Gives computer lessons in: # software (operating system, Word, Excel, PowerPoint) # and programming (basic notions of algorithms) for beginners young and old. As a computer science teacher for around twenty years, I have been able to acquire and develop several working methods depending on the category and the abilities of the learner.

My goal is to help my students progress and succeed in their exams. So that they can overcome their difficulties, I provide them with effective educational support, on an ad hoc basis or throughout the school year. Concretely, I analyze my student's profile then identify their gaps and/or difficulties to finally implement tailor-made methodologies. My teaching is aimed at students from 6th to 12th grade, all sectors combined. I assure you that with weekly monitoring and the right methods you will make progress!

With over seven years of experience in teaching Computer Science & Information Technology (ICT), I have developed a strong expertise in delivering high-quality education across multiple internationally recognized curricula, including Cambridge IGCSE, GCSE, A-Levels, O-Levels, and Checkpoint. My passion lies in equipping students with coding, cybersecurity, and digital literacy skills, ensuring they are well-prepared for the evolving demands of the digital world. Expertise & Teaching Areas: ✅ Programming & Software Development: Python, Java, C++ ✅ Cybersecurity: Ethical hacking, data protection, network security ✅ Digital Literacy: ICT applications, online safety, cloud computing ✅ Data Science & AI: Data analysis, machine learning fundamentals ✅ Web Development: HTML, CSS, JavaScript Curriculum & Pedagogical Experience: 🔹 Cambridge IGCSE & GCSE ICT & Computer Science – Teaching core and extended syllabi, focusing on programming logic, databases, and networking. 🔹 Cambridge A-Levels & O-Levels Computer Science – Preparing students for advanced computing concepts, problem-solving, and algorithm development. 🔹 Cambridge Checkpoint ICT – Building foundational skills in digital technology and computer applications. Professional Impact: 📌 Mentored students to achieve top grades in Cambridge ICT & Computer Science exams. 📌 Developed interactive lesson plans integrating real-world applications of technology. 📌 Conducted coding boot camps and cybersecurity workshops to enhance practical learning. 📌 Guided students in project-based learning, including app development and website design. With a strong commitment to student-centered learning and technological innovation, I am dedicated to shaping future tech leaders and empowering learners with skills relevant to careers in technology, data science, and software development.

Module 1: SQL Overview Outlining SQL as the cornerstone of database activity Applying the ANSI/ISO standards Describing the fundamental building blocks: tables, columns, primary keys, and foreign keys Module 2: Building the Database Schema - Creating tables and columns Building tables with CREATE TABLE Modifying table structure with ALTER TABLE Adding columns to an existing table Removing tables with DROP TABLE - Protecting data integrity with constraints Guaranteeing uniqueness with primary key constraints Enforcing integrity with foreign key constraints Imposing business rules with check constraints - Improving performance with indexes Expediting data retrieval with indexes Recommending guidelines for index creation Module 3: Manipulating Data - Modifying table contents Adding table rows with INSERT Changing row content with UPDATE Removing rows with DELETE - Applying transactions Controlling transactions with COMMIT and ROLLBACK Deploying BEGIN TRANSACTION in SQL Server Module 4: Working with the SELECT Statement - Writing Single Table queries Retrieving data with SELECT Specifying column expressions Sorting the result with ORDER BY Handling NULL values in expressions - Restricting rows with the WHERE filter Testing for equality or inequality Applying wildcard characters Avoiding NULL value pitfalls Module 5: Querying Multiple Tables - Applying the ANSI/ISO standard join syntax Matching related rows with INNER JOIN Including nonmatched rows with OUTER JOIN Creating a Cartesian product with CROSS JOIN - Combining results with set operators Stacking results with UNION Identifying matching rows with INTERSECT Utilizing EXCEPT to find nonmatching rows Module 6: Employing Functions in Data Retrieval - Processing data with row functions Conditional formatting with the CASE expression Utilizing the CASE expression to simulate IF tests Dealing with NULL values - Performing analysis with aggregate functions Summarizing data using SUM, AVG and COUNT Finding the highest/lowest values with MAX and MIN Defining the summary level with GROUP BY Applying filter conditions with HAVING Module 7: Constructing Nested Queries - Applying subqueries in filter conditions Creating correlated vs. noncorrelated subqueries Testing the existence of rows - Including subqueries in expressions Placing subqueries in the column list Creating complex expressions containing subqueries Handling subqueries that return no rows Module 8: Developing In-Line and Stored Views - Breaking down complex problems Selecting data from a query result set Using subqueries in the FROM clause - Creating views in a database Building reusable code Creating updateable vs. non-updateable views

Start your journey into the world of Python programming with this hands-on, beginner-friendly course and also for expert level. Whether you're completely new to coding or looking to expand your skills, this course will guide you through the core concepts of Python — from variables and data types to control structures, functions, and lists. As you build a strong foundation in programming, you'll also dive into the powerful data analysis capabilities of Python using popular libraries like Pandas and NumPy . Learn how to clean, process, and analyze real-world data sets to extract meaningful insights. Next, bring your data to life with stunning visualizations using Matplotlib and Seaborn , two of the most widely used data visualization libraries in Python. Finally, take your skills to the next level by building your own web applications using either Flask or Django — two of Python’s most popular web frameworks. By the end of this course, you’ll have a well-rounded understanding of Python programming, data manipulation, visualization, and web development — empowering you to create real-world projects and pursue further specializations.

