Explore our interactive courses organized by grade level
This course presents essential definitions, types, and properties of triangles, quadrilaterals, and circles, along with their relationships. Aimed at 6th-grade students, it helps in understanding and solving problems in plane geometry.
Open courseEnergy, water, air, and nutrients necessary for life.
Open courseThis 6th grade math course introduces the fundamental concepts of area for plane figures (rectangle, square, triangle, circle) and volume for simple solids (rectangular prism, cube, cylinder). It provides calculation formulas, explains units and conversions, and illustrates through concrete examples to aid understanding and practical application.
Open courseOrganizing living species according to simple classification criteria.
Open courseThis 6th-grade math course explains how to collect, organize, and interpret data. It covers frequency tables, graphs (bar and pie charts), and the use of frequencies and percentages to analyze information. Concrete examples and regular summaries aid understanding, building critical thinking and the ability to use data in everyday life.
Open courseThis geology lesson for 6th grade explains what rocks and minerals are, how to observe and describe rocks, introduces major rock families, and highlights their importance in landscapes and for humans.
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Discover BasicThis 6th grade Physics lesson explains the fundamental concepts of mass, volume, and temperature. It covers their definitions, measuring instruments and units, as well as their relationships, illustrated with everyday examples.
Open courseThis physics lesson for 6th graders introduces the basics to understand and describe simple movements. It explains the concept of frame of reference, types of movements (straight, circular, oscillatory), the idea of trajectory, and how to measure speed, with practical examples to help observe everyday motion.
Open courseThis 6th grade chemistry lesson covers mixture separation techniques: dissolution, filtration, and evaporation, with clear examples and summaries to aid understanding.
Open courseThis geology lesson for 6th graders explains erosion mechanisms, responsible agents, material transport and deposition, and human effects to better understand landscape transformation.
Open courseThis 6th grade math lesson clearly explains simple fractions and decimal numbers, how to read and write them, basic operations, their relationship, and practical applications to help students master these concepts.
Open courseThis 6th grade math lesson introduces fundamental geometry concepts: lines, segments, angles, as well as parallel and perpendicular lines. Illustrated with concrete examples and exercises, it helps students understand and work with these essential concepts to solve geometric problems.
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Discover BasicThis lesson introduces physical quantities such as mass, length, volume, and temperature, explaining their definitions, units, and measurement instruments. It emphasizes the importance of units and conversions for precise communication in science.
Open courseChemistry lesson for 6th graders explaining water's chemical composition, states, physical and chemical properties, and its uses in daily life and industry, with a clear and scientific approach.
Open courseThis 6th-grade geology lesson explains the presence, path, and role of water in landscapes as well as its importance as a natural resource to protect.
Open courseThis physics lesson for 6th grade explains the fundamental principles of electricity and simple circuits. It covers electrical current, essential circuit elements, differences between series and parallel circuits, and key safety rules when creating circuits.
Open courseIn this 6th grade Biology lesson, explore 'Biodiversity Around Us' with simple explanations, concrete examples, essential concepts, and a clear foundation to create related quizzes.
Open courseThe cell as the basic unit of life. Structure and roles of key parts (nucleus, membrane, cytoplasm).
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Discover Basic6th grade chemistry lesson explaining what matter is, its characteristics, states (solid, liquid, gas), pure substances, mixtures, and state changes. Illustrated with everyday examples.
Open courseThis Grade 6 Biology lesson introduces the reproduction of flowering plants with clear explanations, concrete examples, essential concepts, and a solid foundation for related quizzes.
Open courseThis Grade 6 lesson explains how soil forms, its composition, and essential roles. It shows why soil protection is vital for biodiversity and agriculture.
Open courseGeneral introduction to living organisms: common characteristics and diversity.
Open courseSolid, liquid, gas: characteristics. Changes of state: melting, solidification, vaporization, condensation.
Open courseIn this 6th grade Biology lesson, discover "Living Things in Their Environment" with simple explanations, concrete examples, key notions to remember, and a clear foundation to later create associated quizzes.
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Discover BasicThis lesson explains what energy is, its various forms and sources, its transformations in daily life, and the importance of responsible use. Adapted for 6th graders, it combines definitions, concrete examples, and awareness for solid understanding.
