Tristán en Yucatán

Need it or want it — what's the difference? Needs are things people cannot live without, such as food, water, and shelter. Let's explore the differences between the concepts of needs and wants! The Me Pregunto (I Wonder) series is perfect for young learners in prekindergarten through grade 2. These 16-page books give readers an accessible introduction to nonfiction reading. Color photographs and fun, factual examples will grab the attention of young readers and help strengthen reading comprehension skills.

Presents the mystery of UFOs, including current theories and famous sightings. Written in English and Spanish.

Advances in science have changed our world, all thanks to the scientists behind important discoveries. Some of the most important discoveries have come from female scientists, who were as unique for their work as they were for being trailblazers in a male-dominated industry. This text offers a biographical treatment of such important scientists as Marie Curie, Rachel Carson, and Jane Goodall, as well as others who have made it possible for women of the future to have a career in science. Age-appropriate text, fact boxes, historical and modern images, and a comprehensive timeline complete the...

Descubre la grandeza del imperio Romano. Con este libro interactivo podrás pasearte por un puerto y una calle de una ciudad del imperio Romano; visitarás unas termas auténticas y asistirás al monumental espectáculo del Coliseo, el mayor anfiteatro de Roma. También aprenderás cómo se organizaban las legiones, y podrás poner a prueba tu capacidad de estratega jugando a la Guerra de las Galias. Incluye cuatro juegos de mesa y todo el material para jugar.--Back cover.