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Dissertation
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Ari Bader-Natal


Recently...

Grockit launched (09/09), Dissertation posted (05/08),
PageAxe published (04/08),
more...
Grockit intro
IEG @ AIED-2009
Since July 2008, I have been working at Grockit, a San Francisco web startup focused on bringing live collaborative learning online. I wrote a brief overview of the game-like aspects of the system for the Intelligent Educational Games workshop at AIED-2009. I occasionally post about ongoing projects on the Grockit blog.
Dissertation
April 2008
In May, 2008, I received my Ph.D. in Computer Science from Brandeis University. Dissertation Title: The Teacher's Dilemma: A game-based approach for motivating appropriate challenge among peers.
Boston Globe article
August 2004

SpellBEE intro
AIED-2005
BEEweb intro
ITS-2006

Assessing learning
AIED-2007
Evaluating Difficulty
EDM@AIED-2007
Using Expectations
TechReport-2008
A bit about my dissertation research: In classroom-based studies, peer tutoring has proved to be an effective learning strategy, both for the tutees and for their peer tutors. In seeking to translate the successes of peer-assisted learning from the classroom to the Internet, one major hurdle to overcome is that of motivation. In my dissertation work, I examined the possibilities of motivating learning among peers by incorporating these interactions into a game. Games offer a valuable set of tools and techniques for affecting student participation, engagement, goals, and strategies. In order to experiment with the real-world effects of game-based peer learning activities, I built SpellBEE. SpellBEE is a web-based game in which pairs of players engage in a two-person English language spelling activity. Since it was first released four years ago, thousands of students have actively participated. The SpellBEE activity later inspired and informed the development of the BEEweb, a larger suite of synchronous, collaborative learning activities based on the same motivational structure as SpellBEE. Today, the BEEweb platform currently hosts PatternBEE, MoneyBEE, and GeograBEE, and more activities are currently in development.
Visualization paper
AAAI Symposium-2005
Coevisualizer
Visualization app
Earlier in graduate school, I examined methods for monitoring success and failure in coevolutionary algorithms. I developed the Coevisualizer (in Java) for experimenting with coevolutionary algorithms. I've since released this software, and plan to soon make the source code available, also.
BEEweb Status
presence monitoring
Page Axe
webapp privacy
I've released an assortment of applications, scripts, and code, primarily for Mac OS X. Among these, Page Axe enables true data privacy in the context of personal web-based applications, Berry (never released) lets me access functionality on my Mac using my very low-tech cell phone, and BEEweb Status Menu monitors the presence of players in BEEweb games.
2004 hike
summer solo
I have a few albums online with pictures from travels and hiking trips over the past few years.