This holiday Season, give the gift of a life-changing experience!

Computer science lessons in Islington

Find your perfect private computer science tutor in Islington.
Learn computer science with our teachers at home or in their studio.

15 computer science teachers in Islington

0 teachers in my wish list

+–

15 computer science teachers in Islington

(1 review)

Paul - Geneva, SwitzerlandRecently active£80

£80I am a teacher of mathematics and I give extra hours for private lessons in science subjects

Trusted teacher: As a math teacher, I offer private lessons in science subjects. My classes are mainly aimed at cycle and college students in Geneva, as well as students from private schools. I can also help people who have already finished their schooling but who need to upgrade their knowledge for professional needs. I am generally available within 3 days of your request and I move around the canton of Geneva using public transport (TPG). Travel costs are included in my rates. For a long-term follow-up, I can give you exercises to do between sessions and correct them at home. I speak and understand English, but my lessons will be mainly in French. I am ready to adapt my teaching according to your specific needs and to provide personalized support to help you progress in scientific subjects. Do not hesitate to contact me if you have additional questions or if you wish to schedule a lesson session. I will be happy to help you in your math learning.

Computer science · Math · Tutoring

Translate this text using Google Translate.

Ron - Paris, FranceRecently active£88

£88Computer Science Tutoring - American Harvard and Yale Educated Tutor

Trusted teacher: I am an Ivy League educated tutor ready to help you learn computer science to achieve higher exam scores, gain admission to top universities and advance your career. I encourage students to explore topics they enjoy and strive to make each lesson entertaining. Learning should be fun, so my approach expands students' horizons, increasing their creativity so they realize their potential. Please click “Request a Booking” to book a lesson.

Computer science · Computer programming · Computer basics

Owusu-Banahene - Aberdeen, United Kingdom£36

£36Computer Programming & Data Structures and Algorithms

Data Structures and Algorithms are the building blocks that make up the solutions to all computational problems. Understanding how to organize data and about fundamental algorithms is essential for solving all computational problems now and in the future. If you truly want to understand computer science, start from here.

Computer science · Algorithms · Computer programming

Ron - Dallas, TX, United StatesRecently active£88

£88Computer Science Tutoring - American Harvard and Yale Educated Tutor

Trusted teacher: I am an Ivy League educated tutor ready to help you learn computer science to achieve higher exam scores, gain admission to top universities or advance your career. I encourage students to explore topics they enjoy and strive to make each lesson entertaining. Learning should be fun, so my approach expands students' horizons, increasing their creativity so they realize their potential. Please click “Request a Booking” to book a lesson.

Computer science · Computer programming · Computer basics

Joseph Unekwuojo - Nigeria£20

£20Python Programming for Beginners- learn how to code with python

Python is a high-level, interpreted programming language known for its readability and simplicity. It supports multiple programming paradigms, including object-oriented, procedural, and functional programming. Python's design emphasizes code readability, using significant indentation and English keywords, making it beginner-friendly. It is dynamically typed and garbage-collected, with a comprehensive standard library often described as "batteries included". Python is widely used in web development, data analysis, artificial intelligence, and more due to its versatility and extensive library support

Computer science · Information technology · Computer programming

(2 reviews)

Younes - Rabat, MoroccoRecently active£10

£10Scratch, Roblox: Code for Fun - A Fun Adventure for Kids and Beginners!

Trusted teacher: With Scratch and Roblox, programming becomes child's play! Learn how to create animations, games, and interactive stories using colorful, easy-to-manipulate blocks of code. No complex language here, just a visual and intuitive approach to make learning as fun as possible. Whether you are a parent wanting to introduce your children to the language of programming or a beginner curious to discover the world of coding, this training is suitable for all ages. No prerequisites necessary, just a dose of curiosity and a desire to have fun while learning. As a trainer, I am committed to creating a caring and creative learning environment. I will use teaching methods adapted to each child, promoting positive interaction and encouraging the free expression of creativity. The goal is to make each lesson an engaging and enriching experience.

Computer science · Computer programming

Translate this text using Google Translate.

