In this video, I'm going to introduce to you
在这段视频中，我将向大家介绍

the overall course structure, and how each model of content
整体课程结构，以及每种模式的内容

is organized in this course.
都是在这门课上组织的。

The course is organized as follows.
课程安排如下。

First, we start providing the course overview and logistics.
首先，我们开始提供课程概述和后勤。

Here, you will find the key dates, syllabus, assessment,
在这里，你会发现关键日期，教学大纲，评估，

and certification requirements, the edX honor code, and so on.
以及认证要求、edX荣誉代码等。

We also provide here some short videos
我们还在这里提供了一些短视频

with tips and recommendations about how
提供了关于如何

to get around SCX courses.
绕过SCX课程。

Second, you will find the five module of contents.
其次，你会发现五个模块的内容。

Then, after the content modules, there
然后，在内容模块之后，

is an extra practice problem section,
是一个额外的练习题部分，

where you will find more problems that
你会发现更多的问题，

apply the concepts learned in each module.
应用每个模块中学到的概念。

And finally, you will find the sandboxes.
最后，你会发现沙盒。

This section includes interactive tools
本节包括交互式工具

that will allow you to have fun playing with some concept
这将使你有乐趣玩一些概念，

visualizations. 可视化。

Let's see how is each module organized.
让我们看看每个模块是如何组织的。

In each module, you will find the intro
在每个模块中，您将找到介绍

to the week, different units.
到周，不同的单位。

Each unit is equivalent to approximately one hour
每个单位相当于大约一个小时

of lecture. 的演讲。

At least you will find one practice problem per unit.
至少你会发现每个单元有一个练习题。

Some toolbox, these are recitations
一些工具箱，这些是背诵

that will explain, for instance, how to solve
这将解释，例如，如何解决

a problem using Excel, or SAS.
使用Excel或SAS的问题。

And a section that will allow you to test your knowledge.
还有一个部分可以让你测试你的知识。

This is what we call the self quiz.
这就是我们所说的自我测验。

Finally, we always want to learn more about your experience,
最后，我们总是想了解更多关于你的经验，

so we have included a survey to collect
所以我们做了一个调查

your feedback and suggestions to improve these materials.
您的反馈和建议，以改善这些材料。

We take your feedback very seriously here at MIT.
我们在麻省理工学院非常重视您的反馈。

I highly encourage you to allocate enough time
我强烈建议你花时间

to each module. 每个模块。

Plan in advance and make a schedule.
提前计划并制定时间表。

Do not wait till the very last minute
不要等到最后一分钟

to review all the content and prepare yourself
复习所有的内容，

for the final exam. 准备期末考试

Let's start as soon as possible, and in this screenshot,
让我们尽快开始，在这个截图中，

you will find how this information is
你会发现这些信息

presented in the platform.
呈现在平台上。

How are we delivering this material?
我们如何交付这些材料？

You can watch the videos, recitations, at any time.
你可以随时观看视频和复习课。

This is one of the beautiful thing of the online education,
这是在线教育的美好之处之一，

it's very flexible. 非常灵活。

We always provide transcripts for each video.
我们总是为每个视频提供副本。

On the right side of this slide, you can see these transcripts.
在这张幻灯片的右侧，您可以看到这些文字记录。

You can also pause the video.
您也可以暂停视频。

You can go backwards, forwards, or you can also
你可以向前，向后，或者你也可以

decide to listen to Chris, our well-known instructor Dr.
决定听听我们著名的讲师克里斯博士的演讲。

Chris Caplice at double speed, for instance, if you want.
比如说，如果你愿意的话，克里斯·卡普利斯会以双倍的速度。

For most of our videos, we are also
对于我们的大多数视频，我们也

providing Chinese and Spanish transcripts.
提供中文和西班牙文的成绩单。

You can choose the transcripts language
您可以选择成绩单语言

clicking on the CC button.
点击CC按钮。

We are also offering quick questions and practice
我们还提供快速提问和练习

problems. 问题

I encourage you to solve them.
我鼓励你解决它们。

You have three attempts per problem, so try it.
每个问题你有三次尝试的机会，所以试试吧。

After trying it, you can click on the Show Answer button
尝试后，您可以点击显示答案按钮

to receive instantaneous feedback.
以接收即时反馈。

This is another strong thing in the online education
这是在线教育的又一强项

that you can receive this immediate feedback
你能收到即时反馈

when you are solving problems.
当你解决问题的时候。

For instance, I solved this problem
比如我解决了这个问题

and I have the first question correct,
第一个问题我答对了

the second question incorrect.
第二个问题不正确。

And the platform is telling me what
这个平台告诉我

I have correct and incorrect.
我有正确和不正确。

And as I mentioned, if you press this Show Answer button,
正如我提到的，如果你按下这个显示答案按钮，

you can see the explanations and the right answer
你可以看到解释和正确答案

for each of these practice problems.
每一个练习题的答案。

Finally, as I mentioned before, we also include sandboxes.
最后，正如我之前提到的，我们还包括沙箱。

You can have fun playing with differing concepts
你可以玩不同的概念，

in the sandbox area. 在沙盒区。

For instance, you can modify the values
例如，您可以修改

in the constraints, or the parameters in the objective
或者说目标中的参数

function and see the effect of these changes
功能并查看这些更改的效果

in the solution space. 在解空间中。

For instance, have a look to the green area in the right figure.
例如，看一下右图中的绿色区域。

Are you ready to start?
你准备好开始了吗？

Let's go. 走吧