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Since December 2025
Instructor since December 2025
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Biology and Life Sciences - Classes to level knowledge of Biology and Sciences for Secondary and High School students
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From 56 C$ /h
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Biology and Science classes for ESO and Bachillerato

I offer personalized classes in Biology, Natural Sciences, Physics and Chemistry (basic, intermediate and advanced levels), focused on reinforcing content, improving academic performance and fostering critical scientific thinking.
I use up-to-date materials, practical exercises, simple experiments, and digital resources to facilitate understanding of the concepts. Classes can be for ongoing support, exam preparation, or intensive reinforcement.

Are you a foreigner student in Spain and need science classes in English/Spanish? -> I offer personalized classes in Biology, Natural Sciences, Physics, and Chemistry (basic, intermediate, and advanced levels), focused on reinforcing content, improving academic performance, and fostering critical scientific thinking.


👨‍🏫 Methodology
• Clear explanations tailored to each student
• Visual resources (concept maps, diagrams, animations)
• Interactive exercises and continuous reinforcement
• Customized materials according to academic needs
• Progress monitoring and communication with families (if desired)
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📘 Courses and classes for ESO (Compulsory Secondary Education)

Natural Sciences (1st–4th ESO)

This course is designed to help you understand the natural world: living things, ecosystems, human anatomy, energy, matter, and chemical changes. Everyday examples, simple experiments, and visual activities are used to reinforce complex concepts.

Biology and Geology (3rd–4th year of ESO)

Focused on cell structure, basic genetics, biodiversity, geology, Earth dynamics, and sustainability. Ideal for students looking to improve their scientific foundation or prepare for the transition to high school.

General reinforcement in Science

For students who need to improve study habits, organization, problem-solving, summarizing, and exam preparation.



📚 Courses and classes for High School

Biology (1st and 2nd year of High School)

Classes focused on official curriculum content: biochemistry, cytology, molecular genetics, human physiology, microbiology, biotechnology, and ecology. Includes specific exam preparation, scientific text analysis, and practice exercises similar to the EBAU (University Access Assessment).

Earth and Environmental Sciences (CTMA)

Study of climate dynamics, natural resources, sustainability, environmental impacts, and land management. Perfect for students seeking to improve their understanding and gain an applied perspective on the environment.

Preparation for the EBAU / University Entrance Exam

Intensive course with:
• Summaries structured by topic
• Official exercises from previous years
• Examination techniques
• Explanation of key models and processes

🔬 Special courses / Optional workshops
• Introduction to modern genetics and biotechnology
• Scientific Method for Students
• Home microbiology workshop (safe, basic level)
• Introduction to bioinformatics (very basic level)
• Support in research work (4th year of ESO and Baccalaureate)
Extra information
Ideally, a summary of the content being covered in class and a brief preliminary assessment of the weak points to be addressed should be included. This allows for the preparation of personalized content for each student and the development of a support methodology.
Location
location type icon
Online from Spain
About Me
I am an active postgraduate student with extensive scientific training and academic experience in areas such as genetics, biotechnology, microbiology, ecology, and health sciences. My teaching approach combines conceptual rigor with a close and human approach. I consider myself a friendly but serious professor, committed to the student's real progress and to creating a safe environment to learn without fear of making mistakes.

I have a genuine vocation for teaching, especially aimed at students seeking other learning methods: curious young people, students who are easily distracted, students with academic blocks, or those who believe that "science is not for them." I am passionate about demonstrating that anyone—with the right guidance—can understand and enjoy even the most complex topics. I use updated materials, practical exercises, simple experiments, and digital resources to facilitate the understanding of concepts. Classes can be for continuous support, exam preparation, or intensive reinforcement.
Education
I hold a degree in Biotechnology Engineering and a Master's degree in Biotechnology and Life Sciences, both obtained from the Universidad Andres Bello in Chile. I am currently concluding research projects in Spain, with intentions to pursue a PhD in the future.
Experience / Qualifications
- Graduated with honors (Engineering) in Biotechnology, ranking 4th out of 33 in the graduating class.
- Graduated with honors, Summa Cum Laude, ranking 2nd out of 7 in the graduating class.
Age
Children (7-12 years old)
Teenagers (13-17 years old)
Adults (18-64 years old)
Seniors (65+ years old)
Student level
Beginner
Intermediate
Duration
30 minutes
45 minutes
The class is taught in
Spanish
English
Availability of a typical week
(GMT -04:00)
New York
at teacher icon
Online via webcam
Mon
Tue
Wed
Thu
Fri
Sat
Sun
00-04
04-08
08-12
12-16
16-20
20-24
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PHYSICS contents :
•Measuring quantities
•Weight and Mass
•Density, Mass and Volume
•Motion
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•Light and it's properties properties
•Gas Laws
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Each class session takes 60 minutes duration. Within this time, a student should have COVERED ALL the class OBJECTIVES.
All students are required to ASK QUESTIONS for CLARIFICATIONS as the lesson PROGRESSES.
AIM: To help you pass Exams with ease.
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1st lesson is backed
by our
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• Atomic structure and periodic trends
• Chemical bonding and molecular structure
• Intermolecular forces
• Stoichiometry and quantitative chemistry
• Thermochemistry and thermodynamics
• Chemical kinetics
• Chemical equilibrium
• Acids, bases, and buffers
• Solubility and equilibrium
• Redox reactions and electrochemistry
• Laboratory concepts and data analysis
• Experimental design and error analysis
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• Exam strategies and time management

### Advanced Organic Chemistry

For students taking university-level or advanced Chemistry:

• Functional groups and nomenclature
• Reaction mechanisms
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Personalized 1:1 support tailored to your learning style

Exam-focused strategies to boost confidence and grades

Simplified explanations of complex topics

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Help with homework, projects, revision, and lab reports

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Kelvin
These lessons are best for; IB, IGCSE, GCSE, EDEXCEL, CAMBRIDGE CHECKPOINT and CAMBRIDGE O'LEVELS

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•Measuring quantities
•Weight and Mass
•Density, Mass and Volume
•Motion
•Forces
•Light and it's properties properties
•Gas Laws
•Thermal Dynamics
•Momentum
•Machines
•Waves
•Sound
•Electromagnetic Spectrum
•Electricity
•Magnetic induction
•Transformer
•Radiation

Topics to be covered in CHEMISTRY are:
•Atomic structure
•Chemical Bonding
•Electronic configuration
•The Periodic Table and the Trends
•Extraction of Metals
•Thermal Decomposition
•Oxides
•Acids Bases and Salts
•Mole concepts
•Chemical Reactions
•Chemical Energetics
•Redox Reactions
•Non Metals
•Chemistry of the Environment
•Organic Chemistry

Topics to be covered in BIOLOGY are:
•Characteristics and classification of living organisms.
•Magnification of cells
•Types of Cells
•Cells and Solution Concentrations •Reproduction in Plants
of Animals
•Genetic Recombination
•Nutrition in Animals
•Plant Nutrition
•Heredity
•Anomalies in Animals and Plants
•Excretion in Animals
•Endocrine System
•Immune System
•Nervous System
•Adaptation of living organisms on their environment
•Reproduction in Animals
•Animal feeding levels


NOTE📌
Each class session takes 60 minutes duration. Within this time, a student should have COVERED ALL the class OBJECTIVES.
All students are required to ASK QUESTIONS for CLARIFICATIONS as the lesson PROGRESSES.
AIM: To help you pass Exams with ease.
Good-fit Instructor Guarantee
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Contact Diego