facebook
favorite button
member since icon
Since October 2020
Instructor since October 2020
Translated by GoogleSee original
Science, biology and veterinary course courses (secondary or higher level)
course price icon
From 31 C$ /h
arrow icon
With a master's degree in veterinary medicine, I am available to give courses in general sciences, biology as well as for the courses of the veterinary course (bachelor or master).
Assistance in preparing for the blockade (planning, working method, summaries, etc.) is also possible.
Location
green drop pin icon
|
Use Ctrl + wheel to zoom!
zoom in iconzoom out icon
location type icon
At student's location :
  • Around Brussels, Belgium
location type icon
Online from Belgium
Age
Children (7-12 years old)
Teenagers (13-17 years old)
Adults (18-64 years old)
Seniors (65+ years old)
Student level
Beginner
Intermediate
Advanced
Duration
60 minutes
90 minutes
120 minutes
The class is taught in
French
English
Availability of a typical week
(GMT -04:00)
New York
at teacher icon
Online via webcam
at home icon
At student's home
Mon
Tue
Wed
Thu
Fri
Sat
Sun
00-04
04-08
08-12
12-16
16-20
20-24
Similar classes
arrow icon previousarrow icon next
verified badge
As an electromechanical engineer and Data Scientist, I'm here to lend a hand and share tips and tricks with young people who face challenges in math and science. My goal is to make the material more enjoyable and accessible and to help you feel more comfortable with it. We will explore the content together with enthusiasm and a smile.
verified badge
University Management Engineer at solvay with CESS Math strong + savings. Serious and punctual these courses apply for high school students in terminal or at a lower level.
But also for the pupils of Superior in high school.
verified badge
Currently, I am working at MaaS department in Denso Corporation, Shinagawa, Tokyo.
I have done my masters from the Indian Institute of Technology Hyderabad India recently.
I can teach you Mathematics and science in a simpler way as I have lived with those things for 10 years.

I can teach you coding, Science and Math if you wish to learn new things contact me.

This class is for those who really want to use to learn computer languages like C, C++ in a more innovative manner.

I little bit know Nihon-Go as well.
verified badge
My teaching method is based on the student in particular and his achievements (without any judgment), starting with an inventory with the student in order to understand his level and his main difficulties. From this information, I adapt the course according to his real needs. We can choose to take the student's course or take mine.
For me there is no shame in not understanding, which is why I can re-explain in different ways! :)

As for my background, I am currently a student in biomedical sciences and I have my CESS diploma in science option obtained with distinction (I passed all my secondary years with honors at Lycée Émile Jacqmain). I gave chemistry class because I have a lot of interest in science and I manage to explain difficult subjects to an audience that does not have / little / only a few scientific bases by communicating in a simple, precise and easy way. proof of pedagogy.

See you soon !
verified badge
TRANSFORMING LEANERS INTO TOP ACHIEVERS— FROM PRIMARY TO IB

Welcome to a learning experience designed to inspire confidence, mastery, and academic excellence across Mathematics, Science, Physics, Chemistry, and Biology. Whether your child is building foundational understanding in primary school, preparing for the challenges of IGCSE/MYP, or tackling the rigor of A Level and IB (HL & SL), my classes are structured to deliver real, measurable progress.


WHY LEARN WITH ME?

I bring over 10 years of professional tutoring experience** backed by a strong academic foundation. Having graduated with honors from both the Faculty of Science and the Faculty of Medicine, and further trained in advanced mathematical and scientific pedagogy at top institutions like MIT, I have developed a teaching approach that blends expertise, empathy, and innovation.

BUT MY PASSION FOR TEACHING COMES FROM A DEPPER PLACE.

As someone who once struggled with dyslexia and ADHD, finishing at the bottom of the class, I personally understand the frustrations many learners face. With the guidance of a mentor, I transformed my academic life—rising to the top 1% worldwide in SATs and earning placements at prestigious universities.
This journey fuels my mission: to help every student unlock their potential, no matter where they begin.


WHAT I OFFER

My classes are designed for both students who need patient, structured support and high achievers seeking challenge and enrichment.

