Written by Montessorians Doug and Claudia Mann and designed as an extension to the Timeline of Life, these three sequential sets offer children many opportunities to solidify their understanding and expand their research.
Invaluable additions to your library, all books are updated with current terminology and scientific developments. Paperback.
Ages 6 - 12.
Includes: Geologic Eras Set (EM60)Geologic Periods Set (EM61)Fossils Set (EM59)