This study is a Research and Development (R & D) study and was carried out at
SMP N 1, SMPN 4, and SMPN 12 Surakarta. The procedure used in this research
is adapted from Borg and Galls (1983) simplified by Sugiyono (2013) which
includes: (1) exploration study and (2) development study. Exploration study
involves textbook evaluation toward WERB and need analysis. The data are
collected using questionnaire, interview, and observations. In the development
study, two experts of ELT and layout design were invited to validate the product
based on the criteria given by the researcher. The experts were asked to fill out a
questionnaire. This study is ended by conducting product try out and FGD with
the teacher and students. The draft was tried out three times until it reaches its
feasibility. It was tried out in SMP N 1 Surakarta due to some considerations.
The findings of this research are: (1) WERB for grade VII does not meet five of
the seven criteria proposed by the researcher; and (2) song-based supplementary
materials were developed under the theories of good textbook, good materials, and
good songs, and (3) the song-based supplementary materials are 74% valid
theoretically and 83% valid practically.
Finally, it is hoped that this study can be useful for the English teaching and
learning process, especially for schools applying Curriculum 2013. By identifying
the strengths and weaknesses of WERB, teachers can adjust the teaching materials
and activities. Second, the song-based supplementary materials are expected to be
practically used in the classroom. Then, the supplementary materials are hoped to
provide enjoyment, motivation, and opportunity to the students. Lastly, other
researchers can take into account the findings of this research when conducting
their further research.
Keywords: R & D, Curriculum 2013, WERB, songs, supplementary materials.