I specialize in teaching web technology and data analysis for students at all levels, covering and i can learn children from 6 to 18 years old web technology( HTML, CSS, JavaScript, C#, ASP.NET MVC, API development, database management) data analysis( Excel, Power BI, SQL, and Python). My goal is to make complex concepts accessible and engaging, helping students build both foundational skills and industry-relevant expertise. I provide structured lessons with hands-on projects and assign exercises after each session to reinforce learning. Progress is closely monitored, with regular feedback provided to keep students motivated and improving. Whether you're a beginner eager to build your first web page, a student looking to analyze data effectively, or a budding programmer ready to create dynamic applications, my courses are tailored to your pace and goals. You'll develop real-world skills and gain confidence in a supportive learning environment designed to challenge without overwhelming.

Master Python with Personalized Courses Discover the art of programming with Python courses tailor-made to meet your specific needs. Whether you are a beginner, intermediate or professional, my lessons are suitable for all levels. Why Choose My Courses? Personalized Teaching Approach: Each course is tailored to your skill level and individual goals. Practical Experience: Learn by doing with real-world projects that build your understanding and skills. Ongoing Support: Get unlimited email support for any questions you have between sessions. As a Python expert, I have a passion for teaching and sharing my knowledge. My goal is to guide you effectively in your learning journey. Book Your First Lesson: Start your journey to Python mastery now by booking your first lesson. Whether you aspire to enter the development field or hone your existing skills, these courses are designed for you.

Are you ready to unlock the immense potential of Artificial Intelligence (AI) tools (ChatGPT, DallE, invideo etc.)? Join our tutoring class, "AI Tools Mastery: Harness the Power of Artificial Intelligence Tools," and dive deep into the world of AI technologies that are shaping the future to stay ahead of your competition. In today's fast-paced digital landscape, AI tools are revolutionizing how we approach problems, analyze data, and make decisions. This course is your key to mastering these AI tools and staying at the forefront of technological advancement. Throughout this course, we'll focus exclusively on AI tools, equipping you with the knowledge and practical skills needed to leverage these technologies effectively. Just as a photographer relies on Photoshop to enhance images, you'll learn to harness the power of AI tools to supercharge your projects and remain relevant in a rapidly evolving world.

I am a PhD student and currently living here in Kypseli, I am offering my services for teaching. Reach out if you are looking for a teacher! If you want to learn computer skills in a freidnly manner, write to me and we can schedule a demo class.

Cybersecurity involves the practice of protecting computer systems, networks, and data from unauthorized access, damage, or disruption. I specialised in cybersecurity with over 5years experience, education and relevant certifications. I will take you through the technical skills to develop to stay safe in your day-to-day activities. This program is targeted at families, non-IT and non-technical professionals

Are you curious about AI and ChatGPT, but don't know where to start? In this accessible and practical workshop you will get to know artificial intelligence in a clear way - without difficult terms and with plenty of room to practice yourself. You will learn what AI is, where you will encounter it without noticing, and how you can use tools such as ChatGPT for writing or rewriting texts, composing emails and other daily tasks. We will mainly work practically, in a small group, so that there is plenty of room for questions. Whether you have little experience with technology or find AI exciting: after this workshop you will better understand what AI is, you will know what you can do with it and you will be able to get started with it yourself - in a way that suits you.

With over 15 years of international experience in sales and business development across top tech companies like, I bring a practical, results-driven approach to teaching. I’ve consistently exceeded multi-million revenue targets, built client relationships across EMEA, and trained teams on strategic selling. As a tutor, I translate this experience into clear, actionable lessons that empower learners to master sales techniques and thrive in real-world business environments.

Master IT auditing with this hands-on class! Learn to assess security controls, detect vulnerabilities, review compliance, and document real-world audit findings using top frameworks like NIST, ISO, and SOC. Perfect for career-ready learners! This course goes beyond theory,it's built for action. You’ll engage in mock audit walkthroughs, control testing exercises, and third-party risk assessments that reflect the expectations of real-world employers. Whether you’re transitioning into IT Audit, upgrading your cybersecurity skill set, or preparing for client-facing GRC roles, this class offers clear, structured guidance. You’ll gain audit-ready templates, interview-prep case studies, and mentorship from an industry expert who’s led complex audits across enterprise environments. By the end, you’ll be confident, audit-literate, and career-positioned.

Let me introduce myself: I'm an experienced Network and Telecommunications Engineer. I'm currently studying for a Master's degree in Cybersecurity at the University of Barcelona. Online classes for all levels and ages. All your questions will be answered, whether you're curious about something or assigned work from your school.

📘 You learn with me some Mathematical Concepts 1. Functions + Definition and interpretation of a function + Study of variations (increasing/decreasing) + Derivative of a function + Solving equations and inequalities Common functions: affine, polynomial, exponential, logarithm, etc. 2. Analysis: Differentiation and Integration Derivative of a function: f′(x) Antiderivatives and integrals: ∫f(x)dx 3. Algebra Equations and inequalities of the first and second degree Systems of equations 4. Geometry in space Spatial orientation: coordinates of points, vectors, lines, planes Scalar product. 5. Numerical Sequences + Arithmetic and Geometric Sequences + Limits of Sequences 6. Complex Numbers (Specialized or depending on the program) + Complex Numbers: z=a+ib + Algebraic and Trigonometric Forms + Solving Equations in C 6. Algorithms + Variables, loops (for, while), conditionals (if, else) + Functions and recursion + Iterating over arrays/lists + Searching algorithms (linear search, binary search) + Sorting algorithms (selection sort, insertion sort)