In this book, each page counts down from 12 fish until it reaches zero fish. On every page, there are two short sentences including the number of fish, the species of fish in the illustration (each page has a different species of fish), and a sentence about how one fish is taken away (drilling, anchors, fishing, divers, etc). There is also a short fact on each page about the reason the fish is taken away.
This book would be great to use as a whole-class or small-group read aloud, especially for students who are ELLs, are having difficulty understanding what subtraction is, or for students who need a visual representation of objects. This book would also be great for a science lesson since it focuses on fish, the Great Barrier Reef, and what is causing the population of fish on the Reef to deteriorate. There are also pages with information about the Great Barrier Reef, the types of fish mentioned in the book, and a glossary that defines terms in the book and general terms related to the Great Barrier Reef.