Intercambios, Spanish for Global Communication is a short beginning Spanish program for students who wish to rapidly put their new language to practical use. Intercambios Flex-Files: Expandable Resource Kit empowers instructors to build the ideal course for their program and their students through a selection of high-tech components (text-specific video, Internet page, four-skills CD-ROM), and text-based supplements (supplemental grammar, culture and reading worksheets) that can be bundled just for your students.