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Hello, welcome to the second half of the 
welcome lecture. 

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Now I want to focus a little bit more 
about the course itself. 

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And so so the, the material is part of a 
course that I teach at the University of 

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Michigan called SI502, which is Network 
Communic, Computing, Storage, 

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Communication and Processing. 
I also have some of these materials, it's 

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also got Python in it. 
It doesn't have any Python in this class, 

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there's no programming. 
So, it's really just part of this intro, 

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intro technology class that I teach at 
the University of Michigan. 

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it's sort of taught in the middle, I give 
students a break between the Python 

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programming. 
and so this is a, a short message from 

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our, our lawyers. 
And this is on the certificates or 

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something like this is on the 
certificates that basically says this is 

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not a University of Michigan course. 
It doesn't count for credit at the 

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University of Michigan. 
It's a free course and it's for you to 

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learn. 
It's not so much about credit. 

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And so, enough of that. 
When I got involved in Coursera, and I 

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wasn't the earliest, but I was one of the 
early folks in Coursera. 

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And what I wanted to create was a 
freshman class, like an introductory 

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class. 
Like a class where we all come together 

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and kind of get to know each other and 
learn something kind of fun and, and 

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really enjoy getting started together. 
And I think there are other classes and 

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courses here that are more sophomore, 
more junior and senior level courses. 

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But I wanted to be I wanted to be on 
early, and have some writing involved in 

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it, explore the software to get, and I 
want people to take my course and then go 

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off and take other Coursera courses as 
well as other courses. 

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'Cause I think a big part of education is 
getting to know people and getting 

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socialized and, and understanding how an 
environment worked. 

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And, I have a long history of open source 
software development. 

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And one thing about open source software 
development is your supposed to be open 

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to suggestions, and other, and let other 
people other than me make decisions about 

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the course. 
And so, I encourage you to, you know, to 

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contribute to the course, to give me 
suggestions, to tell me how I can improve 

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the course. 
Sometimes I even explicitly ask you for 

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help on exam questions, or help to come 
up with better homework questions, all 

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kinds of things. 
I really like it when you take care of 

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each other. 
A big part of these large classes is the 

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learning becomes more social. 
You can help each other faster then I can 

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help you. 
community teaching assistants, they can 

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help you, as well. 
So, I tend to wait and let you guys solve 

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your problems and help each other. 
And then I sort of, sort of pat people on 

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the back, and tell people that they're, 
tell people if something's wrong, I'll, 

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I'll try to fix it. 
But but in general, I really want us to 

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learn together. 
So the the backbone of the course is 

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lectures. 
recorded audio lectures, hey, like this 

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one. 
I give you the lecture notes in PDF, two 

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formats of PDF. 
The print one is designed if you're 

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going to print these out on paper. 
The slides are smaller, and there's four 

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per page, and they don't use up as much 
color ink. 

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And I also give you the PowerPoint, so 
that you can either modify them, or some 

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people use PowerPoint to scribble on. 
And, you, the slides are creative commons 

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by attribution. 
And so, you can use them and reuse them 

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in your own teaching. 
And that's why I give you PowerPoint, so 

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you can modify them. 
Most of the videos are up on YouTube. 

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You can point at them, I don't want you 
to put copies of my videos up on YouTube. 

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You're allowed to download them. 
some of the videos are copy, have 

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copyright IEEE material in them. 
So, you really can't do anything, except 

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use them in, for the purposes of this 
class and for your own per, personal use. 

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And they belong to IEEE, and they remain 
copyright IEEE. 

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Of course, you can use them in your own 
teaching. 

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You know, that's, that's totally fair, 
it's just the key is not to republish the 

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material. 
So, if you borrow my slides, they're 

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totally re-publishable. 
So, the class is, you know, eight, nine, 

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ten weeks long with some exams. 
The syllabus has the, the detail. 

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I, I expect this to be it's not like a 
three-credit college class. 

