This research aims to develop a Banyumasan Culture local content textbook
based on the Independent Learning Flow to improve elementary school
students' creative thinking abilities. This research uses the Borg & Gall model
research and development (R&D) method which includes ten steps: (1)
Identifying potential and problems, (2) Collecting data, (3) Designing the
product, (4) Validating the design, (5) Revising the design , (6) Conduct
product trials, (7) Revise the product, (8) Conduct usage trials, (9) Revise the
product again, and (10) Produce the final product on a larger scale. Local
content textbooks about Banyumasan culture which were designed with an
active, contextual and student-centred learning approach have been declared
valid and suitable for use as teaching materials in class V elementary schools.
The application of Banyumasan regional culture content textbooks has proven
to be effective in improving creative thinking skills. This is proven by the
average score for the control class of 49.12 and the experimental class of
59.46. Furthermore, in calculating significance, the t count was 3.393. This
value is compared with the t table value determined using α = 0.05 and ddk =
116 to obtain a t table value = 1.980. Because the calculated t value (3.393)
is greater than the t table value (1.980), the null hypothesis is rejected, this
shows that there is a significant difference between the control group and the
experimental group. The application of textbooks containing local
Banyumasan culture has a significant effect on the independent learning
process.