Wiktionary
preschooling
n. the early education that occurs at preschool vb. (present participle of preschool English)
Usage examples of "preschooling".
A melange of very specific thoughts on child-rearing, education, prenatal care, preschooling, and the like, her book was an exercise in just the sort of incremental post-health care reform advocacy that the polling had indicated would be most popular.