摘要:The attainment of education in Indonesia is low. It can be seen from themeasurement results of PISA 2013, which measures the ability of Mathematics,Reading, and Science for students in Junior High School education age.Meanwhile, in 2014 the implementation of Curriculum 2013 will be implemented100% in class VII and VIII. How is the readiness of Junior High School teachersin Mathematics, Bahasa Indonesia, and Science regarding to the implementationof Curriculum 2013 in 2014? This study aimed to describe the understandingof junior high school teachers in Mathematics, Bahasa Indonesia, and Scienceto the 2013 curriculum, an innovative learning process, as well as authenticassessment in Semarang city. The study was designed as a descriptive study witha sample of teachers in Mathematics, Bahasa Indonesia, and Science (publicand private) in the Semarang taken proportionally based on the accreditationstatus of A, B, and C. The statistical analysis that will be used is simple statisticequipped with the descriptive analysis of narrative. Research steps to be carriedout are: sampling, research instruments development, data collection, dataanalysis, and results. The results indicated an understanding of 2013 curriculumby Junior High School teachers. It showed good result (score 3.7), understandingof the innovative learning process in using 2013 curriculum by Junior HighSchool teachers showed good result (score 3.9), Junior High School teachersunderstanding of the authentic assessment showed considerable good result (score of 3.6), and Junior High School teachers in Bahasa Indonesia subjects,science and mathematics attitudes toward the implementation of curriculum2013 showed good results. It can be seen from the average score of 3.8 withgood categories on the questionnaire analysis. Most of teachers attitudes towardthe implementation of 2013 curriculum indicated positive respond. On the otherhand, factor of teacher readiness toward the implementation of 2013 curriculumstill needs to be improved.