Abstract
This paper describes system improvement of P-CUBE and a study conducted on the usefulness of P-CUBE as an education tool for a programming beginner. P-CUBE is a block type programming tool for beginners including visually impaired. We report the improvement of the programming blocks. Then, we conducted an experiment for comparing P-CUBE and conventional programming software for a mobile robot. We recorded the times of referencing the manual book and the time required for programming exercise during the experiment. The result showed that P-CUBE is useful as a programming education tool for beginners.