🔬

Collège Ages 11-13

Go deeper: algebra, physics, coding, nature and longer reads.

➗ Maths

📐MathsAges 11-13Angles in a TriangleDiscover why the angles in a triangle always add up to 180°, how to find a missing angle, the exterior angle rule, and i 📐MathsAges 11-13Area and PerimeterLearn area and perimeter the clear way: the difference between them, formulas for rectangles, squares and triangles, uni ⭕MathsAges 11-13Circles: Circumference and AreaLearn the parts of a circle and master circumference and area using pi: clear formulas, full worked examples, the radius 🔄MathsAges 11-13Converting Fractions, Decimals and PercentagesConvert between fractions, decimals and percentages with confidence: clear rules for every direction, a handy conversion 🧭MathsAges 11-13Coordinates in Four QuadrantsPlot and read coordinates in all four quadrants using positive and negative x and y values. Learn the quadrant signs, th 🔢MathsAges 11-13Decimals ExplainedUnderstand decimals clearly: place value of tenths and hundredths, reading and comparing decimals, and adding, subtracti ➗MathsAges 11-13Dividing FractionsMaster dividing fractions with the keep-change-flip method: multiply by the reciprocal, simplify, and divide whole and m 📦MathsAges 11-13Expanding BracketsLearn to expand brackets in algebra using the distributive law. Step-by-step worked examples with negative signs, two br 🔢MathsAges 11-13Exponents and PowersMaster exponents and powers: what a base and exponent mean, squares and cubes, the laws of exponents, the power of zero,⚖️MathsAges 11-13InequalitiesUnderstand inequalities: read the four symbols, solve one- and two-step inequalities, plot solutions on a number line, a 🍰MathsAges 11-13Introduction to FractionsUnderstand fractions clearly: numerators and denominators, equivalent fractions, comparing and simplifying, plus worked ➖MathsAges 11-13Introduction to Integers (Negative Numbers)Meet the integers: positive and negative whole numbers. Learn the number line, absolute value, and the rules for adding,📈MathsAges 11-13Line GraphsA middle-school math lesson on line graphs: plot points, read values, interpret trends and gradients, handle two lines, 📊MathsAges 11-13Mean, Median, Mode and RangeMaster the four key statistics: learn to calculate mean, median, mode and range step by step, when to use each one, and ✖️MathsAges 11-13Multiplying FractionsMaster multiplying fractions: multiply tops, multiply bottoms, simplify, and handle whole and mixed numbers. Worked exam 🔢MathsAges 11-13Number Sequences and the nth TermLearn to find the nth term rule of a linear sequence. Step-by-step worked examples: find the common difference, build th 🧮MathsAges 11-13Order of Operations (BODMAS/PEMDAS)Master the order of operations with BODMAS and PEMDAS: brackets, indices, division, multiplication, addition and subtrac %MathsAges 11-13Finding a Percentage of an AmountLearn to find a percentage of an amount three ways: using 10% and 1% building blocks, fractions, and decimal multipliers 🏷️MathsAges 11-13Percentages in Real Life (Discounts and Tax)Use percentages in everyday situations: work out discounts, sales prices, sales tax and VAT, tips, and percentage increa 💯MathsAges 11-13Percentages Made EasyMaster percentages step by step: what percent means, finding a percent of a number, percentage increase and decrease, an 🥧MathsAges 11-13Pie ChartsA middle-school math lesson on pie charts: read sectors, work out angles and percentages, draw your own pie chart, find ⚖️MathsAges 11-13Ratio and Proportion ProblemsMaster ratio and proportion word problems: sharing amounts, scaling recipes, map scales, unit rates, and the unitary met ⚖️MathsAges 11-13Ratios and ProportionsUnderstand ratios and proportions: how to write and simplify a ratio, find equivalent ratios, scale recipes, and solve p 🔄MathsAges 11-13Rotation and TranslationLearn two key transformations: rotation (turning a shape about a centre by an angle) and translation (sliding a shape). 🧹MathsAges 11-13Simplifying ExpressionsLearn to simplify algebraic expressions by collecting like terms. Step-by-step worked examples covering signs, multiple ⚖️MathsAges 11-13Solving Equations with BracketsLearn to solve linear equations that contain brackets. Step-by-step worked examples: expand, collect like terms, balance 🧮MathsAges 11-13Solving Two-Step EquationsLearn to solve two-step equations the reliable way: undo operations in reverse order, keep both sides balanced, handle n 🟦MathsAges 11-13Square Numbers and Square RootsUnderstand square numbers and square roots: how squaring works, perfect squares, finding and estimating roots, and where 🔁MathsAges 11-13Substituting into FormulasLearn to substitute numbers into algebraic formulas. Step-by-step worked examples with brackets, powers, negative number 📦MathsAges 11-13Surface Area and VolumeLearn surface area and volume of cubes, cuboids, prisms and cylinders with clear formulas and full worked examples, plus 📈MathsAges 11-13The Coordinate PlaneLearn the coordinate plane: the x-axis and y-axis, the origin, ordered pairs (x, y), the four quadrants, and how to plot ⭕MathsAges 11-13Venn Diagrams and SetsLearn Venn diagrams and sets: what a set is, union and intersection, the universal set and complement, reading overlappi ✍️MathsAges 11-13Writing Algebraic ExpressionsLearn to turn words into algebra: choose a variable, translate phrases like 'three more than' or 'twice a number', and w

