Playgroups

* [[oldwiki:places_to_go_and_things_to_do:classes_to_take:i_to_i|{{I to I}}]] Waltham and Acton
* {{Tots on Tuesdays}} Newton
* [[oldwiki:places_to_go_and_things_to_do:classes_to_take:ymca|{{YMCA}}]] Waltham
* [[oldwiki:places_to_go_and_things_to_do:classes_to_take:parks_and_recreation|{{Parks and Recreation}}]] Waltham

Science and Nature

* [[oldwiki:places_to_go_and_things_to_do:classes_to_take:mass_audubon|{{Mass Audubon}}]] Belmont (The Habitat) and Lincoln (Drumlin Farm)
* [[oldwiki:places_to_go_and_things_to_do:classes_to_take:ymca|{{YMCA}}]] Waltham

Visual Arts

* [[oldwiki:places_to_go_and_things_to_do:classes_to_take:arsenal_arts|{{Arsenal Arts}}]] Watertown
* {{Parks and Recreation}} Waltham
* {{YMCA}} Waltham

Music and Theater

* [[oldwiki:places_to_go_and_things_to_do:classes_to_take:music_together|{{Music Together}}]] Belmont
* {{Arsenal Arts}} Watertown

Foreign Language

* {{YMCA}} Waltham; Spanish

Exercise and Physical Education

* [[oldwiki:places_to_go_and_things_to_do:classes_to_take:the_little_gym|{{The Little Gym}}]] Woburn; gymnastics
* {{YMCA}} Waltham; sports, exercise, swimming
* {{Parks and Recreation}} Waltham; karate, summer camps