Subjects Covered (All International Curricula)

Mathematics – Primary | Secondary | IGCSE | GCSE | A Level | IB AA/AI (SL & HL)
Science– Primary | Lower Secondary | MYP
Physics – IGCSE | A Level | IB (SL & HL)
Chemistry – IGCSE | A Level | IB (SL & HL)
Biology – IGCSE | A Level | IB (SL & HL)

TEACHING APPROACH

* Personalized, one-on-one sessions tailored to each learner’s pace and strengths
* Use of diagrams, real-life examples, and problem-based learning
* Emphasis on conceptual understanding and exam strategy
* Step-by-step explanations for every problem
* Confidence-building techniques for anxious or struggling learners
* Support with homework, revision, coursework, and past papers


FOR PARENTS

Your child will be learning in a supportive, structured environment designed to strengthen skills, fill gaps from earlier years, and rebuild confidence.
You can expect:

* Steady performance improvement
* Clear progress tracking
* Regular feedback
* A tutor who treats your child’s success as a shared mission

FOR STUDENTS

You deserve a teacher who understands you.
You deserve lessons that make difficult concepts finally make sense.
You deserve a guide who will help you go from confused to confident—and even exceptional.
I’m here to help you build the skills, habits, and mindset that top-performing students rely on.

SEE WHAT OTHER PARENTS AND STUDENTS SAY

I always encourage new clients to read my reviews as they reflect the real results, growth, and transformations that students experience in my sessions. Your trust matters and my past students’ success stories say more than I ever could.


LET'S BEGIN THE JOURNEY TOGETHER

Whether you’re looking to catch up, keep up, or excel, I’m here to help you achieve your goals with patience, passion, and proven techniques.

Your child’s success is possible—let’s unlock it together.
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
Welcome to my profile.
I am an experienced mathematics and science teacher with over seven years of experience helping students strengthen their understanding, improve their results and become more confident, independent learners.
My lessons are designed for students and families who value high-quality, well-prepared and personalised teaching. Rather than offering a one-size-fits-all course, I adapt each lesson to the student’s level, objectives, school programme and learning style.
I teach students who need to rebuild essential foundations as well as those working on advanced topics, examinations or demanding international programmes such as the European Baccalaureate and International Baccalaureate, as well as, the various Belgian programs.

◆ MY TEACHING APPROACH ◆

• • Initial assessment • •
We begin by identifying the student’s current level, strengths, difficulties and academic objectives.

• • Personalised lesson planning • •
Each student receives a structured learning approach based on their specific needs, curriculum and pace of progress.

• • Clear and accessible explanations • •
Complex concepts are broken down into logical, manageable steps, with visual representations and carefully selected examples.

• • Active problem-solving • •
Students are encouraged to think, explain their reasoning and develop reliable methods for approaching unfamiliar questions.

• • Targeted practice • •
Exercises are selected to address specific weaknesses, consolidate knowledge and prepare effectively for tests and examinations.

• • Regular review and feedback • •
Previously studied material is revisited when necessary, and clear feedback is provided to help the student understand what has improved and what still requires attention.

◆ WHAT YOU CAN EXPECT ◆

Professionalism and reliability are central to my work:
• • Lessons prepared in advance and tailored to the student
• • Punctual and well-structured sessions
• • Patient, respectful and focused teaching
• • Clear explanations without unnecessary complication
• • Constructive and timely feedback
• • Adaptation based on the student’s progress
• • A serious learning environment that remains supportive and encouraging

My objective is not simply to help students complete exercises. I aim to help them understand the underlying concepts, develop stronger reasoning skills and gain the confidence required to work more independently.

Mathematics and science can appear difficult when important foundations are missing or when explanations are poorly adapted to the learner. With the right structure, guidance and practice, these subjects become far more logical, accessible and rewarding.
verified badge
I give lessons in various subjects at the lower and upper secondary level such as mathematics, French, English, science, economics, sociology, law, etc.
I have degrees in law and business management. I have been a tutor for about fifteen years.
I often assist students in obtaining their CEBs or in various secondary school subjects. I also assist law students.
verified badge
I offer tutoring in Natural Sciences (NTW), Biology, Chemistry, and Physics for students from the first grade up to the 4th year of secondary school. My lessons are tailored to each student, focusing on a deep understanding of the material and the development of essential skills. We go through the subject matter step by step, always taking the time to review the basic principles when necessary.

