Cathy Davidson has been arguing recently that we should teach a 4th ‘R’, algorithms, on par with literacy and math.  To my delight, what she talks about is not just teaching existing algorithms to kids (“first we’re gonna memorize bubble sort, then on to merge sort“), but rather teaching them how to think about the world algorithmically.

The distinction is an important one.  As Cathy says:

Algorithmic thinking is less about “learning code” than “learning to code.”

A very handy collection.