El Tombuctú

Examines the nature of inclined planes and wedges, how they can reduce the amount of force necessary to perform work, and ways in which they are used.

An introduction to the educational background, equipment, clothing, and various duties of a construction worker.

La solidaridad y la amistad serán las únicas fuerzas capaces de derrotar a los tres gordinflones, glotones sin corazón que oprimen a sus súbditos desde un magnífico palacio, custodiados por el ejército y rodeados de una corte de aduladores. Los tres gordinflones que narra las inverosímiles peripecias de un sabio, un acróbata, una niña y un armero , con sus ya incontables ediciones, se convirtió en el mayor éxito de Yuri Olesha y es hoy un clásico de la literatura infantil soviética de nuestro siglo.

Practice nonstandard measurement at the zoo! This exciting, Spanish-translated title encourages readers to practice measuring their favorite zoo animals, such as elephants, giraffes, pandas, and more. A gorilla weighs the same as three men! When a cheetah runs, its stride length is the length of three men! An elephant weighs the same as three pickup trucks! Vivid images, fun practice questions, early STEM themes, and helpful mathematical diagrams make nonstandard measurement entertaining and easy for children to understand.