Om - Saudi Arabia£17

£17Mastering Logic and Innovation: Mathematics, Computer Science, and Programming for the Future

Unleash your potential in this transformative learning journey where mathematics, computer science, and programming converge to shape the problem-solvers and innovators of tomorrow. This class is designed to build a solid foundation in logical thinking, computational problem-solving, and coding mastery. With a focus on real-world applications, students will explore: Mathematics: Understanding concepts and applying logic to tackle complex problems. Computer Science: Discovering the building blocks of technology, algorithms, and systems. Programming: Learning to code with confidence, creating solutions, and building projects. Whether you're a beginner or looking to deepen your knowledge, this course fosters trust through hands-on practice, clarity, and mentorship, empowering you to excel in academics, careers, and innovation.

Math · Computer science · Computer programming

(1 review)

Azzedine - Paris, FranceRecently active£22

£22Développez votre expertise en Power BI et Business Intelligence : Créez des tableaux de bord percutants et des visualisations de données pro

Trusted teacher: Vous êtes impliqué dans les finances, la gestion, la planification, la gestion de projet, les ressources humaines, ou peut-être même un étudiant ambitieux désireux de perfectionner ses compétences en matière de tableau de bord professionnel. Si vous recherchez une solution qui va au-delà des limitations d'Excel et de PowerPoint, alors vous êtes au bon endroit : permettez moi de vous présenter Power BI. Avec Power BI, je vous propose bien plus qu'un simple outil. C'est une passerelle vers des rapports interactifs, une gestion efficace des données et une analyse avancée. Voici ce que je peux vous offrir : - Création et gestion experte de rapports interactifs. - Transformation et nettoyage minutieux des données pour une précision maximale. - Utilisation des puissantes formules DAX pour une analyse de données avancée. - Création de visualisations personnalisées et de tableaux de bord percutants. - Partage sécurisé et publication de vos rapports pour une collaboration sans heurts. -Automatisation des tâches répétitives avec Power BI & Power Query. Peu importe vos besoins spécifiques - qu'il s'agisse de projets professionnels, d'études ou d'aspirations personnelles - je suis là pour vous offrir une solution sur mesure. Ensemble, nous créerons un programme adapté à vos objectifs, vous guidant à chaque étape de votre parcours d'apprentissage. Que vous soyez un novice cherchant à maîtriser les bases ou un expert désireux d'approfondir vos connaissances en analyse de données, je suis là pour vous fournir l'expertise et le soutien nécessaires pour réussir.

Computer science · Microsoft excel

Marceau - Laval, France£20

£20Computer courses (programming, maintenance, buying guide, etc.) for all levels!

In a world that revolves around mastery of computers and connected devices, it becomes important to know how to be comfortable with them. I offer computer courses on the following topics: - Programming (Python, Scratch, C, etc...) - Maintenance (cleaning, installations, how to avoid viruses, etc.) - Buying guide (laptops and desktops, phones, tablets and other devices) - General use of a computer and related advice

Computer science

Translate this text using Google Translate.

Mathieu - Lyon, France£26

£26Wordpress private lesson - From beginner to expert

Trusted teacher: With 7 years of experience as a developer in a Factory, I now develop Wordpress websites for large groups. In the training program, you will learn to: - Install, configure, and deploy WordPress sites - Develop custom Wordpress themes and plugins - Use powerful tools like ACF Pro, Gravity Forms, WPML, AIOS Security, WP rocket... - Create custom post types and tailor-made taxonomies - Develop pages using the right methods in HTML, CSS, Javascript & PHP - Administer and manage a site database - Contribute to the good natural referencing (SEO) of your site - Use WP-Cli to speed up the maintenance of your sites - Use Docker to containerize your local/prod projects and facilitate their management - Administer your WP sites the right way - And much more... For any questions, you can contact me by PM. See you soon, Matthew

Computer programming · Computer science · Web development

Translate this text using Google Translate.

Muhammad - Pakistan£20

£20A-LEVEL Computer Science (Edexcel, AQA, OCR) with Mathematics tuition

A highly skillful programmer with 7 years of teaching and 10+ years of IT industry experience. Also offering tuition of Mathematics and Further Mathematics with Computer Science. Lessons are interactive and include free practice material for English Calligraphy too.

