Mitosis and Meiosis - Third Preparatory Grade - First Semester - Helwan

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Mitosis and Meiosis - Third Preparatory Grade - First Semester

From 43.29 € /h

First: Mitosis

✳️ Definition:
It is a cell division that occurs in somatic cells (such as skin and muscle cells), and its purpose is growth and replacement of damaged cells.

🔁 Result:
This results in two perfectly identical cells, each with the same number of chromosomes (46 in humans).

📘 Its importance:
Growth
- Tissue regeneration
Wound healing

🧠 Stages of mitosis:
1. Prophase: Chromosomes begin to appear
2. Metaphase: The chromosomes are aligned in the middle of the cell.
3. Anaphase: The chromosomes separate and move to the ends.
4. Final: Two new nuclei are formed

---

🧪 Second: Meiosis

✳️ Definition:
It is a division that occurs in reproductive cells (eggs and sperm), and its purpose is to reduce the number of chromosomes by half in preparation for reproduction.

🔁 Result:
This results in four asymmetrical cells, each containing half the number of chromosomes (23 in humans).

📘 Its importance:
- Production of reproductive cells
Maintaining a constant number of chromosomes in living organisms
- Increase genetic diversity among individuals

🧠 Stages of meiosis:
It consists of two successive divisions:
First division: Reduction in the number of chromosomes
- Second division: Similar to mitosis, to form 4 cells

Extra information

Bring your computer, pen, and notebook.

Location

Online from Egypt

About Me

Dr. Hadeer Habka, Science School, follows the same principle as us 💪🏻♥️ She explains integrated science (physics, chemistry, biology) for all levels (secondary, preparatory, and primary) ✅ Recitation after each lesson ✅ Exams and monitoring of student progress ✅ Continuous review ✅ Comprehensive exams with each unit, and I guarantee you the highest grade in integrated science 😊💯

Education

Bachelor of Science and Education
Helwan University
Very good grade with honors
Master's in Curriculum and Methods of Teaching Science
She has completed numerous Egyptian and international courses and certifications.

Experience / Qualifications

7 years of experience teaching the integrated science curriculum for all grade levels
(Secondary - Preparatory - Primary)
Explaining and simplifying the curriculum, conducting comprehensive reviews, and administering exams on an ongoing basis.

🌟 Are you looking for a fun way to understand science?
I am Dr. Hadeer Habka, a teacher of the integrated science curriculum for all educational levels, with experience in teaching and laboratories, and with a style that makes science an exciting adventure!

🔬 Why did you choose me?
- By explaining science in a story-based and interactive way that makes the student love the subject.
- I make every scientific experiment a fun moment of discovery
I use visual aids and educational games suitable for each age group.
I have experience in simplifying complex concepts for children and teenagers.
- And I like to incorporate Egyptian heritage into the explanation in an innovative way (like the pharaohs and ancient scientific wonders!)

🎯 The stages I work with:
From elementary to high school, with methods that suit each age group.

📚 The lessons could be:
Online or in person
Individuals or small groups
- Includes explanations, applications, and interactive questions

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

The class is taught in

English

French

Arabic

Skills

Science

Biology

Availability of a typical week

(GMT -05:00)

New York

Online via webcam

Mon

Tue

Wed

Thu

Fri

Sat

Sun

00-04

04-08

08-12

12-16

16-20

20-24

How the body's systems work to meet the needs of living organisms - Fourth Grade - First Semester

28.86 € /h

How do the body's systems work together?
- The digestive system: It digests food and converts it into simple nutrients (glucose, amino acids, fatty acids) that reach the blood to nourish the cells.
- The respiratory system: Oxygen enters the body and carbon dioxide exits, ensuring the continuation of cellular respiration within the cells.
- The circulatory system (heart and blood vessels): It transports food and oxygen to all parts of the body, and removes waste products such as carbon dioxide and urea.
- The excretory system (kidneys and skin): gets rid of waste products resulting from vital processes such as urine and sweat, in order to maintain the body's internal balance.
- The nervous system: It regulates the functioning of different organs and sends signals to control movement and respond to external stimuli.
- Muscular and skeletal system: Provides movement and support for the body, and helps protect internal organs.
- The immune system: It defends the body against microbes and foreign substances, thus maintaining health.
Summary
Each system has a specific function, but the integration of these systems is what ensures human survival. Digestion provides food, respiration provides oxygen, blood circulation delivers both to the cells, excretion removes waste, and the nervous system coordinates all of this.