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I expect three to four focused hours of 
your time per week, maybe five or two or 

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more, two more hours or so, depending. 
and I'm going to make it, so that in the 

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first two weeks we're not moving so fast 
that people can't still join. 

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So, I kind of give the assignments a 
little longer in the first couple of 

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weeks, and give people a bit of time to 
catch up. 

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But if you have people who want to join 
the class, you've got to get them in 

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early. 
And so, we'll shut down new enrollment at 

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some point. 
And people won't be able to join the 

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class, and you know, maybe about three 
weeks in or something. 

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And off we go and we'll be a cohort. 
A big part of the class is the discussion 

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forums, and this is both where you meet 
and find each other. 

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Coursera classes often have very active 
and great discussions in the forums. 

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you folks come from all over the world. 
there are thousands of people in the 

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class, thousands of people active. 
And and I really get a great deal of joy 

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interacting with all of you. 
And regardless of where you're coming 

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from, I think that's particularly fun. 
One of the things I've taken to doing, 

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because I have a very active travel 
schedule as a faculty member here at the 

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University of Michigan. 
I do a lot of speaking engagements about 

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MOOC's and open source software and Sakai 
and standards, and all the things that I 

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do, I get, I, I, I end up on a plane a 
lot. 

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So, one of the things I like to do is 
take a couple hours out and announced to 

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the students in the class announced to 
you that oh, hey, I'll be in Barcelona, 

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Spain, for from, you know, 10 to noon on 
a Saturday morning. 

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And then people come by, and I've had 
these all over the world, New York, Los 

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Angeles, Michigan, North Carolina, 
Chicago, DC. 

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Seoul, Korea, Barcelona, I've had them 
all over the world, and usually somewhere 

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between 2 and 15 show up, and it's it's 
great fun. 

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And so I would love, if I end up doing 
office hours, if you will show up an 

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office hours. 
The way that you earn your grade is 

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through assessments, there are questions 
that stop in the middle of the video, but 

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they do not count. 
So it doesn't really matter if you get 

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them right or wrong. 
There'll be one quiz to cover each week's 

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worth of material. 
That will be worth ten points. 

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And the final exam, and the quizzes you 
can take over, and over, and over again, 

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and hopefully your score goes up each 
time you take, you get to keep the last 

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score, I think it's the last score. 
The final exam [SOUND] is a little 

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different, and I'll send notes out about 
this. 

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It's one attempt, you have 24 hours, 
which you have 24 hours within a 

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two-week, week period. 
Once you start it, you have to finish it 

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within 24 hours. 
so, you don't get to take it over and 

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over and over again. 
And there's three extra credit 

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assignments that are peer graded for 
writings, 10 points each. 

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Now you don't have to do the extra 
credit. 

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You'll see in a bit that the points are 
based on the percentage of the points for 

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the quiz plus the final exam. 
So, peer grading is a way for you to, if 

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you like to engage more deeply in the 
material and engage more deeply in your 

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fellow students. 
The extra credit material is peer graded. 

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But you don't have to do it, your peers 
will determine your grade. 

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Now the way it works is the high ones and 
the low ones are thrown out, so it's the 

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middle ones. 
And so, if somebody gives you zeros, 

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unless everyone gives you zeros, you'll 
get the score, the middle score. 

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Not the high nor the low, it's not an 
average. 

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So, you get some low scores, those low 
scores are basically thrown away. 

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And so, you've got to write your 
submission knowing that it's your fellow 

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students that are going to judge you. 
I'm not going to come in with thousands 

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of assignments and regrade them if you 
disagree with the grading. 

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So, you've got to write with your 
audience in mind. 

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And so, in the course if you get, not 
including the extra credit. 

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The extra credit is just added on. 
Basically the total for the assignment 

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plus the total for the exam, is how I'm 
going to calculate the course percentage. 

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So, I take the total you learn, earn on 
the assignments, 10 a week. 

