Primeros Ejercicios de Calculo

This award-winning beginner's guide to the natural world of fish from the creators of the About... series was named an "NSTA Recommends" book. Noted educator and author Cathryn Sill uses simple, easy-to-understand language to teach children the basic characteristics of what fish are, how they swim, breathe, and reproduce, and explains the different ways they protect themselves from predators. With beautifully detailed, realistic paintings, noted wildlife illustrator John Sill introduces readers to the diversity of the fish population, from an Arctic char to a porcupine fish. An afterword...

Ésta es una historia sobre las necesidades sensoriales y de cómo algunos niños y niñas experimentan su mundo, contada desde la perspectiva de una niña. La vibración en sus pies cuando corre, el tan-tan-tan de su cuchara en la mesa a la hora de comer, el chorrito de agua fría corriendo por sus manos--- esas son las cosas que calman su cosquilleo. ¡Este libro es para cualquier persona que alguna vez haya sentido la necesidad de moverse, pisotear, o recibir un apretón! "Meneos, Pisotones y Apretones valida de manera juguetona las experiencias sensoriales únicas de los niños y niñas,...

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

In 1789, George Washington became the first president of the United States. With over 100 black-and- white illustrations, the fascinating story of "the father of our country" comes to life in Spanish - revealing the real man, not just the face on the dollar bill!