Dr. Rita Colwell: Turning Old Clothes Into New Hope – Students will read an article about the work of Dr. Rita Colwell who made many key discoveries about clean water and cholera. Her finding that the traditional sari can be folded to act as a water filter has helped many people in developing countries drink cleaner water. A follow-up activity requires students to use scientific vocabulary and to clarify their understanding of the science in the text. This WAP is available on the primary and intermediate levels. An Emergent Reader activity is also available. These WAPs correlate with Content Standard G, History and Nature of Science, Science as a Human Endeavor of the National Science Standards.