Advanced English Speaking · 6-Week Extended Conversation

A reintroduction to high school mathematics that starts with nothing more than your memory of middle school math. The course is reorganized according to the causal relationships between concepts rather than the textbook order, so you first understand why each formula is needed. Designed to be completed in 24 weeks with 30 minutes a day, it helps working professionals and adult learners build a solid foundation in the mathematical concepts they encounter at work and in everyday life.

Diagnose cost leakage in a Kubernetes cluster and learn the decision criteria and validation methods needed before introducing automation tools. Validate key cost-saving techniques such as Karpenter, Spot Instances, and Workload Optimization in read-only mode, then practice the entire process of safely applying them to production and rolling them back.

Learn the core principles of writing prompts to get the desired results from AI. Increase the accuracy of your requests through template-based structuring, and master a repeatable prompt design process through step-by-step verification and Git storage. Compare good and bad examples directly to develop request-writing skills that can be applied immediately in real-world work.

Learn step-by-step English expressions actually used in IT practice, from reading official documentation and writing tickets or emails to sharing incident reports and conducting technical interviews. Master practical English that you can apply immediately today with templates and examples extracted from over 20 years of infrastructure operations experience. Learn real-world business English for global collaboration, not just English for exams.

Learn practical techniques to start studying through structure rather than willpower. Master twelve execution design methods along with worksheets to lower the barrier to starting, recover broken focus, and prevent a single day's failure from turning into giving up.

This is a hands-on course for systematically designing and building a multi-account environment based on AWS Organizations. It covers the entire landing zone implementation process, from designing the OU structure and Transit Gateway network architecture to the criteria for choosing between Control Tower and LZA, as well as strategies for incorporating existing accounts. Beyond simple console operations, you will develop the ability to make design decisions suited to your organization’s circumstances and establish an operational governance framework.

Identify the causes of weight-loss failure in environmental structures rather than willpower, and learn realistic weight-loss rates and goal-setting methods. Understand the mechanisms behind weight regain and learn a scientific approach to designing long-term success through sustainable environmental changes.

Learn stress management methodologies proven in 20 years of infrastructure operations. Instead of abstract advice, learn concrete procedures for recovering your mental resilience amid incident response, deadlines, and organizational change using actionable tools and worksheets. Learn how to set and maintain a minimum baseline you can keep, rather than a perfect routine.

This is a practical introductory course for new employees and juniors. You will systematically learn essential business fundamentals, from understanding instructions to reporting and task management. Through hands-on practice, you will master work processes that can be applied immediately.

This is an introductory networking course for non-majors that focuses on understanding the flow of communication through visuals rather than memorizing terminology. Using the layered model as a framework, we follow the entire process of what happens when you enter a URL into the address bar from start to finish, helping you build practical networking intuition that can be applied immediately in the real world.

Systematically master the basics of English speaking by following a 4-week curriculum with precise daily instructions. With 50 core expressions, verb usage, and practical scripts all included in the slides, you can master daily training methods and apply them immediately without the need for a separate textbook. Through a comprehensive learning design spanning from diagnosis to correction, even beginners can gain confidence in basic conversation within just 4 weeks.

To ensure you are no longer afraid of the black screen, we will practice everything from server access to log checking and resource monitoring using only the 21 essential commands. You will start immediately in a web environment, learning everything from how to exit vi to hands-on practical inspection routines.

An introductory course that makes the terminal less intimidating even for Linux beginners, teaching you how to view server logs, find files, and develop practical skills using just cd / ls / grep

Understand the interpretation step that exists between events and emotions, and identify your own patterns of cognitive distortion. Through exercises in naming and rating the intensity of emotions, along with three-column recording, learn practical skills for handling emotions without being overwhelmed by them.

From installing the editor to initial Git configuration, you will personally build the entire development environment from start to finish. This is a practical, hands-on course where you will master terminal commands and folder structure principles, create your first project folder, and complete your first commit. In just one day, you will establish a stable development environment to be used throughout the entire 12-week program.