During the lessons, we work with the materials provided by the school, such as textbooks, assignments, and tests. This ensures that the tutoring aligns perfectly with the school curriculum and helps the student prepare effectively for upcoming tests or exams. I also offer additional support for specific tasks and exam preparation, so that each student can be optimally prepared.
verified badge
I offer engaging and personalized lessons in Math, Dutch, and Science for children and teenagers. My classes are tailored to each student’s level and learning style, with a focus on building strong foundations, boosting confidence, and achieving academic success. Whether it’s help with homework, exam preparation, or skill-building, I create a supportive environment where students can thrive and enjoy learning.
verified badge
As a Biomedical Sciences student and trilingual speaker accustomed to the rigorous standards of medical studies, I offer personalised tutoring designed to help you or your child progress with confidence and clarity.

Biology (Secondary School Level):
Biology is fascinating once you unlock its logic! I help students prepare for exams or strengthen their foundations in topics like genetics, anatomy, and cell biology. My goal is to transform complex concepts into simple, intuitive ideas while sharing effective study techniques.

I adapt to the unique pace of every student. I am patient, organised, and I love using concrete examples to bring lessons to life. Whether you need a one-time boost before a test or long-term support, I am dedicated to helping you reach your goals!
verified badge
I hold a Doctorate in Pharmacy and 2 Masters degrees from the University of Paris V René-Descartes.
Since the beginning of my higher education, and since I established myself as a freelancer after 10 years of managerial career in the pharmaceutical industry, I have been used to regularly giving private lessons to pupils and students of all levels, Primary, Secondary and Higher, supporting them until they pass their exams.
The main disciplines in which I support students are essentially scientific.
The perspectives provided are transdisciplinary.
verified badge
Are you having difficulties in biology or science, or do you simply want to better understand the subject matter and improve your results?

I offer private lessons tailored to primary and secondary school students, with a simple, progressive and personalized approach.

The goal is not just to learn the material by heart, but above all to understand it so that it can be easily reused during exercises, tests and exams.

Depending on the student's needs, we can work on:

- understanding of the concepts seen in class;
- exercises and homework;
- preparing for tests and exams;
- the refresher course;
- the working method and memorization;
- the specific difficulties encountered by the student.

Each lesson is tailored to the student's level and pace. I take the time to identify any difficulties in order to create a truly personalized learning experience.

Whether it's to catch up, prepare for an exam or simply gain self-confidence, the goal is to enable the student to make lasting progress.
verified badge
Chemistry:
CE1d
Basic Science Program (Science 2 or 3 hours/week): Secondary 3, 4, 5, 6
General Science Program (Strong Science, 3 or 4 hours/week): 3rd, 4th, 5th (6th on request)

Physical:
CE1d
Basic Science Program (Science 2 or 3 hours/week): 3rd year up to rhetoric.
General Science Program (Science 3 or 4 hours/week): 3rd to 5th year of secondary school