Microbes - First Preparatory Grade - First Semester

43.29 € /h

What are microbes?
Microbes are microscopic organisms that cannot be seen with the naked eye; some are beneficial and some are harmful.
- They are found in the air, water, soil, and on the bodies of living organisms.

🔬 Types of microbes
Viruses: The smallest living organisms, they cause diseases such as influenza and AIDS.
- Bacteria: Some are beneficial (such as yogurt bacteria), and some are harmful (such as typhoid bacteria).
- Fungi: such as yeast used in bread making, including harmful ones like a fungus that causes skin diseases.
- Protozoa: such as amoebas that cause dysentery.

🌍 Where it is found
- In the soil, water, and air.
- Inside the bodies of living organisms and on their surface.

✅ Benefits of microbes
- Production of some medicines, such as penicillin, from fungi.
- Manufacturing foods such as yogurt and cheese using beneficial bacteria.
- Analysis of organic matter and restoration of elements to the soil.

⚠️ The dangers of microbes
- It causes serious diseases such as: typhoid, dysentery, influenza.
Food spoils when it grows on it.

🛡️ Ways to prevent microbes
- Wash your hands thoroughly before and after eating.
- Keep food in the refrigerator.
- Boil or sterilize the water before drinking.
- Getting vaccinated against diseases

Mr.

5.0

(11)

🎓 International Education Academy
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Checkpoints
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📌 دروس خصوصية في المنزل / أونلاين فردي أو مجموعات صغيرة
جميع المواد لكافة الشهادات: IGCSE – American -British -- SAT – IB – النظام الكندي –
مع أكاديمية التعليم الدولية للتفوق الدراسي

🎓 أكاديمية التعليم الدولية
دروس خصوصية وأونلاين عالية الجودة لكل الشهادات الدولية والمحلية

نحن مجموعة من المدرسين والدكاترة والمهندسين المحترفين نعمل في مدارس دولية كبرى، ونقدّم الآن كورسات قوية وشاملة في جميع المواد:

✅ أولًا: المنهج البريطاني
IGCSE: المستوى العادي والمتقدم

برامج كامبردج وEdexcel

✅ ثانيًا: المنهج الأمريكي
SAT I وSAT II

Digital SAT، ACT، EST

دعم شامل في الرياضيات ورفع معدل الـ GPA

✅ ثالثًا: البكالوريا الدولية (IB)
المستوى العادي (SL)
المستوى المتقدم (HL)

🧠 ما الذي يميزنا؟
🔹 اختبار تحديد مستوى مجاني لتحديد نقاط الضعف والتركيز عليها
🔹 شرح المنهج بالكامل بخطط تعليمية فردية
🔹 واجبات واختبارات مصححة، ومتابعة مستمرة
🔹 مدرسون معتمدون من مؤسسات دولية
🔹 شهادات حقيقية وآراء طلاب تثبت النجاح
🔹 دروس فردية أو مجموعات صغيرة مركزة
🔹 متوفر أونلاين أو في المنزل حسب راحتك
🔹 نظام تحفيزي مع جوائز وتقارير أسبوعية

📍 نغطي مناطق القاهرة والإسكندرية:
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Anh

5.0

(11)

In these tailored Maths and Physics sessions, I combine tutoring with mentoring to guide your understanding and help you master essential concepts. My approach adapts to your natural learning style, ensuring that each lesson is intuitive, engaging, and effective.

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__________________________________________________________________________________

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__________________________________________________________________________________

My name is Anh, and I was born and raised in the U.K. With over 10 years of international experience tutoring Maths, Sciences, and Engineering from Middle School to University Level, I’ve supported over 80 students worldwide in unlocking their full potential.