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The total on the exam, say if the exam 
was 30. 

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So there's 7 assignments times 10, 30. 
And then so 7 times 10 and 30, in this 

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case 100 is the denominator. 
And then we add to that on the numerator, 

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we add the extra credit. 
So, if you don't do the extra credit at 

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all you have up to 100 points, all right 
100 points 100%. 

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The extra credit, and you might not get a 
10 on every one of the extra credits. 

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But the extra credit is just extra 
credit, it's added on. 

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And so, after I do this calculation, I 
guess we can clear this here. 

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After we do this calculation right here, 
that percentage, which might be over 

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100%, if you've done extra credit 
assignments. 

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If you're above 75%, you're going to get 
a certificate. 

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And if you're above 85%, you'll get a 
certificate with distinction. 

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Now, if you really want a certificate, 
don't plan on getting exactly 75% or 

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74.99% and then do a bunch of 
complaining. 

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Okay. 
This is about learning, but if you want 

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to get the certificate, don't shoot for 
the low level, or the same thing. 

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If you end up with 84.99, you know, 
don't, I, just earn the certificate, get 

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the points, don't let it be close, okay? 
So, 85 75% for certificate, 85% for 

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certificate with distinction and there 
will be no individual regrade or point 

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appeals, or if you think your peers are 
completely confused and misgraded you. 

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Just do the next assignment, right. 
So, that's part of the reason that I made 

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peer grading extra credit. 
So, as I mentioned you're supposed to 

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help each other. 
And you'll help each other a lot. 

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I mean, the questions in the forums in 
one class get aver, answered 24 hours a 

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day, 7 days a week, an average of 21 
minutes. 

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And that's because often the people who 
know the answers to your question the 

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best are maybe in the time, same time 
zone as you are, and taking the class at 

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exactly the same time you are. 
So, ask the questions in the forum, the 

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answers will often come in the forum. 
and on the quizzes if you have some 

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confusion, or you have some clarification 
that you need talk about it, you know the 

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people who could just sit and take the 
quizzes over and over eventually get 10 

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out of 10. 
So, we don't think of the quizzes as 

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highly sensitive material. 
You tend not to just put all your quiz 

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questions and then your answers in the 
form that would be tacky. 

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But you know, just if somebody had a 
problem with question seven, and there's 

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some confusion, you know, don't worry 
about being highly sensitive or secure 

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about it. 
Say, oh I'm having problems with question 

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seven. 
I think that C is the answer, but I don't 

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quite understand why packets aren't also 
streams, or something like that. 

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So, the ques, the quizzes are designed 
often to have thought questions. 

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And so, in the curiosity that goes around 
solving some of the quiz questions, you 

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can, can learn some. 
plagiarism is an important thing in this 

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course. 
The place where this pops up is in the 

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writing part, the peer, the peer grading. 
And my definition of plagiarism is 

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basically taking material verbatim. 
Without sort of re-expressing it and 

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pasting it in as if it were your own 
material without attri, attri, 

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attribution. 
So you, you can put a little quote in, 

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but you gotta put it in quotes, and say 
blah blah blah blah blah, Winston 

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Churchill or whatever, okay? 
So it's, it's not plagiarism to put 

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something in, it's plagiarism to put 
something then and claim it as though you 

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wrote it. 
The most common thing is people well 

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start taken paragraphs from Wikipedia and 
putting them in, and we will mark them 

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off. 
We will mark half off, if there's a 

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little bit of plagiarism, and if it's all 
plagiarize, then you get 10 off. 

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Now, they are going to be five people 
grading this. 

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And so you know one person might think 
it's plagiarism, and if nobody else does 

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then you know your grade won't be, your 
grade will reflect what the average, or 

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what the median person came up with, not 
what the low person came up with. 

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So, we also have an honor code in the 
class, the key that this really has to do 

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with the final, you're not supposed to 
give nor get help on the final. 

