| dc.description.abstract | This research aims to develop learning instruments of science i.e. textbook, student worksheet, syllabus,
and lesson plan based on local wisdom that can improve critical thinking skills of junior high school students.
Indicators of student's critical thinking skills include interpretation, analysis, evaluation and inference. This
study is a Research and Development by using analysis, desaign, development, implementation and
evaluation (ADDIE) method. Expert validation was conducted with the expert test related to the format,
content/material, and language. The instruments ware used on the collection data are documentations,
validation sheets, observation sheets, and tests. The result of the instrument in the 7th grade of junior high
school at Bustanul Ulum Panti Jember showed that there are the improvement of critical thinking skills
of student based on the data from test and observation. According to indicator of critical thinking skills,
the n-gain value is around 0.47, means moderate interpretation. The conclusions of this research are the
learning instruments of science based on local wisdom which develope in the valid category is quite effective
to improve students' critical thinking skills | en_US |
