Biology for high school students (Tawjihi)

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From 10 C$ /h

Biology is a basic science that aims to introduce students to the basics of biology, its history, importance, and various branches, as well as the characteristics and features of living organisms. This subject covers diverse aspects, including the basic principles and laws that govern life. It is one of the most diverse sciences, including genetics, cell science, physiology, microbiology, general botany, general practical biology, etc.

Location

Online from Egypt

About Me

Ibrahim El Shafei: A pioneer in bioengineering and genetics

Research projects
Interested in applied research and innovative solutions in the field of biotechnology:

- Superior Biosynthesis of Silver Nanoparticles: This project focused on the use of marine algae (e.g., Ulva, Ascophyllum, Sargassum) to synthesize silver nanoparticles, highlighting sustainable biotechnology applications.

Genetic transformation for resistance to brown rot in potatoes: This project involved using gene gun technology (biolistic) to transfer a brown rot resistance gene into potato plants, a significant achievement in crop improvement.

- Drug development from natural products, complete preclinical trial – February 2023
This comprehensive training included a wide range of laboratory and research activities:

Extraction and identification of active compounds from common barberry:
Sample collection and preparation.
Extraction with organic solvents, evaporation, freeze drying, and then powder fractionation.
Column and thin layer chromatography (TLC) techniques.
Development of HPLC and LC/MS/MS methods.
In vitro biological evaluations:
Color tests, enzyme-based tests, and color-based tests.
Cytotoxicity tests, including mammalian cell culture techniques, sterile standards in sample handling, cell culture, cell division, cell counting, and cytotoxicity tests.
Antimicrobial tests.
Protein assays (tissue homogenization, gel electrophoresis, protein quantification and normalization, immunoproteomic mapping, tissue sectioning for histopathological studies, immunohistochemistry and ELISA techniques).
In vivo biological evaluations:
Animal handling, mouse dissection, blood chemistry and complete blood count (CBC) analysis.
Photon imaging.

Plant protection and molecular diagnosis
Molecular techniques:
Extraction of DNA and RNA from all organisms manually or using tools (PCR - RT-PCR - RFLP - SSR-ISSR - gel electrophoresis - DNA purification).
Antimicrobial tests:
Preparation of different types of microbial media (PDA - Nutrient Agar...etc.).
Preparation of nanomaterials by chemical methods for use in plant therapy.
Treating plants with carborundum, infecting the plant, and then experimenting with different concentrations of insecticides.
Find the optimal concentration of pesticides by growing pathogens in a Petri dish and then treating with different concentrations.
Biotechnology (tissue culture and gene gun)
This experience includes:

Plant tissue culture (potatoes, bananas, jojoba, mint, corn, wheat, strawberries).
Gene Gun.
Extraction of aromatic compounds and active ingredients from plants and algae.
Licenses, Certifications and Training
Ibrahim's licenses, certifications, and training reflect his commitment to continuous learning and developing his skills in specialized fields.

Live training
Use of Electron Microscopy in Nanobiotechnology Applications - Alexandria University (Faculty of Science).
Biotechnology in the production of recombinant biological proteins - Theodor Bilharz Research Institute (TBRI).
Nanotechnology via Inductively Coupled Plasma Spectrometry (ICP-MS) - Sadat University.
Fundamentals of Animal Cell Culture Technology - Sadat University.
Fundamentals of Real Time-PCR Technology - Sadat University.
Food and Dairy Microbiology Analysis - Sadat University.
Online training
The Role of Comparative Genomics and Whole Genome Analysis in Identifying Molecular Networks Related to Interspecies Pressure - Scientific Forum for Taxonomy and Genetics.
Natural Nanomaterials and Their Industrial Applications - University of Basra, College of Science and Technology.
Preparation of bioceramic nanomaterials for use in medical applications - University of Basra, College of Science and Technology.
Nano-catalysts from synthesis to application - University of Basrah, College of Science and Technology.
Antibiotic-resistant bacteria: the silent pandemic - University of Basra, College of Science and Technology.

