It was coordinated by academic staff of the Directorate General for Development

Curriculum ( ± ² ± ³) and published by the Directorate General of Information and Educational Materials ( ± ²'μ¶ ) of the Secretariat of

Basic Education ( · ¶) of the Ministry of Education ( · ¶¹ ) .

Secretary of Public Education

Emilio Chuayffet Chemor

Undersecretary of Basic Education

Alba Martinez Olive

Department of Curriculum Development /

Department of Computer Science and Educational Materials

Balbuena Hugo Corro

General Office for the Coordination of Curriculum Basic Education

Maria Guadalupe Fuentes Cardona

General Office of Educational Materials

Laura Juarez Athié

overall coordination

Balbuena Hugo Corro

academic coordination

Maria Guadalupe Fuentes Cardona

Antonio Blanco Lerin

authors

Laura V. Gonzalez Guerrero

Elia del Carmen Morales Garcia

Pedagogical technical review

Liliana Garcia Sicily

Gabriela Romero Guadalupe Maya

Elizabeth Castillo Silva

Praxedis Montes Nieves

Technical support

Anayte Perez Jimenez

Itzel Vargas Moreno

Editorial coordination

Editorial direction

Patricia Gómez Rivera

publishing care

Alejandro Rodriguez Vazquez

Cover page

Design : Ediciones Acapulco

illustration:

Homeland

Jorge González Camarena

Oil on canvas

Collection: CONALITEG

Photograph: Enrique Bostelmann

First Edition

D.R.

Argentina 28

06020

m · ¸º: 978-607-514-797-0

Printed in Mexico

± m · T » mU³m¼º ²» ½TUmT½ / ¹ » ¾¿mm ± ½ · U À¶ºT½

publishing services

Efren Calleja Macedo

Editorial coordination

Mary Carmen Reyes Lopez

Editorial assistance

Maria Magdalena Diaz Alpizar

Ruby Fernandez Nava

illustration

First quarter : Ricardo Figueroa .

34-36 : Gabriela Gómez Llorente ;

Second two months : Raul Aena.

Ochoa Prado .

Áercer and fifth bimonthly : Heyliana Flores.

101

Llorente ;

Martínez .

Fourth two months : Juan Jose Güitrón .

Art direction and training

Mireya Guerrero Cercós

digital retouching

Ximena Perez Nurseries

Spanish.

degree

It was printed by order of the

National Commission of books Áexto

Free workshops in the month of

xxxx xxxx was Duplicating copies.