Open courseInfluence of rocks on landscapes. Erosion, weathering, material transport. Natural agents: water, wind, ice.
Open courseThis 6th grade Biology course covers "Feeding Relationships" with simple explanations, concrete examples, essential concepts to remember, and a clear base for creating related quizzes.
Open courseThis 6th grade geology lesson explains what natural resources are, their renewable and non-renewable types, the environmental impacts of their exploitation, and sustainable use practices. It highlights examples and stresses individual and collective responsibility to preserve these essential life resources.
Open courseThis 6th grade chemistry lesson explains homogeneous and heterogeneous mixtures with simple definitions, concrete examples, observation and separation methods, and their applications in daily life and industry.
Open courseThis 6th-grade math course explains the essential concepts of physical quantities: length, mass, and duration. You'll learn the SI units, how to convert measurements, and solve practical problems with adapted examples.
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Support the projectIn this 6th grade Biology lesson, discover "Useful and Dangerous Microorganisms" with simple explanations, concrete examples, essential concepts, and a clear basis to then create associated quizzes.
Open courseIntegers, decimals, simple fractions. Operations and order of operations. Rounding and approximations.
Open courseThis 6th-grade math course introduces the concept of proportionality through definitions, concrete examples, and methods to identify and use the proportionality coefficient in various everyday situations.
Open courseThis 6th-grade physics lesson explains what a simple mixture is, its types (homogeneous, heterogeneous), how to observe and separate them using physical methods like filtration, decantation, and evaporation. Adapted for middle school with concrete examples to aid understanding.
Open courseIn this 6th grade biology lesson, discover how to use a microscope to observe objects too small for the naked eye, such as cells. Learn about the main parts of the microscope, steps to prepare a slide, essential settings, and best practices for clear and precise images.
Open courseThis math course for 5th grade introduces literal calculations, presenting literal expressions, their writing, addition and multiplication operations, and their use in concrete examples. It establishes the foundation necessary for advancing in literal calculations.
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Support the projectThis 5th-grade Biology course explains the circulation of matter in ecosystems, detailing exchanges between living beings and their environment, roles of producers, consumers, and decomposers, biogeochemical cycles, and the importance of matter recycling for life. It includes definitions, concrete examples, and summaries for clear understanding.
Open courseThis 5th-grade physics lesson explains the straight-line propagation of light in transparent media, reflection according to the law of equal angles, refraction at the interface between two materials, and shadow formation. Illustrated with practical examples, it prepares students to understand everyday optical phenomena.
Open courseThis 5th grade physics lesson explains the production, propagation, and perception of sound. It covers the role of vibrations, sound wave transmission, ear function, and key sound signal characteristics.
Open courseChemistry lesson for 5th-grade students explaining the dissolution of a substance in a liquid, the concept of solubility, saturated and unsaturated solutions, and factors affecting solubility with everyday examples.
Open courseOhm’s Law. Series and parallel resistances. Measurements: current and voltage.
Open courseThis physics course for 5th grade explains what energy is, its various forms, how it transfers and converts, and the fundamental principle of energy conservation, with everyday examples.
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Discover BasicThis 7th grade math lesson introduces the foundations of fractions, including definitions, fundamental operations, methods for comparing, and simplifying fractions. Each concept is supported by practical examples and educational summaries to ensure a thorough and rigorous understanding suitable for middle school.
Open courseThis 5th-grade Biology lesson explains how human activities affect ecosystems. It includes clear definitions, concrete examples, and summaries to understand the consequences of our actions on nature. The course covers ecosystem concepts, positive and negative human impacts, and solutions for environmental protection.
Open courseBasic concepts of genes and heredity.
Open courseStudy of the diversity of living organisms and their role in nature.
Open courseThis 5th-grade geology course explains Earth's internal structure, tectonic movements, volcanic and seismic phenomena, and surface erosion that continuously transform our landscapes, providing a clear understanding of our dynamic planet.
Open courseRelationships between species and ecological balance.
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Support the projectThis geology course for 5th-grade students clearly explains the mechanisms behind earthquakes, the methods to measure them, and the associated risks. It also covers prevention strategies to live safely in earthquake-prone areas.
