Hello Reader! Math Level 3.

Learn what numbers are not divisible by two.

A boy awakens to find that everything around him is odd, from three sleeves on his shirt and five legs on his dog to clocks and calendars with only odd numbers. Includes a three-page "For Creative Minds" section with odd fun facts and number games.

In the sequel to One Odd Day, a boy awakens to find that a strange day includes a trip to the zoo and anything dealing with a number comes out even. Simultaneous.

Meet a pair of playful monster mathematicians who love odd and even numbers. In this enchanting new book, kids will accompany the two monsters as they sort through groups of spooky and unusual odd- and even-numbered things. The text is sure to delight children as it reinforces their reading and math skills. Each 32-page book features controlled text with age-appropriate vocabulary and simple sentence construction. The rhyming text, colorful design, and spooky art will excite and engage emergent readers.

Vols. 5-15 include "Bibliography of child study," by Louis N. Wilson.