No, No, and No!

Young readers may have heard about the benefits of using and making the most of their resources, but how does that factor into an economic discussion? This thorough discussion defines resources and describes the different types of resources and why some divide them into three categories and others choose four. The book also addresses the concept of scarcity, showing readers how, because all resources have their limits, it is important to use them responsibly and efficiently in a healthy economy.

Celebrating tolerance and acceptance, each title in this constructive and accessible series focuses on the rewards and challenges of having a friend with a disability. Everyday situations are accompanied by informative sidebars that provide details about the highlighted disability.

Roam the North American wilderness with some of our continent's most fascinating canines. Stunning color photos capture these wild animals in their natural surroundings as the text describes each canine's habitat, physical features, and special abilities. Explore the social lives of these captivating creatures, their amazing survival techniques, reproduction, development, and interaction with humans. Discussions of threats to habitat and hunting promote environmental awareness in young readers.

¿Qué se necesitará para enviar personas a Marte en los próximos 25 años? Los estudiantes aprenderán que la resolución de problemas es un componente esencial de la misión planificada de la NASA a Marte. Este libro en español combina habilidades matemáticas y alfabetización, y usa ejemplos prácticos del mundo real de resolución de problemas para enseñar matemáticas, artes del lenguaje y contenido STEM. Los estudiantes aprenderán a resolver problemas mientras leen contenido de gran interés. El glosario, el índice y la tabla de contenido mejorarán la comprensión de los...