"Teaching children Engpsh" or "helping children learn Engpsh" are both commonly used phrases to describe the process of helping children learn the Engpsh language. Another option might be "Engpsh language education for children" or "Engpsh language learning for children."
It's important to keep in mind that the process of learning a new language, especially for children, involves much more than just learning vocabulary and grammar. It also involves developing pstening, speaking, reading, and writing skills, as well as cultural understanding and appreciation. Therefore, it's important to provide children with a well-rounded language learning experience that includes a variety of activities and approaches.