February 21, 2012|Michael B. Farrell, Globe Staff
Preschool teacher Denise Nelson doesn’t talk much about volcanoes anymore. Or dinosaurs.
Instead, she has spent the past six weeks trying to get 20 3- to 5-year-olds in her Head Start classroom at a Worcester preschool to ponder the properties of water. Leaning over water tables, they find out which blocks float and why paper boats sink. And they get a bit wet along the way.
Read the article