درس علوم : الأحماض والقلويات والأكاسيد الفلزية واللافلزية

From 50.92 CNY /h

فى هذا الدرس نتعرف على المجموعات الذرية ومن خلالها نتعرف كيفية تكوين مركب سواء حمضي او قلوي
نتعلم كيف نفرق بين الأحماض والقلويات وكيفية تسمية المركبات الكيميائية سواء القلوية او الحمضية
نتعرف على خواص القلويات والأحماض
وما هى الأحماض القوية والضعيفة
والفرق بين الأكاسيد الفلزية واللافلزية واخيرا الأمطار الحامضية

Extra information

أحضر كتابك وكشكولك وركز فيما اقوله

Location

Online from Egypt

About Me

أنا دعاء عندى ٢٤ سنة لدى هواية الشرح من سن مبكر وانا احب ان ادرس ل زملائي واصحابي
وبدأت أدرس لبعض الطلبة مادة العلوم والكيمياء لشدة حبي لهم
وانا جديرة ان اكون عند حسن ظنكم

Education

جامعة الفيوم تخصص تمريض
تخرجت بمعدل جيدجدا مع مرتبة الشرف
اعمل فى منصة تعليمية وجها لوجه
واعطى دروس خصوصية
واعمل على متابعه كل جديد لدى المناهج التعليمية
واشتغل فى تخصصى أيضا

Experience / Qualifications

خبرتي تزيد عن سنتين فى مجال التدريس
وبالأخص فى مجال العلوم والفيزياء والكيمياء
وادرس بشكل جيد مع المتابعه مع الطلبة

Age

Children (7-12 years old)

Teenagers (13-17 years old)

Student level

Intermediate

Duration

30 minutes

45 minutes

The class is taught in

Arabic

Skills

Science

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

Mavi

5.0

(21)

I am Mavi, a physics engineer working at an aerospace company.
I have been teaching private lessons at the primary, secondary, high school, and university preparatory levels for 11 years. I teach mathematics, physics, chemistry, and science. I have a good command of the curricula of IB, IGCSE, American, Hong Kong, and international schools.

Additionally, I hold the position of president at the Astronomy Society, where I foster my students' interest in astronomy and science beyond the lessons. I prepare the learning environment by incorporating experiments and exploration, moving away from rote education. I often bring experimental materials to class, aiming to make learning memorable through hands-on experiments.

As an educational mentor, I approach my students as if they were my siblings, valuing creativity. I have a deep passion for mathematics, physics, and science. I am dedicated to helping students understand and learn because life encompasses both SCIENCE and ART. The more people I can inspire to know, understand, and love mathematics, physics, and chemistry, the more proud I am.

Are you curious about how nature works?

Let's explore together!

Mohamed

5.0

(21)

الفيزياء والكيمياء هي البوابة لفهم جميع العلوم، كطالب علوم سوف تحتاج إلى أن تكون قادرًا على فرز العديد من الميزات المعقدة لتصبح طالبًا علميًا حقيقيًا يتمتع بعقل ناقد وفضولي. ولهذا السبب قمت بتصميم هذه الدورة لمساعدة الطلاب على الاستعداد لامتحاناتهم والعام الدراسي القادم لملء الفجوات التي لديهم في الرياضيات والعلوم.
أود أن أخبرك أنني باحث شاب ويمكنني أيضًا مساعدتك في اكتساب المعرفة الأساسية ببرنامج Microsoft Office والبرامج الأساسية الأخرى لمسيرتك المهنية.

Anh

5.0

(21)

If you're preparing for resit exams and want to ensure you succeed, I’m here to help. These tailored sessions are designed specifically to support you in mastering the material and boosting your confidence. We'll focus on addressing any areas of concern, revisiting missed fundamentals, and reinforcing your understanding to tackle any future challenges with ease.

Whether you're tackling:
• A-Levels
• International Baccalaureate (IB)
• Advanced University courses
• GCSEs

You’ll gain the confidence and knowledge to master the curriculum and approach future challenges with ease.