Biology:
CE1d
verified badge
As a computer science student at the Free University of Brussels and holding a degree in animation, I offer private math and science lessons for primary and secondary school students.
I worked as a tutor for students preparing for the vocational CESS science exam before the Central Examining Board for the municipality of Anderlecht. I prepared and delivered lessons to help candidates understand the material and prepare effectively for the exam.
I also completed internships as a kindergarten teacher and a physical education teacher in secondary school. These experiences taught me how to supervise children and teenagers, how to design appropriate lessons, and how to explain the same concept in different ways.
My approach is based on understanding, practice, and confidence. I begin by identifying the student's difficulties, then we review the necessary fundamentals before progressing through tailored exercises. The student is encouraged to explain their reasoning in order to learn to detect and correct their own errors.
I also use artificial intelligence tools to prepare, when relevant, customized diagrams, illustrations, and visualizations. These resources make certain mathematical or scientific concepts more concrete and easier to visualize. AI here serves as a pedagogical preparation tool: explanations, guidance, and content verification remain entirely my responsibility.
The sessions can be used to:
- to understand or review a chapter;
- solving exercises;
- to prepare for a quiz, an exam;
- correct a previous assessment;
- to make up for lost time;
- to develop a more efficient working method.
I can teach in French, Spanish, or Arabic. I also have a very good level of English.
message icon
Contact Marie
repeat students icon
1st lesson is backed
by our
Good-fit Instructor Guarantee
Similar classes
arrow icon previousarrow icon next
verified badge
As an electromechanical engineer and Data Scientist, I'm here to lend a hand and share tips and tricks with young people who face challenges in math and science. My goal is to make the material more enjoyable and accessible and to help you feel more comfortable with it. We will explore the content together with enthusiasm and a smile.
verified badge
University Management Engineer at solvay with CESS Math strong + savings. Serious and punctual these courses apply for high school students in terminal or at a lower level.
But also for the pupils of Superior in high school.
verified badge
Currently, I am working at MaaS department in Denso Corporation, Shinagawa, Tokyo.
I have done my masters from the Indian Institute of Technology Hyderabad India recently.
I can teach you Mathematics and science in a simpler way as I have lived with those things for 10 years.

I can teach you coding, Science and Math if you wish to learn new things contact me.

This class is for those who really want to use to learn computer languages like C, C++ in a more innovative manner.

I little bit know Nihon-Go as well.
verified badge
My teaching method is based on the student in particular and his achievements (without any judgment), starting with an inventory with the student in order to understand his level and his main difficulties. From this information, I adapt the course according to his real needs. We can choose to take the student's course or take mine.
For me there is no shame in not understanding, which is why I can re-explain in different ways! :)

As for my background, I am currently a student in biomedical sciences and I have my CESS diploma in science option obtained with distinction (I passed all my secondary years with honors at Lycée Émile Jacqmain). I gave chemistry class because I have a lot of interest in science and I manage to explain difficult subjects to an audience that does not have / little / only a few scientific bases by communicating in a simple, precise and easy way. proof of pedagogy.

See you soon !
verified badge
TRANSFORMING LEANERS INTO TOP ACHIEVERS— FROM PRIMARY TO IB

Welcome to a learning experience designed to inspire confidence, mastery, and academic excellence across Mathematics, Science, Physics, Chemistry, and Biology. Whether your child is building foundational understanding in primary school, preparing for the challenges of IGCSE/MYP, or tackling the rigor of A Level and IB (HL & SL), my classes are structured to deliver real, measurable progress.


WHY LEARN WITH ME?

I bring over 10 years of professional tutoring experience** backed by a strong academic foundation. Having graduated with honors from both the Faculty of Science and the Faculty of Medicine, and further trained in advanced mathematical and scientific pedagogy at top institutions like MIT, I have developed a teaching approach that blends expertise, empathy, and innovation.

BUT MY PASSION FOR TEACHING COMES FROM A DEPPER PLACE.

As someone who once struggled with dyslexia and ADHD, finishing at the bottom of the class, I personally understand the frustrations many learners face. With the guidance of a mentor, I transformed my academic life—rising to the top 1% worldwide in SATs and earning placements at prestigious universities.
This journey fuels my mission: to help every student unlock their potential, no matter where they begin.


WHAT I OFFER

My classes are designed for both students who need patient, structured support and high achievers seeking challenge and enrichment.

