Along with each CD comes a textbook which expands upon the information summarized in the songs. The textbooks, about 100 pages each, are generously illustrated with line drawings and touches of humor. They include song lyrics and simple music. The corresponding workbook lessons offer matching, fill-in-the-blank, essay, and labeling exercises.
Answer keys are at the back. Although originally wirtten for sixth graders, the content reflects some of what we find in typical high school life science texts. Whatever level you choose to use these for, they remain supplements rather than comprehensive courses. While this approach is not for all students, it does offer a rare alternative for auditory learners.