Currently, the demand for IT human resources is increasing worldwide, and from 2020, classes for training programming thinking skills will be compulsory at Japanese elementary schools. As the importance of programming learning is increasing these days, we have developed a system for learning programming in an easy-to-understand manner using an actual programming language for children who are interested in programming in elementary school programming learning. The system is mainly divided into a programming learning part that makes it easier for children to get interested by using optical illusions, and a programming function learning part that uses pictures and animations to convey programming functions in an easy-to-understand manner. As a result of conducting an evaluation experiment of the system, it was found that even children can learn in an easy-to-understand manner.