Hebei Education Edition, the fourth grade of primary school, downloads Hebei Education Learning app software, which contains art, mathematics, Chinese and English. According to the relevant public information, Ji Jiao Academy official app digital teaching aid platform for primary schools. The platform has English, math, Chinese and other functions, which can help primary school students learn easily and efficiently. Software (software from Chinese mainland and Hongkong, software from Taiwan Province Province) is a series of computer data and instructions organized in a specific order. Generally speaking, software is divided into system software, application software and middleware between them.