Experiment is practice, and chemical experiment and theory should be inseparable. The following is a model essay collected by Bian Xiao to explore and cultivate students' innovative consciousness and ability for your reading.
Chemistry is not only the mutual application of various formulas, but also the mutual influence and transformation of different substances and molecules. Chemistry can be interpreted as the practical application of modern science, an innovation and an effective way to improve people's lives. Chemical experiment teaching is an opportunity for students to learn chemical theoretical knowledge and get practical operation. At the same time, students' innovative ability in the field of chemistry directly reflects their mastery and understanding of chemical knowledge. As for students' chemical innovation ability, it is not to create new chemical theories and discover new chemical elements, but to have innovative consciousness and chemical application ability, so that this consciousness has practical significance.
1 understanding of chemical experiments
1. 1 deviation of experimental target
Chemical experiment teaching is to increase students' practical experience through the practical operation of chemical knowledge, and to avoid students being in a hurry when they encounter chemical problems in their lives. Moreover, chemical experiments can let students personally feel the changes and mysteries of chemistry, which is a more intuitive feeling in vision and taste. On the one hand, it can improve students' understanding and learning effect of chemistry, and at the same time increase students' interest in learning and thirst for knowledge. However, some chemistry teachers pay too much attention to the attraction of chemical effects to students, thus ignoring the promotion and help of the effects of chemical experiments on chemistry teaching, which leads some students to be only interested in the magical effects of chemical experiments in chemistry teaching, but take a negative attitude when learning other theoretical knowledge. As a result, students only have a "fun" attitude towards chemical experiments and lose the opportunity to learn. This is because chemistry teachers have no clear educational goals for chemical experiments, so that students only pay attention to chemical effects, such as:
The color of the flame when different combustible materials burn, the smell produced by the mixing of different liquids, the solidification situation, etc. Moreover, because students like the entertainment of chemical experiments too much, they will ignore the safety in the process of chemical experiments, which greatly increases the threat of chemical experiments to students.
1.2 separation of experiment and theory
Experiment is practice, and chemical experiment and theory should be inseparable. The content of the experiment can be said to be the theoretical operation process. One function of the experiment is to confirm the correctness of the theory and strengthen the chemical knowledge in students' minds. However, some teachers pay too much attention to the experimental process in experimental teaching, but make students forget the corresponding theoretical knowledge. At the end of the experiment, students only remember the effect of chemical reaction of different substances, but they don't know the fundamental principle of this change. Take the simplest example: everyone knows that iron will rust, but few people know the principle of its rust, the changes of iron molecules when it rusts and how to prevent iron from rusting.
2 How to cultivate students' innovative consciousness and ability
2. 1 Student-oriented education
In recent years, many reports or articles will improve the content of students' hard work and celebrate the way students sell, burn and tear books after graduation, and at the same time celebrate their escape from suffering. The ability of "innovation" can be said to be a manifestation of students' love for chemistry. Students who are not interested in chemistry or even hate chemistry will not have innovative consciousness in this respect, let alone cultivate their ability, and innovation is the process and final result of repeated thinking and practice. In chemistry experiment teaching, it is very difficult for students to explore what they don't like independently, and the effect will be very poor. Therefore, when teachers are in the experimental class, their teaching contents and methods should be student-centered, and the direction and steps of experimental teaching should be determined by understanding and analyzing the contents and ideas discussed between students and the problems existing in the experimental process. Including: the phenomena related to chemistry that students are most interested in, the chemical experiments that are most closely related to students, and the teaching methods for different problems and students (that is, teaching students in accordance with their aptitude).
Student-centered chemical experiment teaching is the basis of cultivating students' innovative ability, because "innovation" is students' independent learning style, not a learning process in front of schools and teachers.
2.2 Effective combination of chemical experiments and students' life
Chemistry is an indispensable common phenomenon and product in students' daily life, such as glass and plastic, and it is the most common substance produced by chemical reaction in modern people's life. According to the teaching goal of cultivating students' innovative ability, through the integration of chemical experiments and students' life, students are always aware of the existence of chemistry and increase the opportunities to explore chemistry. For example, the human body is always undergoing chemical reactions in students' lives, which has the closest relationship with students. In the previous chemical experiment teaching, the chemical reaction of human fat was too simple. Students all know that fat will dissolve when heated, so people with the same amount of exercise and the same food are not without examples of being fat and thin. This is because of different constitutions, but it can also be said that different constitutions have different chemical reactions. Through this most common chemical reaction in life, students can analyze its causes and process, and finally explore effective methods to reduce excess fat in human body, which not only improves students' desire for research, but also enables students to use chemical knowledge repeatedly in their later lives. Bringing chemistry experiments into life can effectively enable students to apply innovative consciousness to chemical phenomena in daily life, and enable students to continuously improve their innovative ability in a relaxed and comfortable environment.
