1. Lesson Overview and Network Information
1. Lesson Overview
“Lesson” is a place where a teacher can interact with students through device connection. Once the teacher has connected the students’ devices to the lesson, the teacher’s page can be synchronized with the students’ page to view their answers and statistics, give them feedback, etc
The system allows the following four platforms to be connected to each other: iPad, Android, Windows and Mac*. For example, a teacher can use the Windows version while the students can use the iPad version for lesson interaction
*iPad&Android versions are executed through the App, while Windows and Mac are executed in a desktop manner instead of a browser
2. Network Requirements
Before connecting to the lesson, make sure that all devices in the classroom can be connected to the internet simultaneously. The following settings can affect the quality of the connection. The teacher is advised to test the internet connection first before starting the lesson and should consult the professional network provider for the following matters:
- The number of devices that can be connected by each AP (Access Point)
- The access range of AP signals
- Whether or not the school’s main wall will shield the signal
- Whether or not the presence of sources near the school or classroom will interfere with the school’s wireless network
- Whether or not anyone in the school is using considerable web resources, such as downloading large files or videos
- Whether or not there are a lot of people in the school simultaneously going online
- Whether or not network congestion occurs during a certain period (some schools often have such a problem during certain periods)
- When conducting real-time class interaction, all users in a school tend to use a specific port (80 or 7777). Without any specific requirements, port 80 is generally being used by schools at present. Please note whether or not the school’s firewall is permitted to use this port
- Some schools have rental network, the supplier is responsible for controlling and managing the network. Some suppliers may filter the school’s network (content filtering), which may may slowdown or even stop the class services. Please contact your network provider if necessary.
3. Network Test
On the login screen, main page and classroom toolbar (to be released in the future), you can click the network button to start the network test. 
- After opening, testing will automatically start.
- The system is divided into three servers, each of which has its own functions.
- The lower the value, it has a better network performance. In general, each value should be under 100.
- If “Connection Failure” appears for any of the items, please use the off-campus network to open RainbowOne for the above test, such as to connect with your mobile phone. If the phone can be successfully connected, then the problem is probably related to the internet network system instead of the server of RainbowOne.
- Please connect us if necessary.
4. Data Transmission Capacity
E-book data transmission is divided into two parts: the capacity of the e-book itself and the transmission amount of students’ answering information.
The capacity of the e-book itself depends on the multimedia capacity of the book, such as the size of photos, the length of recordings, etc. Although RainbowOne functions like a normal webpage and can get instant access to the content even in the absence of such e-book in the students’ devices, we recommend that students download the e-book onto their Bookshelf before the class begins to reduce flow volume caused by a need to transmit the media in an e-book.
When connecting to the lesson, the students’ e-book answers will be transmitted to the RainbowOne server. Depending on the e-book title and the number of students in each lesson, the amount of data transmitted per lesson will vary greatly. The following are some references:
- General answers for questions: Less than 10KB per questions;
- The system will compress pictures taken by students. It is estimated that each picture is less than 100KB
- Sound: A 10-second recording is about 80KB
- Video: A 10-second 480x360-pixel video is about 1MB
- Video: A 10-second 1920x1080-pixel video is about 15MB
When producing e-books, the teacher should consider the network capacity and set the length of a sound or video recording appropriately.