Educational game design using the 7 steps for designing serious games method (Case study: Mathematical subject on comparison and scale material for 7th grade junior high school)

National educational system was riddled with many problems both in terms of internal and external to date. Internal issues referring to the constraints of some national education standards among which the standard process, teachers and education personnel standards, and competency standards. The standard process has a problem that improvement mindset has not done well in the learning process of the learning method centered on the teacher (teacher centered) into a student-centered teaching methods (student oriented)^[17]. Standard teachers and education personnel have a problem of low professionalism of teachers in Indonesia proved in 2010 the number of teachers who meet the qualification standards nationally only 43%^[2]-Standardized competence of graduates have problems one of which is evidenced by the results of the 2012 survey data by the Program for International Student Assessment (PISA), which mentions the mathematical ability of students in Indonesia was ranked 64 out of 65 countries^[1]. In addition to internal problems are also external problems in the organization of education as the result of research that says that as many as 600 students in grade eight and nine on average spend 9 hours per week playing games keseluruhan. Playing games have proven to deliver negative correlation with academic achievement of students, if played in a long period of time^[5]. In this digital era, it is appropriate that educational games have a more comprehensive capabilities for responding the internal and external challenges of the world of education. Therefore the authors undertake the design and construction of educational games vidyanusa mission 19^th to study the materials of scale and comparison using The 7 Steps for Designing Serious Games method to resolve some of the problems of national educational standards. This method begins with the analysis specifications pedagogical objectives to be achieved, the selection of model type game that will be used, the adjustment of pedagogical scenario with games scenario are fun, the search of software components that can be used, description detail of scenarios, the quality control of pedagogical and determination of specifications for subcontractors and game design tools^[10].