La historia de los sistemas numéricos: Valor posicional (The History of Number Systems: Place Value)

"Una bomba estalla en la Barcelona de 1938. Un misil destroza un dormitorio en Bagdad. 60 años de diferencia. Distintas guerras. Las mismas víctimas. El mismo exilio. ¿Estamos condenados a repetir la Historia?"

Photographs of nature in all its splendor and children's faces from around the world are paired with a poetic tribute to the Earth's colors, climates, and seasons.

Even as the world changes, skilled labor will always be needed. There's nothing quite like the ability to create things with your skills and your own hands. Carpenters use their skills to build things we use every day, including items such as furniture, buildings, and bridges. They read building plans, choose materials, design, and create. This book teaches kids that to become a carpenter, you have to use a lot more than a hammer and nails; you need your brain too. Photographs and diagrams enable readers to make key connections with the text.

Featuring TIME For Kids content, this Spanish resource, Empujar y jalar (Pushes and Pulls), aligns with NGSS standards to teach young learners about forces and interactions. The engaging photos encourage students to describe what is happening using their own words. This full-color, wordless picture book can be used in the classroom or at home to teach children the difference between pushing and pulling.