Subjects Covered (All International Curricula)

Mathematics – Primary | Secondary | IGCSE | GCSE | A Level | IB AA/AI (SL & HL)
Science– Primary | Lower Secondary | MYP
Physics – IGCSE | A Level | IB (SL & HL)
Chemistry – IGCSE | A Level | IB (SL & HL)
Biology – IGCSE | A Level | IB (SL & HL)

TEACHING APPROACH

* Personalized, one-on-one sessions tailored to each learner’s pace and strengths
* Use of diagrams, real-life examples, and problem-based learning
* Emphasis on conceptual understanding and exam strategy
* Step-by-step explanations for every problem
* Confidence-building techniques for anxious or struggling learners
* Support with homework, revision, coursework, and past papers


FOR PARENTS

Your child will be learning in a supportive, structured environment designed to strengthen skills, fill gaps from earlier years, and rebuild confidence.
You can expect:

* Steady performance improvement
* Clear progress tracking
* Regular feedback
* A tutor who treats your child’s success as a shared mission

FOR STUDENTS

You deserve a teacher who understands you.
You deserve lessons that make difficult concepts finally make sense.
You deserve a guide who will help you go from confused to confident—and even exceptional.
I’m here to help you build the skills, habits, and mindset that top-performing students rely on.

SEE WHAT OTHER PARENTS AND STUDENTS SAY

I always encourage new clients to read my reviews as they reflect the real results, growth, and transformations that students experience in my sessions. Your trust matters and my past students’ success stories say more than I ever could.


LET'S BEGIN THE JOURNEY TOGETHER

Whether you’re looking to catch up, keep up, or excel, I’m here to help you achieve your goals with patience, passion, and proven techniques.

Your child’s success is possible—let’s unlock it together.
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
Welcome to my profile.
I am an experienced mathematics and science teacher with over seven years of experience helping students strengthen their understanding, improve their results and become more confident, independent learners.
My lessons are designed for students and families who value high-quality, well-prepared and personalised teaching. Rather than offering a one-size-fits-all course, I adapt each lesson to the student’s level, objectives, school programme and learning style.
I teach students who need to rebuild essential foundations as well as those working on advanced topics, examinations or demanding international programmes such as the European Baccalaureate and International Baccalaureate, as well as, the various Belgian programs.

◆ MY TEACHING APPROACH ◆

• • Initial assessment • •
We begin by identifying the student’s current level, strengths, difficulties and academic objectives.

• • Personalised lesson planning • •
Each student receives a structured learning approach based on their specific needs, curriculum and pace of progress.

• • Clear and accessible explanations • •
Complex concepts are broken down into logical, manageable steps, with visual representations and carefully selected examples.

• • Active problem-solving • •
Students are encouraged to think, explain their reasoning and develop reliable methods for approaching unfamiliar questions.

• • Targeted practice • •
Exercises are selected to address specific weaknesses, consolidate knowledge and prepare effectively for tests and examinations.

• • Regular review and feedback • •
Previously studied material is revisited when necessary, and clear feedback is provided to help the student understand what has improved and what still requires attention.

◆ WHAT YOU CAN EXPECT ◆

Professionalism and reliability are central to my work:
• • Lessons prepared in advance and tailored to the student
• • Punctual and well-structured sessions
• • Patient, respectful and focused teaching
• • Clear explanations without unnecessary complication
• • Constructive and timely feedback
• • Adaptation based on the student’s progress
• • A serious learning environment that remains supportive and encouraging

My objective is not simply to help students complete exercises. I aim to help them understand the underlying concepts, develop stronger reasoning skills and gain the confidence required to work more independently.

Mathematics and science can appear difficult when important foundations are missing or when explanations are poorly adapted to the learner. With the right structure, guidance and practice, these subjects become far more logical, accessible and rewarding.
verified badge
I give lessons in various subjects at the lower and upper secondary level such as mathematics, French, English, science, economics, sociology, law, etc.
I have degrees in law and business management. I have been a tutor for about fifteen years.
I often assist students in obtaining their CEBs or in various secondary school subjects. I also assist law students.
verified badge
I offer tutoring in Natural Sciences (NTW), Biology, Chemistry, and Physics for students from the first grade up to the 4th year of secondary school. My lessons are tailored to each student, focusing on a deep understanding of the material and the development of essential skills. We go through the subject matter step by step, always taking the time to review the basic principles when necessary.

