Arduino

This week, Edward L. and I did our presentation on Arduino, a multiplatform microcontroller that can be programmed to fulfill many different functions. These functions can range from being able to detect earthquakes before they happen and tweeting when one is detected to powering a mechanical bull for dolls to ride on. For computer programming aficionados, this circuit board is a very exciting piece of technology. It utilizes its own programming language, but it closely resembles the C++ programming language that is standard in a lot of programming software. Arduino is also very affordable--the base chip costs around $25-$30, and add on devices called shields range anywhere from $10-$100.

One really unique aspect of Arduino is that it promotes open source programming. Open source programming is essentially a movement to get away from proprietary elements of other programs, which means that people are allowing their creative and intellectual property to be utilized by anyone who wants to utilize it without any major copyright or ownership issues. By allowing for open source development, programmers can create newer concepts based on things other people have already developed. Arduino strongly promotes creativity and innovation among those who have a knack for programming.

Linked below is a TED talk done by Massimo Banzi, creator of Arduino:

Also linked here is our Prezi on Arduino:

Online Homework- Sarah & Amy

Online Homework is something that nearly every college student has used at some point in time.  Using Online homework has several benefits, mainly convenience for professors with large classes and the way it keeps students accountable for their work.  However, some negative aspects include the increased amount of cheating and the tendency to learn trends rather than concepts when referring to problems.  Additionally, we discussed a few other ways to reenforce what is learned in the classroom like the Exeter method of teaching and contextual retrieval cues.

Lernstift Digital Pen

The Lernstift Digital Pen is a writing tool that offers the unique capabilities to sense when the writer makes a spelling, grammatical, or penmanship mistake dependent upon the mode that the pen is set to. In orthography mode, the pen senses what is being written- either on paper or in air- and vibrates once to denote spelling mistakes and twice to denote grammatical errors. In calligraphy mode, the pen vibrates when a letter is not formed properly. A future feature planned to be included in the pen is pressure plates within the grip. These pressure plates would sense whether or not the pen was being held in the correct way. The pen has two release dates set, one in mid-2013 and another in early-2014. The project is currently being funding by the public in order to launch production. It is estimated that the pen could cost anywhere from 50 to 80 euros which is approximately $65-$105.

Innotab 2 Baby

Last week, Hayley and I presented on the Innotab 2 Baby. This device is a tablet made specifically for children. The Innotab is designed specifically for child development. There are applications for the tablet that aid in child development such as sign language, nursery rhymes, and photo slide shows of animals. The tablet is child friendly with a removable gel bumper for any kind of wear and tear the device may endure.

In class, we presented a few downsides to the Innotab along with the positive aspects. Although the device has many learning applications, it could potentially be a social barrier between the child and parent. If the device is used as a replacement to the parent teaching the child certain skills, major problems could occur in the next generation. Another flaw in this device is that the age range is actually not that accurate, and children might lose interest in the applications sooner than perceived.

Today there are many new technologies that are created for the upcoming generation, but we need to stop and ask ourselves what the long term effects might be when presenting technology so soon in a child's life.

Khan Academy

Originally simply a collection of videos on YouTube, Khan Academy has developed into a fully-featured website that also offers exercises to complement its video library, a discussion forum, and a "knowledge map," which illustrates the connection between content areas. The advantages of Khan Academy are obvious: in true democratic fashion, anyone with access to the Internet can now have good-quality, free instruction in the various disciplines of mathematics and the sciences. And yet Khan Academy's videos teach only the techniques necessary to solve problems like those featured in the videos; the viewer, just as the student in the "traditional" classroom, is not often invited to consider why things are as they are, but must accept on authority that they are so. Further, there can never be conversation between video and viewer as there is ideally between student, teacher, and peers in the classroom.

For those interested in other perspectives on Khan Academy, Zack and I have prepared a list of supplemental readings, which can be found on our Bitly page.

+Binaural Beats

     This week Philip G. and I made our presentation on binaural beats.  The presentation can be found at the end of this post.  Essentially, binaural beats are two channels of slightly different frequencies, each played in one ear of a set of headphones.  Our brains perceive a pulsing of sound due to the perceived alternating of constructive and destructive interference.  One thing which I forgot to mention during the presentation is that the speed of the pulsing is equal to the difference of the two tones being listened to.  So if one ear hears 100 Hz and the other hears 105 Hz, the pulsing is at a rate of 5 Hz, or 5 pulses per second.  The hope of binaural beats is that this pulsing or beating will cause the brains waves to be drawn toward that frequency.  While I would like to see more studies on how exactly electrical signals in the brains are affected, I think there is enough evidence to be cautiously optimistic that there are positive effects.  At the very least, I think it is helpful to sometimes have a steady sound to help keep focused, so long as it is not played too loudly.  In The Shallows, Nicholas Carr lists four categories that all technologies can be placed into: those that extend our physical strengths  those that extend our range or sensitivity of our sense, those that enable us to reshape nature, and those that "extend or support our mental powers - to find and classify information, to formulate and articulate ideas, to share know-how and knowledge, to take measurements and perform calculations, to expand the capacity of our memory" (44).  Binaural beats, whether placebo effect or true science, is a technology that can extend and support our mental powers.



 

YouTube:
Last week, we presented on YouTube and the EDU portion of YouTube.
For more information, see our Presentation