La optimización mecánica en el medio acuático

Juneteenth is usually celebrated on June 19. It honors the day in 1865 when Union troops swept into Galveston, Texas, and told the elated slaves there that they were free. This accessible volume delves into the American Civil War, the Emancipation Proclamation, and the events that led to this special holiday for African Americans and everyone who celebrates the end of slavery in the United States. Carefully chosen photographs reflect this special commemoration, both in the past and today.

Usa las matemáticas: Agrúpalo (Use Math: Group It) builds critical literacy skills with this exciting Spanish-translated nonfiction reader. Engage students with fascinating content that will keep them enthralled from the first page to the last. Focusing on grouping, children will look at similarities to figure out which items should be grouped together. This informational text features simple phrases, exact text-to-image relationships, vivid photographs, and large font to encourage students to make connections on what is the same. Aligned with state standards, Usa las matemáticas:...

This Spanish-translated book will be a hit with both thrill seekers and with those who prefer to stay safely on the ground. After an introduction to Newton's three laws of motion, readers learn the mechanics of various amusement park rides including roller coasters, Ferris wheels, merry-go-rounds, and gravity rides. They learn how to measure motion, and how kinetic and potential energy apply to their favorite rides. This 6-Pack includes six copies of this title and a lesson plan.

What has a head, two tails, and shoots across the sky? A comet. Coming from the far edges of the solar system, most comets travel around the Sun, while meteors appear as flashing streaks of light in the night sky. Explore these amazing celestial wonders as they zip through space! This book looks at the difference between comets and meteors and their effects on Earth. The physical characteristics of each are identified in detail. This book won’t come crashing down! It’s filled with fun facts that give additional information on this exciting science topic. This book allows students to use...