在线多媒体教学利器-bigbluebutton – The online multi-media teaching system

最近以来,有越来越多的学生找上门来学习英语,这点让热爱教学的我甚是高兴,可转念想想外出给学生上课时的种种旅途奔波,堵车,粉尘和涨了价的出租车,又让我望而却步,相信科技能改变教学的我,又开始了新一轮的探索,最后让我发现了免费实现多媒体远程教学的利器-bigbluebutton.同之前推荐的软件一样,这也是一枚开源代码,可以安在ubuntu 10.04服务器上。

Recently,there are a number of students approaching for tutoring of the English language. Given that I like teaching,whenever to think of the bad traffic,tough journey,and unpleasant air quality,I have to surrender.I,who firmly believe the magic of technology,launched another round of exploration. And Bigbluebutton came to my mind. An opensource multimedia online conferencing script to be installed on linux server for free.

我们先来看看它的主界面:

Let’s take a look at the UI:

bigbluebutton主界面
bigbluebutton主界面

经典的三栏设计:从左到右依次是控制栏,演示栏和聊天栏。

Classical Three columns style: namely controlling,presentation,and chatting.

控制栏可以起到控制教室和点取学生发言的功能,控制栏的最底下,可以播放教师,或者被教师选中的听课学生的视频图像。演示栏内可以播放各种文件,包括常用的PPT,PDF,DOC甚至是视频音频等文件。在这里播放的文件可以由教师控制,并且向全部学员广播。第三栏是聊天栏,可以进行点名,签到,和解疑答惑等实时沟通。

The controlling center at the left columns enables the teacher to choose specific student’s input to be broadcasted to the rest,at the bottom of which is a video layout. Teachers could decide to broadcast any specific webcam of a student.The second column is used to broadcast files like PPT,PDF as well as audio and videos, under the teacher’s control. The very right column is for chatting and taking attendence.

Bigbluebutton具备了在线授课所需要的所有功能,并且开发者还不断地在开发新的版本来支持更多的功能。目前Bigbluebutton可以和moodle融合的非常好。也就是说,在moodle教学管理系统注册的所有学员,都可以直接参与bigbluebutton在线课堂而不需要再次注册。

Bigbluebutton provides all the fuctions to facilitate online teaching, and its developers are commiting to add more features in the future releases.Bigbluebutton integrates perfectly with Moodle,that is to say moodle users are able to join the online classroom directly from their regiestered courses.

moodleinteration

moodleintegration

 

教师可以控制是否让学生单独启动在线课堂,如果学生不被允许自行启动,他们将会得到等待教师加入的提示。

Teachers are able to decided whether students are able to initiate an onlinte classroom, if they are not, they will be notified to wait for the teachers to join in.

总结起来,今后我将会尽量的将我的学生都转换成在线授课模式,这样老师省去的路途劳顿,并且学生也可以借助服务器的快照再次复习老师的授课内容。

All in all, from now on, I will be transfering my students to this online teaching mood, so as to save time. The students would also be able to review the courses from the snapshops on the server.

如有任何同事也对此感兴趣,欢迎一起交流bigbluebutton的一些使用心得。为防止垃圾邮件,请根据下面的提示找到正确的邮件地址。

Any teachers who are interested,are more than welcome to share with me your bigbluebutton stories. To avoid spam, please kindly workout the email address by yourself.

E MAIL: admin%damienglish*.com

 

思考你的英语学习

Reflect on your English study.

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开设Damienglish.com网站的时间不知不觉也有半年了,从建立网站遇到的种种困难,到想法设法寻找到连接速度更快的服务器,花费了大把的时间和精力,过程中也遇到了好些质量和服务都非常好的主机商,之前也都一一推荐过了。今天再推荐一款美国VirtualHost公司提供的香港主机(香港VPS)。原因很简单,绝对给力的网络连接速度,和中国大陆内超低的网络延时。直接上图吧。

I have been running damienglish.com for almost half a year,overcomed various difficulties. In order to increase the performance as well as connections of the VPS, I spent a lot time searching for VPS with good quality. Luckily, I have come across a few as discussed here before. Today, there is a good chance for you to graspe the asian hongkong based VPS that gives you fastest connection and lowest latency to mainland China ever.

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延时这么低,网速这么快,那么价格怎么样呢?

With wonderful lantency of network, here are the price and packages.

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跟linode的价格相当,但是注意,如果选择把VPS建在香港,那么价格虽然不变,但是每月的流量是同级别美国流量的十分之一,20美元套餐包含了200G流量。可能有朋友觉得少,但是对于我来说,用作教学目的,其实已经绰绰有余了。之前2000G流量的套餐,每月都只使用了几十G。不过,他们的CEO,已经提到了将来会提高流量限制。

Prices are similar to linode.com,but bear in mind that if you choose to locate your VPS in Hongkong,the prices are the same,however, the traffic allowance is 10 % of what is offered in the US based packages.To me, 200G of monthly traffic is fairly enough for my educational purposes. I have merely used my pervious US 2000G traffic.The CEO of Virtual Host, implied an increase of monthly traffic in the future.

他们的工单回复速度也是一流的,基本在十分钟之内,但是可以使用后发现,服务器非常稳定,并且可以选择的系统发行版非常多。

Their tickets response are very fast, normally within ten minutes,and their server is very stable with a large number of OS choices.

不得不提到的是他们功能超级强大的管理后台,几乎可以实现你对VPS主机的所有控制!

What has to be mentioned is their outstanding mangement protal,you can almost do everything within the portal.

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最后,心动不如行动哦:他们的香港服务器数量有限,官网可能一直显示无货。如果暂时没货记得联系他们的客服,在到货时会第一时间通知你。点击下面图片到达官网。

Lastly,if you are interested, click on the following picture to reach the official website of Virtual Host. They always marked their HK location as limited stocks or out of stocks, remember to contact their sales, once they have more stocks.