K2 Enrichment Program has moved its STEM programs for ages 5-10 to a new location, at 307 Watertown Street in Nonantum. K2 Enrichment offers after-school and weekend programs of about 7 weeks each, in addition to summer programs, school-vacation workshops, and birthday-party events. Free trial classes are available. For more information, call 617-916-0433 or email kristine@k2enrichment.com.