Abstract
In this study, the author investigated the influence of the educational program Nature on the Way to School on children's everyday perception of species. More than 4,000 children (8–16 years old) from 248 classes in Switzerland participated in the study. Possible influences of the program were evaluated with the help of pretest and posttest questionnaires completed by test-group and control-group teachers and students. Participation in the program significantly increased the number and diversity of species that children noticed on the way to school; the positive effects increased with the time spent on the program. The program had a similar positive effect on both younger and older children and on girls and boys.