A soccer skill improvement routine to break through a plateau

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.

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.

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 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.

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 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

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.

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.

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.

This step-by-step program mixes walking and running to help your body adapt safely, aiming to complete a 10km run after 12 weeks. You will systematically learn proper posture, breathing techniques, injury prevention, and recovery management, building a sustainable running habit with 40-minute training sessions three times a week.

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.

We will teach you how to become a great top 0.1% star with the Super Self-Management MBA that will help you survive and thrive in the era of hyper-large AI.

No longer living as “me, myself” in “other people’s subjectivity”. Survive as “me”! Get rid of socially fixed frames and bubbles, and learn the know + how to develop and design your own experience and career to create a personal brand.

A reading method that absorbs into your head with just one look? We will tell you a story that changes your life with just one book.

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.

Through this course, students can improve their Go reading skills and apply them when playing actual Go games.

A practical publishing strategy revealed by an author and editor. From publishing proposal to contract and monetization—how to change your career with one print book.

We have selected essential topics that must be understood in the flow of economics, structured to be easily and clearly comprehensible together with economics expert Kim Gwang-seok. This enables understanding of the structure connecting from small-scale regional economies to global economic systems, and allows for realistic learning of the essence of the economic field.

Don't know a thing about tarot cards? That's fine. Learn easily and enjoyably, your first introductory tarot course!

"Simply knowing technology well does not make you a good sales engineer." Understanding customers’ problems, connecting technology to business value, and exerting influence between sales and development are the core responsibilities of a sales engineer. In this course, drawing on more than 20 years of B2B software presales experience, I will systematically share practical know-how on customer meetings, requirements analysis, demos, PoCs, proposal strategies, and internal collaboration. Learn the work frameworks and mindset of a sales engineer that you can apply immediately in practice.

Should new recruits only do well what their team leader or senior colleagues tell them to?! Now, no! This lecture is necessary for organizations that want new recruits who understand 'work' and 'results' from a business perspective, and for rookie office workers who want to grow into leaders recognized by their team and company! If you are a new recruit who wants to work skillfully like a senior and lead tasks and get ahead like a CEO, then 'Career Branding'! A new recruit competency improvement course that brings about changes in the thoughts and actions of those just starting their careers!

Are you tired of writing without results? Achieve real outcomes in your work and content planning through the logical writing methods I have personally experienced!

The difference between those who work well and those who do not is determined not by "ability," but by their "way of communicating." This course focuses on a practical conversation structure that connects generational understanding, emotions, collaboration, and feedback to show how to turn organizational communication into performance. Beyond simple speaking skills, you will master the "language of work" that builds relationships, facilitates collaboration, and produces results. Through this lecture, we invite you to personally experience the communication styles of those whose work always flows smoothly. Point 1. The communication structure of high performers who understand relationships and emotions - Identify why conversations get tangled by understanding generations, emotions, and relationship flows - Build a fundamental framework for communication through people-centered principles Point 2. Practical conversation techniques that drive collaboration and performance - A selection of immediately applicable practical communication skills, including questioning, requesting, and feedback - Learn speaking styles that connect to performance without interrupting collaboration or workflow Point 3. Trust-based communication methods that increase the speed of work - Understand how to accelerate work through quick responses and clear delivery - Internalize communication habits that build trust and boost collaboration efficiency

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.

If you want to grow as a developer who is recognized by your colleagues, team, and even the company, and can work with more responsibility and influence? In this lecture, I will share with you my know-how on growth.

This course will cover the methods that enabled a developer from a bootcamp background to achieve hackathon wins, course creation, and junior mentoring within a single year.

Many office workers are failing to properly protect their hard-earned money because they miss out on refunds they didn't know about or pay more in taxes than necessary. Studying taxes is not about memorizing difficult legal knowledge. It is the most practical form of financial management—understanding your pay stub and protecting your own money. In this lecture, we will cover the core tax strategies for office workers to actually save money and build assets, ranging from year-end tax adjustments to income management and tax-saving accounts. Point 1. How to protect your salary through year-end tax adjustments - Understanding tax-free items and deduction structures in your pay stub - Year-end tax adjustment strategies to increase refunds, such as personal and housing deductions Point 2. Tax strategies for managing income safely - Understanding the tax structure you need to know when additional income occurs - How to legally save on taxes when filing global income tax Point 3. "Tax-tech" strategies to build assets using taxes - How to utilize tax-saving accounts like ISA, IRP, and pension savings - Investment tax management strategies to increase after-tax returns

The recent surge in rental fraud (Jeonse fraud) is a realistic problem that can happen to anyone. In particular, those with little experience in rental contracts, such as young professionals entering society or newlyweds, often find it difficult to recognize fraudulent tactics, leading to damages ranging from tens of millions to hundreds of millions of won. Based on firsthand experience of falling victim to rental fraud, this class provides practical methods to prevent fraud and covers essential checklists from before the contract is signed until after it is finalized. Rather than simply listing scattered online information or legal jargon, this course uses real-life cases to explain in a simple and specific manner which parts are easy to miss, the correct order of verification, and which red flags should prompt you to stop a contract immediately.