Faizah, S.S. Miswadi, S. Haryani
This study aimed to analyze learning tools validity, soft skills improvement, concept understanding and students’ responses. The metode of this research is Research and Development (R & D). The results show that problem-based learning tools categorized valid with an average score of 3,57, the improvement of students’ soft skills was available with N-Gain of 0.46, the number of 72, 72% students whom achieving mastery of soft skills with a high or very high criteria, the concept understanding of students also increased by providing N-Gain of 0.69, the number of 84.85% students whom achieving score completeness KKM ≥ 76, this study also obtained student positive responses. © 2013 Prodi Pendidikan IPA FMIPA UNNES Semarang.
Universitas Nahdlatul Ulama Cirebon, Indonesia; Universitas Negeri Semarang, Indonesia
