Abstract:
This development research has the aim of describing the practicality of the popular scientific book on ethnobotany Myrtaceae Forest Areas with Special Purposes (KHDTK) ULM which is an education and training forest under the institution of Lambung Mangkurat University. This popular scientific book (BIP) was developed through Tessmer's Formative Evaluation, while the stages carried out were conducting a self-evaluation, followed by expert validation, student readability test (one-to-one evaluation), Small Group Test, and Field Test. The results of the practicality test of the contents of the one-to-one evaluation get an average value of 95.51% with very good criteria. Based on the results of the implementation test, the expectation was to get a percentage of 88.89% and the actual 92.22% was expected with very good criteria. the students' s response was expected to get a percentage of 96.80% and the actual 97.40% with very practical criteria. Based on the results of the research developed, it can be stated that the Popular Scientific Books (BIP) developed can be used in improving students' critical thinking skills because the scientific books developed have very practical criteria.
