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Any time you begin a communication, whether face-to-face, in writing, or over the phone, it's important to think about why you've opened that line of communication, what the goal of your interaction is, and how you're going to deliver your message. In this video, we'll watch 3 segments of a presentation created by MIT students. You will analyze the strategy used to develop the message, and hear how and why the presenters chose this strategy. This video is part of the Communication video series. Successful professional communication begins with the ability to analyze situational variables and make strategic decisions. Hi, my name is Joanne Yates, and I'm a Sloan Distinguished Professor of Management and Deputy Dean in the Sloan School of Management at MIT. After watching this video, you should be able to use a strategic approach in order to communicate effectively. This means that you will be able to Analyze your audience, context and purpose Examine an...

PROFESSOR: Any questions about where we left off-- up to where we left off? OK, what I'll do then is give you a few more examples of the combinations in 22 to show which ones we have to retain as frameworks for crystallographic point groups and which ones exist as groups but which involve rotational symmetries that are not permitted to a lattice. So we've seen a combination of three orthogonal twofold axes and then projection that would look like this. And the international symbol for that point group is just a running list of the different axes that are present, 222. The next group in the sequence would be 3 2 2, where we took a 120 degree rotation. We combine that with a twofold axis perpendicular to it and the new twofold axis comes out and reminds you again of things that are quite clear but which are easy to forget-- that this angle here is 1/2 of 2 pi over 3. Don't forget that 1/2. So the neighboring twofold axis is 60 degrees away and then if we allow t...

PROFESSOR: Any questions before I obliterate all this lovely geometry? No. OK. We handled them during intermission I guess. Let me do a couple more plane groups just very quickly to show you how they come out without going through all of the steps, because I think we've seen now what one has to do to derive these. There are two that are left. One is a threefold axis, and if that's all the symmetry we've put into the lattice, we're combining a threefold rotation axis with a primitive lattice, and we know that this has to be hexagonal net. Because from our depth of experience, we know that is the shape of a lattice that is demanded by a threefold axis. It has two translations, T1, that are identical in length. And this angle between them is exactly 120 degrees. That's what we saw a threefold access require. So now what we are doing is putting in a threefold axis at one lattice point, and this means we are adding the operations A 2 pi over 3. A minus 2 pi...

PROFESSOR 1: Yeah, any questions about this? Yeah. AUDIENCE: I actually have two. One's an incidental question. You keep mentioning something that I never heard of called "ardeeno", or something like that. PROFESSOR 1: Yes. AUDIENCE: What is that? PROFESSOR 1: Arduino is a tiny little microcontroller-- not related to video games, really. But it's a tiny little microcontroller. And you connect it up to a circuit, and then it can tell an LED to blink every five seconds. And it can detect when you press a button, and it can read off of a light sensor, whether the lights are on. So it's a little kind of computer chip that you program to do one particular task that connects out to the world. AUDIENCE: So then the more generally-- I'm curious what the connection with Kinect is in this course. If we didn't want to use Kinect, is that an option? The reason I'm a little nervous is because I don't own one, and I don't have access to one. So...

So is there any way to prove that pidgins never existed, or can they only not be proven to exist? So actually, I think this question hinges on the way you def-- on what you mean by pidgins, what is meant by pidgins, right? So at least wanted define pidgins, which is to say that there are these systems of communication which are created when people come from different language background and they have to communicate, they have speak to each other. So like in Africa, in Asia-- in fact, this term pidgin arose in the coast of China, and it referred to this business language that people used to cross linguistic barriers. So from that perspective, pidgins do exist, right, if you take it as that definition. Pidgins have been documented over and over again. They are non-native languages, and typically, they indeed reduce in structure. But as people use them more and more, they can develop structure. So-- go ahead. OK. AUDIENCE: I guess my question be more like, if-- you were sayi...