Education

University studies
Bachelor of Biotechnology and Genetic Engineering - Damanhour University.

Postgraduate studies
Master of Biotechnology and Genetic Engineering, Faculty of Science, Alexandria University, specializing in pharmacogenomics

Experience / Qualifications

Researcher at the Scientific Research City in Borg El Arab, Alexandria, for two years, specializing in drug development from natural products, plant protection, molecular diagnostics, and animal and plant tissue culture.

Age

Teenagers (13-17 years old)

Adults (18-64 years old)

Seniors (65+ years old)

Student level

Beginner

Intermediate

Duration

60 minutes

The class is taught in

Arabic

English

Skills

Science

Chemistry

Availability of a typical week

(GMT -04:00)

New York

Online via webcam

Mon

Tue

Wed

Thu

Fri

Sat

Sun

00-04

04-08

08-12

12-16

16-20

20-24

Raef

4.73

(137)

With over 18 years of experience, I offer private lessons in Mathematics - Analysis - Matrices - Statistics - Algebra - Geometry - Physics - Chemistry - Biology and Geology to students in the French curriculum (Terminales, Baccalaureate, 1ère, Seconde, Brevet) or international CGSE or IB (in English) competitive exams and university preparatory classes for medical or 1st and 2nd year university students. Lessons are available either at home or online using a modern and effective virtual classroom method, with results consistently achieving Excellent, Very Good, and Good grades.
Homework help for CNED students.
For more information, do not hesitate to contact me.

Constanza

4.73

(137)

If you're looking for an organised and professional teacher to help you achieve your academic goals, look no further! The IB science subjects can be extremely difficult to go through on your own, and I'll be glad to use my experience to help you out.

A couple of things I like to do:

- Initial test or interview to assess your level.
- Use Notion as a platform to share all my resources.
- Use mock papers that lay out the exercises JUST like in the real exams, so you will feel really prepared.
- I give homework when appropriate.
- I provide any kind of mentoring and college counseling. People who study Biology and Chemistry usually want to pursue a clinical career-- and that is a complex process!

Amin

4.73

(137)

Struggling with math, physics, or chemistry? You're not alone — these subjects are hard, and classroom explanations are rarely enough.
I offer personalized tutoring for middle school, high school, and early university students following the French Mission curriculum, the Moroccan national curriculum, or the international baccalaureate.
Topics covered:

Mathematics: algebra, geometry, calculus, trigonometry, probability
Physics: mechanics, electricity, optics, thermodynamics
Chemistry: organic, inorganic, stoichiometry, reactions

My approach:
I don't re-explain the textbook — I identify exactly where your understanding breaks down and fix it from there. Each session is built around your specific difficulties, not a preset program.
I completed CPGE (Classes Préparatoires aux Grandes Écoles) in Mathematics and Physics before graduating as a State Engineer — I know these subjects at an advanced level and I know where students typically get lost.
Individual and small group sessions available. Online (worldwide) in French, Arabic, or English.

Alba

4.73

(137)

Graduate teacher in physics with 8 years of experience as a private teacher. I offer individualized pedagogy, help in preparing for questions or exams. My goal is to advance the student without overloading him. I give homework after each lesson and periodically provide progress reports.

Chiwila

4.73

(137)

As a dedicated tutor with extensive experience in preparing students for standardized exams such as the SAT, GMAT, and SSAT, I understand the unique challenges that each of these tests presents. My approach is comprehensive and focuses on building a strong foundation in critical areas such as Mathematics, Quantitative Reasoning, Verbal Skills, and Analytical Writing. Each program I develop is tailored to the specific requirements of the exam, ensuring that students are well-prepared and confident on test day.

Having a deep understanding of the test formats and question types allows me to provide personalized strategies that target each student's individual strengths and weaknesses. I believe that every student has a unique learning style, and my goal is to enhance their test-taking skills while improving their time management. By fostering a supportive learning environment, I aim to boost students' confidence and empower them to achieve top scores.

