摘要：Th aim thi stud ar t produc Learnin Trajector us Ruma Lima a context.Th approac use i Pendidika Matematik Realisti Indonesi(PMRI).Th subject wer 2 student o clas sevent o SMP Keluang.Thi stud wa usin desig researc approach,th hypothetica Learnin Trajector wa develope fro se o activitie usin Ruma Lima a context.I theor th developmen carrie throug th interactiv proces compris o preliminar design,teachin experimen an restrospectiv analysi t contribut t Loca Instructio Theor(LIT t supportin student lear o angle.Dat collecte b makin vide recordin abou inciden i th class,collectin student worksheet,givin pretes an postest,interviewin students.Th designe HL compare wit Actua Learnin Trajector(ALT durin teachin experimen t analyz whethe th student learne o didn'lear fro wha w ha designe i th instructiona sequence.Retrospectiv analysi o teachin experimen showe tha b usin Ruma Lima a contex ca suppor student learnin o angle.
关键词：Angle;PMRI;Desig Research;Ruma Lima a th Context
