Maria Zef

There is a contest at a school to design a new playground. The students use blocks to build their models. As they build, they use three-dimensional shapes. Some students build a train out of blocks for the younger students to play on. Can you guess which three-dimensional shape they use for the train's wheels? Read to find out which design wins.

Reptiles y anfibios is one book in the Spanish-language Gran Atlas de la Ciencia series that covers today's most popular science topics, from digital TV to microchips to touchscreens and beyond. Perennial subjects in earth science, life science, and physical science are all explored in detail. Amazing graphics--more than 1,000 per title--combined with concise summaries help students understand complex subjects. Correlated to the science curriculum in grades 5-9, each title also contains a glossary with full definitions for vocabulary.

¡Tener un hermano o una hermana es fantástico! Menos cuando nos peleamos. De eso trata este cuento. Un álbum ilustrado que nos cuenta con afecto y humor los conflictos, los sentimientos y las aventuras del día a día entre hermanos. Para ayudar a los niños y las niñas a darse cuenta de que tener un hermano o una hermana ¡es muy divertido! It's wonderful to have a brother or sister . . . except for the fighting. And that's what this book is all about. This illustrated volume talks about conflicts between siblings, and it does so with humor and affection. Having a sibling involves daily...

Clues about the lion's physical characteristics, behavior, and habitat lead the reader to guess what animal is being described. Presented in English and Spanish. Presented in English and Spanish.