Some problems found in Process Evaluation and Learning Outcomes of Biology was the student difficult to understand the subject, the media that used in learning was power point, and the subject unavailability of learning resources that can guide and make students independent study. Thus it necessary to develop of handout based on guided discovery method. The purpose of this research was to develop handout based on guided discovery method on Process Evaluation and Learning Outcomes of Biology subject. This was development research with use 4D model. This research is limited in the Develop phase for know the validity of handout. The instruments is handout validity analysis questionaire. Data analysis use percentage formula. The result show that validity of handout was 89,38 with high valid criteria. It can be concluded that handout based on guided discovery method had been valid.Keywodrs : validity, handout, guided discovery method

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Basic competence in the matter of the circulatory system for senior high school requires students to develop analytical skills, likely problem solving, and develop attitudes and skills competency. Teachers should be able to develop learning materials so that the demands of the curriculum can be achieved. The purpose of this study is to produce a biology learning materials oriented Problem Based Learning model containing character. This was a developmental research which used Plomp model that consisted of three phases including preliminary research, prototyping stage and assessment phase. This research was done until validity on prototyping phase. In preliminary research, conducted analysis of the situation and problems in learning biology, curriculum analysis and students analysis. In prototyping phase has produced learning devices and validated by experts. The results showed that the learning device has a valid. Validity of lesson plan was 88,91 % (very valid). Validity of handout was 83,02 % (very valid). Validity of worksheet student was 83,32% (very valid). Validity of evaluation instrument was 88,53 % (very valid). It can be concluded that the biology learning materials oriented Problem Based Learning model containing character education on the material circulation system for senior high school had been valid.