facebook
favorite button
1/5
super instructor icon
Professeur fiable
Ce professeur a un délai et un taux de réponse très élevé, démontrant un service de qualité et sa fidélité envers ses élèves.
member since icon
Depuis juillet 2021
Professeur depuis juillet 2021
Exam preparation for all international benchmark exams of IB, IGCSE and AP Biology
course price icon
Àpd 197.88 CNY /h
arrow icon
I have been teaching for 20 years. I believe that practice with right tutor will provide best Marks at exams. I can also help you in your school exams. No matter what background knowledge you have, we will be successful in these challenging exams with the right method. IGCSE, IB , AP and A level biology are the major exam boards that I can help and facilitate to get a high marks
Informations supplémentaires
Assignments, past exam paper questions, practice mock exams and tests will be given weekly
Lieu
location type icon
En ligne depuis Turquie
Présentation
-I like teaching biology. I will make challenging topics easier to understand. Due to exposure of too much international exam content (IB, IGCSE, AP, SAT II, etc), I will guide and help in each topic that you want to learn
-Weekly Test and Assignments are given
-Monthly Report will be sent to parents
-Face2Face or online
Education
Middle East Teachnical University, Ankara TURKEY /BS/Biology Education
Middle East Teachnical University, Ankara TURKEY /MS with Thesis/Secondary Science and Math Education
Expérience / Qualifications
I worked in top private schools in Turkey following IGCSE, IB, Oxford AQA, MYP etc
I even help for internal assessment, lab experiments and extended essays.
Age
Enfants (7-12 ans)
Adolescents (13-17 ans)
Adultes (18-64 ans)
Seniors (65+ ans)
Niveau du Cours
Débutant
Intermédiaire
Avancé
Durée
60 minutes
Enseigné en
anglais
turc
Disponibilité semaine type
(GMT -04:00)
New York
at teacher icon
Cours par webcam
Mon
Tue
Wed
Thu
Fri
Sat
Sun
00-04
04-08
08-12
12-16
16-20
20-24
Making science fun and easier for the child to understand is important. Keep them on track for exams and feel ready for new topics. Relating math and science to daily life and making connections are key principles to learn. I have a lot documentation and experience in this field.
Lire la suite
-International Exam Preparation For IGCSE ,SAT ,IB and AP in Biology
-Providing tutoring and teaching services for biology in all certificates and systems in addition to many of the college's curriculums
-Weekly Test and Assignments
-Monthly Report will be sent to parents
Lire la suite
Cours Similaires
arrow icon previousarrow icon next
verified badge
Physics and chemistry are the gateway to understanding all sciences, as a science student you will need to be able to sort through the many complex features to become a true student scientist with a critical and curious mind. That's why I designed this course to help students prepare for their exams and the next school year to fill in the gaps they have in math and science.
I would like to inform you that I am a young researcher and I can also help you to acquire basic knowledge of Microsoft Office and other essential software for your career.
verified badge
Souhaitez-vous adopter une nouvelle posture au quotidien et mettre en place des stratégies d’apprentissage efficaces ?
Avez-vous déjà pensé à vous faire accompagner par un coach durant votre formation ?
Enseignante en math-sciences depuis plus de 25 ans et formatrice dans des modules de communication et de travail en équipes, j’associe à ma pédagogie les outils du coaching, de la PNL, du brain gym et le mindmapping.
La relation enseignant/enseigné a un impact important sur la réussite scolaire. Dans cette optique, avoir une attitude coach pour moi, c’est accompagner l’élève ou l’étudiant, là où il se trouve, dans la bienveillance et sans jugement.
Les séances de coaching peuvent aider à améliorer l’apprentissage en faisant prendre conscience à l’apprenant de son propre mode de fonctionnement, de ses petites voix intérieures qui le sabotent et de ses peurs. Cette prise de conscience s’inscrit dans la voie du changement durable....
Les outils d’accompagnement permettent également à mieux gérer son temps et son stress.
Pour qui ?
Les jeunes nécessitant d’une remise à niveau ou d’un soutien méthodologique.
Les adultes en reprise de formation dans le cadre d’une recherche de qualification ou d’une reconversion professionnelle.
Séances en présentiel ou par webcam. Contactez-moi !
verified badge
I am miss Patricia, I am native, French-speaking (🇫🇷) having as an activity outside of my studies tutoring. I teach the French language (FLE) and the English language (ESL). I also have skills to teach learners to repeat in math (📐📏✏🔢), chemistry (👩‍🔬🧑‍🔬🧪📗), biology 🫁🫀🦷🥼🔬 (and/or natural sciences 🌏🍀🪰🪱🦠 🥽), French (🇫🇷) and English (🇬🇧).
If you are a parent and you are actively looking for a tutor to supervise your children (help with homework or rehearsals), I am at your disposal. Having a great experience that I acquired by babysitting and serving in youth groups, I was able to immerse myself in the psychology of young people and children and I have this ability to touch their difficulties. . Learning is not the army or a chore, in addition to being an excellent tutor for them, I can also be this benevolent company that will allow them to unleash their potential.
My announcement concerns learners of the French-speaking system (French, Belgian, Canadian) and the bilingual system (French, English).
Through the first course, I would highlight my skills mentioned above and if you are won over, we can continue together.