Open courseThis lesson explains the concept of density, how to calculate it, the units to use, and shows concrete examples to compare different materials. An essential tool for understanding density in middle school chemistry.
Open courseMass concentration. Dissolution and saturation.
Open courseThis 5th grade physics lesson introduces fundamental concepts of motion: trajectory, average speed, simple types of motion (uniform and varied rectilinear), and reading distance-time graphs. Illustrated with concrete examples, it prepares students to analyze everyday movements through a progressive and educational approach.
Open courseThis lesson covers relative numbers, their notation, representation on a number line, comparison, operations (addition, subtraction, multiplication, division), and practical examples suitable for grade 7. It helps understand and work with these numbers in various mathematical and everyday contexts.
Open courseThis Biology lesson for 5th-grade students explains animal and plant nutrition in detail. It covers basic concepts, specific nutrition modes for each group, biological processes involved, with simple and clear examples. The course is divided into several parts to facilitate progressive understanding.
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Discover BasicThis geology lesson for 5th grade students explains Earth's structure, types of tectonic plate movements, and their major geological consequences. Understanding these concepts is essential to grasp the processes shaping our planet.
Open courseThis 5th-grade chemistry lesson explains the role of water as a solvent. It covers the concepts of solvent, solution, and polarity with concrete examples, highlighting the limits of water's dissolving power.
Open courseThis 5th-grade physics lesson explains the nature of light, its straight-line propagation, the conditions for shadow formation, types of shadows (self-shadow and cast shadow), illustrated with practical examples and daily applications.
Open courseTables and coefficients. Scales. Percentage calculations.
Open courseThis Biology lesson for 7th grade explains sexual and asexual reproduction methods of living organisms. It clearly presents the mechanisms, characteristics, concrete examples, important definitions, and educational summaries to facilitate understanding. This content helps grasp the essential basics of the subject.
Open courseThis Biology course for 5th graders explains how respiration provides the oxygen cells need to produce energy. It covers gas exchange, oxygen needs based on activity, and how the respiratory system works, offering clear definitions, examples, and summaries.
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Discover BasicThis Grade 7 geology lesson explains the origins, uses, and consequences of exploiting geological resources. It also raises awareness about sustainable management to protect our planet.
Open courseThis 5th-grade math lesson explains how to organize statistical data using tables, calculate the mean of a data set, and interpret these results for better analysis.
Open courseThis lesson explains the main geometric transformations studied in 5th grade: axial symmetry, central symmetry, translation, and rotation. It presents their definitions, practical examples, properties, and the importance of these concepts for geometry and problem solving.
Open courseThis chemistry course for 5th grade explains how to identify and separate the components of a mixture, whether homogeneous or heterogeneous, using physical methods like settling, filtration, evaporation, and distillation, illustrated with practical examples.
Open courseMath lesson for 5th graders presenting triangle classification by sides and angles, fundamental angle properties, and the relationship between sides and angles for solving geometric problems. Illustrated with concrete examples, this lesson prepares students for a rigorous understanding of triangle geometry.
Open courseThis geology lesson for 5th-grade students explains the origin of volcanoes, how they function, different types of volcanic eruptions, and the risks they pose to people and the environment, illustrated with concrete examples and prevention measures.
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Support the projectThis math course for 5th graders introduces the concept of volume and its units, then details how to calculate volumes of right prisms and cylinders. It explains key formulas and offers concrete examples to master these essential space geometry calculations.
Open courseThis 8th grade math lesson introduces literal calculations and first-degree equations with one variable. It explains how to manipulate expressions with letters, simplify and expand them, then solve equations to find unknown values. Practical examples and exercises illustrate these fundamental concepts, essential for understanding and solving math problems.
Open courseThis 8th grade math lesson explains volumes of common solids, the concept of composite quantities, and the importance of units. It includes practical examples and tips for mastering exercises.
Open courseThis lesson explains the human circulatory system, blood composition, the role of the heart and blood vessels, and vital exchanges between blood and cells. Designed for 8th grade, it clearly shows how blood circulation transports essential substances for the body's proper function.
Open courseThis 8th grade biology lesson explains the human digestive system, mechanical and chemical digestion, enzyme roles, nutrient absorption, and accessory organ functions. It guides step-by-step the transformation of food into nutrients essential for the body, with easy-to-understand summaries.