Computer science · Computer programming · Math

(20 reviews)

Reza - The Hague, Netherlands£26

£26Systematic Reasoning and Logical Thinking for Computer Science

Trusted teacher: You will learn Systematic Reasoning & Logical Thinking which is a requirement for entering Computer Science program in many universities. The book “Delftse Foundations of Computation” especially its second chapter will be the main source of our lesson, but other more in-depth books will be also covered if you want to improve even further on logical thinking. The topics in our lesson include: • Propositional Logic: Logical operators; Precedence rules; Logical equivalence; Implications in English; Exclusive or; Universal operators; Classifying propositions • Boolean Algebra: Substitution laws • Logic Circuits: Logic gates; Combining gates to create circuits; From circuits to propositions; Disjunctive Normal Form; Binary addition. • Predicate Logic: Predicates; Quantifiers; Tarski’s world and formal structures; • Deduction: Valid arguments and proofs; Proofs in predicate logic If you have any additional questions before starting a class, please feel free to ask me. I am here to assist! :)

Logic · Computer science · Reason

Samuel - Massy, France£33

£33Maths Stats or Info, for all levels | Doctoral student GenIA, MVA + ENSAE + BAFA + MP*

Do you want to fill in your gaps or gain intuition on advanced concepts? Do you want to have a framework to ensure your progress? The first session consists of exploring your needs. Then I will put you through a series of sessions organized as follows: - presentation of a key concept with a summary sheet and flashcards if necessary. - exchange on the understanding of the latter. - application exercise - exercise on the previous concepts The important thing is to understand each other and enjoy learning.

Math · Computer science · Statistics

Translate this text using Google Translate.

(20 reviews)

Robert - Uccle, Belgium£33

£33Excel lessons, at your place, at my place or remotely, at your best convenience!

Trusted teacher: As a Franco-Belgian management teacher, I give Excel lessons with passion! Whether remotely or face-to-face, I offer many examples and exercises to accompany you. I travel without problem throughout the region of Brussels and its surroundings, for lessons of at least 2 hours. For France, courses are only given remotely. Here are some key words that will be covered in my classes: Scenario analysis, Year, Rounding, Today, Bdnb, Bdnbval, Bdsum, Search, Column, Copy/paste in values, Copy/paste with transposition, Consolidation, Date, Datedif, Determat, Dollar, Right, Righterg, Equiv, Esterror, Estna, Frequency, Filter (simple and advanced), Format of cells, Left, Large.Value, Printing of documents, Index, Indirect, Inversemat, Day, Weekday, Line, Matrix, Max, Maxa, Max.Si, Min , Mina, Mina.If, Formatting of cells and ranges, Month, Average, Average.If, Nb, Nb.If, Nbval, Naming of cells and ranges, No, Small.value, Product, Productmat, Protection of cells, Lookup (Lookup), Lookupv (VLookup), Lookuph (HLookup), If (If), If.Not.Disp, If.Conditions, Iferror, Sum, Sumproduct, Sum.If, Sum.If.Set, Substitute , Pivot tables, Sorting, Cell locking Do not hesitate to contact me to organize your lessons according to your needs and availability. Together, we will develop your Excel skills in an efficient and personalized way.

Computer science

Translate this text using Google Translate.

Sallah-Eddine - France£31

£31Mathematics - Physics and Computer Basics.

The activity consists of offering support courses in physics, mathematics and computer science to students, adapted to their specific needs. These sessions aim to strengthen their foundations, deepen complex concepts, and develop practical skills. By combining clear explanations, concrete examples and varied exercises, the objective is to make the concepts more accessible, while encouraging intellectual curiosity. This educational approach is based on a personalized approach to maximize student learning and confidence in these subjects.

Math · Physics · Computer science

Translate this text using Google Translate.

(7 reviews)

Wissam - Roissy-en-France, France£30

£30Experienced doctor in computer science offers quality teaching in JAVA, C, Python, WEB, Algorithmics, UML, SQL.

Trusted teacher: I created this course especially for students having difficulty progressing in their computer programming courses/projects. I support students of all university levels. My help covers many others: - Analysis and planning of projects - Technological choice in languages and tools/framework - Algorithmic and programming support - Assistance with debugging and code correction - Data modeling (MCD/MLD diagram, UML diagrams) Why choose my courses? My method is different and more adapted than that of traditional teachers because it is: * Personalized: Adapted to your level and your specific needs. * Interactive: Promotes interaction and visualization of concepts. * Practical: Oriented towards practice with concrete exercises and projects. * Proven: I have already managed to help more than 200 students in the space of 2 years.

