The concept and characteristics of practical teaching;
Practice teaching is a teaching form in which students gain knowledge and skills by directly participating in a series of activities closely related to the teaching content and observing the operation when the space environment, equipment and materials meet the conditions.
Practical teaching is an exploratory and comprehensive study with students as the main body and practical activities as the form, under the guidance of teachers, in order to gain some direct experience or solve specific practical problems.
Practice teaching is a teaching mode based on a solid theoretical foundation and centered on solving problems. It emphasizes the creation of real and comprehensive problem situations, so that students can understand the theoretical knowledge contained in the problem through cooperative discussion and operational practice, and form the thinking mode of integrating theory with practice and the ability of independent exploration.
Therefore, the main characteristics of practical teaching are student-centered, emphasizing the integration of theory with practice, creating practical opportunities for students, cultivating practical problem-solving ability and keeping teaching exploratory.
The basic process of practical teaching;
The basic process of practical teaching is generally divided into seven steps. Pre-class preparation is divided into two steps, that is, teachers analyze the teaching materials and learning situation, design appropriate teaching objectives and arrange corresponding preview tasks in combination with actual teaching characteristics.
There are four steps in classroom practice, namely, hands-on operation, perceptual experience-theme decomposition, questioning-practical exploration, feeling comprehension-evaluation summary and thinking construction.
After-class reflection 1 step, that is, teachers combine classroom observation and related homework to understand students' learning situation, deeply understand students with unsatisfactory knowledge, teach students in accordance with their aptitude, and at the same time reflect on their own teaching methods, find problems and improve teaching. This constitutes a complete teaching process of practical graphic understanding before, during and after class.
Practical experience:
Experiential inquiry should be interesting. In order to increase students' perceptual experience and improve their learning enthusiasm, the following aspects should be done specifically: combine the basic nature and characteristics of graphics with students' hands-on operation, so that students can experience graphic knowledge through the tangible operation process and deepen their understanding and mastery.
Understanding abstract concepts is a common problem for primary school students. Through hands-on experience, students can not only understand abstract theoretical concepts, but also cultivate hands-on verification ability.
The second is to use rich teaching methods, such as illustrated slides and rich auxiliary teaching AIDS, to explore related graphics in life. The purpose of perceptual experience is to accumulate mathematical knowledge through their own experience, so that students feel that mathematical problems are not difficult, but closely related to real life.
In the course of "Understanding Graphics", the author combines learning tools such as cuboid, cube, cylinder and triangular prism to let students experience the "face on the body" by touching, looking and drawing, and compares the differences between cuboid and drawn plane graphics, so as to preliminarily perceive the characteristics of plane graphics.