QuickGuide to Major Groups of Freshwater Invertebrates
We have used the cards numerous times for Envirothon training and classroom programs. They were used in the classroom as well as in the field during presentations to grades 5-12. All teachers and resource people have commented on their usefulness. The pictures and details of the invertebrates are excellent and we have found that the majority of them are the exact ones we need for our various programs. --Ricky Hayes, Resource Conservationist, Wilson Soil & Water Conservation District, North Carolina