Children are figures that parents do the best for them.The most valuable thing given by parents to children is education.In educating and teaching children, especially elementary students,parents and teachers often find it difficult. Lack of motivation isthe reason children are always first and foremost. To increasetheir motivation, parents and teachers need to understand thepsychology of child development. Elementary school age childrenhave different developmental psychology characteristics. Thesecharacteristics are classified into four points: physical, social,language, and cognitive. By understanding the characteristics ofpsychological development of children, parents and teachers mustteach and educate children in accordance with their developmentand not do things that are unwanted by children. It was provedthat any children of different ages have different developmentalpsychology. By understanding the psychology of their development,parents and teachers can teach and educate them easily knowingwhat can make children motivated and to obtain the best results ineducation, parents and teachers or schools to work together.