1. Problems encountered in webcast teaching
Under this special circumstance, the outside world is very harsh, and the school has changed from a real classroom to an online classroom. Recently, my friend who is a teacher often complains: In the past, they wrote on the blackboard and faced the students, but now there is a lot of inconvenience and unaccustomedness for them to teach facing the computer. For example, there are a lot of teaching materials, textbooks, and sample questions on test papers that need to be shown to students. But it is inconvenient to hold it with the hand, and it becomes unstable after a long time, making it difficult for students to see.
2. Scanner is a good helper for webcast teaching
Think about it, all kinds of test papers have to be explained in textbooks. In order to solve problems for them, they can use a scanner. The scanner is directly connected to the computer, displaying high-definition display of various test papers, textbooks, sample questions, etc. There will be no need to hold the materials separately, or worry about that the image clarity.
The scanner can realize high-definition scanning, and fast image acquisition. It is convenient to use, and it meets the customers’ needs of high pixels and high resolution. The scanner is light and portable, even if it is placed on the desk, it will not occupy too much space. The main camera is mainly used for the shooting of documents and three-dimensional objects. With built-in LED fill light and a circular layout, the fill light range is wider and more uniform, and the brightness is adjustable in multiple levels.
The scanner can be directly connected to the computer without a separate power cord. It saves desktop space. The high-definition picture and automatic zoom make the captured test paper data clearer, allowing students to see at a glance, allowing teachers to free up their hands to solve problems, analyze, and draw pictures. And it has the functions of real-time rotation, image merging, timing pictures, automatic continuous shooting, etc.