2.3 Effective use of chemical experiment notes
The notes here do not refer to the notes of integrating the chemical formula that the teacher has said, nor to the main points of the teacher's lecture in chemistry class, but to the doubts and problems that the students themselves have in the chemical experiment. Including which step is easy to go wrong in the chemical experiment, what matters need attention, and the students' own ideas during the experiment. The speed and understanding of students' learning chemistry knowledge are different. After an experimental class, many students have unsolved problems. If you don't ask the teacher in time, they may forget their own problems. Even if the students' own problems are solved in the experiment, they may appear repeatedly in the future chemistry experiments. Chemical experiment notes are a summary of the causes, analysis process and final solutions of problems in the experiment, and innovation requires a lot of knowledge and experience.
3 Conclusion
In recent years, the continuous implementation of educational system reforms such as "new curriculum reform" shows that the state pays more and more attention to the future development of education, and pays more and more attention to the cultivation of students' autonomous learning, interest and attitude, which are all important factors in cultivating students' innovative ability. Therefore, in chemical experiment teaching, we should pay special attention to cultivating students' independent innovation ability, rather than innovating under the supervision and order of teachers.
References:
[1] Zhao Yuhua. How to cultivate students' innovative ability in chemical experiment teaching [J]. Coal technology? ,2006(04): 134- 136.
[2] Ren Shimin. Exploring the Effective Strategies of Inquiry Teaching in Senior High School Chemistry Experiments [J]. Science and Technology Public (Science and Technology Education), 201(09): 35.
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Analysis on the guidance of cultivating engineering thinking in applied chemistry
Abstract: Through applied chemistry, this paper analyzes the practice planning activities of cultivating engineering thinking and guiding work summary in advance according to the theory, which is called engineering thinking. It is an innovative attempt to establish and cultivate engineering thinking through applied chemistry to guide current work. Starting with the characteristics and connotation of engineering thinking, this paper analyzes the extremely important role of applied chemistry in cultivating engineering thinking.
In order to achieve practical goals, practical planning activities are carried out in advance according to the theory, which is called engineering thinking. It is an innovative attempt to establish and cultivate engineering thinking through applied chemistry to guide current work. Starting with the characteristics and connotation of engineering thinking, this paper analyzes the great significance of applied chemistry to the cultivation of engineering thinking.
Keywords engineering thinking; Applied chemistry; Guide the work
With the construction of national economy and the improvement of people's living standards, the demand for chemical products in life is getting higher and higher. At the same time, in the process of continuous demand for chemical products, the research of applied chemistry has also developed rapidly. It plays an important role in cultivating engineering thinking through applied chemistry. In order to guide the work better, it is a good idea to cultivate engineering thinking in applied chemistry to guide the current work. Applied chemistry is of great significance for cultivating engineering thinking and guiding current work.
1. Characteristics of engineering thinking
Engineering thinking is a kind of planning thinking, that is, engineers' practical thinking activities in engineering design and application research based on theory and human practical purposes. As the core of applying knowledge to solve engineering practice problems, engineering thinking has the following characteristics:
1. 1 Engineering thinking is very comprehensive.
It has the characteristics of complexity and diversity in the process of solving practical projects. Because engineering thinking is to solve the problems in the actual process of engineering, its thinking methods and ways need to be distinguished. According to the engineering practical experience and various principles in natural science, we should comprehensively observe and study the thinking objects at multiple levels and angles, so as to achieve the purpose of solving problems. In the process of solving practical problems with engineering thinking, not only professional technical knowledge and experience will be involved, but also natural science, humanities and social sciences.
Any way of thinking is a pre-planned thinking activity aimed at solving practical problems. Engineering thinking is based on engineering practice and real life, and uses engineering technology and scientific theory to solve problems at the same time.
1.3 engineering thinking innovation.
Innovation is not a simple transformation and repair of outdated old things, but a qualitative change process of fundamental change. In the process of solving problems, engineering thinking has both the gradual accumulation of existing ideas and the leap change of epiphany, which is the qualitative change of thinking process, that is, innovation.
2. The significance of applied chemistry in establishing and cultivating engineering thinking.
Because engineering thinking has the above characteristics, it can be concluded that engineering thinking, as the basis of cultivating people's practical work ability, can get twice the result with half the effort in guiding work, and engineering thinking can better meet the work requirements and objectives [1]. This is because applied chemistry also has several characteristics:
2. 1 the close relationship between applied chemistry and modern society
As one of the important components of scientific and technological modernization, chemical application highlights the idea that scientific and technological modernization is the key to modernization. Materials, information and energy are the three pillars of modern science and technology. The dependence of materials on applied chemistry determines the important position of applied chemistry in the process of scientific and technological modernization. On the basis of applying chemical theory, the theory can be better applied to the actual process of chemical industry development. Therefore, applied chemistry plays an extremely important role in cultivating engineering thinking for modern society.
