Design of integrated science student book theme adaptation of the human body to change temperature integrated 21^st century learning using integrated types

The implementation of integrated science learning in junior high schools is still not thematic and integrates 21^st century learning into the learning process. 21^st Century Learning requires students to have literacy skills, knowledge skills, skills and attitudes, and mastery of technology. Increased knowledge, attitudes and skills are caused by the lack of availability of relevant learning resources. One learning resource that can improve 21st-century skills is students' books. The method used in this study is the model of plomp development which consists of three stages, namely preliminary investigation, Prototyping stage, Assessment phase. The research has reached the Prototyping stage and has been tested for validity. The instrument used in this study is a questionnaire consisting of Aspects of content; Construction Aspect; Language aspects; Integrity aspect.