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ABSTRACT Rescha: Development Biology Learning Equipment by Constructivist Oriented and Character Nuanced on Blood Circulation System Material for Senior High Schools Grade XI. Thesis. Biological Education, Postgraduate Program of Padang State University (2013). One of the approach to help students to involve students actively construct knowledge through meaningful experiences, social interaction, and the real fact is learning with learning equipment by constructivist oriented and character nuanced. But in reality, in SMAN 1 Sawahlunto, SMAN 8 Padang, and SMA dr. M. Natsir in sub-province of Solok, Biology learning still emphasize at cognate domain, students only studying product, memorizing concept, law and theory, learning character was teacher centered, orienting at test, learn only submitting items as product, and not yet developed cultural nation’s character values. The purpose of this research was to develop a Biology learning equipment by constructivist oriented and character nuanced, consist of the syllabus, lesson plans, handouts, students’ worksheets, and classroom-based assessment on blood circulation system materials for high school grade XI that were valid, practical, and effective. This is a research and development by using four-D models. The data collection was done through validating by five experts and two practitioners then it was tried out in eleventh grade of natural science at SMAN 1 Sawahlunto to know the practicality and effectiveness of the equipment. Based on the result of this research, it was known that Biology learning equipment by constructivist oriented and character nuanced on blood circulation system material for senior high schools grade XI were categorized valid. The average of validation from syllabus dan lesson plan is 3 and 3,24. Validation’s average of handout from expert validator and education practitioner is 3,21 and 3,5. Then, validation’s average of student’s worksheet from expert validator and education practitioner is 3,25 and 3,5. Validation’s value of paper and pen assessment, product assessment, self assessment, performance assessment, and attitude assessment, are 3,76, 3,84, 3,79, 3,86, and 3,87. From limitted try out, it was known that it’s application was categorized practical and very effective to increase students’s activities and result studies. Learning assessment showed the completeness was higher than minimal standard, and categorized as good. Character assessment showed that from 13 characters observed, generally, growth level of student’s character behavior was categorized as the beginning development.