My tutoring sessions incorporate a variety of effective methods, including real exam questions and timed practice tests. This hands-on approach allows students to familiarize themselves with the types of questions they will encounter, making the actual exam feel less daunting. I teach proven techniques for tackling even the most challenging problems, ensuring that students feel equipped to handle any question that comes their way.

One of the key components of my tutoring is helping students develop effective study habits. I provide guidance on creating a structured study plan that maximizes their preparation time and aligns with their personal goals. This structured approach not only keeps students on track but also helps them build a sense of accountability, which is crucial for success.

In addition to academic preparation, I also focus on the psychological aspects of test-taking. Many students experience anxiety leading up to exams, which can affect their performance. I teach relaxation techniques and mental strategies to help manage stress, allowing students to approach their exams with a calm and focused mindset. By addressing both the academic and emotional challenges of test preparation, I equip students with a well-rounded toolkit for success.

Feedback is an essential part of the learning process, and I make it a priority to provide constructive and actionable insights during our sessions. After each practice test, I conduct a thorough review of the results, highlighting areas for improvement while also acknowledging progress. This continuous feedback loop helps students understand their growth and keeps them motivated throughout their preparation.

My commitment to student success goes beyond just teaching content. I aim to inspire a love for learning and self-improvement in each of my students. Many of my former students have gone on to achieve their academic goals, securing places at prestigious universities and programs. Their success stories are a testament to the effectiveness of my tailored approach and the dedication I bring to each tutoring session.

If you're looking to master the SAT, GMAT, or SSAT with confidence, I invite you to book a session now. Together, we will develop a customized learning plan that suits your individual needs, ensuring that you are not only prepared to face the test but also equipped to excel and reach your highest potential. With my guidance and your commitment, we can achieve outstanding results. Let’s embark on this journey to success together!

Robert

4.73

(137)

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.

Vincent

4.73

(137)

Science includes all natural science subjects; PHYSICS, CHEMISTRY, BIOLOGY and MATHEMATICS . PHYSICS deals with MECHANICS of OBJECTS while CHEMISTRY deals with CHEMICAL CHANGES of different REACTIONS.On the other hand BIOLOGY is the study of LIFE PROCESSES and different MATERIALS that SUPPORTS LIFE.Whereas , MATHEMATICS is a subject that explains DIFFERENT CONCEPTS using NUMBERS and VARIABLES.

Ignacio

4.73

(137)

Course Description:

This course is designed to reinforce and improve your knowledge in Mathematics, Physics and Chemistry, and English. Through clear explanations, practical exercises, and real-world examples, you will learn to solve mathematical problems, understand the principles of Physics and Chemistry, and improve your English skills.

What will you learn?

Mathematics: Algebra, functions, geometry and problem solving.

Physics and Chemistry: Key concepts, formulas and applications in everyday life.

English: Grammar, vocabulary and conversation to improve your communication.

If you are looking for support in these subjects to improve your grades or prepare for exams, this course is for you!

Dr.Ibrahim

4.73

(137)

This course offers an integrated introduction to the core areas of science, including biology, physics, earth science, and environmental science. Students will explore scientific concepts, principles, and methods through hands-on experiments, observations, and problem-solving activities. Emphasis is placed on developing scientific literacy, critical thinking, and an understanding of the scientific method. The course encourages curiosity about the natural world and prepares students to apply scientific knowledge to everyday life and future academic study.

Kelvin

4.73

(137)

Hi, Tutor Kelvin here your Maths Tutor.

MATHS;
Many students fail Maths because of already defeated mindset about Maths and unsharpened analytical skills.
As an experienced Tutor, my aim is to bridge in that gap.That's to make sure no student must ever be troubled with a concept that has a solution .