Analyze why your soccer skills have plateaued and learn how to overcome stagnation by understanding the principles of step-by-step growth. Through actionable routines—15-minute weekday training sessions, setting one goal per match, and writing a three-line post-match review—you can steadily improve your skills without additional time or expense.

Connect the history from Gojoseon to the present day in a single thread through context rather than memorization. Learn how to read historical sources, understand the background of historical stories encountered in the news, dramas, and travel, and reinterpret history from the perspective of working people in this liberal arts course.

This is a practical calculation process that establishes criteria based on the fundamental theorem of polynomials, reconstructs multiplication formulas using area diagrams, and streamlines division through synthetic division. The focus is on developing accurate organization habits and self-checking skills rather than calculation speed. It minimizes boredom and emphasizes connections to subsequent units to maintain learning motivation.

This course is about redesigning the way you work—not just the tools you use. You’ll diagnose three sources of wasted time: delayed starts, rework, and overwork, then build a repeatable work system using templates, standards, and checklists. Through a principles-based approach applicable across roles, you’ll learn how to improve both the speed and quality of your work.

From determining whether a medical consultation is necessary to measuring your resting heart rate and calculating your target heart rate zones, you will learn systematically. You will gain practical knowledge on how to recognize signs to stop training and identify indications of injury, enabling you to continue running safely.

Have you ever seen a 200 million won chatbot being discarded? Between 70% and 85% of AI projects fail to achieve their expected results. In manufacturing, this number hits even harder. A chatbot that looked perfect in a vendor demo starts confidently giving wrong answers once actual field documents are fed into it. Skilled workers with 30 years of experience turn away, saying, "That thing is useless." Systems built with hundreds of millions of won are quietly abandoned. For over 16 years, I have personally planned and executed MES, Smart Factory, and Manufacturing DX/AX projects at Samsung Electronics, Samsung Display, Hyundai Mobis, and LS ELECTRIC. Now, I am designing and building AI chatbots specifically for manufacturing sites. Through this process, I have constantly pondered, "Why do so many manufacturing chatbots fail?" and I have reached the conclusion that the answer lies not in the technology, but in the planning. This course does not teach code. This is not a course for developers who build chatbots. It is for those who must plan the introduction of a chatbot, evaluate vendors, verify performance, and ultimately decide whether to adopt the system. It is designed for planners, managers, and team leaders in the manufacturing field. Without coding, in just 50 minutes, you will be able to: 1. Understand core AI chatbot technologies (RAG, Knowledge Graph) through simple analogies. 2. Immediately use 5 practical questions to distinguish a vendor's true capabilities. 3. Design a 30-day Proof of Concept (POC) using a single-page checklist. 4. Establish strategies to integrate chatbots without resistance from field workers. Why is this course necessary? - While the AI adoption rate in the Korean manufacturing industry remains at 24%, 81% of companies plan to expand their AI investment. This means that while adoption is low, the will to implement it is high. The problem is a lack of planners who know how to execute. - There are courses on Inflearn regarding RAG and chatbots, but they are all aimed at developers. This is the first AI chatbot planning course specifically for non-developers in the manufacturing industry. 50 minutes can prevent a 200 million won mistake.

The Superpower Series precisely identifies grammar points that Korean learners frequently get wrong or find difficult when learning English. It easily explains why such mistakes occur and shows how to correct them, helping learners use English with confidence. Through a step-by-step learning design tailored to learners' levels, from basic to advanced grammar, even learners with no foundation in English can gradually build their skills by following the course.

This course is suitable for those who want to learn simple sentences starting with 'I' and useful expressions.

This course will teach you carefully selected dialogues and expressions from celebrity interviews.

Just make it do it. n8n does the work - Practical workflows to save 1 hour a day with automation tools Get AI tool utilization + prompt engineering + practical automation sense all at once.

This course uses a 3-step structure of Speaking → Writing → Presentation to help you organize your thoughts and create your own story in English. Additionally, we provide small talk, issue discussions, cultural exchange, and even special Singlish lessons.