Level concerned by my ad:

- primary level (any subject)

- middle school level (English, French, mathematics), biology (and/or natural sciences), chemistry

- high school level (English, biology)


If you are interested in this ad, comment with a plus, or write me a private message and together let's make your children better at school.


Miss Patricia,
verified badge
Become a part of the bioinformatics revolution!

This bioinformatics course will equip you with the skills and knowledge necessary to harness the power of computing for biology. You will learn to:

Analyze biological data: DNA, RNA sequences, etc.
Develop bioinformatics tools: Python scripts, analysis pipelines, etc.
Understand the challenges of bioinformatics: personalized medicine, biotechnology, etc.
This course is aimed at:

Students in biology, biochemistry, computer science, or related disciplines
Research professionals in biology and health
Anyone curious to discover the applications of computer science to biology
Course program:

Introduction to bioinformatics: definition, objectives, applications
Molecular and computational biology: genomic sequences, transcriptomics, microbiome
Bioinformatics tools: Galaxy, qiime, dada2, mothur, quast, spades, bowtie, samtools.....
Applied bioinformatics: personalized medicine, biotechnology, structural bioinformatics
Teaching methods:

Theorical class
Practical work
Mini Projects
At the end of this course, you will be able to:

Analyze complex biological data
Develop bioinformatics tools to answer biological questions
Understand the ethical and societal issues of bioinformatics
Feel free to contact me for more information.
verified badge
As a Franco-Belgian teacher, I offer private lessons in physics, chemistry and biology for secondary and higher levels. I specialize in secondary level up to 5th year Belgian.

I travel, if necessary, to your home in the Brussels region as well as in Walloon and Flemish Brabant, with a minimum course duration of 2 hours. With extensive experience, I offer numerous exercises to consolidate knowledge. Distance learning is also possible via platforms such as Skype, Facebook, etc. For students in France, lessons are done exclusively remotely.

Do not hesitate to contact me to organize your lessons according to your needs and availability. I am here to help you strengthen your skills in these subjects in an effective and personalized way. Courses tailored to your needs will allow you to progress quickly.
verified badge
As an experienced teacher with a PhD in mechanical engineering, I offer specialized courses to master essential concepts in mechanical engineering:

Modules taught:
🔹 Continuous Media Mechanics (MMC): Introduction and in-depth study of the basics of continuous media mechanics, behavior laws, and practical applications.
🔹 Elasticity: Study of deformations and stresses in elastic solids, theory and resolution of complex problems.
🔹 Strength of Materials (RDM): Analysis and calculation of stresses, deformations, and dimensioning of mechanical structures.

Who are these courses for?
🎓 Students in preparatory classes, engineering schools, or technical faculties.
🏗️ Professionals wishing to strengthen their knowledge in mechanical engineering.

Why choose my courses?
✔️ Courses adapted to beginner to advanced levels.
✔️ Teaching based on concrete examples and typical exercises.
✔️ Personalized support for your projects, exams or competitions.
✔️ Clear and detailed course materials provided in each session.

