"Development of Multimodal Mathematics and Indonesian Language Books for Elementary School Learning in Bandung Barat"

This study aims to (1) develop multimodal mathematics and
Indonesian language books for learning in elementary schools, (2)
determine the feasibility level of multimodal mathematics and
Indonesian books for learning in elementary schools. This study
used the Borg and Gall development model research method which
consisted of (1) preliminary study, (2) initial product development,
(3) expert validation and product revision, (4) limited field trials
and product revision, (5) test try the field and the final product. The
resulting product is an Android-based learning media in the form of
multimodal books for learning mathematics and Indonesian in
elementary schools with the subject, integer arithmetic operations,
mixed integer arithmetic operations, determining mixed arithmetic
operations with whole numbers, looking for main ideas and writing
poetry in elementary schools. Based on the formulation of the
problem, research results, and discussion, the results of this study
can be concluded that (1) the development of Multimodal Book
considered several product characteristics, namely, (a) students play
an active role, (b) precise and consistent language, (c) music
selection, background, buttons, types, colors, attractive letters, (d)
animations and images support elementary school students'
understanding, (2) multimodal Mathematics and Indonesian
Language Books for Elementary School Learning are appropriate to
use and can improve the learning of Mathematics and Indonesian
Language for Elementary School students in West Bandung
Regency.