Open-Ended Online Module to Improve Creative Thinking of Elementary School Students

This study aimed to produce a valid and practical open-ended learning-based online module to improve students' creative thinking skills. This was development research which used a 4-D development model consisting of four stages: to define, design, develop, and disseminate. Data were collected through validity and practicality questionnaires. The module that was designed was validated by three experts, while practicality was obtained from the responses of educators and fourth-grade elementary school students. Based on trying out the module, the following conclusions were obtained: 1) the open-ended learning-based online module that was developed met the valid criteria with an average percentage of 90.62%; 2) the module was very practical with an average percentage of 86.11%; 3) students' creative thinking abilities increased, with a percentage increase of 75%. Based on the results of this study, it can be recommended that the open-ended learning-based online module that was developed can be used as an alternative teaching material in teaching mathematics to improve students' creative thinking skills. Keywords: open-ended learning, online module, mathematics learnin