The Ministry of Education promulgated the "Science Curriculum Standards for Compulsory Education Primary Schools", which requires a full understanding of the importance of science education in primary schools, adjusts the starting grade of primary school science courses to the first grade, and requires all localities to guide teachers to attach importance to experimental teaching, promote students' active participation and initiative, and cultivate students' innovative spirit and practical ability.
Under the new curriculum standard, the implementation of science in primary schools will face how to better enable students to understand the world around them, understand abstract concepts, and understand the connections between various phenomena. How to explain and implement some phenomena that change too quickly or too slowly, and how to explain and implement phenomena that are too macro and difficult to understand or too micro to understand;How to use the surrounding environment to implement first-class teaching will also be a challenge for the implementation of science in primary schools. VR virtual ** is applied to teaching with its unique advantages, which can effectively solve many of the above teaching problems.
1) Three-dimensional image display of abstract knowledge points.
The primary science curriculum consists of 18 topics in four major areas, many of which are abstract and difficult to understand. For example, when it comes to how each part of plants in life science helps plants maintain their own survival functions, and when it comes to leaf respiration and photosynthesis, these phenomena are difficult to observe with the naked eye. If you use VR teaching resources, it's not the same at all. Through the ** "Leaves of Plants", the composition of the leaves of plants is analyzed one by one, and the three-dimensional images of the veins, breathing ports, oxygen and carbon dioxide exchange processes of the leaves that are difficult to observe with the naked eye are displayed, which not only improves the attention of students, but also greatly improves the knowledge mastery of students.
In addition to the above-mentioned functions of plants to maintain their own survival, there are many abstract knowledge points that can be explained through VR teaching. For example, understanding the food chain, the stratification of the atmosphere, electrical energy, etc.
2) Simulating real-world scenarios to show too macro or micro phenomena.
One of the major areas in the primary science curriculum is the field of earth and space science, and the content in it is too macroscopic to be realistically observed. For example, it explains the relationship between the earth, the moon and the sun, and how to understand the rotation of the earth and the climate change it brings to the earth. In traditional teaching, it is usually explained in the form of a globe, a drawing or a part of 2D**. Through the display and interaction of VR teaching resources such as "Planets in the Solar System", "Day and Night", "Sun in the Sky", "Moon" and other resources, students can be placed in space and have an interstellar journey.
For example, in the field of life sciences, students should understand that "the human body is composed of multiple systems, and the division of labor and cooperation to jointly maintain life activities", students should fully understand the constituent system of the human body and its operating mechanism. When explaining the basic parts of the human body, such as the hands, feet, body, head, etc., they can be perceived and observed, and it is easy for students to understand. However, when it comes to the blood circulation system and nervous system of the human body, it is difficult for students to understand it because it is too microscopic to observe its operation. Through the demonstration and interaction of VR teaching resources "Heart - A Miracle Pump", "Respiratory and Circulatory System", and "Nervous System", students saw how each part of the heart is made up and how blood circulates from the right atrium through the tricuspid valve into the right ventricle and then into the pulmonary artery. This three-dimensional image and step-by-step explanation of the operation mechanism can not only attract students' interest, but also allow students to quickly grasp the knowledge they have learned.
3) Recreate the moment of electric light or the change scene that is too slow.
In the field of elementary science and material science, students learn about light energy, electrical energy, sound energy, and other related knowledge. Because the propagation speed of light and electricity is very fast, it is difficult for the naked eye to observe and record, and the propagation of sound is too abstract and unobservable, if it is only explained from words and **, it will take more time for students to understand and master. Through the demonstration and interaction of VR teaching resources such as "Light and Shadow", "Electricity Everywhere", and "Transmission of Sound", the scenes that occur quickly are reproduced in slow motion for students to understand. At the same time, electricity, light, sound, etc. are used to represent the transmission channels with visible lines, so that students will have a more thorough understanding of these knowledge points. There are also some phenomena that need to be observed for a long time, and through the regular demonstration of VR resources, you can not only observe the development of things, but also save time. For example, "The Growth of Plants", "The Life Cycle of Animals" and so on.
4) *Image, multi-form, fun interaction, encourage students**.
*-based learning is the main form of primary school science curriculum implementation, and schools should make comprehensive use of various resources to create a first-class learning environment. VR teaching resources include interactive and practice evaluation links, through lively and cute images, guide students to interact in colorful scenes, and quickly attract students' attention. Since virtual ** allows for multiple attempts, there is a very large tolerance of trial and error, giving students more opportunities to practice**. Through VR teaching, the primary school science curriculum can be more vivid, students more interactive, and teachers more excited.
VR virtual teaching is not only suitable for the implementation of science courses in primary schools, but also for the classroom implementation of biology, physics, chemistry and other subjects in junior high and high schools.