Turn numbers into decisions: explore integers, estimates, ratios, percentages, tables and charts. Finish by comparing plans in a square of possibilities.
Try the first lesson without an account. Sign in to save your achievements.
MATHEMATICS I
What you will discover
Interpret changes, check units and use estimates without confusing them with exact results.
Scale ratios, identify a percentage base and compare rules in tables and charts.
Justify a choice within a limit, test another condition and export a reproducible report.
Is this track for you?
For learners who already add, subtract, multiply and divide small numbers. If needed, start with Mathematics: a garden of numbers. No installation, real money or equipment; reading support is welcome.
The time is an estimate, not a deadline. Take breaks, use hints and try again whenever you need.
How can I tell what I learned?
Use the objectives and challenge below for reflection or a conversation with someone who can help. This is guided self-assessment: it sends no answers, awards no XP and does not automatically verify independence.
In Foundations, change an example, predict results, check a normal case and an error case, and explain your choices. If you need help, identify what to practice again.
Your transfer challenge
Record your prediction, calculation and what changed in your thinking. Compare at least two scenarios. Write one limitation and a next question; your written justification is not automatically graded.
Keep evidence: prediction, attempt, result, an original change and what you still cannot explain. Seek feedback when possible; if studying alone, return later without copying and compare attempts.
Try again another time
After a break, explain the idea without opening the solution and try a different example. Compare with your first attempt: what can you do independently, and where do you need a hint? You may write, speak or draw; choose a way to check the same idea. Record help received, including AI, and revisit the part you need. There is no universal deadline or extra XP for this record.
Completions and XP record Rullst Academy assessments. An introductory track can help everyday life and prepare further study; alone it does not prove complete mastery or professional readiness. Level indicates depth, not age.
At your own pace
Your path, step by step
One idea at a time: understand, experiment and check your prediction.
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Learn, experiment and create at your own pace.Your snippet in progressanswers preparedBuild your answers and check when you are ready.Discovery workshopMove cards with the arrows and check your sequence.lessonsFor curious people, even without prior interest in programming. Observe, compare and explain decisions using fictional situations.Investigative mindInvestigate claims, plan fair tests and check sources. Finish by assembling your own investigation.Download investigation workbookAn editable Markdown guide for applying questions, tests, records and revision outside Rullst Academy. Use safe situations and fictional data.Separate observation, preference and hypothesis.Plan tests and check the limits of evidence.Build a workbook for your own investigation.Idea detective22 lessons availableChoose a track and move at your own pace. 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Install Rust to run locally; the initial setup downloads dependencies.Understand the roles of Rust, Rullst and the browser.Connect routes, HTML structure and clear links.Check two pages, inserted text and a 404 error.Rullst: a page comes aliveFor anyone starting with clicks and their own quiz. No programming experience needed. To meet the tools first, try the introductory Rullst track.Turn a question into an interactive quiz.Experiment with answers, decisions and scoring.Take home a Rullst project with your quiz choices.For anyone who has never programmed or wants a gentle fresh start. No installation needed for the lessons. A trusted person can help with reading.First sparks in RustLight up a terminal, discover what quotes change and turn errors into clues. Your final mission: an explorer card built in Rust.Download my first Rust projectA terminal explorer card with instructions in your language. No external dependencies; requires Rust installed to run on your computer.Distinguish code, text and terminal output.Read names and calculations, using errors as clues.Prepare a Cargo project and check two cases.Rust: first sparksFor anyone wanting to practice code in small steps. This track introduces syntax; if everything still feels new, start with Rust: first sparks.Rust program builderValues, decisions, loops, functions, borrowing and Option. Build a scoring station and take home a runnable Rust project.Download Rust projectA Rust terminal program, without a framework. Includes comments in your language, a README and tests. The first track’s quiz project uses Rullst 12.Read values, conditions, loops and functions.Experiment with borrowing and absence using Option.Build and test a scoring station.Rust: from idea to programStart this trackTry the first lesson without an account. Sign in to save your achievements.Is this track for you?Your path, step by stepWhat you will discoverThe time is an estimate, not a deadline. Take breaks, use hints and try again whenever you need.There is still something to investigate. Use the hint and try again.Lesson completed and progress saved to your account.You changed the answer. Check again to validate this version.My files and GitHubChecking your access to this lesson…The editor and downloads open when this lesson is available to your account. Check access below or return to the track map.Every lesson can become your own record: code, notes or a practice plan. Saving a file to GitHub is optional and does not change your XP.Ready to check your answer.Read the feedback