This board book features dinosaurs, interactive sliders, and the numbers one through 10.
One large dinosaur is shown on each double-page spread, along with three bright-colored sliders that are fun for little fingers to slide and explore. A bold, contrasting numeral is printed on each slider, and that number is spelled out in lowercase letters. Each slider moves either vertically or horizontally by means of a small finger hole or two, revealing a group of dinosaurs corresponding to the number on the slider. Each dinosaur is named, and its pronunciation is included, but no further information is given. The dinosaurs are not rendered to scale. The main dinosaur in each double-page spread is large, familiar, relatively detailed, and vividly textured (Tyrannosaurus rex, Velociraptor, etc.), while the dinosaurs in the sliding windows are much smaller, less familiar, and may be difficult for young children to count and pronounce. Some questions posed do not connect with the right numbers; “How many horns does Triceratops have?” is asked on the spread that presents numerals 4 and 5, while “How many legs does Ankylosaurus have?” is featured along with numerals 9 and 10.
Although toddlers and preschoolers may enjoy the sliders, this book doesn’t establish an impressive identity as either a counting book or a book about dinosaurs. (Board book. 2-4)