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Tercer volumen de «Lo que no se enseña de Matemáticas y deberías saber». En este volumen se desarrolla y demuestra algo que hasta ahora se ha enseñado por intuición, adoctrinando para resolver los problemas por la cuenta de la vieja: la regla de tres. Se prueba que las propiedades enseñadas sobre al regla de tres son realmente hipótesis mal enunciadas, demostrando las propiedades correctas reformulándolas. Los conceptos enseñados de «regla de tres simple y compuesta, directa e inversa» han sido corregidos y correctamente explicados. Las matemáticas no son más que una serie de...

Aprende Espanol de una forma muy practica y concisa. El libro contiene textos y ejercicios, contrucción de frases y explica la gramática en forma clara y a mena. (Third improved edition) The target this book is that tourists and students can communicate with nationals citizen in free way, without needing to hire a translator. But there are other reasons why you should learn languages, for example, today; the universities provide their students exchanges of pre-and post grades in abroad. Grammar is explained in English.

The book proposes a school where the students and their development is the priority. The teachers’ main task is to assist students in a personalised manner and to help them in their process of growth and development. The entire school should be guidance oriented. It should provide an environment where relationships among all staff members take place, from the security guard to the principal. In this environment, students will find the help and resources needed by them to develop their autonomy and build their future. The book suggests a credible program that can be recreated in other...

"Part of an excellent collected work on the history of education in Argentina. This, the last volume, examines competing ideologies in education during the period between the fall of Perón and the return of democracy after the last military dictatorship"--Handbook of Latin American Studies, v. 58.