Astrobiology is the integrative science that seeks to understand life's origin, evolution and distribution within the universe. To approach such big topics requires the reconnection of "classical" scientific disciplines - from astronomy to evolution, from chemistry to geology. This workshop, designed for secondary science teachers, will introduce the big picture of astrobiology before delving deeper to highlight specific contributions from cosmochemistry, heliophysics, astronomy, geosciences and evolution. The central theme is "twin timelines" - the timeline of the universe (from the Big Bang to the origin of our species) and the timeline of human discoveries (from the Age of Enlightenment to emerging frontiers). Besides lectures and state-of-the-art lab tours, the newest development will be the active participation of all scientists leading hands-on activities. This workshop also includes explicit time for reflection and development of teaching lessons by the participants. With these shifts in emphasis from previous years, we welcome applications from returnee teachers. Registration fee is $50. Because of a tuition waiver, 3 University of Hawaii graduate education credits will be offered for the administrative fee of $158. A limited number of teachers from continental US will receive a subsidy of $1000 to defray expenses. Accepted Hawaii teachers will be fully subsidized. Dormitory accommodations will be available on the UH campus within walking distance of the workshop.