Desafíos matemáticos

When the Louisiana Territory was added to the United States in 1803, it about doubled the size of the young nation. It took years to clarify its boundaries and explore every square mile. How this momentous purchase came to be and its implications on the future of the United States are explained in detail in this book. Uncomplicated maps and simple language help developing readers and those in need of review to understand the many changes in this land that started with its purchase in 1803.

365 actividades para jugar sin pantallas en familia: ¡divertirse sin tecnología es posible! Que la infancia pasa demasiado tiempo con las pantallas es cierto, y que existen muchas alternativas, también lo sabemos pero# ¿por dónde empezamos a buscar? Ante la falta de inspiración, este libro propone 365 actividades para jugar sin pantallas con toda la familia. Ideas para disfrutar en diferentes espacios como el hogar, la ciudad y la naturaleza, crear vínculos emocionales positivos, reducir el estrés y acompañar desde la empatía, el amor y respeto.

Learn all about scaly and cold-blooded snakes! Complete with a More Facts section and bolded glossary terms. Young readers will gather basic information about snakes through easy-to-read, simple text alongside colorful full-bleed photographs. Translated by native Spanish speakers. Aligned to Common Core Standards and correlated to state standards. Abdo Kids is a division of ABDO.

If we could take a trip to the center of the Earth, what would we find? In this amazing book readers can do just that with the help of a special ship that can handle the extreme heat and pressure deep beneath Earth’s crust. Digging through a few miles of the crust is just the start of the nearly 4,000-mile journey to Earth’s core. Readers might be surprised to find that not all of the trip is through solid rock, as the intense heat does strange and amazing things to the material that makes up our planet!