Report on How to Maximize the Effectiveness of Classroom Teaching

The creation of a "problem situation" can enhance the relevance of learning, and is conducive to playing the role of emotion in teaching, stimulating students' interest and making learning more effective. The learning process of students is a continuous process of discovering problems, analyzing problems, solving problems and understanding higher level problems. The "problem" for the learning process, has a crucial role in guiding. In the creation of the "problem situation", should strive to real, vivid, intuitive and rich in enlightenment. The creation of the problem situation, must be based on the students' existing knowledge and experience and the content of the materials of a comprehensive, scientific analysis. Generally speaking, those who can establish a wide range of links, strong migration, high activation rate of knowledge, those in the discovery and development of knowledge embodied in the process of scientific thinking, methodology, learning strategies and analysis of problem-solving ideas, as well as those in the production, life in practice with a wide range of applications of knowledge, the development of students' abilities and emotional development has a high value. In the teaching of these contents can be designed for these experiments, models, charts, exercises, text materials, etc., to create a situation, so that students in the original knowledge, the need to master the new knowledge of the cognitive conflict between the occurrence of a strong, so as to stimulate the motivation of students to think positively and the desire to explore the problem. For example, in the "elements" in the teaching of O2, H2O, CO2 chemical formula, so that students look for **** the same point; in the "law of conservation of mass" lesson can be used as a starting point for the candle combustion weighing experiments and driving questions for discussion; in the "study of the production of carbon dioxide", "the study of the production of carbon dioxide", "the study of the production of carbon dioxide", "the study of the production of carbon dioxide" and so on. "Carbon dioxide production research" a lesson with a bottle of carbonated beverages dissolved in a large number of carbon dioxide introduced. Teachers can also set up learning scenarios through carefully designed thoughtful and inspiring questions, such as "why can you cook an egg by adding water to the new system of calcium oxide" and so on.