Abstract :
Specifically, a survey by Indonesia Hottest Insight states that most
smartphone users among children are actively involved in playing games. In
order to make students more interested in learning science lessons, then it
supposed to make an Application Crossword Puzzle that can stimulate and trigger
the students appeal in learning science to support the learning process. This
application is conducted for elementary school especially for sciences. The basic
design of this educational game using logic modeling tools such as creating UML
(Unified Modeling Language). System programing is made into the Android
Studio language program using android platform. The result is a crossword
puzzle application consisting of two parts namely TTS Builder used by the teacher
and TTS Player used by the students. Testing is conducted using questionnaire
and calculated by Likert-scale method with TTS Builder result is 80% which
entered in category ?Strongly Agree?.