Another dot in the blogosphere?

A Crash Course focus on edtech

Posted on: December 15, 2017

I was primed when I noticed a video waiting in my subscriptions list in YouTube, Educational Technology: Crash Course Computer Science #39.


Video source

I wanted to know what the presenter had to say about the wide field that is educational technology. The video had a good start — it pointed out that while there was a lot of information online, not all of this information would lead to learning.

The presenter then went on to suggest how to turn an informational video to an educational one. Here were some basic tips on leveraging on online videos like YouTube:

  1. Set the speed to balance the need to understand the content and also be able to reflect on it
  2. Pause for a metacognitive cause, e.g., reflect on takeaways, select strategies, anticipate what comes next
  3. Practice worked examples for active learning

Any learner work needs feedback. The quality of feedback is arguably among the most important factors that influence learning. It is also the most difficult and subjective especially when the number of students far exceeds the number of teachers.

How might edtech help in the area of feedback? The video suggested:

  1. Algorithm-based grading of assignments
  2. Algorithm-informed suggestions for more personalised materials, i.e., intelligent tutoring system

While these are nothing new to those in the edtech field, the video provided more depth on how the algorithms are shaped, e.g., Bayesian knowledge tracing.

The video was a great example of what sets an educational video apart from a merely informational one. Even its duration (under 12 minutes) seemed to be an application of research on designing videos for learning.

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