The uniqueness of the world's Grasslands is explored in this teacher's guide, complete with reference materials, classroom, and reproducible activities. This product, like Rain Forests and Forests, allows teachers to assign students the study of the American grassland habitat or grasslands of the world. The CD-ROM for both versions contains 45+ interactive activities designed to expand student interest and knowledge. System Requirements: Macintosh: Power PC, 32 MB RAM, System 7.6 or higher. Windows: PC Pentium, 16 MB RAM (32 rec.), Windows 95/98. 1 Hybrid CD/1 Book