Course organization:

Format: Individual or group lessons.
Modality: Online or in person (depending on your location).
Duration: Flexible depending on your objectives.
verified badge
A knowledgeable lawyer and legal services provider

Hello, dear customer. Meet your legal professional. I'm currently a practicing attorney, skilled writer, and online researcher who delivers exactly what I promise. The legal profession, research, and writing have been my passions since the early years of my legal career, and through learning and experience, I have sufficiently honed my skills in these areas. In addition, I am currently pursuing my PHD., a degree that I believe is an added advantage to my expertise. Do not hesitate to entrust me with your task and expect the best from my services. Thank you in advance, and stay safe.
In this lesson I will guide you through the process of conducting legal research and writing legal documents.

- Legal Research: The tutor will explain how to conduct legal research, which is a critical skill for anyone involved in the legal field. This includes understanding how to use legal databases, how to find and interpret statutes, regulations, and case law, and how to stay updated with recent legal developments. The tutor will also cover how to analyze legal problems and apply the law to specific scenarios.

- Legal Writing: The tutor will then move on to legal writing, another essential skill for legal professionals. This involves learning how to write various legal documents such as briefs, memos, contracts, and legal opinions. The tutor will provide tips on how to write clearly and persuasively, how to structure your arguments, and how to cite legal authorities correctly.

- Practical Exercises: Throughout the lesson, the tutor will provide practical exercises to help you apply what you've learned. This might involve researching a particular legal issue or drafting a legal document.
- Feedback and Improvement: The tutor will provide feedback on your work, helping you to improve your legal research and writing skills. They will point out any areas of weakness and provide suggestions for improvement.

This lesson is designed for anyone interested in law, whether you're a law student, a legal professional looking to brush up on your skills, or someone considering a career in law. It provides a solid foundation in legal research and writing, two of the most important skills for any legal professional.
verified badge
Are you looking for help with mathematics?

To prepare for an exam, accomplish a coursework, a bachelor's or master's thesis?

I studied mathematics and physics (PhD) and have been teaching for 10 years. I have already
helped more than 150 students succeed.

I make the lecture material more understandable using concrete examples. I correct papers, explain the best methods to solve tasks or put up my own exercices to achieve the necessary level.

I would be happy to help you write extensive papers.

I am an affable character and am completely committed to one goal: the success of the
student.
verified badge
préparation du cours 1 et 2 degré secondaire en sciences et en mathématiques
Préparation de Ce1D sciences et mathématiques
Soutien scolaire
Mise a niveau
Renforcement
Dépassement
Remediation
.........................
Cours par blocus
Exercices concrètes
Pédagogie sur mesure pour tous publics
.......
verified badge
With a background in Civil Engineering, I offer private tutoring in mathematics and science for all primary and secondary school levels. Each student has specific needs, which is why I adopt a flexible and supportive approach. My goal is to help students understand concepts in depth, build confidence, and progress effectively. During the lesson, we begin with a discussion to identify difficulties and define appropriate objectives together. Next, a theoretical review consolidates the foundations before moving on to progressive exercises, encouraging the practical application of the concepts covered. Throughout the session, I encourage students to rephrase concepts and place them in a logical context to solidify their learning. Finally, we take a few minutes to review the session and write a summary of the key points to facilitate revision and memorization. I offer online courses and emphasize the value of online teaching by using interactive tools, screen sharing, and adapted materials to ensure the same clear and effective support as in face-to-face sessions. In addition to the lessons, I offer personalized follow-up with the option of reviewing exercises remotely between classes. Whether you need regular support or occasional help before an exam, I would be delighted to help you progress in a motivating and supportive environment!
verified badge
This course is designed for anyone interested in learning data science using Python. It provides a hands-on introduction to fundamental data analysis tools such as NumPy, pandas, matplotlib, and seaborn. You'll learn how to manipulate datasets, create visualizations, and lay the foundations for statistical analysis and machine learning.

The course combines theory and practical exercises for effective, practical progress. No prior programming experience is necessary: we'll start with the basics to build solid, usable skills quickly.
verified badge
I’m a fourth-year Ph.D. student in natural science at Eötvös Loránd University. With a master's degree in Immunology and a degree in general biology, I would be happy to help high school or university students make biology an enjoyable subject to learn.
verified badge
I offer private tutoring at home for all levels, from primary school to high school. A typical session consists of the following steps:

-Reviewing the student's course materials, with answers to any questions.
-Correction of teacher's exercises or specific exercises depending on the student's difficulties.
-Preparation for possible student assessments using formative assessments that I have developed, targeting the student's difficulties.

