstration, to guide the students to test the theory of the hands will greatly stimulate student interest in learning and curiosity. Stimulate students' interest in learning and curiosity. For example, in the "motor and transformer" course teaching, about the rotating magnetic field of the AC motor, a three-phase hand-cranked generator and motor, load model as a demonstration, when connected to the three-phase load (small bulb), hand-cranked generator, the bulb will be bright, when the students are eager to try. If you change the motor three-phase symmetrical windings, and put a small magnetic needle into it, hand crank the generator, the small magnetic needle will turn. If you turn backwards, it also turns backwards, if you accelerate, it also accelerates. When the direction of rotation of the generator remains unchanged and the two power cables are switched, it is found that the direction of rotation of the small magnetic needle will also change. When one of the power cords is disconnected, the small magnetic needle no longer rotates. The students will produce a series of question marks, if this time from a theoretical point of view to analyze one by one, will receive good teaching results.
2, experimental teaching is conducive to the development of students' creative thinking and practical ability
The current textbook problem is that: the purpose of each experiment, the use of equipment, content, methods, steps and even record the form is complete, the students only need to "take the medicine", without independent thinking, the lack of students to design the experiment. The lack of students to design experiments, to give students to think about the experimental design less, suppressed the student's personality and learning enthusiasm, binding the creative ability of students and learning enthusiasm.
In order to train students to learn knowledge and use knowledge, teachers should give a loose thinking environment. To reflect the students' main position in the experiment, let the students become the explorer of the experiment. Therefore, teachers should make up their own experimental materials according to the school's situation, and can change some traditional verification experiments into inquiry-based experiments, innovative experiments, design experiments, etc., and adopt the open classroom teaching mode of heuristic, discussion and inquiry, which is conducive to the cultivation of students' innovative ability. For example, "motor and transformer" in the "three-phase squirrel-cage asynchronous motor start-up" experiment, can be opened as an inquiry-based experiments, experiments before putting forward a few questions for students to study and think. Such as three-phase squirrel-cage asynchronous motor starting current is how much? What methods are used to reduce its starting current? Teachers should actively encourage students to use different starting methods and design their own circuits to complete the experiment. This changes the traditional experimental teaching methods, so that students experience the joy of success in innovation, and develop positive thinking ability and practical ability.
3, experimental teaching helps to cultivate the scientific spirit of truth-seeking and pragmatic students
Learning not only requires intelligence, ability, but also the need for truth-seeking and pragmatic scientific spirit. Instrumentation errors, reading errors, unstable power supply voltage, poor line contact, wiring errors and other faults will affect the experimental results, resulting in practice and theory of the disconnect. This requires students in the experimental process, to be realistic and truthful record of experimental data and phenomena, do not allow man-made changes, the teacher should patiently guide students to think positively, seriously analyze the errors and the causes of errors. Then, as far as possible, arrange for students to redo the experiment, until the correct experimental results. Through the experimental teaching to cultivate students rigorous, realistic style of science.
Second, optimize the content of experimental teaching, improve the quality of experimental teaching.
Multimedia because of its image and interactivity, so that students can concentrate more and improve learning efficiency. Teaching with interactive television than the success rate of ordinary teaching will greatly increase, while the training time is greatly reduced. Its superiority and practicality fully embodied in the experimental classes, operational skills training, teaching internships and many other aspects of the practical teaching of electricians can be used to visualize the technology to make the original abstract, microscopic, experimental difficulty, high cost, examples of rare or unable to demonstrate the content, such as in the "motor and transformer" course on the "three-phase asynchronous motor in operation monitoring and common faults Analysis of the "explanation, due to the high cost of experiments, difficult and unable to demonstrate some of the failure phenomenon, in the lecture can only give examples to illustrate, the teaching effect is poor.
In this regard, teachers make their own courseware, with multimedia three-dimensional graphics or CAD electronic simulation technology to simulate the operation of the motor and the motor's common failure phenomena, to carry out a new teaching, can achieve twice the result with half the effort. Teachers and then combined with the experimental equipment to analyze and explain the complex, boring content has become intuitive, interesting, easy to understand, fully mobilize the enthusiasm of students to improve the experimental results, timely and concise and clear explanation, leaving a deep impression on the students, so that learning has become easy and enjoyable, and improve the students' interest in learning. In addition, it is also possible to play before each experiment this . Experimental essentials to ease the repetition of many experimental sessions to the workload of the laboratory teacher.
Third, pay attention to the guidance process of experimental teaching.
1, the centralized explanation at the beginning of the laboratory class. Explanation to clarify the purpose of the experiment, requirements, principles, steps, precautions. The use of instrumentation while explaining, demonstration, clearly put forward the quality standards of the experiment, in order to facilitate the implementation of the purpose of the experiment.