Computer programming · Computer science

Translate this text using Google Translate.

Panagiotis - Greece£21

£21WordPress Developer - Information Technology Teacher

Unleash Your Digital Potential!!! Hello. I have been an Information Teacher since 1996. Are you eager to dive into the exciting world of computer science and web development? Whether you're a beginner or looking to enhance your skills, I'm here to guide you. With years of experience in the field, I'm passionate about sharing my knowledge and helping others learn. I offer personalized tutoring sessions tailored to your specific needs and learning style. What I Can Teach You: ⭐ Programming Fundamentals: Master the basics of programming languages like Python, Java, C, and C++ ⭐ Web Development: Build stunning websites using WordPress Why Choose Me? ⭐ Personalized Learning: I tailor my teaching approach to your needs and learning style. ⭐ Practical Experience: I combine theoretical knowledge with hands-on projects to reinforce learning. ⭐ Patient and Supportive: I create a positive and encouraging learning environment. ⭐ Flexible Scheduling: I offer flexible scheduling options to accommodate your busy life. My areas of expertise are: 👉 Content Management System: WordPress, Joomla 👉 Learning Management System: Moodle 👉 Online Journal Manager: OJS (for indexing to PubMed, Google Scholar) 👉 School Management and Organization System: Classter, Epafos 👉 STEM: Arduino, S4A, Scratch, Kodu 👉 Computer Languages: Java, C, C++, Python, C#, Algorithm, Introduction to any language 👉 Program Applications: Microsoft365 - Azure, Microsoft Windows, Microsoft Office 👉 Web Server: cPanel, Plesk, Linux, WHM, PhpMyAdmin 👉 Organize: Asana, Trello, Slack, Git, Active Campaign 👉 Google: AdWords, AdSense, Analytics, G Suite If you have any questions or want to discuss any project, you can contact me by PM. I am looking forward to hearing from you soon. Regards, Panagiotis

Web development · Marketing · Computer science

Ricardo - United States£24

£24Master Coding with a Pro Tutor: C, C++, C#, Python, Java, and More! Unleash Your Programming Potential Today!

Welcome to Personalized Learning Excellence! In our first session, we'll set expectations and explore your preferred learning methods. My tutoring is all about you – flexible, interactive, and tailored to your pace. Engage in dynamic voice chats, where questions are encouraged, and concepts are demystified at your speed. Whether you bring your ongoing projects or pinpoint specific challenges, I'm here to guide you. We'll dive deep, strengthening your reasoning skills as we unravel coding puzzles together. Struggling with a particular topic? Fear not! Share your concerns, and I'll craft targeted activities that not only conquer the hurdle but also illuminate interconnected concepts, ensuring you build a robust foundation. Unlock the potential of ongoing learning in our programming sessions. Each lesson serves as a stepping stone, building upon the last to deepen your coding expertise. Join me for a transformative experience where the cumulative effect of multiple sessions enhances your programming prowess. Let's embark on a series of lessons that delve into the intricacies of coding, turning each session into a valuable building block toward your programming mastery. Let's embark on a learning journey where understanding takes the lead, and your coding proficiency soars to new heights!

Computer programming · Computer science · Software engineering

Farbod - United Kingdom£30

£30Python Programming for beginners

Dive into the exciting world of coding with Python, the perfect programming language for beginners! This course is designed to help you start from scratch, with no prior programming experience required. You’ll learn Python’s basics, including its simple syntax, variables, and data types, in a friendly and easy-to-follow way. As you progress, you'll explore fundamental concepts like loops, conditionals, and basic data structures such as lists and dictionaries. The course focuses on hands-on learning, with practical exercises and fun projects to ensure you build real programming skills. You'll also discover how to write reusable code with functions and gain an understanding of how Python can be applied to solve everyday problems. By the end of this course, you'll be able to write your own Python programs, understand core programming concepts, and feel confident exploring more advanced topics in the future. Whether you want to enhance your career prospects or simply try something new, this course is the perfect place to begin your programming journey.

Python · Computer programming · Computer science

Nestor - Burkina Faso£26

£26Private lessons in computer science, programming, algorithms, mathematics and physics chemistry.

