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2 months ago
In a recently published book, Mohammad T. Alhawary (2018): The Routledge Handbook of Arabic Second Language Acquisition, an interesting chapter is dedicated to a research that investigated whether Vialogues is effective in supporting pre-service Arabic student-teachers to transfer pedagogical theory to practice. The chapter in the book is titled Effect of Using a Collaborative Video-based Self-evaluation Activity ...
2 months ago
I am attending a panel session at the Education Leadership Data Analytics Summit 2018. The panel is titled, "The Multiple Facets of Education Leadership, Evidence Use, and Data Analytics." Here are the speakers: Madhabi Chatterji, Professor of Measurement, Evaluation and Education, Teachers College, Columbia Uni...
4 months ago
I attended a colloquium today at the Human Development Department of TC where Prof. Alyssa Friend Wise from NYU came to present her research in using learning analytics for online discussions in MOOC. Her research has a high relevance to Vialogues because we have been researching how to evaluate the productivity of video discussions in Vialogues. Here I'm sharing some notes and thoughts about her colloquium.She looked at five types of data: demographic, performance, activities, artifacts, a...
As SpaceX blasts off a car into space, headed toward Mars, the curtain begins to close on the “Out of this World” Mars experience in the Learning Theater. This March we are projected to send the final groups of colonists out to redder pastures. So it’s time to start thinking about what the next big edu-taining experience for the LT space might be. I spent some time pondering the future of the space and here is a pitch for a possible way to transform the 4th floor in the coming months.
7 months ago
This is an interesting TED talk by Prof. Rebecca Nugent at Carnegie Mellon University. Many people think that they are not good friends with math or statistics, and data science is something that's far removed from them. She points out that people might have wrong self-perception on their own skill sets, especially on statistics and math. We all ...
9 months ago
I encountered a great book by Curtis J. Bonk and Elaine Khoo titled Adding Some TEC-VARIETY: 100+ Activities for Motivating and Retaining Learners Online. This book proposes the following framework for educational technology design in order to engage learners in proactive knowledge acquisition and application:1. Tone/Climate: Psychological Safety, Comfort, Sense of Belonging 2. Encouragement: Feedback, Responsiveness, Praise, Supports 3. Curiosity: Sur...
9 months ago
As some of you know, yesterday (11/3) I presented my research and development works on video-based learning (including Vialogues) to a group of audience at United Nations. By the time I started presenting there were about 60 participants from all over the world, who I believe are people from the UN human resource departments of their various headquarters interested in using video for professional development.I am sharing the link to my presentation, which will have a permanent web archive:http://go.tc.edu/zhou...
10 months ago
This article, slated for publication in SSM-Population Health in December, analyses 25 years of fiscal data from California and exposes the crowding out of non-medical social spending (K-12 and higher education, social services, housing, community development et al.) by rapidly increasing health care costs. The researchers wanted to provide a point estimate of the tradeoffs of high medical spending with spending in social and public health areas:There is, in American medicine, a misleading narrative about hard tradeoffs: that reducing ...
I participated in Kevin Murphy’s talk at Data Science Institute (DSI) - http://datascience.columbia.edu/events/calendar on September 5th. Kevin Murphy is a renowned machine learning researcher and currently serves as a Research Scientist at Google.In his talk, he introduced some recent work related to image and text analysis. As the title of his seminar, “Towards Machines that Perceive and Communicate”, implies, h...
In my last blog post and presentation I referenced a study, Understanding user behavior in large-scale video-on-demand systems,  by Yu et al. I thought this study had some interesting analyses which could be applied to data from Vialogues. In particular I wanted to look at the relationship between the popularity of a Vialogue measured by the number of page visits and the session lengths or how long people spend on the Vialogue page.Below is the distribution of Vialogue video lengths.