Topics to be covered in MATHEMATICS are:
•Types of Numbers
•Algebra
•Sets
•Indices
•Fractions
•Functions
•Trigonometry
•Equatioms
•Probability
•Transformations
•Geometry
•Proportions
•Exponential and Decay Curves
•Distance time Graphs
•Mensuration
•Properties of a Circle
•Statistics

Q.Why you will love Maths after the lessons?
1.I will help break down concepts to the level of your understanding.
2.I will make sure that I explain all the steps required per topic.
3.At the end of the day, I could've made sure you know and understand the requirements for each question.This will be achieved by exposing you to final examination papers.
4.I make sure I teach all the topics based on the syllabus.
5.I also share useful study tips to make you excel academically.

NOTE; I am a straight forward Tutor who strives to bring out the best in every student on time.I am always innovative by using interactive mode of Teaching Methodology.

I use well structured notes and past papers.Once I teach my student/s a topic, I make sure the lesson is concluded by attempting Examination Questions together.
In addition, each lesson takes 1 hour (60 minutes) duration.That time , is fair enough to have had all the lesson objectives met.

Booking me for a class guarantees excellent grades.
I look forward to be your Tutor.Don't forget to share your review after the lesson/s.I thank you.
Best regards,
~Kelvin

يحيى

4.73

(137)

Do you feel that physical laws are just complicated symbols? Or that chemical equations are a puzzle that is difficult to solve? It's time to change that view!
Why choose our private lessons?
We don't just explain the curriculum; we build a "scientific mindset" capable of analysis and deduction. Our lessons are designed to suit all levels, with a focus on:
• Simplifying basic concepts: Turning dry theories into concrete, real-world examples.
• Smart problem-solving: Learn quick and organized problem-solving strategies to deal with any exam question.
• Curriculum support: Comprehensive coverage of all units (mechanics, electricity, organic chemistry, energy transformations...) in accordance with official examinations.
• Interactive environment: Discussion-based lessons, virtual experiments, and breaking down the fear barrier of the subject.
What will you get in each session?
1. Mind summaries: Concise worksheets that summarize long lessons into one page.
2. Intensive training: Solving past exam papers and making smart predictions for upcoming tests.
3. Regular follow-up: Continuous evaluation of the student's level to ensure progressive development.
4. Time flexibility: (Online/in-person) sessions to suit your study schedule.
Who are these lessons for?
• For middle and high school students who wish to excel.
• For anyone who aspires to get a perfect score in science subjects.
• For students who need a strong foundation before entering university.

Dr.

4.73

(137)

I offer personalized online tutoring (via teams , Zoom or Google Meet) and in-home sessions for students of all ages and levels. My lessons are designed to be interactive, creative, and tailored to each learner’s needs, ensuring active engagement and lasting understanding.

With a Ph.D. in Science and 10+ years of teaching experience, I provide flexible session lengths (1-2 hours) and adapt my methods—whether through discussions, multimedia, or hands-on examples—to make complex topics accessible and exciting. Let’s make learning both effective and enjoyable!

Course Subject:
Biology: Biotechnology, Biochemistry, Immunology, Cell and Molecular Biology, Molecular Genetics, Anatomy and Physiology of animals and plants

Chemistry—comprehensive coverage of all five core disciplines to ensure a holistic understanding of the molecular world.

Organic Chemistry: Reaction mechanisms, stereochemistry, synthesis planning, and nomenclature.

Inorganic Chemistry: Coordination chemistry, periodicity, molecular symmetry, and bio-inorganic systems.

Physical Chemistry: Thermodynamics, quantum chemistry, kinetics, and electrochemistry.

Analytical Chemistry: Spectroscopy (NMR, IR, UV-Vis), chromatography, method validation, and data interpretation.

Biochemistry: Enzyme kinetics, metabolic pathways, protein structure, and bioenergetics.

Course Level: Tailored for High School (IB/AP/A-Levels), University/College (Undergraduate & Graduate), and Adult Learners seeking to strengthen fundamentals or prepare for competitive exams.

Location of the Lessons: Live, interactive, and high-quality sessions delivered online—learn from home in the Netherlands or anywhere worldwide, Face to face- at your home or at my place.