If you want to acquire skills in programming, algorithms or mathematics, I offer private lessons adapted to your needs and level. Whether you are a beginner, intermediate or advanced, my courses are designed to help you master the concepts in a progressive and practical way. I will guide you through practical exercises, projects and theories to develop your skills in computer science and mathematics. You will learn to solve complex problems, program efficiently and understand the basics of algorithms and applied mathematics.

Math · Computer science · Physics

Translate this text using Google Translate.

Shishir - Esch-sur-Alzette, Luxembourg£17

£17Computer Science, Physics and Mathematics for School Student

Hello! I'm a Computer Engineering graduate currently pursuing a Master's degree in Cyber Security and Cyber Defence. My background equips me with a strong foundation in Computer Science, Physics, and Mathematics, which I am passionate about sharing with others. I have a deep understanding of these subjects and the patience to explain complex concepts in a clear and engaging way, making them accessible to school students of various levels. My teaching approach focuses on building problem-solving skills, understanding fundamental principles, and helping students achieve confidence and success in their studies. Whether you're looking to improve your grades, prepare for exams, or gain a deeper understanding of the material, I'm here to help you reach your goals!

Computer science · Science · Computer programming

Benjamin - Geneva, Switzerland£136

£136Maths, Info et IA pour Lycéens et Études Supérieures | Diplômé MIT et Centrale Paris | PhD en IA | 7 ans d’expérience

Votre réussite en mathématiques, informatique, ou intelligence artificielle Besoin d'un coup de pouce dans une de ces matières ? Vous êtes au bon endroit ! Je vous propose des cours particuliers adaptés à votre niveau et vos objectifs, que vous soyez en collège, au lycée, ou que vous prépariez des études supérieures. Mes spécialités : - Fondamentaux des mathématiques : Algèbre, analyse, probabilités, statistiques, géométrie, et arithmétique. - Intelligence artificielle : Data science, machine learning, deep learning, optimisation, Large Language Models - Informatique : algorithmes, base de données, architecture, réseaux, avec python (numpy, pandas, pytorch, django), javascript, C, HTML/CSS, ou React - Physique : mécanique, électronique, thermodynamique, quantique Je comprends vos difficultés : Au fil de mes années d'expérience, j'ai identifié les principales difficultés rencontrées par les élèves en mathématiques : - Manque de bases solides : Je travaille à combler les lacunes pour vous donner une compréhension claire des concepts fondamentaux ainsi que des exemples simples pour développer votre intuition. - Difficulté à appliquer les théories : Je vous propose des exercices pratiques pour vous aider à maîtriser les méthodes de résolution de problèmes. - Peur des mathématiques : Je crée un environnement bienveillant où vous pouvez poser toutes vos questions sans jugement. C'est comme ça qu'on apprend. Ma méthode : -Évaluation personnalisée : Nous commençons par un bilan de vos connaissances et de vos objectifs pour définir un programme sur-mesure. -Enseignement interactif : Je vous propose des cours dynamiques et variés, avec des exercices corrigés en direct, des projets concrets et des mises en situation. - Suivi personnalisé : Vous bénéficiez d'un accompagnement régulier et de supports de cours exclusifs pour vous aider à progresser à votre rythme. Pourquoi me choisir ? - Double expertise : Mon expérience en recherche et dans l'industrie me permet de vous offrir une vision globale des mathématiques et de leurs applications. - Pédagogie innovante : Je vous propose une approche basée sur la résolution de problèmes réels pour rendre les mathématiques plus concrètes et plus intéressantes. - Réseau professionnel : Je peux vous mettre en relation avec des professionnels du secteur pour vous ouvrir de nouvelles perspectives. Les plus de mes cours : - Flexibilité : Les cours se déroulent en ligne ou en présentiel, à votre rythme et à votre convenance. - Personnalisation : Je m'adapte à votre profil et à vos objectifs pour vous garantir une progression optimale. - Résultats : De nombreux élèves ont pu améliorer leurs notes, surmonter leurs blocages et développer une véritable passion pour les mathématiques. Vous souhaitez en savoir plus ? N'hésitez pas à me contacter pour discuter de vos besoins et commencer votre parcours en mathématiques.

Math · Computer science · Physics

Translate this text using Google Translate.

