It is a mobile program of 1 English Challenge among the Core Study Series provided by Seoil English.
As for the textbook,'Student Book + Workbook + Multimedia Program (for PC) + Mobile APP' is provided.
This app is used after entering the ID and password provided by the school.
The English Challenge is a textbook for elementary 4th-5th graders, and middle 1st graders.

This Core Study Series, aimed at elementary and lower junior high school students, is based on language acquisition theory, and at the beginner level, listening and speaking are about 70%. 50% of the weight was placed on speaking and 50% of reading and writing. At the advanced level, while maintaining the listening and speaking training, gradually increasing the weight of reading and writing training by placing 60-70% of weight on reading and writing training. While acquiring skills in a balanced way, we focused on developing practical use and communicative competence rather than understanding usage in learning vocabulary and syntax.

In this Core Series, the contents of the textbook are produced as a multimedia program to suit the stage of developmental psychology of adolescents, and the effect of learning can be maximized by conducting intensive training using the eyes, ears, mouth, and brain at the same time.

After completing the 30 books in this Core Book Series, you will master most of the vocabulary, grammatical structure, and communicative functions of the second and third grade level in the introductory English course.

The Multimedia Program of this Core Series is designed to arouse the interest of students by making Talk, Song (Chant), and Pattern in vivid animation.

You can intensively train Listening and Speaking with the patented Seoil System's infinite repetitive learning function.

This Core Study Series does not use any Korean language for all learning contents such as conversation, vocabulary, syntax, pronunciation, etc., but through the process of listening to the sound and repetitive learning with the mouth while viewing with the eyes and image-making through pictures or animations. It uses a unique teaching method that trains you to form English thinking.