The effects of high- versus low-quality child care during 2 developmental periods (infant-toddlerhood and preschool) were examined using data from the National Institute of Child Health and Human Development Study of Early Child Care. Propensity score matching was used to account for differences in families who used different combinations of child…

For generations, teachers in the early elementary years have urged their young pupils to use their brains. They're still offering the same encouragement, but nowadays they can know even more about what they're talking about. Recent advances in neuroscience--from detailed scans of the brain to ongoing research on teaching methods that increase…

Merlin C. Wittrock was a friend and colleague who influenced me and many other contemporary mathematics educators on how students learn. In this article I summarize my interactions with Merl beginning in 1965, and how over the following half-century he influenced my thinking on student learning for understanding and, in turn, on how to design…