Data were collected through observations, recordings, interviews. The findings of the
research are (1) The interviews and observations result showed that the internal factors (motivation,
attitudes, and learning strategies) and external factors (family, school, and local community) were the
causes of the communicative competence problem of Sciences teachers in learning and teaching process.
The problems from internal factors were negative attitudes, low motivation and bad strategy in learning
English language complete with the lack of encouragement from family, and more specific from the
school environment and the government that has cause of the problem of communicative competence of
Sciences teachers in using English as a learning language; (2) The solusion is by optimatizing the
support both from internal and eksternal factors, like; improving good attitude towards English, it
requires the awareness process, improving the motivation that needs support from external factors such
as reward and punishment from school management, using the right learing strategy, it is needed the
family as well as the government policy and society surrounding supports.
Keywords: communicative competence, teaching Math and sciences in Englih, internal and external
factors