This Investigation is recommended for students typically 12–14 years in age or those working at a middle school ability level. This guide book is made for students to work on independently.

(Sold separately: Sigma Co-op Guide: The Land Down Under — This companion guide provides group activities and hands on science lab projects that align with the subjects covered in this guide.)

8.5"x11" spiral bound

101 pages, full color

This printed guide includes the full length text of the book Toilers of the Reef by Frank Reid.

Note: The increased length/price of this guide is due in part to the full length book printed within this guide. (A non-consumable version of this guide is currently being developed. This will help to reduce the price of this specific product.)