<![CDATA[Learning in early childhood education (PAUD) in many units still focuses on basic literacy without integrating basic coding concepts. This limitation is caused by the lack of appropriate learning media. This study aims to develop, validate, and evaluate the feasibility of algorithm-based coding worksheets to improve symbol literacy and computational thinking skills in early childhood. This study uses the Research and Development (R&D) method with the 4D model. The research subjects consisted of 3 expert validators (2 material experts and 1 media expert), 2 PAUD teachers as practitioners, and 10 children aged 4–6 years as limited trial users. Data were collected through questionnaires, observations, and documentation with instruments covering aspects of content validity, media design, and practicality. Data analysis was carried out using quantitative descriptive techniques with a Likert scale and qualitative analysis of expert input. The results showed that the worksheet obtained a validity value of 95.8% from media experts, 91.6% from material experts, and a practicality value of 96.4% with a very feasible category. The developed worksheets are effective in helping children understand basic coding concepts such as sequence, pattern, repetition, decomposition, and the encode-decode process. The conclusions of this study indicate that the developed coding worksheets are valid and practical as an innovative learning medium to stimulate symbolic literacy and computational thinking. The implication of this study is that computer-free coding worksheets can be an effective and accessible alternative learning medium in early childhood education.]]>