Contact me now for availability, and let's schedule your first session soon. I look forward to working with you!
__________________________________________________________________________________

I'm actively supporting students from top high schools and universities worldwide, including:

High Schools:
• International School of The Hague (ISH)
• The British School in The Netherlands (BSN)
• The British School of Amsterdam (BSN)
• International School Rijnlands Lyceum Oegstgeest (ISRLO)
• The European School The Hague (ESH)

Universities:
• ETH Zurich - Swiss Federal Institute of Technology (ETH Zurich)
• Imperial College London (+ Business School) (ICL)
• University College London (UCL)
• King’s College London (KCL)
• Delft University of Technology (TUDelft)
• University of Amsterdam (UvA)
• University of Groningen (RUG)
• Leiden University (LU)
• Hogeschool Inholland University of Applied Science (Inholland)
• Queensland University of Technology (QUT)
• University of Queensland (UQ)
• Griffith University (Griffith)
__________________________________________________________________________________

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.

I have a fun, ambitious, and outgoing personality, and I’m passionate about music, cooking, and trying new things. In my tutoring and mentoring, I am patient, adaptable, and committed to meeting the unique needs of each student.

I work as an Engineering Specialist/Consultant, holding:
• Master’s degree in Aeronautical Engineering from Imperial College London,
• AAA* A-Level in Further Maths and Physics,
• Straight As and A*s in (GCSE) Maths, Physics, Chemistry, Biology, English, and Geography.

Having been mentored and tutored myself, I understand the challenges students face. Through my own experiences of overcoming obstacles and achieving success, I’m passionate about helping others do the same. Let’s work together to ensure you reach your full potential, both academically and personally!

Chiwila

5.0

(21)

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!

Michael

5.0

(21)

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

Are you looking for a dedicated, experienced, and results-driven science tutor to help you or your child excel in school or exams? Whether you're preparing for IGCSE, A-Level, IB, or Coordinated Sciences, I’m here to help you achieve your goals.

✅ Subjects Offered:

Chemistry (IGCSE, A-Level, IB, Edexcel, AQA, Cambridge)

Coordinated Sciences (Double Award)

General Science (KS3 & KS4)

Exam preparation and lab skills (Paper 3/ practical-based support)

🧪 About Me:
I’m a qualified and passionate science teacher with over 10 years of experience teaching in international schools across Spain, the UK, and the Middle East. I currently work at a leading international school in and specialise in Chemistry and Coordinated Sciences.

🌟 What You’ll Get:

Personalized 1:1 support tailored to your learning style

Exam-focused strategies to boost confidence and grades

Simplified explanations of complex topics

Friendly, patient, and engaging lessons

Help with homework, projects, revision, and lab reports

📍 Location:

Online worldwide via Zoom/Google Meet

In-person in Madrid, flexible hours available

🎯 Who is this for?

Students aiming for top grades in science and chemistry

Those who need extra support understanding key concepts

IB or A-Level students needing help with Internal Assessments or lab work

📩 Message me today to book your first lesson or ask any questions. Let’s boost your science skills and exam success together!

Imad

5.0

(21)

محامي ذو خبرة ومقدم خدمات قانونية

مرحبا عزيزي العميل. تعرف على محترفك القانوني. أنا حاليًا محامٍ ممارس، وكاتب ماهر، وباحث عبر الإنترنت، أوفي بما وعد به بالضبط. لقد كانت مهنة المحاماة والبحث والكتابة هي شغفي منذ السنوات الأولى من مسيرتي القانونية، ومن خلال التعلم والخبرة، قمت بصقل مهاراتي بشكل كافٍ في هذه المجالات. بالإضافة إلى ذلك، أنا حاليًا أسعى للحصول على درجة الدكتوراه، وهي درجة أعتقد أنها ميزة إضافية لخبرتي. لا تتردد في تكليفي بمهمتك وتوقع الأفضل من خدماتي. شكرا لكم مقدما، وابقوا آمنين.
سأوجهك في هذا الدرس خلال عملية إجراء البحث القانوني وكتابة المستندات القانونية.

- البحث القانوني: سوف يشرح المعلم كيفية إجراء البحث القانوني، وهي مهارة حاسمة لأي شخص يعمل في المجال القانوني. يتضمن ذلك فهم كيفية استخدام قواعد البيانات القانونية، وكيفية العثور على القوانين واللوائح والسوابق القضائية وتفسيرها، وكيفية مواكبة التطورات القانونية الأخيرة. سيغطي المعلم أيضًا كيفية تحليل المشكلات القانونية وتطبيق القانون على سيناريوهات محددة.

- الكتابة القانونية: سينتقل المعلم بعد ذلك إلى الكتابة القانونية، وهي مهارة أساسية أخرى للمهنيين القانونيين. يتضمن ذلك تعلم كيفية كتابة المستندات القانونية المختلفة مثل الملخصات والمذكرات والعقود والآراء القانونية. سيقدم لك المعلم نصائح حول كيفية الكتابة بشكل واضح ومقنع، وكيفية تنظيم حججك، وكيفية الاستشهاد بالمصادر القانونية بشكل صحيح.