Everything is tailored to each student using fun and engaging methods. Learning while having fun is not impossible!
verified badge
Private tutoring is offered in mathematics, physics, and computer science. The teaching is based on an interactive and simplified pedagogical approach, promoting understanding, autonomy, and academic success for students through individualized support and effective learning methods.
verified badge
Are you stuck on an exercise, has a concept been piling up for several weeks, or do you simply want to get ahead to approach the year with peace of mind? I'm here for that.

I offer private lessons in mathematics, physics-chemistry and engineering sciences, from middle school to high school, all streams included (General, STI2D, STL).

My approach is simple: I adapt to your pace and your weaknesses, not the other way around. Each session begins by identifying what's really holding you back, then we rebuild the basics together, step by step, until the logic is clear and you can apply it on your own.

Whether it's to catch up, prepare for a test, get a better grade on the baccalaureate exam, or strengthen your problem-solving method, I make sure that every hour spent together is a truly useful hour.

- Clear explanation of concepts, without unnecessary jargon
- Exercises targeted at your weaknesses
- Reasoning methods reproducible in the exam
- Personalized follow-up from one session to the next
- Available in person or via videoconference
message icon
Contacter Oguz
repeat students icon
Le premier cours est couvert par notre Garantie Le-Bon-Prof
Cours Similaires
arrow icon previousarrow icon next
verified badge
Physics and chemistry are the gateway to understanding all sciences, as a science student you will need to be able to sort through the many complex features to become a true student scientist with a critical and curious mind. That's why I designed this course to help students prepare for their exams and the next school year to fill in the gaps they have in math and science.
I would like to inform you that I am a young researcher and I can also help you to acquire basic knowledge of Microsoft Office and other essential software for your career.
verified badge
Souhaitez-vous adopter une nouvelle posture au quotidien et mettre en place des stratégies d’apprentissage efficaces ?
Avez-vous déjà pensé à vous faire accompagner par un coach durant votre formation ?
Enseignante en math-sciences depuis plus de 25 ans et formatrice dans des modules de communication et de travail en équipes, j’associe à ma pédagogie les outils du coaching, de la PNL, du brain gym et le mindmapping.
La relation enseignant/enseigné a un impact important sur la réussite scolaire. Dans cette optique, avoir une attitude coach pour moi, c’est accompagner l’élève ou l’étudiant, là où il se trouve, dans la bienveillance et sans jugement.
Les séances de coaching peuvent aider à améliorer l’apprentissage en faisant prendre conscience à l’apprenant de son propre mode de fonctionnement, de ses petites voix intérieures qui le sabotent et de ses peurs. Cette prise de conscience s’inscrit dans la voie du changement durable....
Les outils d’accompagnement permettent également à mieux gérer son temps et son stress.
Pour qui ?
Les jeunes nécessitant d’une remise à niveau ou d’un soutien méthodologique.
Les adultes en reprise de formation dans le cadre d’une recherche de qualification ou d’une reconversion professionnelle.
Séances en présentiel ou par webcam. Contactez-moi !
verified badge
I am miss Patricia, I am native, French-speaking (🇫🇷) having as an activity outside of my studies tutoring. I teach the French language (FLE) and the English language (ESL). I also have skills to teach learners to repeat in math (📐📏✏🔢), chemistry (👩‍🔬🧑‍🔬🧪📗), biology 🫁🫀🦷🥼🔬 (and/or natural sciences 🌏🍀🪰🪱🦠 🥽), French (🇫🇷) and English (🇬🇧).
If you are a parent and you are actively looking for a tutor to supervise your children (help with homework or rehearsals), I am at your disposal. Having a great experience that I acquired by babysitting and serving in youth groups, I was able to immerse myself in the psychology of young people and children and I have this ability to touch their difficulties. . Learning is not the army or a chore, in addition to being an excellent tutor for them, I can also be this benevolent company that will allow them to unleash their potential.
My announcement concerns learners of the French-speaking system (French, Belgian, Canadian) and the bilingual system (French, English).
Through the first course, I would highlight my skills mentioned above and if you are won over, we can continue together.

Level concerned by my ad:

- primary level (any subject)

- middle school level (English, French, mathematics), biology (and/or natural sciences), chemistry

- high school level (English, biology)


If you are interested in this ad, comment with a plus, or write me a private message and together let's make your children better at school.