During the lessons, we work with the materials provided by the school, such as textbooks, assignments, and tests. This ensures that the tutoring aligns perfectly with the school curriculum and helps the student prepare effectively for upcoming tests or exams. I also offer additional support for specific tasks and exam preparation, so that each student can be optimally prepared.
verified badge
I offer engaging and personalized lessons in Math, Dutch, and Science for children and teenagers. My classes are tailored to each student’s level and learning style, with a focus on building strong foundations, boosting confidence, and achieving academic success. Whether it’s help with homework, exam preparation, or skill-building, I create a supportive environment where students can thrive and enjoy learning.
verified badge
As a Biomedical Sciences student and trilingual speaker accustomed to the rigorous standards of medical studies, I offer personalised tutoring designed to help you or your child progress with confidence and clarity.

Biology (Secondary School Level):
Biology is fascinating once you unlock its logic! I help students prepare for exams or strengthen their foundations in topics like genetics, anatomy, and cell biology. My goal is to transform complex concepts into simple, intuitive ideas while sharing effective study techniques.

I adapt to the unique pace of every student. I am patient, organised, and I love using concrete examples to bring lessons to life. Whether you need a one-time boost before a test or long-term support, I am dedicated to helping you reach your goals!
verified badge
I hold a Doctorate in Pharmacy and 2 Masters degrees from the University of Paris V René-Descartes.
Since the beginning of my higher education, and since I established myself as a freelancer after 10 years of managerial career in the pharmaceutical industry, I have been used to regularly giving private lessons to pupils and students of all levels, Primary, Secondary and Higher, supporting them until they pass their exams.
The main disciplines in which I support students are essentially scientific.
The perspectives provided are transdisciplinary.
verified badge
Are you having difficulties in biology or science, or do you simply want to better understand the subject matter and improve your results?

I offer private lessons tailored to primary and secondary school students, with a simple, progressive and personalized approach.

The goal is not just to learn the material by heart, but above all to understand it so that it can be easily reused during exercises, tests and exams.

Depending on the student's needs, we can work on:

- understanding of the concepts seen in class;
- exercises and homework;
- preparing for tests and exams;
- the refresher course;
- the working method and memorization;
- the specific difficulties encountered by the student.

Each lesson is tailored to the student's level and pace. I take the time to identify any difficulties in order to create a truly personalized learning experience.

Whether it's to catch up, prepare for an exam or simply gain self-confidence, the goal is to enable the student to make lasting progress.
verified badge
Chemistry:
CE1d
Basic Science Program (Science 2 or 3 hours/week): Secondary 3, 4, 5, 6
General Science Program (Strong Science, 3 or 4 hours/week): 3rd, 4th, 5th (6th on request)

Physical:
CE1d
Basic Science Program (Science 2 or 3 hours/week): 3rd year up to rhetoric.
General Science Program (Science 3 or 4 hours/week): 3rd to 5th year of secondary school

Biology:
CE1d
verified badge
As a computer science student at the Free University of Brussels and holding a degree in animation, I offer private math and science lessons for primary and secondary school students.
I worked as a tutor for students preparing for the vocational CESS science exam before the Central Examining Board for the municipality of Anderlecht. I prepared and delivered lessons to help candidates understand the material and prepare effectively for the exam.
I also completed internships as a kindergarten teacher and a physical education teacher in secondary school. These experiences taught me how to supervise children and teenagers, how to design appropriate lessons, and how to explain the same concept in different ways.
My approach is based on understanding, practice, and confidence. I begin by identifying the student's difficulties, then we review the necessary fundamentals before progressing through tailored exercises. The student is encouraged to explain their reasoning in order to learn to detect and correct their own errors.
I also use artificial intelligence tools to prepare, when relevant, customized diagrams, illustrations, and visualizations. These resources make certain mathematical or scientific concepts more concrete and easier to visualize. AI here serves as a pedagogical preparation tool: explanations, guidance, and content verification remain entirely my responsibility.
The sessions can be used to:
- to understand or review a chapter;
- solving exercises;
- to prepare for a quiz, an exam;
- correct a previous assessment;
- to make up for lost time;
- to develop a more efficient working method.
I can teach in French, Spanish, or Arabic. I also have a very good level of English.
Good-fit Instructor Guarantee
favorite button
message icon
Contact Marie