Todos los demás padres y todas las demás madres dijeron que sí

Presenta varios experimentos en cronometría. Para estudiantes de primaria (grados 4-6) y de secundaria (grados 7-9).

What will it take to send people to Mars in the next 25 years? Students will learn that problem solving is an essential component of NASA’s planned mission to mars. This Spanish book combines mathematics and literacy skills, and uses practical, real-world examples of problem solving to teach math, language arts, and STEM content. Students will learn problem solving while engaged in reading high-interest content. The glossary, index, and table of contents will further understanding of reading and math concepts, and the full-color images, practice problems, and math graphs and charts make...

Aprenda los colores del arco iris siguiendo un texto lírico. (Learn the colors of the rainbow through the lyrical, rhyming text!) "I’ve learned my colors: green, red, and blue, yellow, purple, orange, and now I’m through." From shiny red apples, to purple violets and yellow bumblebees, the high-quality pictures will have children learning colors quickly. Learn simple English words and phrases with the corresponding version Green, Green Froggy.

A lo largo de dos cartas dirigidas a un juez, un joven y aparentemente exitoso asesor bancario desgrana sus inquietudes y desvelos, la amargura que se oculta tras una fachada de triunfo social. Silva denuncia el sentimiento de estafa vital que asalta a muchas personas víctimas del modo de vida occidental. Una novela aparentemente sencilla, pero de indudable valor testimonial.