The meaning of the Acronym WWIS is...

WWIS is

• What Works In Schools

More Meanings For WWIS:

• WIPP Waste Information System
• World Weather Information Service
• World Weather Information Service
• WorldWide Information Systems
• World Weather Information Service
• World Weather Information Service
• World Weather Information Service
• What Works In Schools
• FM-99.7, Black River Falls, Wisconsin

WWIS is also in:

• Educational
• Firms
• General
• Meteorology
• Military
• NASA
• Ocean Science
• Radio Stations
• US Government