La historia de los sistemas numéricos: Valor posicional (The History of Number Systems: Place Value)

What's hidden in the woods? Look closely through three colored transparent sheets to discover hidden secrets. Start with green and nothing moves. As if by magic each sheet shows animals and plants coming to life. Watch nature's surprises emerge in front of your eyes.

Students will learn area and perimeter while engaged in reading about a day in the life of a contractor! This Spanish engaging book uses real-world examples to teach math concepts, and incorporates nonfiction reading to increase vocabulary and comprehension skills. The challenging practice problems, graphs, and sidebars provide many opportunities for students to practice their developing math skills, and apply what they've learned to their daily lives. Essential text features like a glossary, index, and table of contents will increase students' interest level and their interaction with the...

Trabajadores de mi ciudad (Workers in My City) 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 different types of workers, children will be introduced to the people who work hard in the city. This informational text features simple phrases, exact text-to-image relationships, vivid photographs, and large font to encourage students to examine different types of city workers. Aligned with state standards, Trabajadores de mi ciudad (Workers...

¡Entrena tu mente y resuelve más de 70 enigmas! ¿Te gustan los desafíos y crees que puedes resolver cualquier enigma que te pongan delante? HA LLEGADO EL MOMENTO DE DEMOSTRARLO. Abre este libro y enfréntate a juegos de lógica y de memoria, adivinanzas, divertidas actividades y muchos retos para poner a prueba tu cerebro. ¡Encontrarás hasta setenta misterios diferentes! ¿Te atreves con todos? ¡PREPÁRATE PARA ENTRENAR TU MENTE Y REVOLUCIONAR TUS NEURONAS!