ABSTRACT
Based on preliminary studies it was found that the learning tools of Basic and Power Measurement for scientific-based learning that are suitable for use in Vocational High School (VHS) are not available. This research aims to develop a scientific learning tool for Basic and Power Measurement at VHS by adopting the steps of discovery learning. This research used the mixed method with sequential exploratory design and stages conducted through the procedural approach of Research and Development (R&D) presented by Borg and Gall. The research produced 128 pages of teaching material equipped with learning media. Based on the results obtained, it was shown that the product was effective in improving student learning outcomes.
