Özet:

Fun textbook is able to make students become not bored when participating in learning activities so that learning outcomes can be improved. This research aims to examine the effectiveness of textbook with a brain-based learning approach to students’ problem-solving abilities.Theresearch design used was one-shot case study,with two meetings in two different schools, namely SMPN 1 Tangguland SMPN 5 Jember, Indonesia. Data was obtained from worksheet values of problem-solving ability. The results showed that there was an increase in the average value of students’ problem-solving abilities fromthe schools. The average scoreinSMPN 1 Tanggul at firstmeetingwas 74 and secondmeetingwas 80.7 with good criteria. Furthermore, the average score in SMPN 5 Jember at first meeting was 71.6 and second meetingwas 80.2 with good criteria. So, it can be concluded that the textbook with brain-based learning approaches are effective in improving problem-solving abilities of junior high school students.

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