Lesson 1: Keep your body warm and don't overdo it
(Grammar) -do, -do not, -don't, -ge, ㅅ irregular
(Function) Permit, Prohibit, Describe Symptom

Lesson 2: The lost items have similar shapes, but different colors.
(Grammar) -deunde (contrast), -eun, ㅎirregular, which, than (more)
(Function) Describe, compare, find objects

3. Exchange and refund. I would like to exchange for something a little higher.
(Grammar) -deyo, -eoya must be/have to be, -eo shall I give you?, -eo looks
(Function) Obligation? Speaking of obligation, guessing, exchanging an item, getting a refund

Lesson 4 Weather and Seasons The weather is getting hotter and it will rain more.
(Grammar) like/like, -어려게, -어지다, -기전, -을까?, (probably) -을게
(Function) Speaking in chronological order, speaking in decision, speaking by guessing, making analogies

Lesson 5: Could you tell me the date you would like to change your reservation?
(Grammar) -I wish it were, -is/are/are, -is it?, outside
(Function) Saying your wishes, making modifications, speaking in a compartment, making a reservation/changing a reservation

Lesson 6 I want to open a bank account and check card.
(Grammar) -to try, -after, whether, (no matter) -even, -cannot
(Function) Speaking the order of time, expressing impossibilities

Lesson 7 Part-time job Have you ever worked part-time?
(Grammar) -was when, -is ever/is not, -get-, because, -gi because
(Function) Talking about experience, giving reasons, finding a part-time job

Lesson 8 Finding a House I think a boarding house would be good
(Grammar) -go is, -eun is, -i/ga is, -gi is, -neun seems to be
(Function) Talking about progress, speaking based on evidence, finding a home

Open Korean is a free Korean language education program for foreigners residing in Korea that has been run since 2005 by volunteers who are Korean language education experts at the Korea Foundation Cultural Center and sponsored by the Korea Foundation.
(The number of cumulative students per year is about 2,000, and foreigners from about 80 countries are attending, and currently, about 250 foreigners are taking classes once a week for 2 hours from Korean language class to advanced class.) This is a textbook that has been used directly for the past 7 years, and it has been revised and edited by carefully selecting high-frequency grammar for beginner and intermediate levels and reinforcing language functions by area according to the level of Korean language education.
The course is structured to naturally connect the language areas of speaking, writing, listening, and reading, and to foster deeper language skills and fluency through broadening expressions and winging.
By publishing a teacher's guide to help teachers use the book more effectively, we have expanded the scope of the teacher's resource collection, which was previously limited to partial publication, to include beginner and intermediate levels.
We also strived to perfect the Korean language textbook to satisfy both students and teachers by including friendly lesson plans, detailed class progress methods, practical field experiences, and a variety of classroom activities and worksheets.
We also put a lot of effort into making it more approachable for students by providing a wealth of beautiful illustrations to clearly differentiate it from existing textbooks.

characteristic
1.
Classroom activities for each grammar item are organized with separate activity sheets (Korean Classroom Peek, Activity sheets for Beginner and Intermediate levels are available for separate purchase)
2.
A valuable resource that provides a glimpse into students' reactions and class atmosphere by presenting actual class journal examples.
3.
It provides detailed explanations of the essential grammar of the Korean language, including the introduction, presentation, practice, and application of grammar.