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It's open book, it's open notes, it's 
open network, you can look at the 

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quizzes, you can look at the the videos, 
you can do anything you want. 

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What you can't do is just give the 
questions to somebody else and ask for 

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the answers from them, or have them take 
the test for you. 

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Even on the quiz, you're supposed to 
pretty much do it yourself, but you can 

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ask people for help if you need some help 
or clarification on the quiz questions. 

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Again, the quizzes really are more about 
learning and the final exam is more about 

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measurement. 
And like I said, if you get about 75%, 

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you get a Statement of Accomplishment. 
There are two levels, one is normal and 

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one with, with distinction. 
As I mentioned, 75% and 85%, and the 

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syllabus has the exact details on how 
many points given the total number of 

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points. 
and that's a Statement of Accomplishment. 

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And this is at no charge. 
There is no charge for the Statement of 

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Accomplishment. 
If you finish, you get this absolutely at 

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no charge. 
If, on the other hand, you want something 

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a little nicer, Coursera has identity 
verification mechanism. 

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So, part of the problem with the 
statement of accomplishment is it says we 

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did not verify your identity at the very 
bottom. 

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Just like that lawyer stuff at the very 
beginning. 

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And so, this small charge for the 
signature track is because they're 

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going to put some effort into. 
You have to kind of, you know show them 

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your passport on a camera, and they type, 
they do things to figure out who you are, 

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and they check to make sure it's you 
every time a quiz is being taken. 

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And there's a small charge for this, it's 
optional, optional, optional. 

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Do not feel you need to do this. 
if you want it, great. 

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And and if you're in a situation where 
you can't financially afford it, there's 

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also scholarships available and you can 
apply for those at the Coursera site. 

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Now, this is a way for those who can 
easily afford it, who really don't care 

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and have money to spend, it's a way of 
saying thank you. 

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I don't exactly how it's going to work. 
But, someday they tell me, I might get a 

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tiny bit of the money from this. 
I mean, most of it's going to go to 

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Coursera, because they're the ones 
building all of the servers and stuff 

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that we're using for this, which is 
totally awesome. 

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and some of goes to University of 
Michigan. 

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And some goes to little old me at some 
point, right. 

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And so, so who knows, if you buy one of 
these things, I might come and buy you a 

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cup of coffee in office hours in Peru 
someday. 

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If I get to Peru, but don't feel any 
pressure. 

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I mean it's, it's no big deal. 
I mean this is aimed at being free. 

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but if you want, you can do this. 
So, I love the fact that it's optional. 

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That's what's beautiful about the 
signature track. 

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I don't do anything different for the 
signature track. 

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It's not like we have special signature 
track parties where we all hang out, 

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like, oh, welcome to the signature track 
party. 

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No, it's the same as everybody else. 
And it's really optional, and it's, it 

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gives you a little stronger statement 
that says we have verified the identify 

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of this person and the name on this 
certificate is this actual person. 

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because you could sign up and call 
yourself Batman. 

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And that would not be good. 
but they wouldn't give you a signature 

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track named Batman, unless you really 
were the Batman. 

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Okay, so I hope you get that, optional, 
optional, optional, it's nice, but 

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optional. 
So, given that there's always thousands 

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of students in the class, it's not really 
practical to send me direct email. 

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you may find that you'll catch, there's, 
like, if you go to drchuck.com, you may 

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actually catch me online, or you can talk 
to me right, interactively. 

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the most reliable way to catch me is on 
twitter. 

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If you tweet something with @drchuck in 
it, usually, unless I'm sitting in a 

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meeting, like right now, within five to 
ten minutes I will see it on this. 

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So, I watch my Twitter very carefully, 
where I, no matter where I'm at, all 

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around the world. 
And if you mention Dr Chuck, I see it. 

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I want you to contact me if something's 
wrong, right, if, if question, so what 

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usually happens is I make a quiz and 
question three has no right answer. 