Open courseThis 8th-grade physics lesson explains the principles of lenses, their ability to form images, and their importance in human vision and optical instruments like glasses and microscopes.
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Support the projectOrganization and role of the main organs in the body.
Open courseThis course explains forces and interactions in physics for 8th-grade students. It covers the nature of forces, their types (contact and distance), the concept of resultant force, and concrete examples to understand their influence on object motion.
Open courseThis 8th grade course explores rock formation and classification, the importance of fossils as witnesses of the past, and the dating methods used to reconstruct Earth's history. It highlights major geological eras and Earth's dynamics through time.
Open courseComplete Grade 8 lesson on mechanical energy, explaining its kinetic and potential forms, transfer mechanisms via forces' work, energy conservation, friction effects, and real-world examples.
Open courseChemistry lesson for 8th graders about combustion, covering necessary conditions, chemical reactions involved, types of combustion, applications, and environmental impacts. Clear and structured content for key concept understanding.
Open courseThis 8th-grade chemistry lesson explains the law of conservation of mass in chemical reactions. It covers the fundamental principle, provides concrete examples, a practical experiment, and discusses implications for writing and balancing chemical equations.
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Support the projectThis geology lesson for 8th-grade students explains the fundamentals of plate tectonics, the types of plate movements, and their effects on mountain formation, earthquakes, and volcanoes. It also highlights the importance of this knowledge in natural disaster prevention and resource management.
Open courseStudy of major systems: digestive, respiratory, circulatory, nervous.
Open courseThis lesson explains the functions of the central and peripheral nervous systems, how nerve impulses are transmitted, and the role of neurons, receptors, and effectors in the body's internal communication, focusing on the myotatic reflex.
Open courseThis lesson for 8th grade students explains the fundamental concepts of acids, bases, and pH. It covers definitions according to the Bronsted-Lowry theory, pH measurement, neutralization reactions, and the use of color indicators to determine acidity or basicity of a solution.
Open courseThis 8th grade math lesson introduces relative numbers: definition, representation on a number line, and fundamental operations. It teaches a rigorous method for adding, subtracting, multiplying, and dividing relative numbers through concrete examples and applied problems, including practical tips for handling signs and understanding results.
Open courseThis 8th grade math lesson introduces key plane geometric transformations including translation, rotation, axial and central symmetry, and homothety. It explains their properties such as preserving distances and angles, and changing size, with examples and applications for solving geometry problems.
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Support the projectThis chemistry lesson for 8th-grade students explains chemical transformations, their characteristics, indicators to recognize them, mass conservation, and representation through chemical equations. It also highlights the difference from physical transformations with simple, concrete examples.
Open courseThis 8th grade biology course introduces micro-organisms, the infection process, immune system functions, and ways to prevent and treat infections. It lays a foundation for understanding the fight against infectious diseases.
Open courseThis 8th grade chemistry lesson explains what a molecule is, how to accurately represent it using different types of chemical formulas (molecular, structural, semi-structural), and how to use chemical symbols and subscripts to write these formulas. It includes practical examples and a method to master reading and writing molecular formulas, essential for chemistry studies.
Open courseThis 8th-grade physics lesson explores the concept of motion and the quantity speed. Students will learn to define and calculate average speed, understand frames of reference, uniform and non-uniform motion, and interpret distance-time graphs to analyze movement.
Open courseImages with converging/diverging lenses. Instruments: glasses, microscopes.
Open courseThis 8th grade math course deepens the concept of proportionality, including complex scenarios involving multiple related quantities, and a detailed study of percentages. It combines theory, practical examples, and methodological advice for mastering essential concepts to solve problems effectively.
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Discover BasicThis 8th grade math lesson explains powers, powers of 10, scientific notation, calculation rules, and how to compare numbers expressed in scientific notation using clear examples relevant to science and math.
Open courseThis 8th-grade biology course clearly explains human reproduction, body changes during puberty, and various contraception methods, emphasizing their role in preventing unintended pregnancies and infections. It highlights the importance of appropriate sexual education for informed choices.
