Offline Activity/Project Ben Franklin's Harmonica Explore the world of sound with hearing and other senses, and find out how different length straws influence sound by modifying frequency. http://www.pbs.org/teachers/includes/content/features/images/programs/saf/saf-alan1.jpg http://www.pbs.org/safarchive/4_class/44_guides/guide_804/4484_franklin.html?campaign=features_t Offline Activity/Project Spectacular Squid Learn about the short life of the opalescent squid, and investigate the habitats and adaptations of squid and their relatives. http://www.pbs.org/teachers/includes/content/features/images/programs/oceanadventures/oceanadventures-diver.jpg http://www.pbs.org/kqed/oceanadventures/educators/treasures/spectacularsquid.html?campaign=features_t Offline Activity/Project Straw Kazoo Discover how straw kazoos of different lengths create higher and lower pitches. http://www.pbs.org/teachers/includes/content/features/images/programs/zoom/zoom-cast.jpg http://pbskids.org/zoom/activities/sci/strawkazoo.html?campaign=features_t Online Professional Development The Computer for Personal Productivity Squeeze more time out of your day by tapping the power of technology to communicate, create, and plan. http://www.pbs.org/teachers/includes/content/features/images/teacherline/ks16046-computercoffee.jpg http://www.pbs.org/teacherline/catalog/courses/TECH300/?campaign=features_tl