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Alisa Acosta
90 followers -
Educator, scientist, remixer of music and ideas
Educator, scientist, remixer of music and ideas

90 followers
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"Why has the capacity limit not been raised? Because the block chain is controlled by Chinese miners, just two of whom control more than 50% of the hash power. At a recent conference over 95% of hashing power was controlled by a handful of guys sitting on a single stage. The miners are not allowing the block chain to grow."

https://medium.com/@octskyward/the-resolution-of-the-bitcoin-experiment-dabb30201f7#.kvwxahzfn
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Curious about the origins of modern assessment and its implications on student learning and behaviour? According to Glaser et al (2001), "Current assessment practices are the cumulative product of theories of learning and models of measurement that were developed to fulfill the social and educational needs of a different time."  Check out my series of posts documenting the roots of educational assessment and where we should go from here: 
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2014-01-17
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