Open courseThis 8th-grade biology lesson explains human respiration and gas exchanges. It details the respiratory organs, pulmonary ventilation, gas diffusion in alveoli, blood transport of oxygen and carbon dioxide, and the vital role these processes play in the human body.
Open courseThis geology course for 8th-grade students explains different natural hazards, their causes, effects on humans and the environment, and prevention and management strategies to reduce their impacts.
Open courseCommon diseases, hygiene, and prevention.
Open courseThis geology lesson for 8th graders explains how earthquakes form, details seismic waves and their propagation, and shows how these waves are used to study our planet and locate earthquakes.
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Discover BasicThis physics course for grade 8 explains the nature, characteristics, and propagation of light and sound signals, with practical applications to help students understand these essential means of remote communication and information transfer.
Open courseThis 8th grade math course introduces key concepts in descriptive statistics and probability. It explains how to collect, organize, and represent data, calculate mean, median, range, and introduces probability calculations. Illustrated with practical examples, it aims to develop a rigorous scientific approach and demonstrates the practical use of these concepts.
Open courseProtons, neutrons, electrons. Atomic number and atomic mass.
Open courseThis lesson explains the Pythagorean theorem, its definition, mathematical statement, conditions for use, and practical examples. It is aimed at 8th grade students to master calculating lengths in right triangles and understand its practical usefulness in school and daily life.
Open courseThis geology lesson for Grade 8 explains the link between volcanism and tectonic plate movements. It describes the types of plate boundaries, their role in volcano formation, and gives examples such as the Pacific Ring of Fire, mid-ocean ridges, and hotspots.
Open courseConnection between DNA, genes, and proteins. Expression of traits.
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Support the projectThis math course for 9th grade introduces essential concepts of algorithmics and programming, explaining definitions, variables, control structures, methodological approaches, and concrete examples to help students understand and write simple algorithms, develop logical reasoning, and build a foundation for computer programming.
Open courseThis math course for 3rd-grade middle school students covers the fundamentals of statistics. It details how to collect, organize, graphically represent, and analyze data to understand phenomena or answer questions. Concepts like mean, median, range, and main types of charts are explained with suitable examples.
Open courseThis 9th-grade geology course explains Earth's climate changes throughout history, their natural causes, current human influence, and scientific methods to study and predict climate.
Open courseThis biology lesson for 9th-grade students explains the organization of chromosomes, the role of genes, and the transmission of hereditary traits. It also differentiates hereditary and acquired traits, providing a solid foundation to understand genetics and the diversity of living beings.
Open courseThis 3rd grade geology course details Earth's formation and evolution through geological time. It presents major time divisions, scientific dating methods, and key stages and upheavals that marked our planet's history.
Open courseThis 3rd-grade chemistry lesson explains redox reactions, their mechanisms, how to identify oxidizing and reducing agents, illustrated with concrete examples and practical applications.
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Discover BasicLesson for 9th grade students on kinetic and potential energy: definitions, formulas, real-life examples, transformation, and conservation of mechanical energy. Clear and accessible approach for middle school.
Open courseActivation energy and the role of catalysts.
Open courseThis course for 9th grade students introduces the fundamental concepts of equations and inequalities. It explains solution methods, rules to follow, and provides practical examples to master these essential mathematical tools.
Open courseEvolution of species, adaptation, and natural selection.
Open courseAffine and linear functions. Graphical representation and interpretation.
Open courseThis physics course for 9th grade students explains various forces, focusing on universal gravitation. It covers how to characterize a force, Newton's law of gravitation, the concept of weight, vector representation of forces, and applying these concepts to solve simple physics problems. Suitable for middle school, it enhances understanding of natural phenomena and the scientific approach.
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Discover BasicThis course explains what fossils are, how they form, and how scientists use them to reconstruct past environments, illustrated with concrete examples suitable for 9th grade students.
Open course9th-grade geology course on natural resources, various energy sources, and sustainable development principles, with practical examples and tips for responsible consumption.
Open courseThis lesson explains how the body defends itself against infectious agents, detailing innate and adaptive immune responses, and highlighting the crucial role of vaccination in disease prevention.
Open courseThis 9th grade biology course explains how human actions affect health and the environment, covering pollution, health risks, and encouraging individual and collective responsibility within sustainable development.
