The Studio of Engaging Math (320 Washington Street, Brighton) is hosting one-time, free, fun and playful trial classes for those who will be kindergarteners next fall…and their parents. The Studio’s ongoing classes introduce kids to spatial reasoning, number sense, geometry, critical thinking via activities and games. Register online for any of these free trial classes:  June 12, 4-5PM (English) and June 13, 5-6PM (Russian).