1. Task implementation preview method
That is, teachers assign preview tasks, and students preview with clear preview tasks. Because students don't know where to start when they are beginners, teachers design preview tasks so that students can preview with tasks, which can be targeted and targeted. Teachers should first set high standards and be strict with themselves, carefully study relevant learning contents, and put forward preview tasks that are both valuable and attractive and can arouse students' strong interest in learning and exploration. When teachers assign tasks, they can take the form of tables or questions for students to preview. When arranging preview tasks, we should pay attention to moderate difficulty, inducement and interest, clear preview requirements and strong operability.
2. Note preview method
At the beginning, students can take simple notes in the book, and after reading the textbook, write down their own understanding, experience or original opinions in the blank of the book; Secondly, students can take notes, that is, after previewing, they can extract key concepts and sentences. Deepen your memory and understanding of important knowledge in the notebook, and simply write down the doubts and puzzles in the preview process, and also record your gains in the preview. At the beginning, the teacher should take some time out of class with his classmates to give detailed guidance on requirements, steps, methods and formats, and then let the students preview and take notes independently. For students with good foundation, they will also make reflective preview notes with high thinking content. In the research process, on the one hand, we should verify the applicability of these preview methods, on the other hand, we should seek other applicable scientific preview methods.
3. Review old knowledge and learn new preview methods.
This is a preview of the connection between old and new knowledge. In the process of preview, on the one hand, we get to know the new knowledge, summarize the key points of the new knowledge and find out the difficulties, on the other hand, we review, consolidate and cram the old knowledge associated with the new knowledge. When it is required to preview new content, it should be connected with the old knowledge that has been learned, so as to "review the old knowledge and learn the new", contact the old knowledge, learn the new knowledge, and make the knowledge systematic.
4. Try to practice preview.
For the new calculation teaching practice class, try to practice first when previewing, and then return to previewing examples when encountering difficulties, and then try to practice. By trying to practice, students' preview effect can be tested, which is an indispensable process of math preview. Mathematics is different from other disciplines, and it needs mathematical knowledge to solve problems. Students have initially understood and mastered new mathematics knowledge through their own efforts, so students should test their preview effect by doing exercises or solving simple problems.
5. Hands-on preview method
For highly operational knowledge such as formula derivation, students are required to practice by themselves in the preview process, and experience and feel new knowledge through activities such as cutting, spelling, folding, moving, swinging, drawing, measuring, observing and comparing. Because there is hands-on content in the class, it is natural to be familiar with the teaching materials, understand the tools and materials needed in the operation process, and make preparations before class. Only when students have experienced the process of forming mathematical knowledge can they know why.
6. Cooperation preview method
Students can learn from and communicate with each other. They can work in groups, adopt different preview methods from different angles, and combine their own emotional experiences to complete the preview task together. Cooperative preview cultivates students' spirit of unity and cooperation and improves students' ability to solve problems.