3.3.2教师和学生的收益 在线视频

所以学生环境也都发生了改变
So students have changed too.

在当前这个形势下
In the current situation,

我们采用混合式教学
blended teaching may bring us

就可能有哪些收益呢
the following benefits.

比如说我觉得至少这四点
I believe there are at least four benefits in total.

首先 如果说你利用了雨课堂
Firstly, if you use tools like the Rain Classroom

来实施混合式教学的话
to implement blended teaching,

你能够知道
you can discover

每一个学生的预习复习情况
how each student completes the preview and review tasks.

除此之外
Secondly,

你也可以在课堂上开启弹幕
you can open up a bullet screen in class

让学生发送自己的学习体会
so that students can send their learning experiences,

而且你能够知道每个弹幕是谁发的
and also, you can see who sendst them.

第三
Thirdly,

学生听PPT他如果没听懂的话
There may be students who don't understand the content in your slides.

你可以知道
In this case you can see

每页中有多少个学生点了不懂
how many students have clicked "Didn't Understand" on each slide.

帮助你有针对性的改善你的课堂教学
This will help you improve your classroom teaching and make it more targeted.

第四
Fourthly,

你在课堂上也可以让学生做练习
you can let students do some

实时的练习
real-time exercises in class

你能够知道每个学生
and understand each student's

对每个练习题的完成情况
situation in completing the exercises.

我们每一个都举一个例子
Let me give you an example for each of the above benefits.

比如说这就是我
To begin with, here is an after-class assignment

在2017年2月20号上完课以后
I gave the students after

给学生布置的一个课外学习任务
I finished a class on February 20, 2017.

我总共布置了五页PPT
I asked them to learn the content in five slides

其中包括有文字有录像有公式
which contain words, videos, formulas,

还可能有练习题等等
and exercises, etc.

那我要求他们在2月23号之前
I asked them to preview all the content

来完成预习
before February 23.

那你就会发现屏幕上给出了
As shown on the screen,

不同的学生
different students

他在限定时间内
had previewed

看的PPT的页数是不一样的
different numbers of slides

看了不同的页
within the required time.

而且非常重要的是
What’s important,

我作为老师能够知道
as their teacher, I could see

他们投入多长时间进行了课前预习
how much time they’d spent on the preview task before class

而且我还能知道
and when they

他们完成预习的时间各是什么
finished the task.

所以你就会发现
Lastly, I found that

不同的学生对于相同的预习布置任务
different students had spent totally different amounts of time

他们投入的时间是完全不一样的
on the same preview task.

这件事儿以往我们是不知道的
So we can find out accurately what

现在我们能比较准确地知道
we didn't know previously.

这带来什么好处呢
How can we benefit from this?

一方面我可以结合这些数据
Based on this data, we can

实时的改进我的课堂PPT
improve the content in the slides in real time.

更重要的是我在第一周的课里说到了
What's more important, as I mentioned in the first week,

我们可以做数据挖掘
is that we can master students' learning conditions

我们可以了解学生的学习画像
through data mining.

这一点我们就不展开说了
As for this point, we won't go into details here.

这是课外预习
This is the benefit blended teaching can bring to lesson preparation.

除此之外呢我刚才说到了弹幕
Secondly, I previously mentioned the use of a bullet screen.

那我在授课过程中
During my lectures,

每一节课都会精心地给学生准备
I will elaborately prepare one or two reflection questions

1到2个思考题
for students.

传统意义上来讲
In the traditional teaching method,

这种思考题在清华授课的时候
if there were any students who volunteered to answer questions

能有一个学生勇于回答就很不错了
during my lectures at Tsinghua University,

我作为老师就很欣慰了
I would be rather delighted as the lecturer.

但是自从我采用混合式教学
However, after I adopted the blended teaching method,

采用雨课堂工具以来
and used tools like the Rain Classroom,

屏幕上给出了我同一堂课
I gave two reflection questions on the screen

分别在八点多和九点多
around 8:00 and 9:00 a.m.,

推出了两个思考题
and set up a bullet screen twice

开启了两次弹幕以后
during the same class.

不同学生给的反馈情况
During In this case I found that different students gave me different feedback.