before trying again.Your tracksOne world, five territoriesDiscovery, Foundations, Building, Specialization and Frontiers represent depth. You advance through learning, with the support you need.Track completedChoose your route and learning space. Explore free tracks with reading support, three visual styles and saved progress.In the Aurora Expedition, we face the dragons of problems and ignorance with questions, knowledge and creativity. Mistakes give us clues for the next attempt.Dragons are the challenges.Explore this trackFind a starting point and choose the setting for your journey.What will you discover next?With JavaScript disabled, all suggestions appear below. Track links remain available.My routeI prefer to explore allExplore • imagine • discoverAsk • experiment • testBuild • understand • go deeper{done} of {total} lessonsProgress has not loaded yet. You can still explore the tracks.Reading supportIn lessons, Listen uses voices available on your device. You can also share reading with someone.Suggestions to exploreRemember choices in this browserNo completed lessons at this stop.Your spaceChoices apply on this page only.Reference stageThis choice recommends content. 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You can try the first lesson of each track without an account.18+ · Develop skillsAges 15–17 · Build my futureAges 5–7 · Discover through playAges 12–14 · Try different pathsAges 8–11 · Create and investigateIn upcoming advanced work, we will practice clear requirements, reviewing suggested code, failure tests and explained decisions. Learning to use AI includes knowing how to check the result.Learn with AI, check with evidenceAll possibilitiesShow suggestionsStudy available foundationsAll learning programsDiscover what people create at workA career path combines foundations, work tasks, projects and assessment. Today you can study the published foundations and explore the full plan.Careers in the age of AICareer pathsExplore careersConnect skills to professional tasks, original projects and practical assessment. Roadmaps show available stages and what is still needed.How would you like to explore?Choose a skill, explore a career or discover upcoming specializations. See what you can already study at Rullst Academy.Explore learning programsA discovery can become a projectA first experience for youIn preparationSign in to see the progress you have already earned.Develop skills through your own projectsBuild projects for your futureShall we discover what we can create?Try a field and find your pathYour ideas can come to lifeExplore development, security, AI, data and cloud. Each path shows what you can study now and what we are preparing.From your first ideas to professional projectsYour knowledge may go beyond the suggestion. Adventure, Laboratory and Studio styles remain independent.Start from scratch, build on what you have studied or deepen your knowledge. The roadmap shows available foundations and upcoming professional preparation.Connect foundations, original projects and professional skills. Develop autonomy gradually, with support in activities that need guidance.With an adult, choose a discovery. Observe, play and explain by pointing or drawing. The first activities need shared reading.Discover different fields through projects and see the full roadmap. Experiment before choosing where to go deeper.Try creating, investigating and caring for the digital world. Discover professions through small projects, with support when you need it.Your progress has not loaded yet.Editorial review: 2026-09-26. Source: a 2025 global employer survey; not a country- or language-specific job listing analysis or a hiring promise.Read the WEF reportSoftware, AI and data, networks and cybersecurity feature in the WEF skills and jobs growth outlook for 2030. Our first career path builds on the Rust and Rullst foundations already published.Why learn these skills?Other planned specializations: AI application security and Rust performance. Each path will have its own prerequisites, projects and assessment criteria.Learning programsFoundations available · career path in developmentView the roadmapPlanned · lessons not yet availablePost-quantum cryptographyA future security specialization: study quantum-resistant cryptography, inventory and migration. These algorithms can run on ordinary computers; this differs from programming quantum circuits.Explore the professional goal too{done} of {total} lessons completedThis shows progress in available tracks. Completing these foundations does not complete milestones in preparation or award professional certification.The project we want to help you buildGoal of the complete career path, still in preparation. You can start with the published foundations and build at your own pace.Quantum computingStart with the available mathematics and probability foundations. The quantum path is still being planned.Explore mathematics foundationsAn initial discovery of bits, qubits and measurement, followed by mathematical foundations and small simulated circuits. Advanced study will cover algorithms, noise and limitations.Your learning roadmapThe tracks below are available to study. Each milestone also shows the deeper work still needed to complete the career path.Your progress in published foundationsSkill pathsExplore skillsLearn a skill such as Rust, SQL, Git or critical thinking. Use these foundations across different careers.SpecializationsSee upcoming specializationsGo deeper into a subject after building the required foundations. The new paths below are being planned.Choose a reference for suggestions. It does not declare your age or change account permissions.Start with this discoveryAdjust my journey and styleWhat would you like to learn to build?Different ways to learnChoose an option and use colors in #RRGGBB format.CardsYour adventure starts with youChoose your