Malek

4.73

(137)

Ich studiere Computer Engineering an der RWTH Aachen und biete individuelle Nachhilfe in Mathematik, Physik und naturwissenschaftlichen Grundlagen an – von den ersten Grundlagen bis zur Oberstufe und zum Abitur.
Besonders wichtig ist mir, dass Schülerinnen und Schüler den Stoff wirklich verstehen, anstatt Formeln und Lösungswege nur auswendig zu lernen. Ich erkläre Zusammenhänge Schritt für Schritt, passe Tempo und Schwierigkeitsgrad individuell an und arbeite gezielt an den Stellen, an denen noch Unsicherheiten bestehen.
Wir können gemeinsam:
- aktuelle Themen aus dem Unterricht aufarbeiten,
- Hausaufgaben und Übungsaufgaben besprechen,
- Wissenslücken systematisch schließen,
- uns auf Klassenarbeiten, Klausuren oder das Abitur vorbereiten,
- und schwierige Themen mit zusätzlichen Aufgaben festigen.
In Mathematik kann ich unter anderem bei Algebra, Gleichungen, Funktionen, Geometrie, Trigonometrie, Analysis, Vektorrechnung und Wahrscheinlichkeitsrechnung helfen.
In Physik unterstütze ich unter anderem bei Mechanik, Elektrizitätslehre, Energie, Schwingungen/Wellen und weiteren schulischen Themen.
Durch mein Ingenieurstudium beschäftige ich mich selbst intensiv mit höherer Mathematik, Physik und technischen Anwendungen. Daher kann ich bei Bedarf auch fortgeschrittenere Schülerinnen und Schüler sowie Studienanfänger in mathematischen Grundlagen unterstützen.
Der Unterricht kann auf Deutsch oder Englisch stattfinden und wird individuell an das Niveau und die Ziele des Schülers bzw. der Schülerin angepasst.
Mein Ziel ist, dass Mathematik und Physik nicht mehr wie eine Sammlung zufälliger Formeln wirken, sondern Schritt für Schritt logisch und nachvollziehbar werden.

Sonu

4.73

(137)

15+ Years of Teaching Experience | Master’s in Chemistry | 3,000+ Students

-International Chemistry Specialist: Experienced in teaching IB Chemistry (HL/SL), A-Level, AS Level, IGCSE, GCSE, Edexcel and AQA, with a strong focus on international examination requirements.
-Concepts Made Simple: I break complex topics such as Organic Chemistry, Chemical Bonding, Equilibrium, Electrochemistry, Redox, Acids & Bases and Energetics into clear, logical steps—so students understand rather than memorise.
-Exam-Focused Learning: Lessons combine concept building, exam-style questions, past papers, AO1/AO2/AO3 skills, mark-scheme techniques and common exam traps.
-Personalised 1-to-1 Classes: Every lesson is adapted to the student's level, learning style, syllabus and academic goals.
-Proven Experience: I have taught 3,000+ students and have also contributed to CBSE curriculum development for Allen Career Institute.

-My goal is simple: make Chemistry understandable, engaging and exam-ready while building genuine confidence.

Federica

4.73

(137)

Hi, my name is Federica and I am an astrophysicist. I obtained my PhD from ETH Zürich and, for over ten years, I have been working in international research teams, contributing to space missions such as ESA Euclid and NASA Roman, and collaborating with scientists from all over the world.

For more than ten years, I have also been active in teaching, tutoring and science communication. In my teaching approach, I consider it essential to listen to the student, understand their needs, and identify the way they reason and learn best. This is key to creating a truly personalised learning path that motivates them to engage with the subject and gradually take on more advanced learning challenges.

I helped several students to strengthen the foundations, identify strategic points early, and progressively work towards more advanced problem-solving and exam preparation.

I do not believe in a standard “one-to-many” lesson, but rather in a learning path designed to genuinely consolidate the student’s knowledge, help them become progressively more independent, and make them aware of the practical and interdisciplinary applications that a particular subject can have in their academic journey.

I am fluent in Italian and English, and I am currently strengthening my knowledge of French. Thank you for your attention.