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This study aims to determine the validity of integrated science student books with the theme of blood fluidusing a type of connected 21st century learning is integrated into the material used books for independent learning in the learning process for students. This research method uses research and development (R&amp;D). The research instrument used was a questionnaire validation assessment sheet. Data analysis is a descriptive analysis with a Likert scale and validity value is calculated by the Aiken formula. The results of the validation analysis of student books developed obtained a validity value of 0.86 with valid criteria. From the result of the analysis it can be concluded that the integrated science student book with the theme of blood fluid using integrated type 21st century learning can be used in the learning process.

journal of physics. conference series

Validity of student book development science integrated with blood fluid theme using integrated learning type connected integrated 21st century learning