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Embed short graded or self-assessments either in the video itself, or at the end of each video. Including one or two multiple-choice questions or requests to post to a forum—either between scenes (using a post-production editing tool such as Camtasia or Captivate) or after the video—alerts students to the “take homes” they should be getting from the material. It also helps teachers assess, at point of contact, whether students understand the major concepts.

Typical instructional design and pedagogy focus on breaking down a subject into component parts, gaining mastery of those parts, whether they are steps in a process or techniques or parts of the anatomy, and then reassembling them in the learner's mind and in practice so that the result is overall mastery of the broader subject. That may be oversimplified, but this basic approach goes back to Aristotle, at least. It's not debated in education, it's assumed that this is the best approach for learning anything, including complex processes or highly nuanced behaviors in shifting contexts.

Centola's conclusions. He studied positive changes in people's behaviors regarding health care, changes that resulted directly from placing subjects in carefully designed social networks with the goal of improving their health decisions. What he concluded was that smaller, tighter social groups had more success improving health behaviors than larger, looser social groups (ie, the typical Facebook connections). Maybe you already see what it took me a while to notice. Both of them had success. Social networks designed for a specific purpose can do something pretty amazing: They can change people's behaviors. Any educator or trainer whose goal is actually to impact both thinking and behaviors (to change lives!) rather than just getting people to pass a test or check a box, should be paying close attention. And maybe getting a little excited.Researchers in education have long known the power of social groups to alter behavior. Brown, Collins, and Duguid made this case a while back

these three went on to say that highly complex behaviors are picked up, absorbed, through relatively informal social exchange more quickly than they could be if they were "taught" in the usual break-it-down sense. We're talking about complex behaviors. Processes. Highly nuanced interpersonal interactions. Centola's study suggests to me that we now have an online tool, the social network, that is fully capable of carrying the power of culture to shape behaviors and establish norms. And it can be done on purpose.

Microsoft Research New England researcher danah boyd (boyd uses an all lowercase name) calls two of the techniques "super-logoff" and "whitewalling".  She outlined what she calls "risk reduction strategies"

designing for a mobile device can lead to a solution that is worlds different than its desktop equivalent.

Context of Use

Users have a very specific need and desire to accomplish their goal in the easiest and fastest way possible. This fact alone helps explain why mobile interfaces are designed the way they are

The iPad has a bigger screen, and so it has a bigger resolution. With the iPhone 4, however, Apple did something different: they increased the resolution without changing the physical size of the screen. This makes for a higher pixel density, pixels are smaller and more tightly packed. In one square inch of the iPhone 4’s screen there are around 106 thousand pixels (at 326 PPI, or Pixels per Inch), while the older models have only about 26 thousand (at 163 PPI) in an inch – 4 times less! This makes graphics on the screen seem like continuous lines, because your eye can’t see the individual pixels. Apple calls this technology the “Retina Display” because they claim the human eye (the retina) can’t physically see the pixels at this resolution.

Using Two Images The official way of adding high-resolution support to your application is by having two versions of each image, one in “regular” resolution and one in double resolution. Whenever your application is viewed on the Retina Display, the larger image will be loaded automatically. This method allows for full and precise control of how your application will look in each case, and is very easy to apply to your existing applications. The full size image file should be named however you want, such as “Button.png”. Use this image name in your code and Interface Builder wherever you want to reference the image. The double-size image should be twice the size of its matching smaller image and named exactly the same with “@2x” appended to the name. In our example, we would name it “Button@2x.png”. Unfortunately, this technique will not work on the iPad; a pixel-doubled application will not load the higher resolution resource. This will probably be addressed in the future iOS 4 update which is scheduled to come to iPad this fall.

This paper investigated the use of special eyeglasses designed with a built-in video camera and microphone for the purpose of recording classroom activities from the point of view of both the professor and the student. The aim is to eliminate the need for dedicated video recording in the classroom. This paper reviewed the various techniques used to record a lecture and highlighted the advantages and disadvantages of each. It also presented 10 activities from the point of view of the student and the professor, which may play a role in improving students' understanding of the lecture. The videos produced by the professor and student cameras were reviewed in terms of their effectiveness and usefulness with regard to the 10 activities. The results were analysed and conclusions were drawn based upon the findings of this study.