⚛️ Physique

🌿 Nature

🧪NatureAges 11-13Acids and BasesAcids and bases explained for middle-school students: the pH scale, how acids and bases react, neutralisation, indicator ⚛️NatureAges 11-13Atoms and MoleculesAtoms and molecules explained for middle-school students: protons, neutrons and electrons, elements and the periodic tab 🔬NatureAges 11-13Cells: The Building Blocks of LifeCells explained for students: the smallest unit of life, plant vs animal cells, the parts of a cell and their jobs, how 🌋NatureAges 11-13Earthquakes and TsunamisEarthquakes and tsunamis explained for middle school: how tectonic plates cause earthquakes, how seismic waves are measu 🦅NatureAges 11-13Food Chains and EcosystemsUnderstand food chains, food webs and ecosystems: producers, consumers, predators and decomposers. Real examples, energy 🌌NatureAges 11-13Galaxies and the Milky WayGalaxies and the Milky Way explained for ages 11-14: what a galaxy is, the shape and size of our Milky Way, spiral, elli 🦇NatureAges 11-13How Caves FormHow caves form, explained for middle school: solution caves dissolved by acidic water, stalactites and stalagmites, sea 🌀NatureAges 11-13Hurricanes and TornadoesCompare hurricanes and tornadoes: how each forms, why they spin, how scientists measure them, real-world examples, safet 🌊NatureAges 11-13Natural Disasters: Floods, Droughts and StormsNatural disasters explained for students: what causes floods, droughts and storms, why they happen, how scientists predi 🌿NatureAges 11-13Photosynthesis ExplainedPhotosynthesis explained for middle school: how plants use sunlight, water and carbon dioxide to make glucose and oxygen ⚡NatureAges 11-13Renewable and Non-Renewable EnergyRenewable and non-renewable energy explained for students: fossil fuels, solar, wind, water and nuclear power, why energ 🔭NatureAges 11-13Telescopes and Studying SpaceHow telescopes work and how scientists study space, for ages 11-14: refractors and reflectors, light-gathering and magni 🧠NatureAges 11-13The Brain and Nervous SystemA middle-school lesson on the nervous system: neurons, the brain's main regions, the spinal cord, reflexes, and how elec ♻️NatureAges 11-13The Carbon CycleThe carbon cycle explained for students: how carbon moves between the air, living things, oceans and rocks, the role of 🫀NatureAges 11-13The Circulatory System: Heart and BloodHow the heart and blood work, for middle school: the four heart chambers, arteries, veins and capillaries, what blood ca 🍽️NatureAges 11-13The Digestive SystemHow the digestive system works, explained for middle school: mouth, stomach, small and large intestine, enzymes and nutr 🌍NatureAges 11-13The Greenhouse EffectUnderstand the greenhouse effect: how greenhouse gases trap heat and keep Earth warm, why human activity is strengthenin 🦴NatureAges 11-13The Human SkeletonThe human skeleton explained for students: the 206 bones, what they are made of, the jobs of the skeleton, joints and mu 🫁NatureAges 11-13The Respiratory System: How We BreatheHow breathing works, for middle school: the path of air through nose, trachea and lungs, the alveoli, gas exchange, the 🪨NatureAges 11-13The Rock CycleThe rock cycle explained for middle school: how igneous, sedimentary and metamorphic rocks form and change over millions 🫀NatureAges 11-13The Systems of the Human BodyExplore the human body systems: circulatory, respiratory, digestive, nervous, skeletal and muscular systems explained fo

