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Powerful Online Learning is a Distributed System

In the midst of a pandemic, universities are now rapidly shifting to online and remote learning. Here, I will suggest a core metaphor for what powerful online learning can look like. The Distributed Systems Metaphor for Online Learning suggests that an instructor should fully engage and connect the students (the processing nodes) to maximize their active effort to elaborate, coordinate and give each other constructive feedback, with a collective goal in mind (i.e., learning more deeply by harnessing cognitive diversity).

There is More Than One Way to Become a Good Programmer

A recent Communications of the ACM article casts aspersions on the innovative concept of code academy, a fast-developing approach to teaching programming. The analysis in this article, based on my own experience developing a code academy in the past three years, shows that there is no justification for such contempt. Code academies are a different approach, complementing the traditional university model; they do not offer everything that universities do (and do not pretend to), but also provide a number of benefits not available from university education. They can also serve to provide university graduates with new expertise. They fill industry's crying need for good software developers. They are a complement to universities (and MOOCs), not a competitor, and have earned their place in the battery of educational models.

Shape the Future of Computing

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Communications of the ACM (CACM) is now a fully Open Access publication.

By opening CACM to the world, we hope to increase engagement among the broader computer science community and encourage non-members to discover the rich resources ACM has to offer.

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