Alexander Graham Bell (Spanish Version)

Sarah es la primera persona en su familia que no ha nacido como esclava. Pero ser libre no significa que Sarah no deba trabajar. Cocina, limpia, recoge algodón, lava la ropa y cuida de niños. Y cuando tiene que trabajar, Sarah se recoge el pelo. Un día, ¡se le empieza a caer! En lugar de darse por vencida, Sarah empieza a probar y mezclar productos y acaba inventando algo mejor que cualquier champú o aceite que haya probado... Gracias a este producto milagroso, decide crear su propia empresa.

Computer science is all around us, at school, at home, and in the community. Anyone can learn computer science, even at the elementary school level. This book delves into essential computer science concepts using age-appropriate language and colorful images. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience. The instructional guide on the inside front and back covers provides: Vocabulary, Background knowledge, Text-dependent questions, Whole class activities, and Independent activities.

From the candiru to the lionfish, there are so many kinds of fish on Earth. While all have different methods of production, the basic life cycle is the same, from egg to spawning swimmers. Readers are introduced to this general cycle as well as the important vocabulary needed to talk about it, such as “fry” and “spawning.” Accessible language and simple diagrams throughout the book provide a way for struggling readers to tackle science curriculum content.

Presenta varios experimentos en cronometría. Para estudiantes de primaria (grados 4-6) y de secundaria (grados 7-9).