- تمارين عملية: طوال الدرس، سيقدم المعلم تمارين عملية لمساعدتك على تطبيق ما تعلمته. قد يتضمن ذلك البحث في مسألة قانونية معينة أو صياغة مستند قانوني.
- التعليقات والتحسين: سيقدم لك المعلم ملاحظات حول عملك، مما يساعدك على تحسين مهاراتك في البحث والكتابة القانونيين. وسوف يشيرون إلى أي مجالات ضعف ويقدمون اقتراحات للتحسين.

تم تصميم هذا الدرس لأي شخص مهتم بالقانون، سواء كنت طالب قانون، أو محترفًا قانونيًا يتطلع إلى تحسين مهاراته، أو شخصًا يفكر في العمل في القانون. فهو يوفر أساسًا متينًا في البحث القانوني والكتابة، وهما من أهم المهارات لأي محترف قانوني.

Dorcas

5.0

(21)

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.
I offer home tution services for igcse and other curricular.
I tutor learners in both lower and upper grades English, Maths and Science and other subjects if the need be.
Duration per session is an hour and above.

Mahmoud

5.0

(21)

مرحباً ايها الطلاب! هل تجدون صعوبة فى تعلم مواد العلوم وتحديداً مادة الكيمياء. ربما يرجع هذا الى أن الكيمياء تحتوى على بعض المفاهيم أو المصطلحات الصعبة أو المعقدة. اذا كنتم من هولاء فلا داعى الى القلق!! أهلا ومرحباً بكم طلابى فى المكان المناسب لحل هذا المشكلة وذلك عن طريق دروس تبسيط العلوم وخاصة الكيمياء. سنتعلم معاً من خلال هذه الدروس كيفية التعامل مع الامور و المصطلحات صعبة الفهم، وذلك لانى عندى خبرة كبيرة تمتد الى اكثر من 15 عام في نقل المفاهيم المعقدة بطريقة واضحة وسهلة وبسيطة. هدفي هو جعل العلوم والكيمياء بشكل عام والكيمياء العضوية بشكل خاص رائعة ومفهومة للجميع. كمعلم متفاني، أقوم بإنشاء بيئة تعليمية تفاعلية ومحفزة لطلابي باستخدام احدث الطرق. عندى استعداد لمشاركة شغفي وتوجيه كل طالب نحو التفوق و النجاح في مجال العلوم والكيمياء العضوية وفى الدراسة بشكل عام حيث أننى اعمل كموجه للطلاب فى أحدى الموسسات الدولية.

هذا الى جانب أن لدي مهارات اتصال وعرض مميزة وأتحلى بالصبر والهدوء عند التدريس. بالأضافة الى أنى أتابع باستمرار تقدم طلابي وأقيم فهمهم بانتظام من خلال الحل المستمر للأسئلة الموضوعية حيث أننى أهتم بالفهم أكثر من الحفظ. وعلى الجانب الاخر، فأنا أيضاً أحافظ على المتابعة الجيدة مع أولياء الأمور. نهجي في التدريس موجه نحو تحقيق أعلى النتائج، مع التركيز على مساعدة الطلاب على فهم و إتقان المعلومات.

Emmanuel

5.0

(21)

Dive into the dynamic world of engineering and science with this comprehensive course designed for aspiring engineers and scientists. This course is structured to provide you with a robust foundation in key principles and practices that are essential in these fields.

You'll explore fundamental concepts in physics, chemistry, and mathematics, and learn how to apply these principles to solve real-world problems. The course covers critical topics such as mechanics, thermodynamics, materials science, and electrical circuits.

In addition to theoretical knowledge, you'll engage in hands-on projects and experiments that illustrate practical applications. You'll develop skills in data analysis, experimental design, and technical communication, preparing you for advanced study or a career in engineering and science.

Join us to unlock the potential of engineering and science, and start your journey towards innovation and discovery.

Mian

5.0

(21)

This tutoring session is designed to support students in achieving a deeper understanding of their subjects through personalised guidance and engaging activities. Each lesson will focus on core concepts, problem-solving strategies, and practical applications to reinforce learning. Tailored to individual learning styles, these sessions aim to build confidence, enhance critical thinking, and foster a positive attitude toward learning. Suitable for all levels, whether you’re looking to solidify foundations or prepare for exams.