Open courseThis 9th-grade chemistry lesson explains the formation of ions, the nature and properties of ionic solutions, their electrical conductivity, how to calculate ion concentration, and chemical reactions between ions in solution, with concrete examples.
Open courseThis course aims to understand the fundamental concepts related to direct electric current, the characteristics of simple electric circuits, and the laws governing the behavior of electrical components.
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Discover BasicThis 9th-grade chemistry lesson explains combustion reaction: its conditions, products formed, types of fuels, and environmental impacts along with safety measures related to this essential chemical reaction.
Open courseThis lesson offers a detailed method to approach and succeed in complete math problems for the brevet at 9th-grade level. It guides students through statement analysis, organizing problem-solving, applying key program concepts, and writing a justified response, illustrated by concrete examples.
Open courseThis biology lesson for 9th-grade students explains the role of the microbiota in the body, its essential functions, the effects of imbalance, and best practices to maintain a healthy microbiota crucial for health.
Open courseThis 9th-grade Physics lesson explains how to describe movement, calculate the average speed of an object, and understand the importance of speed in road safety. Through concrete examples, it illustrates the impact of speed on stopping distances and accident risks, emphasizing the need to adapt driving to protect all road users.
Open courseThis 9th-grade geology lesson explains Earth's internal structure, mantle convection mechanisms, and how these movements generate natural phenomena like volcanoes and earthquakes, highlighting their significance for the planet.
Open courseThis 9th-grade biology lesson explains what a mutation is, its causes, effects on organisms, and its key role in creating genetic diversity essential for species evolution and adaptation.
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Support the projectThis 9th-grade Physics course explores mechanical waves, focusing on sound as a longitudinal wave and the signals used to transmit information. Through definitions, concrete examples, and summaries, it provides students the basics to understand how energy and information propagate in nature and modern technologies.
Open courseThis chemistry lesson for 9th grade students explains the microscopic organization of matter. It presents atoms as basic units, the formation of molecules through chemical bonds, and the nature and role of ions. Key concepts are illustrated with concrete examples and summaries to facilitate understanding of chemistry fundamentals at middle school level.
Open courseThis 9th grade mathematics course introduces essential probability concepts: definition of sample space and events, calculation of probabilities, management of complementary and compound events, notion of equiprobability, and frequentist interpretation. Illustrated with concrete examples, it prepares students to master fundamental concepts and apply probabilities in various contexts.
Open courseThis 9th grade physics lesson explains the concept of electric power and how to calculate it from voltage and current. It explores the relationship between power, time, and consumed energy, emphasizing the units used (watt, joule, watt-hour, kilowatt-hour). Concrete examples and daily applications help understand household device consumption and its impact on the electricity bill. The content is clear, progressive, and adapted for middle school students with essential notions for managing electric consumption.
Open courseThis 9th grade math lesson introduces the fundamental concepts of powers, square roots, and scientific notation. It explains essential properties, provides concrete examples, and demonstrates how to manipulate these concepts to simplify and efficiently calculate expressions. The lesson also prepares students to use scientific notation to represent very large or very small numbers, a vital skill in science and technology.
Open courseThis 9th-grade level course explains acid-base reactions according to Brønsted-Lowry, the proton transfer mechanism, the use of pH indicators, and presents concrete examples from everyday life and the laboratory to better understand these fundamental chemical transformations.
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Support the projectThis 3rd-grade biology course explains how sexual reproduction enables genetic information transmission through gamete formation, fertilization, and the role of DNA, promoting the genetic diversity needed for species evolution.
Open courseThis 9th-grade physics lesson explains electric voltage, current intensity, and Ohm's law. It details how to measure these quantities using a voltmeter and ammeter, then how to apply Ohm’s law to solve simple electrical problems while following safety rules.
Open courseThis comprehensive lesson presents Thales' theorem for 9th grade, including its statement, application conditions, examples, the converse, and methodological tips. It aims to develop a solid understanding and practical mastery for solving plane geometry exercises at the middle school level.
Open course9th grade math course on trigonometry in right triangles. Learn to identify sides, understand and apply sine, cosine, and tangent ratios to calculate angles and lengths, with examples and exercises to improve.
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