你就可以看到
As we can see,

对于这样比较费劲比较复杂的思考题
though the students might give wrong answers to

完全有可能说错
such complicated reflection questions,

但是学生在课堂内
they still actively answered the questions in class

匿名的弹幕反馈机制下
via the anonymous feedback mechanism of

非常踊跃地来回答问题
the bullet screen.

所以能够让我真实的准确的了解
In the end, I was able to know exactly

学生的所学所得
what the students had learned and obtained.

第三 我上完课以后
Thirdly, we can also benefit from blended teaching after class.

当然每个老师
As every teacher knows,

运用雨课堂工具上完课以后
after we give a lecture using tools like the Rain Classroom,

就能收到屏幕上给出的这些教学反馈
we will receive the teaching-learning feedback shown on the screen,

我能知道在课堂上
from which we can know

表现最好的几个学生分别是谁
who performed best in class.

他们表现好是因为他们做题都做对了
The students that did the best are the ones who answered

而且他们花的时间都最短
all the questions correctly, and within the shortest time.

我也能知道表现不好的学生是谁
We can also find out who performed the worst.

因为他们做题错误率都比较高
These students are the ones who made the most mistakes.

而且我还能知道我这堂课
Meanwhile, we can know which question

学生错误率最高的题是哪一个
is the hardest for the students

我能知道具体在哪一页的那个
and on which slide the question is.

如果说错误率比较高
If many students failed to answer the question correctly,

比如说像屏幕上
like the one on the screen,

我这个有接近40个学生做错的一个题
to which nearly 40 students gave the wrong answers,

那我觉得可能就是出的太难了
then we can conclude that the question may have been too hard for the students.

那是不是下一次的时候
So next time,

我就得把这题弄的简单一点
we can give them easier questions.

而且我还能够知道
In addition, we can also find out

我各个PPT中有哪几页
which slides had the most students

学生点不懂是最多的
clicking "Didn't Understand."

这个对老师来讲意义非常大
This is very useful for us as lecturers.

因为我们传统意义上老师讲课
In the traditional teaching method,

你偶尔会出现
you may encounter the following problems now and then.

你上完这堂课
You gave a lecture

比如说90分钟这堂课上完了
lasting 90 minutes,

你觉得没讲好
but you think you didn't perform very well,

课堂很沉闷
because students gave you little feedback.

虽然你已经把知识
Though you explained the knowledge

正确的没有毛病的讲出来了
properly and correctly,

但是你觉得没有达成你的收效
you still didn't achieve your desired results.

学生没有跟你互动
Students didn't interact with you.

学生只不过在听在记
They just listened and made notes.

你明显觉得他们跟不上你
And you obviously felt that they didn't keep up with you.

在这种情况下你怎么改善教学
How can you improve your teaching in this situation?

传统意义上你没有办法
If you use the traditional teaching method,

你只能闷头想
you can do nothing but think hard about

你可能在哪哪讲的有毛病
which part you didn't explain properly.

但如果说真的是你在某些地方
However, if you didn't did explain

处理的不得当的话
anything something improperly,

利用这类的工具
and you have adopted blended teaching tools,

你上完课以后就会发现
you can find out after class how many students

有一页或者多页
clicked "Didn't Understand"

有比较多的学生点了不懂
on one or more slides.

所以你能够精确地定位
In this way, you can accurately find

你到底在哪没讲明白
which part of the lecture you didn't explain well

能够帮助你以后更好的改善教学
and further improve your teaching in the future.

这是第三个好处
This is the third benefit of blended teaching.

当然第四个
Next is its fourth benefit.

每堂课我上电路原理课程的时候
Each time I teach my course on circuit theory,

我都会给学生推送大概
I will use the Rain Classroom to give students

六个或者七个练习题
six or seven questions as their homework.

现在屏幕上给出的是我某一堂课
As shown on the screen,

在2017年2月23号第一节课的时候
in my first lesson on February 23, 2017,

总共给学生推送了五个练习题
I gave students five questions using the Rain Classroom.

我作为老师上完课以后
So after I finished the class,

我立刻就能知道
I could find out immediately

不同的学生对于我这五个练习题
the answers my students gave

分别选择了哪个
to the five questions

它的正确率是多少
and their accuracy.