Miss Patricia,
verified badge
Become a part of the bioinformatics revolution!

This bioinformatics course will equip you with the skills and knowledge necessary to harness the power of computing for biology. You will learn to:

Analyze biological data: DNA, RNA sequences, etc.
Develop bioinformatics tools: Python scripts, analysis pipelines, etc.
Understand the challenges of bioinformatics: personalized medicine, biotechnology, etc.
This course is aimed at:

Students in biology, biochemistry, computer science, or related disciplines
Research professionals in biology and health
Anyone curious to discover the applications of computer science to biology
Course program:

Introduction to bioinformatics: definition, objectives, applications
Molecular and computational biology: genomic sequences, transcriptomics, microbiome
Bioinformatics tools: Galaxy, qiime, dada2, mothur, quast, spades, bowtie, samtools.....
Applied bioinformatics: personalized medicine, biotechnology, structural bioinformatics
Teaching methods:

Theorical class
Practical work
Mini Projects
At the end of this course, you will be able to:

Analyze complex biological data
Develop bioinformatics tools to answer biological questions
Understand the ethical and societal issues of bioinformatics
Feel free to contact me for more information.
verified badge
As a Franco-Belgian teacher, I offer private lessons in physics, chemistry and biology for secondary and higher levels. I specialize in secondary level up to 5th year Belgian.

I travel, if necessary, to your home in the Brussels region as well as in Walloon and Flemish Brabant, with a minimum course duration of 2 hours. With extensive experience, I offer numerous exercises to consolidate knowledge. Distance learning is also possible via platforms such as Skype, Facebook, etc. For students in France, lessons are done exclusively remotely.

Do not hesitate to contact me to organize your lessons according to your needs and availability. I am here to help you strengthen your skills in these subjects in an effective and personalized way. Courses tailored to your needs will allow you to progress quickly.
verified badge
As an experienced teacher with a PhD in mechanical engineering, I offer specialized courses to master essential concepts in mechanical engineering:

Modules taught:
🔹 Continuous Media Mechanics (MMC): Introduction and in-depth study of the basics of continuous media mechanics, behavior laws, and practical applications.
🔹 Elasticity: Study of deformations and stresses in elastic solids, theory and resolution of complex problems.
🔹 Strength of Materials (RDM): Analysis and calculation of stresses, deformations, and dimensioning of mechanical structures.

Who are these courses for?
🎓 Students in preparatory classes, engineering schools, or technical faculties.
🏗️ Professionals wishing to strengthen their knowledge in mechanical engineering.

Why choose my courses?
✔️ Courses adapted to beginner to advanced levels.
✔️ Teaching based on concrete examples and typical exercises.
✔️ Personalized support for your projects, exams or competitions.
✔️ Clear and detailed course materials provided in each session.

Course organization:

Format: Individual or group lessons.
Modality: Online or in person (depending on your location).
Duration: Flexible depending on your objectives.
verified badge
A knowledgeable lawyer and legal services provider

Hello, dear customer. Meet your legal professional. I'm currently a practicing attorney, skilled writer, and online researcher who delivers exactly what I promise. The legal profession, research, and writing have been my passions since the early years of my legal career, and through learning and experience, I have sufficiently honed my skills in these areas. In addition, I am currently pursuing my PHD., a degree that I believe is an added advantage to my expertise. Do not hesitate to entrust me with your task and expect the best from my services. Thank you in advance, and stay safe.
In this lesson I will guide you through the process of conducting legal research and writing legal documents.

- Legal Research: The tutor will explain how to conduct legal research, which is a critical skill for anyone involved in the legal field. This includes understanding how to use legal databases, how to find and interpret statutes, regulations, and case law, and how to stay updated with recent legal developments. The tutor will also cover how to analyze legal problems and apply the law to specific scenarios.

- Legal Writing: The tutor will then move on to legal writing, another essential skill for legal professionals. This involves learning how to write various legal documents such as briefs, memos, contracts, and legal opinions. The tutor will provide tips on how to write clearly and persuasively, how to structure your arguments, and how to cite legal authorities correctly.

- Practical Exercises: Throughout the lesson, the tutor will provide practical exercises to help you apply what you've learned. This might involve researching a particular legal issue or drafting a legal document.
- Feedback and Improvement: The tutor will provide feedback on your work, helping you to improve your legal research and writing skills. They will point out any areas of weakness and provide suggestions for improvement.

