HANGZHOU, China /January 11, 2017 For the last couple of years China has been bothered for noxious smog. Particulate matter with diameter equal to or smaller than 2.5 micron (PM2.5) is the major threat to human health, because it reaches directly to alveoli of the lungs, and cause all kinds of serious problems such as respiratory disease, vascular disease and blood system disease.
A hilarious but heartbreaking picture of a couple dancing in heavy smog with masks on the face.
In some seriously polluted area, AQI reached to over 1000 at times. Adults’ eyes feel uncomfortable when they’re out in the air, let alone children. In cities like Beijing, Shijiazhuang and Zhengzhou, schools are cancelling classes during times of dense smog. Typically, teachers would assign loads of homework for those who can’t attend school because of air pollution, and maybe a test first day back to school, but the result is unsatisfying.
Map of Air Pollution in China
In order to keep up with the teaching schedule and maintain good effectiveness, nowadays, many teachers and students are turning to live video streaming for help.
But, is live video streaming really effective?
Here’re some concerns.
First and foremost, when teachers are giving a lesson online, how can they tell whether their students are there, watching them? It is hard for teachers to manage this using common live video streaming platform.
Besides, online teaching is quite different from other kinds of online activities. It requires relatively professional personnel and environment. Currently, live video streaming doesn’t support tools and functions such as white board and Q&A, which teachers often use to interact with students. Thus online teaching through live video streaming is not vivid enough.
Interaction is the key to Online Teaching.
Dahua interactive live video streaming is based upon the technical advantages of leading teaching recording and video conference system. It is a brand new interactive recording video system to perfectly solve problems of live video streaming, and provides teachers with a professional and easy-to-use teaching platform, and offers to students a true and comfortable learning environment.
Reasons why schools adopt Dahua Interactive Recording Video System
Strong Environment Adaptability. While Teachers are giving lessons at recording video classroom, they can interact with students in other sub-classrooms during times of break. Teachers and students can access to the systems through cell phone, PC and so on, almost not affected by the environment.
Real-time teaching quality examination. After students’ entrance into the interactive classroom, teachers can see students’ behavior though camera in students’ equipment. When a live video class is over, students and teachers can comment on the class or “like” the class.
Vivid ways of interaction. Teachers can interact with students, such as ask questions to some specific students, Q&A and so on. Students can communicate with their teachers through audio and typing text, enjoying true classroom environment.
Convenient resource storage. The resource interactive platform can automatically record and save teachers’ class, and will generate a list to rank the online class videos.
Quick schedule arrangement. Teachers can set a schedule in the platform, and the platform will automatically start a live video class and call students to attend it. The totally automatic procedure enables students to enjoy education of better-quality, and teachers to teach more conveniently.
