Keywords junior high school chemistry learning methods
Chemistry is a brand-new course in junior high school. This is a natural science based on experiments. "Chemistry Curriculum Standard for Junior High School" points out that in chemistry teaching, students can gradually learn to understand the relationship between nature and environment and analyze related social phenomena by helping them understand the influence of chemical products on human health, know how to use chemical knowledge and methods to manage the environment, and rationally develop and utilize chemical resources.
Chemistry involves a large number of drugs and instruments, and the experimental phenomena are intuitive and interesting. There are many symbols and equations. Various chemical elements, compounds, chemical reactions, etc. It can be expressed by chemical symbols or equations. There are many concepts and terms. Closely related to daily life. Chemical products are everywhere in people's lives, and people's daily life is related to chemistry. Make full use of the characteristics of chemistry as new knowledge, mobilize students' learning enthusiasm, and fundamentally change the view that chemistry learning is difficult.
2. Face up to the preview before class. Preview before class is a good learning method. The methods of preview are: (1) Read through the text. Understand the basic content and key points of the new lesson by reading the text; (2) Remove obstacles. After reading the text, contact the basic knowledge related to it that has been learned, bring the old with the new, and learn the new by reviewing the old; (3) Determine the key points, difficulties and doubts. Think about the exercises after the text, try to answer, and find out the key points, difficulties and doubts of the new lesson in the process. If you have the potential, you can also take some preview notes. It can strengthen the pertinence of lectures, improve the level of taking lecture notes, save time for reviewing and doing homework after class, and cultivate self-study ability.
3. Listen carefully. It is the key to learn well to classify and query periodical articles, focusing on the students in the periodical library to listen to each class well. Classroom teaching is a two-way activity of teaching and learning. Students are the main body and teachers play a leading role. Students should actively participate in classroom teaching. In class, we must eliminate all distractions and distractions, think positively, observe carefully, speak enthusiastically, remember in time, seize the time given by the teacher in class, do a good job in class exercises, and try our best to digest and remember what we have learned in class.
4. Take more notes. Learn to take notes and form a good habit of taking notes. . Taking notes can not only concentrate and improve the efficiency of class, but also help you review after class. Taking notes means listening to a class while reading a book, marking the key points that the teacher said, copying down the outline and key points that the teacher wrote on the blackboard while speaking, and then reviewing and thinking after class.
5. Observe more and observe frequently. Chemistry is an experimental subject, and there are many demonstration experiments in the textbook. It is the basis of learning chemistry well for students to do experiments independently and have a good experiment class. Make clear the purpose of observation, pay attention to the phenomenon of the experiment, the teacher's operation steps, cherish every opportunity to do the experiment, do it yourself, don't be a bystander, think carefully and record it accurately and truthfully.
6. Review after class. Review can deepen understanding and consolidate knowledge. Review the content of the textbook from the beginning, and consult the teacher in time for the difficulties in the review. It is difficult to master the knowledge comprehensively only by the teacher's classroom explanation. In the review, we should also combine the old knowledge to review the old and learn the new.
7. Practice after class. There are some exercises at the end of each chapter. Doing this sub-topic well will help to verify whether this part of the content is really mastered. After-class contact is often targeted, so you can do more exercises and expand your thinking in combination with other review materials. As the saying goes, "Who makes who is perfect".
8. Extracurricular study. It is far from enough to rely solely on the knowledge of textbooks. We can take part in extracurricular chemistry experiments, read chemistry books and consult chemistry knowledge with the help of network technology. This can not only enhance students' interest in learning, but also show their initiative in learning.
9. Combine life. Chemical knowledge has penetrated into every aspect of life. As long as you pay attention to observation, you can find many root chemistry-related events around you. Steel rust, gas combustion, cement hardening and so on. Combining life can not only explain some chemical phenomena, but also solve small problems in life with chemical knowledge.