For a 4-year-old, Wink Math helps children naturally foster mathematical thinking in their daily lives. It is a leading early-math program. Since a 4-year-old's attention span is short, the program provides short and simple activities to systematically and consistently introduce numbers and shapes through fun stories, characters, and games. The difficulty level is adjusted to the child's abilities, giving them a sense of achievement and building confidence. It also provides physical workbooks, and a button on the learning device provides an immediate explanation from a teacher, minimizing the need for parental help. You can choose the level based on your child's age and experience and try a free trial.