CTIM: La ciencia de los viajes: Multiplicación (STEM: The Science of Travel: Multiplication)

Simple text and photographs describe the life of Michelle Obama. Michelle Obama became First Lady on January 20, 2009. But before she lived at the White House, she was a powerful lawyer. Learn about her childhood, education, and goals as first lady of the United States.

Aunque los mayas desconocían las aplicaciones de la rueda y no utilizaban los animales ni para el trabajo ni para el transporte, lograron crear una de las civilizaciones más brillantes de la historia. A pesar de que dispusieron de una tecnología muy limitada, colonizaron una parte importante de América Central y construyeron impresionantes monumentos.

For thousands of years, militaries around the world were limited to male soldiers. However, throughout history, brave women have stepped out of the background and onto the battlefield. This biographical text covers the important women who’ve broken ground in the military. Famous historical figures such as Joan of Arc, Clara Barton, and Florence Nightingale are covered in depth, while the stories of modern-day heroes are presented to show how women are still affecting change on the front lines. A comprehensive timeline, fact boxes, and historical and modern images complete this...

Con un sentido de humor este libro ilustrado para niños y jóvenes cuenta la historia sobre la vida de los soldados romanos en el tiempo del emperador Adriano.