La antigua Roma (Ancient Rome)

Wind Power: A waving flag, blowing leaves, a kite soaring through the skyall are moved by wind power. Wind is also our fast-growing source of energy. Find out how wind forms and the different ways we may use it in the future.

¡Tu primer libro para pensar en grande! Es importante entender que cada persona piensa de una forma distinta. ¿Sabes qué decía Descartes sobre la imaginación? A menudo, los más pequeños son quienes primero formulan las grandes preguntas de la humanidad. La serie Grandes ideas para pequeños filósofos toma prestadas las ideas de importantes pensadores para dar respuestas muy sencillas a preguntas muy complicadas.

El libro del pan (The Bread Book) helps Spanish readers strengthen their multiplication, division, and fractions skills while learning interesting facts about bread. Students will learn about wheat grain, nutrition, and bakeries with this nonfiction math reader. This classroom resource includes a glossary, engaging images, mathematical diagrams, and a fun historic timeline of bread to help students develop their math and reading skills.

Aprenda los colores del arco iris siguiendo un texto lírico. (Learn the colors of the rainbow through the lyrical, rhyming text!) "I’ve learned my colors: green, red, and blue, yellow, purple, orange, and now I’m through." From shiny red apples, to purple violets and yellow bumblebees, the high-quality pictures will have children learning colors quickly. Learn simple English words and phrases with the corresponding version Green, Green Froggy.

Understanding light and color might seem impossible, but if readers already know the colors of the rainbow, they're part of the way there. Including the light spectrum, wavelengths, and other key concepts, this book tackles light and color for those falling behind in class because of their reading skills. The main text is written with these struggling readers in mind, accompanied by full-color photographs and diagrams to aid understanding. An extended glossary introduces and explains all the vocabulary readers need to continue learning about light and color.