Dr.Ibrahim

5.0

(21)

تُقدّم هذه الدورة مقدمةً متكاملةً للمجالات الأساسية للعلوم، بما في ذلك الأحياء والفيزياء وعلوم الأرض وعلوم البيئة. سيستكشف الطلاب المفاهيم والمبادئ والمناهج العلمية من خلال التجارب العملية والملاحظات وأنشطة حل المشكلات. يُركّز المقرر على تنمية الثقافة العلمية والتفكير النقدي وفهم المنهج العلمي. تُشجّع الدورة الطلاب على الفضول تجاه العالم الطبيعي، وتُعدّهم لتطبيق المعرفة العلمية في حياتهم اليومية ودراساتهم الأكاديمية المستقبلية.

Jihen

5.0

(21)

تُعد الرياضيات مادة أساسية في امتحان البكالوريا وتتطلب فهمًا واضحًا وممارسة منتظمة.
في هذه الدورة، أساعد طلاب البكالوريا على إتقان الرياضيات خطوة بخطوة، وفقًا للمنهج الرسمي. تُشرح الدروس بطريقة بسيطة ومنظمة، مع العديد من الأمثلة والتمارين المصممة على غرار الامتحانات.
يركز هذا المقرر على فهم الأساليب، وتجنب الأخطاء الشائعة، واكتساب الثقة لحل المشكلات بشكل مستقل.
هذه الدورة مناسبة للطلاب الذين يرغبون في تحسين مستواهم، والاستعداد بجدية لامتحان البكالوريا، وتحقيق نتائج أفضل.

Dorsaf

5.0

(21)

Chemistry is often taught as a series of facts to memorize, but at its heart, it's a beautiful and logical story about how the world works at the molecular level. As a master student of theoretical and computational chemistry, I don't just teach you what happens; I teach you the fundamental why.
This class is designed for students who want to truly understand chemistry, not just pass a test. Whether you're a high school student grappling with stoichiometry, an undergraduate diving into organic chemistry, or simply a curious mind wanting to understand the world around you, this course is for you. I believe that anyone can understand chemistry with the right guidance.
My goal is to be that guide. I'm here to help you, whether you're feeling lost in class, preparing for final exams, or starting a university course that feels overwhelming. I adapt to each student's unique needs and learning style.

I can help you master:
The Atom and Periodic Table: Understanding the building blocks.
Chemical Bonding: How and why atoms stick together.
Stoichiometry: Mastering mole calculations and chemical reactions.
Solutions and Concentration : Making sense of molarity and dilutions.
Acids, Bases, and pH : Demystifying protons and logarithms.
Thermodynamics and Kinetics: Understanding energy and reaction rates.

And more! Whether it's physical chemistry, organic chemistry, or inorganic chemistry, we can explore it together.
We'll work at your pace, fill in any gaps in your knowledge, and build your confidence step by step.

Jeremy

5.0

(21)

IB Physics is one of the most technically demanding subjects at Diploma level. Success requires more than conceptual understanding — it requires structured exam execution.

This programme is designed for students aiming to move up grade boundaries through disciplined, examiner-aligned preparation.

Each student follows a structured performance cycle:

• Diagnostic assessment of current level
• Concept consolidation with precision
• Command term interpretation training
• Markscheme alignment and structured answer writing
• Timed past-paper simulation
• Error pattern analysis and refinement

Many capable students lose marks due to poor structure, misinterpreted command terms, or lack of exposure to examiner-style questions. These gaps are addressed directly.

Over the past year, students have improved by two to three grade boundaries within eight to ten weeks through targeted intervention and consistent practice.

Sessions are delivered online in a professional, interactive format and are suited to students preparing for mocks, final exams, or IA refinement.

Designed for serious students aiming for 6s and 7s.

Magdalene

5.0

(21)

Mini Makers STEM Lab is a hands‐on, online class where young creators explore early engineering, problem‐solving, and imagination using simple materials they already have at home. Each session features a guided STEM project—like paper helicopters, balloon rockets, marshmallow towers, or DIY parachutes—designed to build confidence, fine motor skills, and curiosity.
Kids follow along step‐by‐step on camera, test their creations, make improvements, and share what they built. The focus is on creativity, exploration, and learning through play. This class is warm, encouraging, and perfect for children who love building, experimenting, and making things with their hands.