La optimización mecánica en el medio acuático

Light can travel faster than anything else in the universe. But what exactly is light, and where does it come from? This nonfiction Spanish book teaches students all about light, and introduces them to important scientific concepts and vocabulary terms like infrared, ultraviolet, photos, and visible spectrum. The intriguing images, detailed diagrams, and stimulating sidebars will keep students connected to the text. The fun lab activity provides a real-world learning experience that supports STEM instruction. Aligned to state and national standards, the leveled text supports differentiation....

A fierce ogre finds that children are becoming too smart for him to catch and eat. Instead, he passes his time writing arithmetic problems to challenge the children.

A Spanish language literature series which enables students to improve proficiencey in Spanish language arts while acquiring skills in English language arts. Uses strategies similar to those in Elements of Literature.

Lin invites her friends to her Japanese teahouse. They have rice, fish, and tea. Lin thanks them for coming and her friends thank her for the tea ceremony.