<p>　Visualization of skills is one of the possible methods for efficient acquisition of skills. The goal of this study is to propose teaching methods for the efficient acquisition of these tasks for basic carpentry skills. For each task, a survey of existing literature is conducted to understand the known tips and tricks. In addition, a questionnaire survey of skilled technicians will be conducted to ascertain the tips and tricks recognized by skilled technicians themselves. Next, movement analysis is conducted on skilled and unskilled workers to ascertain the presence or absence of tricks that have not been described in the literature (tacit knowledge) and that are not recognized by the skilled workers themselves, based on the differences in their movements. Furthermore, we confirm whether the operation tips obtained from the literature survey and the skill questionnaire survey are consistent with the actual motions. Based on the results of the literature survey, skills questionnaire survey, and motion analysis, we create evaluation criteria for the work and visualize the skills. By using these evaluation criteria, we evaluate the movements of unskilled workers and provide them with guidance on how to improve their work in accordance with the actual conditions of each individual worker to improve the efficiency of skill acquisition. </p><p>　As a first step, this paper reports on the results of a literature review and skills questionnaire survey with the aim of identifying the known tricks of chisel blade sharpening operations and the tricks recognized by skilled workers. </p><p>　The results from the literature survey and skills questionnaire survey within the scope of this study are summarized below.</p><p> </p><p>(1) There was no difference between the literature survey and the questionnaire survey in terms of working posture, wrist condition, vertical angle of the chisel to the grinding wheel, working motion, and application of force.</p><p>(2) Although the technical manual described tips for reducing the chisel travel distance, the results of the questionnaire survey showed that skilled workers worked with a larger chisel movement distance.</p><p>(3) The results of the questionnaire survey and the technical manual differed in the tips for applying force. The technical manual stated that blade sharpening was done by applying a large amount of force. On the other hand, in the questionnaire survey, the respondents answered that they sharpened the blade without applying a large amount of force.</p>