2.2 The scope of chemical research is gradually expanding.
With the rapid development of science and technology, the scope of chemical research should not only be studied from the perspective of micro and human social life, but also go deep into various fields from the macro perspective. In this process, many interdisciplinary subjects have been formed, such as energy chemistry, environmental chemistry and life chemistry. The expanding scope of chemical research is particularly important for its application and development.
2.3 Applied chemistry is closely related to human life and national economic construction.
Applied chemistry has a great influence on the quality improvement of national living standards. Many social problems, such as population, energy and environmental protection, are closely related to applied chemistry, and they are also the key topics that applied chemistry needs to study [2].
3. How to cultivate engineering thinking and guide the work of applied chemistry specialty?
As a complete process, engineering activities include three stages: design, manufacture and use. Engineering thinking has corresponding thinking process for different stages of engineering activities, and also has its own thinking form and emphasis in each stage of engineering thinking. Therefore, it plays an important role in cultivating engineering thinking in different stages of chemical application:
3. 1 Cultivation of thinking design stage of applied chemical engineering
In engineering activities, engineering thinking should first plan and think about the labor and materials involved in the project under the new demand, which is the first stage of engineering thinking: design thinking stage.
In the design stage of engineering thinking, the concrete blueprint of man-made objects should be designed according to the needs of implementers. At the same time, engineering thinking is facing the possibility of transforming from realistic feasibility to potential possibility. It is necessary to find out the gap and contradiction between engineering reality and ideal and solve it through thinking. Because of the complexity and complexity of engineering activities, the design and solution of engineering thinking need to consider the integration of multidisciplinary and interdisciplinary. Therefore, engineering design thinking should focus on the utility and function of engineering in applied chemistry, apply rules, concepts and models, and apply engineering thinking to reality through practical thinking.
3.2 Training of Engineering Thinking in the Manufacturing Stage of Applied Chemistry
The thinking of engineering production should start with design and action. Manufacturing thinking is an effective thinking process in the construction of engineering activities. Manufacturing thinking ensures the consistency and coherence of engineering manufacturing activities by organizing the work of engineering materials and management, coordinating the staff of all parties in engineering activities, and correctly handling various relations through the rational allocation and use of resources.
3.3 Cultivation of Engineering Thinking in Applied Chemistry
After the completion of engineering activities, its use value will be highlighted, and the use of artificial objects also needs engineering thinking to explore. As the last stage of engineering thinking, engineering application thinking also plays a very important role. As the product of special purpose, engineering project can be used for other purposes after realizing its special value.
In the stage of engineering use, in order to make it work normally, we must think about its maintenance, think about its maintenance work with the engineering use thinking of actual engineering wear consumption, and use corresponding methods to delay aging and wear, so as to achieve the purpose of maintenance.
4. Specific measures to guide the work by cultivating engineering thinking through applied chemistry.
2 1 century is a society with information explosion and rapid development of science and technology. As a practical discipline, applied chemistry, together with mathematics, physics and other disciplines, has become the foundation of the development of natural science. Engineering thinking is a kind of planning thinking, which has important guiding significance for people's activities. It is of great significance to cultivate engineering thinking and guide work through applied chemistry for current engineering activities. Therefore, it is necessary to continuously cultivate engineering thinking through applied chemical thinking, so as to better guide the construction of engineering activities.
4. 1 Learn relevant theoretical knowledge
Before cultivating engineering thinking, we should learn professional knowledge of applied chemistry, guide practice through relevant professional knowledge, and cultivate engineering thinking. For example, when studying physical chemistry, we can use thermodynamic theory and other related chemical theories to analyze the advantages and disadvantages of various energy sources. In the process of learning, we should also pay attention to cultivating engineering thinking, and use this planned and forward-looking thinking to guide related engineering activities.
4.2 Training engineering thinking in practical activities
After learning the relevant knowledge of applied chemistry, we can cultivate engineering thinking in specific practical activities, and then guide various engineering activities. Engineering thinking has a strong practicality. It can provide thinking support when human beings carry out various activities, ask questions in practice, and then use the relevant scientific and technological achievements of applied chemistry to transform the objective world and better carry out various engineering activities.
Concluding remarks
With the continuous development of human society, engineering activities not only gather the crystallization of human wisdom, but also record the development process of human innovative thinking. People's way of thinking will be open and systematic with the pace of the times, and will play an effective guiding role in practical work. Human thinking activities are carried out in a dynamic form, so we should keep pace with the times and learn to innovate in the process of guiding our work. With the pace of scientific and technological innovation, human thinking is also progressing in the process of engineering activities. Therefore, it is of great significance and function to cultivate engineering thinking and guide current work through applied chemistry.