📖 Histoires

📚 Livres

⚽ Sport

💪SportAges 11-13Bodyweight Strength ExercisesLearn safe bodyweight strength exercises for young athletes: how muscles get stronger, correct form for squats, push-ups 🏃‍♂️SportAges 11-13Building Stamina and EnduranceLearn how to build stamina and endurance: what aerobic fitness is, how the body adapts to cardio training, and a safe, b ❤️SportAges 11-13Exercise and a Healthy HeartDiscover how exercise builds a healthy heart: how the heart works, what aerobic activity does to it, why a strong heart 🤸SportAges 11-13Flexibility and StretchingLearn about flexibility and stretching: what flexibility is, the difference between dynamic and static stretches, when t 🫀SportAges 11-13How the Heart and Lungs Work During ExerciseLearn how your heart and lungs work during exercise: how oxygen reaches your muscles, why your heart beats faster, and h 🎯SportAges 11-13How to Set Fitness GoalsLearn how to set fitness goals that actually work: use the SMART method, balance outcome and process goals, track progre 💪SportAges 11-13How Your Muscles WorkDiscover how your muscles work: how they contract to pull bones, why muscles work in pairs, what makes them stronger, an 💧SportAges 11-13Hydration and ExerciseUnderstand hydration and exercise: why water matters, how sweating cools you, the signs of dehydration, when to use spor 🌈SportAges 11-13Moving to Feel Good and Reduce StressLearn how exercise boosts mood and reduces stress: the brain chemistry behind 'feeling good', how movement calms worry, 🤝SportAges 11-13Teamwork and SportsmanshipLearn about teamwork and sportsmanship in sport: how to play your role on a team, communicate, win and lose gracefully, 😴SportAges 11-13Why Sleep Matters for AthletesDiscover why sleep matters for athletes: how sleep repairs muscles, builds skills, releases growth hormone, sharpens rea

🤖 IA

♿IAAges 11-13AI and Accessibility: Helping EveryoneHow AI improves accessibility: screen readers, live captions, image descriptions, speech tools and navigation help for p 🚀IAAges 11-13AI and the Jobs of the FutureA friendly, balanced look for middle-schoolers at AI and future jobs: which work changes, which new jobs appear, and the 🎨IAAges 11-13AI in Art and MusicHow AI makes art and music: learning patterns from examples, generating new pieces, and honest questions about copying, 🌍IAAges 11-13AI in Everyday LifeA grounded middle-school guide to AI in everyday life: where it really helps, how it works, its real limits and risks, a 🌦️IAAges 11-13AI in Weather ForecastingHow AI helps forecast the weather: a middle-school guide to physics models, machine-learning forecasts like nowcasting, 🔀IAAges 11-13Classification vs PredictionUnderstand the two main jobs of supervised AI: classification sorts things into categories, regression predicts a number 👁️IAAges 11-13Computer Vision and Face RecognitionHow computer vision and face recognition work: from pixels to features to matching faces, plus real limits, errors, bias 🌳IAAges 11-13Decision Trees ExplainedA clear guide to decision trees in machine learning: how a model learns yes/no questions to sort data, why they are easy 🩺IAAges 11-13How AI Helps DoctorsA middle-school lesson on how AI supports doctors: reading medical scans, sorting records, predicting risk and speeding 🎙️IAAges 11-13How AI Recognizes SpeechHow AI recognizes speech, step by step: from sound waves to digital numbers, to phonemes and words, plus why it mishears 🎯IAAges 11-13How Recommendation Systems WorkA middle-school guide to recommendation systems: how YouTube, Netflix and Spotify suggest content using collaborative fi 🔎IAAges 11-13How Search Engines WorkA clear middle-school lesson on how search engines work: crawling, indexing, ranking with signals, and how AI shapes res 📧IAAges 11-13How Spam Filters WorkHow email spam filters work: a middle-school guide to the rules, machine learning and probability that sort junk mail fr 🌍IAAges 11-13How Translation Apps WorkHow translation apps work: from old word-by-word systems to neural machine translation that learns from millions of exam 🤝IAAges 11-13Making AI Fair for EveryoneA clear middle-school lesson on making AI fair: why AI can be unfair, how biased data causes it, real examples, and what 🧠IAAges 11-13Neural Networks ExplainedA middle-school guide to neural networks: neurons, weights, layers, activation, and how training with backpropagation le 🏷️IAAges 11-13Supervised vs Unsupervised LearningA clear guide to supervised vs unsupervised learning: how labelled examples train a model to predict, how unlabelled dat 🎯IAAges 11-13Training, Testing and AccuracyLearn how AI is built: how a model trains on examples, why it must be tested on data it never saw, and what accuracy rea ⚙️IAAges 11-13What Is Machine Learning?A middle-school guide to machine learning: training data, features, models, neural networks, supervised vs unsupervised

