This document outlines a lesson plan for a 40-minute English class for 4th year secondary students in Macachín, La Pampa, Argentina. The lesson plan aims to revise the Present Perfect Simple tense through activities from the Macmillan textbook "Phases 3". Students will work in pairs and groups to complete exercises practicing affirmative, negative and interrogative forms of the Present Perfect Simple. They will also do listening activities to develop their speaking and listening skills. The teacher will assess students through oral questioning and checking activity answers.