VR, AR and MR technologies are often referred to as virtual reality, augmented reality and mixed reality in China. The application of several technologies in education has been well known. VR virtual reality is currently used in education. A more common form. As with most things, the biggest obstacle to the full adoption of these technologies in the education sector is cost. Although mobile VR products such as Google Cardboard and Samsung Gear VR are good choices to replace a full set of VR devices, the VR applications currently on the market are still quite limited. In the long run, AR is more likely to provide schools with relatively cost-effective solutions that can be used in conjunction with related applications to bring content to life in the classroom. VR application in education Many people now know that the benefits of VR in education are obvious: there will be more students involved, learning faster and higher quality education. There is also propaganda that VR can reduce the number of classroom disturbances in students with behavioral problems. For example, a VR history class can bring students to ancient Egypt, to understand how people live and learn the civilization of early Egypt. But in fact, the primary and secondary school classrooms are only a small part of the entire education sector that benefits from VR technology. It can also bring many benefits to higher education. For example, students at the University School of Medicine can learn about the details of surgery through VR and get inside the body to fully understand the operation of the organs and simulate all real medical conditions. At the Bett show this year, Leicester University's teaching designer, Terese Bird, introduced the importance of emerging technologies in the field of medical teaching. She cites examples of how VR videos about surgery help medical students understand how the body works and the various measures taken during surgery. In addition, courses that require technical drawings, such as architectural design, can benefit a lot from VR. Architecture students can see in real time whether their design is feasible, where they need to be changed, and what the program will look like in real life. However, the biggest drawback of VR is price and popularity. Some universities and schools may not want to invest large sums of money in such emerging technologies, and others cannot afford the cost. If the retail price of a VR device is too high, it is difficult to say that the decision to equip such a device in one or more departments of the university, or in multiple subjects of the school, is reasonable. Another disadvantage is the content, especially those related to VR hardware. Although you have a lot of VR videos on Youtube, as well as many iOS and Android apps. But most of them are of low quality and are not designed specifically for education. But now, there are also many companies that provide both hardware and educational content to schools. It is these companies that have the greatest potential to promote VR in schools. Colin Bethell, director of classroom VR Enterprise Veative, said at the Bett show that the most complicated aspect of VR is the content itself. Veative chose to build content from scratch within the company, including hiring subject experts to participate in the visualization process and then turning the programmer into content. But the problem remains the same, although similar "package contracts" will be attractive to some principals because of their convenience and customization, the price of such products may still be unaffordable for most schools. At present, the most realistic or achievable form of VR seems to be the cardboard hood. Most of today's middle school students have smartphones, and products like Google Cardboard sell for only about £5, which is far cheaper than other products. AR application in education The school's curriculum usually revolves around a textbook, and AR can make its pictures "pop up" to create an interactive classroom. Many schools in the UK currently offer tablets to students, so students can put these tablets on the picture of the textbook to let it play AR videos. For example, in biology class, students can put the device on a picture of the textbook while learning about the human circulatory system, see details such as the heartbeat and how the blood flows throughout the body. This will help students focus and increase their enthusiasm for learning. From a practical point of view, the threshold for AR is lower for many schools. It is also easier to apply this technology in classroom teaching. As long as the resources such as textbooks and applications are set up, the budget for promoting this technology throughout the school is actually very cheap. So for schools that don't want to buy a full VR hood and a matching computer, AR might be a better choice. In addition, AR is not only limited to classroom teaching, it also has the potential to be used in class travel and home learning, which VR can not provide. For example, a teacher can provide a piece of work paper with a "marker" on it to allow students to trigger on their own mobile phone. As mentioned above, in terms of cost, once AR resources are set up and applications and content are created, implementing AR can be a fairly inexpensive solution for students with smartphones or schools offering tablets. Schools can also get different AR applications based on syllabus by choosing to subscribe to the AR package – in theory, the benefits for teaching are enormous. The only question is, when will this happen? How is MR applied in education? MR simply means mixing real life and virtual world, sometimes as being between VR and AR, or as enhanced virtual (AV). For example, Microsoft's HoloLens provides enterprise-class MR, and Microsoft claims that HoloLens is "the first fully equipped holographic computer device." Roger Walkden, senior director of Microsoft HoloLens, said that there is now a lot of interest in how to learn through 3D. “The traditional way of learning is through books, which is obviously a 2D method, and not necessarily a method that everyone likes.†“HoloLens is a way for people to have the opportunity to see real things and give them life in the classroom. This is a very effective way to make people really feel something, or understand real things.†Like AR, MR can also be used to train medical staff, construction workers, and even town planners. This is because the MR project is a virtual image or video that appears in a realistic scene, so it is suitable for college students to study subjects that require additional detail and technical accuracy. A typical example is that municipal engineers need to find pressure points and weaknesses in bridge design, and researchers who learn brain functions need to understand what happens if the brain is under tremendous stress. But MR also has a lot of shortcomings. Since most projects are business-led, there are relatively few opportunities for primary and secondary schools to access this technology, and it takes a lot of time to implement and create MR applications. Although these schools can also work with Microsoft to create educational applications, the cost of this can be far more than the average school can afford. It is worth noting that in 2016, Microsoft and education giant Pearson formed a partnership to create educational applications and MR learning tools for HoloLens. It is reported that these tools will be used in many aspects, including nursing, construction, etc., and will cooperate with colleges, universities and secondary schools in the United States. If the project is successful, then Microsoft can provide similar educational services in future UK schools. All in all, from the point of view of price and settings, the most easy to purchase is mobile VR equipment, but its “experience†is very limited – not only is the application in the market limited, but the level of interaction that students can achieve is limited. And AR and MR may be the next attempt of the first school to test the water. Concealer that is too light or too dense will make your makeup look unnatural. Therefore, you should choose different concealer according to your skin type to make your skin appear healthy. Paste and strip concealer have better covering effect, but the operation is more difficult; The concealer with low concealing ability can make the makeup natural because of its fresh texture. Generally, concealer is solid, but its viscosity is different. According to your own needs, you can choose to use large areas or local products. 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