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forma evaluativa

El efecto fotoeléctrico

Sencilla explicación interactiva del efecto fotoeléctrico, que permite modificar la frecuencia y la intensidad de la luz incidente.

The passive voice sentences with two objects

Video in wich Novaschool's teacher Patricia Rodríguez, explains the passive voice sentences with two objects Puedes ver más videos en http://videoteca.novasc...

Cómo iniciar una presentación en público

Breve vídeo en el que se explica de forma sencilla el modo en que debemos presentarnos ante la audiencia cuando vamos a realizar una presentación oral.

Unit converter

Online tool to convert standard SI units.

Goya y el neoclasicismo.doc

What are Reversible Reactions? | The Chemistry Journey | The Fuse School

Learn about reversible reactions. Find out where you can find them and what they actually are. At Fuse School, teachers and animators come together to make f...

A14 EnglishRevealed - Cambridge exam SM

Practice Tests for learners preparing for Cambridge First Certificate in English (FCE), Certificate in Advanced English (CAE) and Certificate of Proficiency in English (CPE).

G13 Games & Interactive ExercisesSM

ESL Fun Games and Activities online for Grammar, Vocabulary and Pronunciation Practice, Interactive fun games for ESL classrooms, flash games and quizzes, grammar games, vocabulary games, spelling…

K-12 Worksheets, Lesson Plans, SM

Free printable worksheets, powerpoints, outlines, and more, for teachers and parents in kindergarten through high school. Everything from World History, to Geography, to handwriting practice…