Lionel Messi

What causes sound? How does sound travel? Sound begins when matter vibrates. Without this vibration sound could not move and nothing would make any noise. Starting with tiny molecules, this book explains the main concepts of sound and furthers understanding through a series of easy-to-do experiments that will appeal to readers of all ages.

Simple text and photographs show how common shapes can be put together to create new and different ones.

¿Podemos llegar a entender lo que somos, en esta sociedad democrática y laica, sin una clara referencia a la religión? ¿Hasta qué punto la tradición religiosa impone costumbres y modos de vida en la sociedad del siglo XXI? Invitamos al profesorado y a los estudiantes a hurgar en esta influencia desde un punto de vista lúdico y claro; desde elementos tan cercanos y cotidianos al ser humano como la magia, los ritos, la naturaleza, la familia, la sexualidad, la comida, la literatura, la música, la fiesta, el arte, la ciencia y la política. El fin es comprender, reconocer y valorar la...

Learn how to react when you see something wrong or dangerous with this relevant Spanish nonfiction book. Perfect for young readers, the book includes a fiction story related to the topic, a connected civics project, a glossary, useful text features, and engaging sidebars. This 28-page full-color Spanish book explains in an easy-to-understand way that students should talk to a trusted adult about things that make them uncomfortable or scared. It also covers serious subjects such as bullying and “stranger danger”, and includes an extension activity for grade 2. Perfect for the classroom,...