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dc.description.abstract | This community service aims at transferring knowledge and skill about using LEGO in mathematics teaching and learning to mathematics teachers. This conducted into two stages of training, namely: (a) introducing the use of LEGO in mathematics teaching and learning; (b) designing sets of teaching and learning activities using LEGO as the media. The training was conducted at Junior High School or Sekolah Menengah Pertama (SMP) Muhammadiyah Program Khusus Kottabarat, Surakarta, Central Java, Indonesia. Eight mathematics teachers from four schools of Muhammadiyah in Suakarta were participated in this training. The training was conducted through phases: preparation, the implementation, follow-up, and evaluation. The teachers have technically trained with new experiences using LEGO as media in mathematics learning and have developed four sets of learning activities for the topics of sets, proportion, linear equation with one variable, and statistics. Moreover, during the discussion there were feedbacks and suggestions to improve the learning activities designed by the teachers | in_ID |