characterChoose your character to begin1. Choose a class and an appearance2. Give your adventure its colorsEvery class can explore every track. This is a visual choice: it changes neither XP nor difficulty. Outfits and equipment are fixed. Your character does not need to resemble you.CompletedA colossal dark-scaled dragon with biomechanical wings, AI sensors and laser emitters above a citadel in the clouds.Defeat the dragons of ignorance and problems.Investigate a question, test an idea and solve a challenge. Each discovery opens a new path.Customize characterExplore the world mapEye colorOpen eye color pickerFaceFace 1 · European inspirationFace 2 · Asian inspirationFace 3 · African inspirationHair colorChoose hair colorUse the picker or type # followed by six characters from 0–9 or A–F. Example: #AF795B. Imaginary colors are welcome too!In progressOne editor, two styles to explore. Choose your character, customize and save when ready.Customize your characterChildren's adventureCloseChoose a children's adventure characterEnlarge portraitLittle explorerYoung explorerBrown-skinned girl with a long braid and orange backpack, holding a notebook and magnifying glass beside a geometric leaf.Magnifying glass in hand, questions in a notebook. The world has clues waiting for you.Does one leaf look like another? The explorer observes, sketches and compares before deciding. Every good question opens a new path.Observe · ask · discoverEast Asian boy with black hair, an orange backpack, a magnifying glass and an open notebook in a futuristic garden.Magnifying glass in hand, questions in a notebook. The world has clues waiting for you.He found an unusual seed in the garden. Before deciding what it is, he observes its shape, sketches it and compares it with others. A good question can open up a great adventure.Observe · ask · discoverFeminineChoose a face and customize skin, eyes and hair. Original colors are always available.Little guardianYoung guardianBlack girl with short coiled hair and an orange scarf, holding a small glowing bridge model.Courage also means asking for help, welcoming someone and finding a solution together.A bridge should work for the people crossing it. The guardian listens to the group, tests paths and helps everyone take part in the discovery.Care · collaborate · connectBrown-skinned child with wavy hair, a hearing aid and a green jacket, offering a hand and holding a small glowing bridge.Courage also means asking for help, welcoming someone and finding a solution together.The crew wants to cross a stream. He invites everyone to draw a bridge and tests a small model with his friends. Each person contributes in their own way. Together, they find a safe path.Care · collaborate · connectChoose a character, try its appearances and colors, and save your choice.Little inventorYoung inventorBoy with curly auburn hair and glasses, using a wheelchair and holding a robot crab on his lap.An idea, a few parts and lots of curiosity. Every attempt reveals something new!A wheel and a claw can respond to commands. Our inventor tests one change at a time and explains his discoveries so everyone can build together.Imagine · build · tryBlack girl with curly hair, safety goggles on her forehead and a light jacket, holding an orange and green robot crab.An idea, a few parts and lots of curiosity. Every attempt reveals something new!She built a robot crab to explore the garden. When it heads the wrong way, they observe, change one part and try again. Learning also means discovering what can still be improved.Imagine · build · tryMasculineYour character joins you in your account and on the map. Appearance does not change your lessons or permissions.Original colorsPresentationChoose this characterMeet the characterLittle heroes, big discoveriesMagicMage · feminineMage · masculineImagine what does not exist yetAdventure mapTravel through gardens, workshops and cities of the future. Each stop is a real Rullst Academy track. Choose a region or use the filters to find your next mission.The path suggests an order, not an obligation. Setup tracks for different systems are alternatives. Planned regions do not have available lessons yet.A world to discover. One step at a time.To exploreMagic, science and courage meet to discover technology. Choose your character and join our robot crab across islands of knowledge — from your first ideas to new worlds.Every great adventure begins with a choice.Character previewYour character is saved to your account. It appears on your public profile only if you enable that option in profile settings.{done} of {total} lessons completedCity of MakersGardens of DiscoveryIdea WorkshopsStellar HorizonsCitadel of KnowledgeRegions of knowledgeDiscard changesChanges discarded. Your saved character was preserved.This account is restricted. Changes are unavailable.Save my characterCharacter saved to your account. The adventure continues!Saving character…ScienceScientist · feminineScientist · masculineTurn questions into discoveriesTry the options. Sign in to save your character.Skin colorOpen skin color pickerLittle Inventors: child characters. Aura Masters: teen and adult characters. Explore the styles and save your favorite.Character stylesSwitch appearanceUse the arrow to switch between feminine and masculine, and the Face menu to explore each class's portraits. You can change your hero and colors whenever you like.Aura MastersLittle InventorsPreview updated. Save to keep it in your account.Track presentationChecking your account…WarriorWarrior · feminineWarrior · masculineMeet challenges with creativityHere, curiosity becomes discovery and every attempt helps you grow. Our robot crab has prepared the path. Choose who will accompany your journey, at your pace and in your colors.Rullst universe · Aurora expeditionYour journey companion
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Rullst Academy