This lesson is designed for anyone interested in law, whether you're a law student, a legal professional looking to brush up on your skills, or someone considering a career in law. It provides a solid foundation in legal research and writing, two of the most important skills for any legal professional.
verified badge
Are you looking for help with mathematics?

To prepare for an exam, accomplish a coursework, a bachelor's or master's thesis?

I studied mathematics and physics (PhD) and have been teaching for 10 years. I have already
helped more than 150 students succeed.

I make the lecture material more understandable using concrete examples. I correct papers, explain the best methods to solve tasks or put up my own exercices to achieve the necessary level.

I would be happy to help you write extensive papers.

I am an affable character and am completely committed to one goal: the success of the
student.
verified badge
préparation du cours 1 et 2 degré secondaire en sciences et en mathématiques
Préparation de Ce1D sciences et mathématiques
Soutien scolaire
Mise a niveau
Renforcement
Dépassement
Remediation
.........................
Cours par blocus
Exercices concrètes
Pédagogie sur mesure pour tous publics
.......
verified badge
With a background in Civil Engineering, I offer private tutoring in mathematics and science for all primary and secondary school levels. Each student has specific needs, which is why I adopt a flexible and supportive approach. My goal is to help students understand concepts in depth, build confidence, and progress effectively. During the lesson, we begin with a discussion to identify difficulties and define appropriate objectives together. Next, a theoretical review consolidates the foundations before moving on to progressive exercises, encouraging the practical application of the concepts covered. Throughout the session, I encourage students to rephrase concepts and place them in a logical context to solidify their learning. Finally, we take a few minutes to review the session and write a summary of the key points to facilitate revision and memorization. I offer online courses and emphasize the value of online teaching by using interactive tools, screen sharing, and adapted materials to ensure the same clear and effective support as in face-to-face sessions. In addition to the lessons, I offer personalized follow-up with the option of reviewing exercises remotely between classes. Whether you need regular support or occasional help before an exam, I would be delighted to help you progress in a motivating and supportive environment!
verified badge
This course is designed for anyone interested in learning data science using Python. It provides a hands-on introduction to fundamental data analysis tools such as NumPy, pandas, matplotlib, and seaborn. You'll learn how to manipulate datasets, create visualizations, and lay the foundations for statistical analysis and machine learning.

The course combines theory and practical exercises for effective, practical progress. No prior programming experience is necessary: we'll start with the basics to build solid, usable skills quickly.
verified badge
I’m a fourth-year Ph.D. student in natural science at Eötvös Loránd University. With a master's degree in Immunology and a degree in general biology, I would be happy to help high school or university students make biology an enjoyable subject to learn.
verified badge
I offer private tutoring at home for all levels, from primary school to high school. A typical session consists of the following steps:

-Reviewing the student's course materials, with answers to any questions.
-Correction of teacher's exercises or specific exercises depending on the student's difficulties.
-Preparation for possible student assessments using formative assessments that I have developed, targeting the student's difficulties.

Everything is tailored to each student using fun and engaging methods. Learning while having fun is not impossible!
verified badge
Private tutoring is offered in mathematics, physics, and computer science. The teaching is based on an interactive and simplified pedagogical approach, promoting understanding, autonomy, and academic success for students through individualized support and effective learning methods.
verified badge
Are you stuck on an exercise, has a concept been piling up for several weeks, or do you simply want to get ahead to approach the year with peace of mind? I'm here for that.

I offer private lessons in mathematics, physics-chemistry and engineering sciences, from middle school to high school, all streams included (General, STI2D, STL).

My approach is simple: I adapt to your pace and your weaknesses, not the other way around. Each session begins by identifying what's really holding you back, then we rebuild the basics together, step by step, until the logic is clear and you can apply it on your own.

Whether it's to catch up, prepare for a test, get a better grade on the baccalaureate exam, or strengthen your problem-solving method, I make sure that every hour spent together is a truly useful hour.

- Clear explanation of concepts, without unnecessary jargon
- Exercises targeted at your weaknesses
- Reasoning methods reproducible in the exam
- Personalized follow-up from one session to the next
- Available in person or via videoconference
Garantie Le-Bon-Prof
favorite button
message icon
Contacter Oguz