而且我能知道学生是在什么时间
In addition, I could find out when each student

进入这个教室的
entered the classroom.

所以我能够拿到详实准确的
In the end, I was able to get detailed and precise

课堂教学的反馈
feedback on my classroom teaching.

刚才我们说到的是老师的收益
We have talked about the benefits teachers can get from blended teaching.

接下来我们来说说学生的收益
Next, let’s discuss the benefits blended teaching can bring to students.

我依然以这个
Let me once again

基于雨课堂的混合式教学为例
take the blended teaching method based on the Rain Classroom as an example.

我觉得至少这三个收益
I think there are at least three benefits

是学生能够直接感受到的
that students can receive.

第一 学生的手机上
Firstly, students can watch

始终能够保留老师授课的课件
teachers' courseware on their cellphones at any time.

而且他只要不退出这个课
As long as they don't drop the course,

这课件永远不会丢
the courseware will never be lost.

哪怕他的手机丢了
Even if they lose their cellphones,

这个课件都不会丢
they won't lose the courseware.

他只要用另一个手机另一个平板
Because they can use another cellphone or tablet

相同的微信账号登进去
to log in with the same WeChat account.

这些教学资料就可以得到很好的保持
In this way, these teaching materials can be well preserved.

我们各位老师
For everyone watching this,

你所在的学校往往都会有这种
your schools usually have

教学资源的分发平台
some platforms used to distribute instructional resources.

但这样的平台往往都是在某一个学期
But these platforms are often only accessible for one semester

或者最长某一年里有效
or a year at most.

过了这个学期或者过了这一年
A semester or a year later,

学生要想把这个资料再找到
students can’t find the materials

没有可能了
anymore.

而采用这样的机制
However, if you adopt a blended teaching method,

这些教学资源永远得到保留
these instructional materials can be preserved forever.

这是第一
This is the first benefit.

第二
Secondly,

由于你在课堂里有各种手段
as you use various methods to give a lecture,

比如说让他做题
for instance, you ask students to do exercises

比如说让他用弹幕
and send bullet comments to the screen,

所以学生在课堂里面的注意力
students will listen to you much more attentively

思维活跃水平显著提高
and think much more actively during class.

第三
Thirdly,

学生的主动参与意识提高了
when students participate more actively in lectures,

他可以点不懂
they can click "Didn't Understand,"

他可以用弹幕
send bullet comments to the screen,

他可以用投稿
submit a note,

做题结果还有一个屏幕上的展示
and see their task performance on the screen.

所以它能够实时地观察到自己的表现
They can see their own performance in real time.

更重要的是他能够观察到
More importantly, they can see

别人的表现是什么
others' performance as well.

这一点以往的教学是做不到的
However, we can't achieve this using the previous teaching method.

你无法能够让这个学生
We can't help a student

知道在场听课的其他学生表现是什么
know how his or her classmates’ performed during class.

好 我总结一下
All right. To sum up,

我今天这堂课呢主要讨论了三件事
I have discussed three topics in today's class.

我们混合式教学要求的是
According to the requirements of blended teaching,

学生在课前在线上有学习
students should learn online before class.

在此基础之上
On this basis,

我们在课堂上组织学生线下有学习
they can learn more during our offline lectures.

线上学习行为和线下学习行为的混合
Today I have discussed tThe blending of online and offline learning activities,

是我今天讲的一个重点内容
which is a major topic.

那么采用这种方式以后
After adopting this method,

老师的收益最主要的是表现在
teachers can get the following benefits.

能够知道学生的学习
They can find out students' learning situation and

能够知道他课外的投入
out-of-class inputs,

课堂的投入和课堂的产出
as well as their in-class inputs and outputs in class.

这些事情你都能够详实准确地获取
All this data can be obtained in a detailed and accurate way.

当然我想更重要的是
Of course, what's more important is,

学生能够随着课前学习
through completing the preview task before class,

随着课堂听课
as well as listening,

随着发弹幕随着做题
sending bullet comments and doing exercises in class,

能够实时的了解到自己的学习成效
students can know the learning outcomes of

而且更重要的是能够理解到
not only themselves, and more importantly,

其他学习小伙伴的学习成效
but alsoof their classmates peers in real time.

好 我们今天就讲到这里
All right, that's all for today.