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And you all figure it out really fast, 
and there's like In the forums, there's 

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like this, oh, the answer to question 
three is wrong. 

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Well, somebody needs to tell me question 
three is wrong, so tweet like, hey Dr 

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Chuck, the forums are on fire, question 
three is wrong. 

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And I go, whoa, and I go fix it and it's 
all calmed up. 

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So, when things are broken in the course, 
that I can fix, I want to know about it 

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right away. 
And that's what Twitter is good for. 

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Not everyone has to do this in Twitter, 
but somebody has to notice it and let me 

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know. 
So, as I mentioned, in the first couple 

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weeks we're going to have the 
registration open, but then we're 

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going to close it down. 
You can watch the first lecture or two 

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and kind of see if you think the course 
is going to be worthwhile. 

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And if you think it's cool, then bring 
people. 

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That's people to help you work through 
it. 

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and so I've tried to make it so that you 
can join in the first few weeks and still 

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get all the credit, okay? 
So, bring your friends, but bring them 

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early. 
And if they're too late, then they have 

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to register for a later one. 
We also have a Facegroup, Facebook group 

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for the class. 
It's totally optional, I didn't make it. 

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I don't run it, I post to it every once 
and awhile. 

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I don't quite know why people do Facebook 
groups, but they do and there's one for 

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this course. 
And so, we have some materials that I use 

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in this course that I use with 
permission, some of the papers that I 

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give you come from IEEE Computer 
magazine. 

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And I have permission to use them within 
this class that, doesn't mean that you 

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have permission to republish them, but 
you're, you're allowed to use them for 

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the class. 
Richard Wiggins, my co-host for the 

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television show, has some materials that 
I use in class and I have his permission. 

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And the folks at Open Michigan, 
open.umich.edu, have helped me in the 

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copyright clearance of my slides and 
other course materials, which I think is 

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really good. 
So, this for me, even though we've done 

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it a couple of times now, is I'm still 
curious. 

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I'm still very curious of this form, and 
so you, please help me, you know, give me 

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suggestions, tell me how to improve this 
class. 

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You know, I you can say it's terrible. 
That's not too helpful, but if you can 

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say, you know, this would work better if, 
and sometimes I'll just send you 

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questions and say hey, how do you think I 
could improve x, y, or z? 

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And so I, I don't think this class is 
ever at the point where it does not need 

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any more improvement. 
I'm a big fan of open source software and 

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open education resources. 
My slides are creative commons by 

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attribution, and I give them to you in 
PowerPoint format, so you can edit them. 

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You can use one of them, you can use all 
of them. 

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I really want to help you, if you're 
possibly a teacher, to be able to reteach 

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this material, or use parts of this 
material. 

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So, I'd be honored if you reused my 
material. 

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The course videos are available, yhey're 
available on YouTube, so you can point to 

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them. 
I'll give you later a YouTube, when the 

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class finishes, I'll give you a YouTube 
channel that has them all together 

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bundled up nicely. 
And if you look you'll see as each 

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lecture comes up, there's a YouTube link 
for it. 

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and it's a violation of Coursera terms to 
take any of the videos, like the IEEE 

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video or even my lecture videos. 
Anything that you get from any of the 

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Coursera class, you're downloading them 
for your own personal use. 

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You're not supposed to like, make your 
own YouTube channel from my, or anyone 

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else's Coursera course. 
So, if you If we find that you're, like, 

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trying to make YouTube channels out of 
Coursera courses, then you kind of get in 

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some trouble. 
So, I do want you to reuse them, right. 

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00:19:03,120 --> 00:19:06,770
I want you to, you know, use my stuff in 
your own classes, but I don't want you to 

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sort of publish your own YouTube channel 
that is your version of my class. 

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And so, so with that, let's go ahead and 
get started. 

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And welcome to Internet History, 
Technology and Security. 

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And up next, we have our first real live 
lecture. 

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Thanks. 

