In these activities, middle school and high school students examine the threat of nonnative plant species to Hawaiian ecosystems. Students explore different viewpoints on alien plants and consider how beliefs and attitudes may affect others' decisions concerning nonnative plant species. Students also identify invasive plant characteristics and determine how these may influence ecosystem management decisions. A resource management scenario, complete with budget constraints, challenges learners as weed warriors. Expected outcomes include students' ability to persuasively communicate perspective, identify factors that influence invasiveness of nonnative plant species, and effectively prioritize resource management strategies. (Contains 1 table and 1 note.)