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LESSON PLAN SCHOOL : SMP Negeri X Palembang SUBJECT : Mathematics CLASS/SEMESTER : IX/1 TIME ALLOCATION : 1 x 40 minutesA. Standard Competency 1. Understanding similarity in plane figures and using it in problem solvingB. Basic Competency 1.1 To indentify similarity and congruency plane figuresC. Learning Objectives Students will be able to : Determine the definition of similarity Determine the definition of congruency Determine the requirements for similarity Determine the requirements for congruencyD. Learning Material The properties of similar things The properties of congruent thingsE. Learning Method and Model Method : Discussion Question and answer Giving task Approach :PendidikanMatematikaRealistik IndonesiaF. Learning Activity Appearance character : Cooperative 1. Opening a. Apperception Teacher ask the students to remind again about the shapes by playing the video about that b. Motivation Teacher inform the students the advantage of the similar and congruent in daily life c. Goals Teacher tell the students the goal of the similarity and congruency 2. Main Activity a. Exploration Students are grouped of 3or 4
Students are Given many pieces of paper Teacher guide the students to cut the paper into many new things that contains similar or dissimilar and congruent or incongruent Each group discusses the properties of similarity and congruency, from the paper b. Elaboration One group present the result of the discussion and the othe groups give the response From the discussion, students can conclude the properties of similarity and congruency Teacher guide the students to find the requirements of simmilarit and congruency c. Confirmation Students mention some things around them that are similar or dissimilar and congruent or incongruent 3. Closing a. Students are asked to speak obout this lesson b. Students are directed to make a summary c. Students are given homework d. Teacher inform students what will learn in the next meeting G. Learning Source Directorate of junior high school development.Mathematics for Junior High School Year IX Studentt Book. JakartaAcknowledgment Palembang, May 2012Principal of SMP Negeri X Palembang Mathematics TeacherDr. Abecede, S.Pd.,M.Pd. Abduh, S.Pd., M.Ed.NIP. 19581207199811 1 001 NIP. 19920701201012 1 001