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Mohamed

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(11)

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.
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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 (🇬🇧).
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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,

Dr.

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(11)

I have successfully instructed this course for a span of five years, catering to a cohort of high-achieving students who consistently attained commendable results. With a cumulative experience of 20 years in the field of biology, I bring a wealth of knowledge and expertise to the classroom. Moreover, I possess a decade of experience specifically in online teaching, honing my skills in effectively delivering course content and engaging students in virtual learning environments.

Course Description: AP Biology

Course Overview:
The AP Biology course is designed to provide high school students with a comprehensive understanding of the principles and concepts of biology. This course is equivalent to a college-level introductory biology course and aims to prepare students for the AP Biology exam administered by the College Board.

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Course Outline:

Unit 1: Chemistry of Life
- Introduction to biological macromolecules (carbohydrates, lipids, proteins, nucleic acids)
- Cell structure and function
- Enzymes and metabolic pathways
- Energy and ATP

Unit 2: Cell Structure and Function
- Membrane structure and transport
- Prokaryotic and eukaryotic cells
- Cell cycle and cell division

Unit 3: Cellular Energetics
- Photosynthesis
- Cellular respiration
- Energy transfer and ATP production

Unit 4: Genetics
- Mendelian genetics
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- Genetic engineering and biotechnology

Unit 5: Heredity
- Inheritance patterns
- Chromosomal basis of inheritance
- Population genetics

Unit 6: Evolutionary Biology
- Natural selection
- Evidence for evolution
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Unit 7: Ecology
- Populations and communities
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- Conservation biology

Assessment and Grading:
Assessment in this course will include a variety of methods, such as quizzes, tests, laboratory reports, projects, and the AP Biology exam. Grades will be based on student performance in these assessments, as well as class participation and engagement.

Note: This course description is a general outline and may vary based on the specific curriculum and requirements of your educational institution.

Chiwila

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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.

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Robert

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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.

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Michael

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Expert Science & Chemistry Tutor – IGCSE | A-Level | IB | KS3
Online & In-Person Lessons Available in Madrid.

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Work with me in your IB journey. I have over 6 years of teaching experience with international students from Europe, Asia and America. I give home works and assignments on a regular basis.
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The International Baccalaureate (IB) offers several programs in Europe, including the IB Diploma Programme, the European Baccalaureate, and the IB's Primary Years Programme, Middle Years Programme, and Career-related Programme:

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The SAT exam is one of the major steps you need to go through in your life; it's a step that is going to determine your college, your university, and your future as a whole. As with a lot of things in life, it can be a hard step, and there is no shame in asking for help. Here comes my role: I will help you overcome your problems and your difficulties. My job here is to help you achieve your desired results and unlock your potential. Simply put, we will go through every lesson, every unit, and every chapter. We will understand the concept of each lesson, with clear examples to follow. After each one, you will be tested, and after finishing your program, you will be tested on it. That's my plan for my students, so if you are interested, you can easily contact me.

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Passionate and dedicated teacher with five years of experience fostering an engaging and inclusive learning environment. I'm committed to promoting student success through personalized instruction, differentiated learning strategies, and active student engagement. Proven track record of implementing innovative teaching methods and achieving measurable improvements in student academic performance.
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Christoph

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Are you looking for help with mathematics?

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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.

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Biology Courses – All Levels

With a Master's degree in Microbiology and Virology and solid experience in biotechnology and scientific research, I offer courses adapted to each level and objective, from college to university.

Biology Courses – All Levels
Do you want to understand biology clearly and effectively? I offer courses adapted to all levels, from middle school to university.
✨ What I offer:
✅ General biology, genetics, microbiology,...
✅ Personalized and interactive courses
✅ Homework help and exam preparation
✅ Online via Zoom

Lea

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(11)

I am a Pre-Med Neuroscience recent graduate from the University of Miami with a 3.86 GPA, and a passion for teaching. I offer comprehensive academic tutoring in Sciences (Biology, Chemistry) and Languages (Spanish, French). I am fluent in Spanish and French and can provide immersive language practice or explain complex science concepts in your preferred language.
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