Systematically master the basics of English speaking by following a 4-week curriculum with precise daily instructions. With 50 core expressions, verb usage, and practical scripts all included in the slides, you can master daily training methods and apply them immediately without the need for a separate textbook. Through a comprehensive learning design spanning from diagnosis to correction, even beginners can gain confidence in basic conversation within just 4 weeks.

This is a practical English grammar course for middle school students who have memorized grammar rules but still struggle with sentence interpretation. Based on the 1316 Grammar Level 2 textbook, students will develop the ability to read and understand English in its natural word order through sentence structure analysis training and direct reading practice, while completing the grammatical foundation necessary for school exams.

Intermediate Financial English consists of a total of 20 lessons.

You can automate repetitive and tedious tasks using GPTs. Even non-developers can automate more complex tasks with GPTs by linking various external automation services!

"Proven bestseller content, now available in video format!" Are you looking for ways to go beyond just being good at English and actually prove your value in the business world? The core content of the book **『Business English That Leads to Success』**, which was recognized for its effectiveness and selected as a "Kyobo Book Centre MD's Choice" immediately upon publication, has been transformed into an online course. Based on the actual textbook, this course features the author—a former English broadcast announcer and international conference MC—who will personally teach you the subtle nuances of business communication. Master the 'sophisticated English' and 'persuasive strategies' that AI translators simply cannot replicate.

Are you struggling with inefficiencies caused by fragmented AI tools and manual tasks? Drawing on the expertise I’ve gained through hands-on experience, I’ll build integrated automation workflows to maximize your productivity.

List of edited 32 English Course MOOC lecture scripts

This is a 4-week program designed to build English speaking circuits through sentence output training rather than word memorization. Through 15 minutes of daily training involving whole-sentence memorization and a 5-step shadowing process, you will develop the ability to speak English with instant reactions without translating in your head. We focus on training mouth muscles and reaction speed rather than just injecting knowledge.

✨ Learning Outcomes ✅ Build confidence in speaking English Move past moments of hesitation and gain the ability to clearly explain your work in English. ✅ Break the ice with key expressions for every situation Learn frequently used expressions for meetings, negotiations, reports, and client interactions, and train to use them instantly. ✅ Master sentence structures for fluent speaking Internalize common patterns and sentence flows so your next sentence follows naturally. ✅ Develop real-world intuition by shadowing scripts Listen and repeat after scripts to learn through simulations of actual business scenarios. ✅ PDF provided for easy review Conveniently review anytime, even during your commute, with PDF materials tailored to each lesson. ✅ Gain confidence in global communication Speak naturally without nerves in meetings with overseas buyers and clients, English-led team meetings, or online conferences. ✅ The perfect training method for self-studying professionals Invest just 5 to 10 minutes a day to master practical English that can be used immediately at work.

Charming & Persuasive Interview English Job interviews are not won by English proficiency alone. From self-introductions to motives for applying, explaining strengths and weaknesses, and situational questions—you need a strategy to answer logically and confidently. In this course, based on questions frequently asked in actual interviews at global and foreign-affiliated companies, you will learn in the following order: ✔ Designing answer structures → ✔ Acquiring key expressions → ✔ Practical role-play training. We help you develop the power to expand your answers with your own unique stories, rather than through simple memorization. Intensive analysis of 30+ essential frequently asked questions Model answers & instant variation training Logical answer frameworks that interviewers love Role-plays that recreate the atmosphere of an actual interview This will be the most practical guide for those preparing for English interviews at foreign-affiliated firms, global companies, and major domestic corporations.

I'll teach you step-by-step how to easily learn real business email English that you can use right away at work!

This course is for those who need systematic learning of business English.

A curriculum with everything for English learning: Speaking, Reading, Writing, Grammar! ChatGPT alone can handle all this.

Learn step-by-step English expressions actually used in IT practice, from reading official documentation and writing tickets or emails to sharing incident reports and conducting technical interviews. Master practical English that you can apply immediately today with templates and examples extracted from over 20 years of infrastructure operations experience. Learn real-world business English for global collaboration, not just English for exams.