| Level 1 |
입문 OPIC NL-NM |
Oxford Phonics 1-5/ Usborne Phonics Reader |
100 Vocabulary Kids Needs to Know 1 |
Family and Friends 1/ English Time 1 |
|
| Level 2 |
Tree or Three Cambridge & 자체 교재 |
100 Vocabulary Kids Needs to Know 2 |
Lets Go 1-3 / Etc. |
| Level 3 |
초급 IELTS 3~4 OPIC NH - IM1 |
Building Vocabulary From Root Words 3 - 5 |
| Level 4 |
| Level 5 |
Lets Go 4-6 / Side by Side 1-3/ Etc. |
| Level 6 |
| Level 7 |
| Level 8 |
중급 IELTS 4.5~5.5 OPIC IM1-IM2 |
Ship or Sheep Cambridge & 자체 교재 |
English Vocabulary in use (Elementary) |
Can You Believe It 1 / Side by Side 4 / Etc. |
Hackers OPIC / OPIC (Beginner & Intermediate) Intensive IELTS |
| Level 9 |
English Vocabulary in use (Pre and Intermediate) |
Can You Believe It 2 / Impact Issue 1 / Etc. |
| Level 10 |
English Vocabulary in use (Upper Intermediate) |
Can You Believe It 3 / Impact Issue 2 / Etc. |
| Level 11 |
고급 IELTS 6~7 OPIC IM3 - IH |
Pronunciation Pairs Cambridge & 자체 교재 |
English Vocabulary in Use (Advanced) |
Talk Talk Talk 1 / Open for Debate1 / Etc. |
OPIC Advanced Collins IELTS Series Market Leader (Elementary) |
| Level 12 |
Talk Talk Tak 2/ Open for Debate2/Etc. |
New OPIC Market Leader (Pre-Intermediate) |