💻 Code

📡CodeAges 11-13Broadcasting Messages in ScratchA step-by-step middle-school lesson on broadcasts in Scratch: how 'broadcast' and 'when I receive' let sprites talk to e 🧮CodeAges 11-13Building a Calculator in PythonBuild a working calculator in Python step by step: read numbers with input, do the four operations, handle the divide-by 👯CodeAges 11-13Cloning Sprites in ScratchA step-by-step middle-school lesson on clones in Scratch: how 'create clone', 'when I start as a clone', and 'delete thi 🧩CodeAges 11-13Creating Custom Blocks in ScratchA middle-school Scratch coding lesson on custom blocks: learn to make your own blocks with My Blocks, add inputs, avoid 🎨CodeAges 11-13CSS Colours and FontsA friendly middle-school lesson on CSS colours and fonts: set text and background colours with names, hex and rgb, choos 🧩CodeAges 11-13Functions: Reusable Blocks of CodeA middle-school coding lesson on functions: learn how to define and call functions, pass arguments, return values, and w ↩️CodeAges 11-13Functions That Return ValuesUnderstand how Python functions return values: the difference between return and print, capturing results in variables, 🔢CodeAges 11-13How Computers Store Data (Binary)Discover how computers store everything as binary: bits and bytes, why machines use only 0s and 1s, how numbers, letters 🧠CodeAges 11-13How the CPU WorksMeet the CPU, the brain of the computer: learn the fetch-decode-execute cycle, what registers and the clock do, how bill 🌐CodeAges 11-13How the Internet WorksHow the internet works explained simply: IP addresses, packets, servers and clients, DNS, and what happens when you open 📝CodeAges 11-13HTML Forms and InputsA clear, hands-on lesson on HTML forms and inputs for middle-school coders: build a form with text boxes, email fields, 🏷️CodeAges 11-13Introduction to HTML TagsA beginner-friendly introduction to HTML tags: headings, paragraphs, links, images, lists and the page skeleton. Learn h 📋CodeAges 11-13Lists and ArraysLearn what lists and arrays are: how computers store many values in one place, how to add, read, and change items by the 🔁CodeAges 11-13Loops: Making the Computer RepeatA middle-school coding lesson on loops: learn what loops are, how for and while loops work, why they save time, and see 🎮CodeAges 11-13Making a Platformer in ScratchA step-by-step middle-school lesson on building a platformer in Scratch: left and right movement, gravity, jumping with 🔳CodeAges 11-13Nested Loops and PatternsA middle-school coding lesson on nested loops: learn how a loop inside a loop works, why the inner loop runs fully for e ⚖️CodeAges 11-13Python Comparison and LogicLearn Python comparison and logic: ==, !=, <, >, the True and False booleans, and the and, or, not operators. Build cond 🔁CodeAges 11-13Python For LoopsLearn Python for loops: loop over lists and strings, use range() to count, build running totals with an accumulator, and 🔀CodeAges 11-13Python: if, elif, elseMaster Python decisions with if, elif and else: comparison operators, branching, why elif beats stacked ifs, chained con ⌨️CodeAges 11-13Python Input and OutputLearn Python input and output: print() with sep and end, reading text with input(), converting strings to numbers with i 📋CodeAges 11-13Python Lists in DepthGo deeper with Python lists: indexing, slicing, append, insert, remove, sort and reverse, len, and looping with for. Mas 🔁CodeAges 11-13Python Loops and ListsCombine Python loops and lists: use a for loop to visit every item, build lists, count and total values, and use range()🔢CodeAges 11-13Python Numbers and MathLearn Python numbers and math: integers, floats, the arithmetic operators, floor division, modulo, exponents, operator o 🔁CodeAges 11-13Python While LoopsMaster Python while loops: how a condition controls repetition, updating the loop variable, avoiding infinite loops, bre 🎲CodeAges 11-13Random Numbers and Games in PythonMake Python games unpredictable with the random module: use randint, choice, shuffle and random to roll dice, pick cards ✍️CodeAges 11-13Working with Text and StringsLearn how to work with text and strings in Python: create strings, join them, slice them, change case, find and replace,🧹CodeAges 11-13Writing Clean Code and CommentsLearn to write clean Python code: clear variable names, helpful comments and docstrings, avoiding repetition with functi