timelets

An interesting piece of research on developmental cognition:

In a monumental study involving 709 children, Alloway et al. tested the development of working memory capacity with a number of tasks.48 They documented a linear increase in working memory capacity from age four to age eleven.
...
An increase of only one chunk in working memory could herald the emergence of an entire range of qualitatively distinct cognitive operations.
doi: 10.1111/nyas.12189

First, I wanted to write that a good pre- and elementary school would be essential for development. Then, I thought that we don't quite know what "good" means in this context. Maybe the Finnish education model works because they expose kids to a broad variety of tasks from an early age.