Morgan - Montpellier, France£21

£212nd year student at Epitech, private lessons in NSI, SNT & IT - All levels, at home in Montpellier or by video

As a 2nd year software engineering student at Epitech Montpellier, I offer computer science courses adapted to students of all levels, whether beginners or more advanced. Specializing in cybersecurity and development, I favor a caring and tailor-made approach to simplify technical concepts and allow autonomous progression, at each person's pace. Whether you want to learn how to develop software, create websites or deepen your programming knowledge, I offer personalized courses focused on your needs and objectives. I support you in learning languages such as C, C#, Python, Rust, Ruby, JavaScript (including NodeJS) and SQL, providing my expertise for your personal or school projects. I also offer academic support in SNT and NSI for high school students. Highlights: - Courses tailored to your specific needs (projects, studies, etc.) - Personalized monitoring at each stage of your learning - Support in concrete projects (web development, applications, databases) - Clear and structured methodology for effective learning

Computer science · Computer programming · Computer basics

Translate this text using Google Translate.

Jocelyne - Aalborg, Denmark£55

£55Specialized Subjects (IT, Computer Science, IGCSE Exam Prep)

🌟✨ Discover Your Academic Edge with Jocelyne! ✨🌟 💻📚 Master IT, Computer Science, and IGCSE Subjects with an Expert! With a strong background in IT and Computer Science, I offer engaging and comprehensive lessons for students ranging from kids to high school. Whether you're exploring the basics of programming, tackling complex algorithms, or needing help with school subjects like Math, French, or Spanish, my sessions are designed to make learning effective and enjoyable. 👩‍💻💡 IT/Computer Science Expertise at Your Fingertips! As an IT professional holding a Bachelor's degree in Information Technology (Software Engineering) and currently pursuing a Master's in Computer Science at Aalborg University, I bring real-world experience and deep knowledge of coding languages like Python, C++, HTML, CSS, and JavaScript. My tutoring sessions include hands-on exercises, coding challenges, and problem-solving strategies tailored to your needs. 📘🎯 Personalized, Interactive Tutoring Approach! With my experience teaching Computer Science and IT to various age groups, I know how to tailor lessons that adapt to each student's learning pace. You can expect dynamic discussions, practical projects, and guidance that build both skill and confidence. 🔧🎓 Excel in Exams and Homework! Need support preparing for IGCSE exams or assistance with high school assignments? I’m here to help you succeed in Maths, English, Spanish, and other key subjects. My approach emphasizes clarity, interactive problem-solving, and strategic thinking. 🌱🌍 Join a Community of Learners! I believe in creating an environment that sparks curiosity and encourages growth. My tutoring sessions are structured to engage students, foster critical thinking, and inspire a love for learning. 🧠💪 Empower Your Academic Journey! Together, we will break down complex IT concepts, strengthen your coding skills, and set you on a path to academic success. 📚✨ Ready to advance your skills in IT and beyond? Let’s collaborate to turn your educational goals into accomplishments!

Information technology · Computer science · Tutoring

Kajal - United Kingdom£24

£24Game Development, Computer Science and Programming Fundamentals

Dive into computer science and programming with a hands-on course designed to build a strong foundation in coding, problem-solving, and game development. With over four years of experience teaching students in game development, I’ve crafted this class to introduce core programming concepts through engaging, practical projects. This course covers everything from coding in languages like JavaScript and Python to the essentials of game development with platforms such as Minecraft Education Edition. You’ll learn to create and customize projects, understand essential coding structures, and explore concepts that make coding fun and interactive. My goal is to empower you with skills that aren’t just theoretical but can be applied in real-world applications, from building small games to understanding the principles of larger software development.

Computer science · Computer programming · Game development

Showing results 26 - 50 of 113426 - 50 of 1134

Our students from Islington evaluate their Computer Science teacher.

To ensure the quality of our Computer Science teachers, we ask our students from Islington to review them.
Only reviews of students are published and they are guaranteed by Apprentus. Rated 4.7 out of 5 based on 51 reviews.

Support courses in mathematics intended for high school students, adapted to different sectors: Science Maths, Science Exp, Letters (Lyon)

Azzedine

Azzedine truly stands out as a remarkable instructor! Despite the short notice, he displayed remarkable consideration for our hectic timetable, ensuring to carve out time to equip me with Excel and Power BI skills for the assessment. A heartfelt thank you, Azzedine, for your exceptional teaching methods. I highly endorse Azzedine as your go-to teacher!

Review by IMANE

Private lessons of computer science in other countries