La historia de los sistemas numéricos: Valor posicional (The History of Number Systems: Place Value)

Each player has his or her own job in soccer and baseball. They each do their part to contribute to the team. Teamwork is also important outside of sports. We use teamwork in our classroom, in our community, and at home with our family. Readers are presented with different scenarios in which young people use teamwork to achieve a certain goal, like when Nicole's neighbor becomes ill, everyone in the neighborhood takes on a job with the goal of helping the sick neighbor. Each spread contains a color photograph that imparts the importance and rewards of working as a team.

An introduction to what cowboys do, what their day is like, what they wear, what tools they use, and how people can become a cowboy.

No, no estoy loco (ya lo dice mi apellido, "Cuerdo"), pero me encanta hacer locuras y divertirme a todas horas. Si alguien me pregunta cuál es mi asignatura favorita, la respuesta es sencilla: Reírme y hacer tonterías delante de la cámara. Aquí te propongo 50 locuras, de esas supermegalocas, que pueden servirte como reto para superarte o simplemente para divertirte. Pero además aprovecharé para contarte todos mis secretos. ¿Te atreves a seguirme y cumplir todos los retos?

Seventy-two of the best-known stories about God and his people including creation, Noah's ark, Jonah and the big fish, Christmas, Easter, and Jesus' parables and miracles.