El sueño de Otto

Today is Mauro's Birthday. Everything is ready for the celebration; his friends have a lot of presents for him.

A pond is a very unique habitat, home to a variety of freshwater plants, animals, and microscopic creatures. Readers discover how all of these living things are connected through food chains, as they learn fascinating facts about life in a pond. Detailed photographs give readers and up-close look at frogs, algae, and other creatures found in a pond. Fact boxes compliment the enlightening text, which explores important science concepts, including conservation and life cycles. Readers can see how these pond food chains come together as they explore an informative pond food web.

Pets! We love them, and we take good care of them. Learn all about what Fish need to be happy and healthy pets. ¡Las mascotas! Las amamos y las cuidamos mucho. Aprende todo sobre qué necesitan los Peces para estar felices y ser mascotas saludables.

Learn the history of number systems with this engaging Spanish book! This text combines mathematics and literacy skills, and uses practical, real-world examples of problem solving to teach math and language arts content. Students will learn place value while reading about the number systems of the Egyptians and Romans, and also learn important vocabulary terms like cuneiform, binary systems, roman numerals, and more! The full-color images, math charts, and practice problems make learning math easy and fun. The table of contents, glossary, and index will further understanding of math and...