Arte y cultura: Historias de las constelaciones: Figuras

Bacteria have a slimy reputation. They're too small to see with the human eye, so it's easy to let them slip past unnoticed. But, bacteria are part of our daily lives. In fact, they affect everything from milk to our moods. Get ready to zoom in on the hidden world of bacteria and explore the many ways that bacteria are being used in the modern world. This nonfiction reader seamlessly integrates the teaching of math and reading, and uses real-world examples to teach multiplication of mixed numbers. Text features include images, a glossary, an index, captions, and a table of contents to build...

So you think you're a martial arts master, but do you know the difference between kung fu, kendo, and karate? Students will learn about various martial arts as they practice comparing numbers. This Spanish math book combines math and literacy skills, and uses real-life examples of problem solving to teach subject area content. The full-color images, intriguing sidebars, practice problems, and math diagrams make learning math relevant and fun. Text features include a table of contents, glossary, and index to increase understanding of math and reading concepts. An in-depth problem-solving...

Septiembre de 1973. En Chile se desvanecen las esperanzas de quienes creían que por medios democráticos se podía cuestionar el orden de las cosas. Los cadáveres flotan sobre el río Mapocho, desaparecen ciudadanos, el Estadio Nacional se llena de detenidos. Las imágenes de las calles de Santiago, antes alegres y esperanzadas, son ahora estampa del terror. Los militares lo llenan todo, como un gas denso, letal. Detrás de la estampa de los generales crece el submundo de la tortura. Y es en esos sótanos donde surge de nuevo la esperanza, la ternura y la lucha. De la experiencia vivida...

Books babies can really sink their gums into! Now in bilingual English and Spanish! INDESTRUCTIBLES are built for the way babies "read": with their hands and mouths. INDESTRUCTIBLES won't rip or tear and are 100% washable. They're made for baby to hold, grab, chew, pull, and bend. What green vegetable looks like a tree? Broccoli! Can you find a fruit that's small and yellow? Lemon! Can you pick out two berries so red and sweet? Raspberry and strawberry! Explore a rainbow of delicious foods in a book that's INDESTRUCTIBLE. INDESTRUCTIBLES are printed on lightweight, nontoxic paper material,...

Venerado y vilipendiado a un tiempo, Lobachevski se cierne imponente sobre la matemática del siglo XIX. Al igual que sucede a la mayoría de los mitos, el Lobachevski real está oculto por capas de negligencia y desconocimiento. Su fantástica obra, argumentaban muchos, no era otra cosa que herejía matemática, una senda falsa. Lobachevski es una personalidad abrumadora, un soñador empedernido, un hacedor de mundos imposibles pero reales. Lobachevski es, para muchos, una persona desconocida. Este libro cuenta la historia de un hombre sencillo, pero sagaz, obstinado y profundo desde el...

Everything has a place. Things last longer when we take care of them. Showing respect, responsibility, and stewardship are social skills that even young children can relate to—because they have things they value. In both English and Spanish, this book encourages children to pick up after themselves, put things back where they belong, and ask permission to use things that don't belong to them. It also teaches simple environmental awareness: respecting and taking care of the earth. Includes a special section for adults with discussion questions, games, responsibility role plays, and tips on...