2, in the experimental operation of the patrol guidance, timely treatment of the problems found. For example, in the guidance of students in the three-phase circuit load star and triangle connection experiments, found that some students for the wiring basis is not clear, I will first guide the students to distinguish which is the phase line? Which is the neutral? What voltage is applied to each phase of the load when connected in star? What voltage is applied to each phase of the load in a triangular connection? What is the voltage between phase and neutral? What is the voltage between phase and phase? With the solution of these problems one by one, so that students understand why the three-phase loads in the star connection should be connected to the phase line and the neutral line between the three-phase loads in the triangular connection, while the three-phase loads in the phase line and the phase line between the students in the practice of reviewing the method of star and triangle connection, phase voltage, line voltage and other concepts. Next, students were instructed to use meters to measure the phase voltage, line voltage, line current, and phase current that the loads were subjected to during the different connection methods. The students then verify the different relationship between line current and phase current in different connection methods and whether the loads in each phase are subjected to phase voltage or line voltage in different connection methods. If necessary, then organize the students to observe the teacher's demonstration operation, and then let the students experiment, in order to cultivate students' standard operation skills. Teachers should find problems and give corrections and guidance in time during the inspection and guidance, and seize every detail to strictly control. For generalized problems, the experiment should be suspended, and then continue after centralized guidance. Teachers in the inspection and guidance process, but also timely assessment of students' operational skills, so that they are both encouraged and inspired.
3, do a good job summarizing the experiment. Teachers should be a few minutes before the end of the experiment to summarize the experimental situation, including experiments to verify the relevant theoretical knowledge, experiments achieved, experiments in the problem, how to avoid and so on. After the class, the teacher should write a good record of the class, summarize the experience and problems, so as to facilitate the preparation of the next experiment, and constantly improve the quality of experimental teaching.
5. Experiment report template 2000 words
Chemistry is an experiment-based course closely related to life and production. The practicality of chemical knowledge is very strong, so the experiment is very important.
At the beginning of the experiment, due to the students' poor theoretical knowledge base, they encountered a lot of difficulties in the experimental process, which also made the students feel the importance of theoretical knowledge. Let the students in the experiment to find problems, their own books, independent thinking, and ultimately solve the problem, which also deepens the students' understanding of the theoretical knowledge of the textbook, to achieve a "win-win" effect. Before doing the experiment, be sure to eat through the knowledge of the textbook, because it is the basis for doing experiments, experiments before the preparation of theoretical knowledge, that is, beforehand to understand the experiments to be done in the relevant information, such as: experimental requirements, experimental content, experimental steps, and most importantly to record the experimental phenomena and so on. Otherwise, the teacher will not understand the explanation, which will make the experiment more difficult to do, wasting valuable time to do the experiment. For example, the electrolysis of saturated saline method of chlorine gas production experiment to be clear about the connection of the experimental apparatus, if not clear, in the experiments to fumble, which will make you a great waste of time, will be twice as much effort.
Although the experiment, the teacher will explain the experimental steps, but if you do not have some basic knowledge, then it is very difficult to do it, only to haphazardly according to the teacher instructed to do, in fact, they do not know what to do. Doing experiments, must be personally, be sure to every step, every detail clear, understand, after the experiment, but also review, think, so that the impression is deep, remember to be firm, otherwise, after a short period of time will be forgotten, it is better not to do. Doing experiments, the teacher will be based on their own personal experience, some textbooks do not have the knowledge to teach students, to broaden the horizons of students, so that students realize that the application of this course in life is so wide.
Students should never do experiments, to have their own views, so that we must be fully prepared, if you do not know what is an experiment, then do it in vain. Experiments are always related to textbook knowledge in the experimental process, we should try to minimize the operation of the blindness to improve the efficiency of the experiment to ensure that some people start to rush to do, but the result is the more you do the busier you get, mainly because of this reason. When doing experiments, the beginning of the experiment did not seriously eat through the experimental steps, busy connecting the experimental apparatus, add drugs, the results of the experiment failed, and finally had to find other students to help. Especially when doing the experimental report, because the experimental phenomenon of many problems, if not solved, it will be difficult to continue, for reflection questions, do not understand the place, you can discuss with each other, ask the teacher.
We do not do experiments to be set in stone and stick to the rules, there should be a spirit of improvement and innovation. In fact, on the basis of understanding the experimental principles, our time is sufficient to do the experiment should be at ease, if the innovation is a difficult thing for us, it is always possible to improve. For example, in doing the experiment of the reaction between copper metal and concentrated sulfuric acid, we can improve the experiment by making our own device.
In the process of the experiment to train students to independently analyze and solve problems. The premise of developing this ability is the students' attitude towards each experiment. If students are casual in this aspect of the experiment, waiting for the teacher to teach how to do, take the report of their classmates to copy, although the student's grades will be high, but it is not good for future work.
The process of experimentation cultivates students' ability to study problems in practice, analyze and solve problems, as well as cultivate good inquiry ability and scientific ethics, such as teamwork, communication skills, independent thinking, the ability to capture information on the experimental frontier, etc.; improves students' hands-on ability, cultivates the style of theory and practice, and enhances the sense of innovation.