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Eco is a 4 level modular course (A1, A2, B1, B2) each one covering 40 to 60 hours of classroom instruction. The student texts are organized into eight units, each of which consists of; an introduction to the concepts being taught, development of listening comprehension, pronunciation and spelling, presentation and practice exercises for the new vocabulary, grammar exercises, development communication skills. Additional resources are available for free for both teachers and students. The teachers guide includes the textbook, answers to all exercises, and suggestions to ensure best usage of the materials.

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