The case of Hewlett-Packard Multimedia Network Classroom in the Second High School Attached to Normal University

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Network classrooms are used most frequently in the school's daily teaching, so how to ensure its stability and easy maintenance has become the focus of the school's concern. In April 2001, China Hewlett-Packard Co., Ltd. and Beijing Huidian Technology Development Co., Ltd. cooperated with the Second Affiliated High School of Beijing Normal University to jointly establish the HP Huidian Network Classroom (iSchool) in the Second Affiliated High School of Beijing Normal University. The Second High School Attached to Beijing Normal University believes that in the design of network classrooms, only by improving the performance of hardware and software can the maximum efficiency of network classrooms be fully utilized. Therefore, the design of network classrooms should pay attention to the following two principles:

● Adopt advanced technology

The construction of network classrooms should adopt the current advanced software and hardware technology, and adopt stable and reliable software and hardware products, so as to truly achieve "good horses with good saddles, good roads and good cars".

● Consider the matching of hardware and software

Software and hardware are the two main points of the network classroom, and only the perfect combination of the two can achieve the best results. The software must use mature and stable products, otherwise the software will greatly reduce the performance of the hardware, resulting in the failure of the construction of network classrooms.

Both hard and soft architecture

● Build a good network environment

● Multimedia teaching software using pure software

iSchool Multimedia Network Classroom adopts a new compression algorithm and efficient core technology, uses the latest computer network technology and multimedia technology, and constructs a multimedia network classroom with pure software. It breaks through the technical obstacles and cost limitations of early network teaching software in practical applications, and proposes an independent A pure software solution for the new multimedia network classroom on the network system platform. This model can not only realize all the functions of traditional online classrooms, but also completely solve a series of problems in the past, such as high construction costs, long construction cycles, and difficult maintenance and use. The total cost of ownership is low, the teaching mode is new, and the interface is intuitive Friendly, flexible and easy to use, and can be upgraded at will, easy to maintain.

Rich and practical system functions

Broadcast teaching: Multimedia information such as the computer screen and voice of the teacher's computer can be broadcast to all students, groups or individual students in real time.

Electronic pointer function: Teachers can annotate and explain any application software to achieve the purpose of assisting teaching and strengthening student learning. The electronic pointer also provides a storage function. Teachers can store all the pictures explained, output independent multimedia products through courseware making tools, and call the products at any time.

Screen monitoring: Teachers can monitor each student ’s computer screen in real time to observe the student ’s learning situation, and can conduct multi-screen (up to 16) and single cycle monitoring for single, group or all students.

Remote tutoring: Teachers can remotely take over the selected student machine, control the keyboard and mouse of the student machine, and conduct "hand-to-hand" interactive tutoring teaching. Teachers can conduct two-way conversations with remotely controlled students in remote control teaching.

Teaching demonstration: Teachers can use the relay teaching function during screen monitoring and remote control guidance. Teachers can select a student machine as a demonstration, and students can replace the teacher for demonstration teaching. The screen and sound of the student machine can be relayed to other students. Students' sense of participation in teaching improves their enthusiasm for learning.

Electronic Forum: Teachers can choose one or more students to discuss in groups and communicate through text, voice, and electronic whiteboards. Students who are not in the discussion group are not disturbed.

In addition, iSchool Multimedia Network Classroom also has electronic answering, message sending, electronic hand raising, remote command, local command, file transfer, network theater, remote control, electronic black screen, remote management, courseware production, voice teaching and other functions.

Simple and considerate system features

Fast screen broadcasting: Using dynamic image capture and digital shunt broadcasting technology to ensure that images and voice can reach each student quickly at the same time.

Multi-channel teaching: In a network environment, multiple teachers can be taught at the same time, and students can receive any channel of teaching content under the control of teachers.

Automatic login: the student computer will automatically log in to the designated teacher machine after booting up, and the teacher can control the student's login or logout.

System state maintenance: When the teacher computer is teaching, the student computer will automatically enter the teacher's current teaching state at any time when it restarts.

Multi-party talk mode: The use of multiple broadcast and audio mixing technology, even if multiple people on the Internet speak at the same time, you can clearly hear everyone's voice, just like a real classroom discussion.

Virtual network classroom: Teachers and students can set up virtual network classrooms at any time and in any local area network. Teachers and students do not need to be in the same classroom.

Cross-segment support: Through the multi-segment routing software package, the system can smoothly teach through multiple network segments, especially suitable for multi-segment diskless workstations.

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