# Kharty

> Kharty is an interactive visual learning platform that turns any labelled image into an interactive quiz — called a "Kharty" or diagram. Students study and play diagrams in multiple game modes (Quiz, Match, Learn, LIVE multiplayer). Teachers create Khartys, assign them to classes, and host real-time classroom games. Covers Geography, Anatomy, Science, Languages, and more. Available at kharty.com and as iOS/Android apps.

Kharty's design is grounded in learning science: retrieval practice, immediate feedback, and spaced repetition are the core mechanisms. The platform covers the full teacher–student workflow: content creation → assignment → live game → progress reporting.

## Core concepts

- **Kharty / Diagram**: A labelled image where each label is a "term". Students tap or click a cover to reveal the term underneath. The diagram is the fundamental study unit.
- **Terms**: Individual labels positioned on a diagram image, each with coordinates, text, and an optional definition.
- **Game modes**: Quiz (multiple-choice with timer), Match/Challenge (60-second speed-based global leaderboard), Learn (progressive hex-grid levels with letter grades A–F and mastery badges), LIVE (real-time classroom multiplayer with room code).
- **Auto-Detect Terms**: Google Vision OCR reads labels already printed on an uploaded image and creates a term + cover for each one automatically.
- **Classes**: Teachers import Google Classroom rosters, assign diagrams as homework or class material, and track student scores per assignment.

## Subjects covered

Geography (maps, countries, capitals, rivers, physical features, climate zones, coastal features), Anatomy (body systems — cardiovascular, respiratory, muscular, skeletal, digestive), Science (cell biology, solar system, earth layers), Languages (visual vocabulary for L2 acquisition), Street Maps / Local Geography, Engineering, and any subject representable with a labelled image.

## User roles

- **Students**: Study and play Khartys solo or in multiplayer. Create diagrams. Track progress.
- **Teachers**: Create and share Khartys, assign to classes, host LIVE games, view student analytics. Requires Teacher + or PRO plan.
- **Parents**: Play with children, monitor progress, create family content.
- **Guest**: Play any public Kharty without an account. Progress saved locally, synced on sign-in.

## Pricing

- **Free**: Explore and play all public Khartys. No creation.
- **Student +** — $1.99/month or $9.90/year: Creation and premium study features. 1-week free trial.
- **Teacher +** — $3.99/month or $29.90/year: Unlimited Kharty creation, basic classroom tools. 1-week free trial.
- **Teacher PRO** — $19.99/month or $149.90/year: Full classroom suite, Google Classroom import, LIVE game hosting, advanced analytics. 1-week free trial.

## Main pages

- [Home](https://www.kharty.com): Landing page. Live demo with European Countries, Solar System, and Respiratory System diagrams.
- [For Teachers](https://www.kharty.com/teachers): Present in class, assign homework, track student progress.
- [For Students](https://www.kharty.com/students): Study remotely, compete with friends, earn virtual rewards.
- [For Parents](https://www.kharty.com/parents): Play with children, follow up on learning, create shared content.
- [Blog](https://www.kharty.com/blog): 21 educational articles on geography education, gamification, digital tools, and learning science.
- [Pricing](https://www.kharty.com/subscribe): Teacher + , Teacher PRO, and Student + plans.
- [Changelog](https://www.kharty.com/changelog): Full release history for web and mobile apps.
- [Search](https://www.kharty.com/search): Discover public Khartys by subject, language, or keyword.
- [Create a Kharty](https://www.kharty.com/create-diagram): Web-based diagram creator (Teacher + / PRO). Three-step flow: upload image → place terms → publish.
- [Sign up](https://www.kharty.com/auth/signup): Create a new account.
- [Onboarding](https://www.kharty.com/onboarding): New user onboarding with personalised diagram recommendations.
- [Privacy Policy](https://www.kharty.com/privacy): Privacy policy.
- [Terms of Service](https://www.kharty.com/tos): Terms of service.

## Diagrams catalogue

Kharty hosts over 12,000 public diagrams created by teachers and students worldwide. URL pattern: `https://www.kharty.com/diagram/[ID]` to study, `https://www.kharty.com/play/[ID]` to play directly.

- [Full diagrams sitemap](https://www.kharty.com/sitemaps/diagrams.xml): All public diagram URLs (12,000+), updated weekly.
- [Search diagrams](https://www.kharty.com/search): Browse by subject, language, or keyword. Categories: Geography, Anatomy, Science, Languages, Street Maps, Engineering, Others.
- [Full content index with diagram context](https://www.kharty.com/llms-full.txt): Extended version of this file with full blog post text and diagram catalogue context.

## Featured diagrams

- [European Countries](https://www.kharty.com/play/46oGhIC4GV): 48 European countries. Featured live demo on the landing page.
- [Solar System](https://www.kharty.com/play/J9nFw5fQvd): 9 planets of the solar system.
- [Respiratory System](https://www.kharty.com/play/6eqOMrKdr9): 11 organs of the respiratory system.
- [Ríos, cabos y golfos de España](https://www.kharty.com/es/diagram/HCxlzOBSiS): Rivers, capes and gulfs of Spain — Ebro, Tagus, Guadalquivir, Duero, Minho, Cabo Trafalgar, Cabo Finisterre, Gulf of Cádiz. Student-created, featured in the blog.
- [Historia de los barrios de Almería](https://www.kharty.com/es/diagram/aJ0i9Cndts): History of Almería's neighbourhoods — Medina Almariyya, La Chanca, Barrio Alto, El Zapillo, Cabo de Gata.

## Blog — Guides

- [How to Create a Kharty with AI: Step-by-Step Guide](https://www.kharty.com/blog/como-crear-kharty-con-ia): Walkthrough of Create with AI with real screenshots. Describe a topic ("What do you want to study?" + optional details + language), review and edit the AI-proposed terms, Kharty draws the image and places every term (planning, drawing, placing, verifying), redraw with feedback, then review and publish. Includes tips on topics that work (pointable parts, places, countries) and what AI won't draw (real people, brands). Monthly AI limit; Kharty+ and PRO raise it.
- [How to Create a New Kharty: Step-by-Step Guide for Teachers](https://www.kharty.com/blog/como-crear-kharty): Complete walkthrough, with screenshots, for creating and publishing an interactive diagram from your own image. Covers choosing Create Manually vs Create with AI, the three-step web flow, Auto-Detect Terms (Google Vision OCR), gallery visibility, and publishing. Free accounts can create up to 3 Khartys; Kharty+ and PRO have no limit.

## Blog — Geography education

- [How Interactive Maps Are Transforming the Geography Classroom](https://www.kharty.com/blog/interactive-maps-geography-class): Why interactive digital maps replace static atlases. Spatial reasoning, context-over-rote-learning, and natural classroom collaboration. Practical starting points for teachers with no specialist lab.
- [5 Reasons Gamification Improves Geography Learning](https://www.kharty.com/blog/five-reasons-gamification-geography): Research-backed reasons game mechanics improve geography outcomes: active challenge, immediate feedback, competition and collaboration, concrete abstraction, and adaptive difficulty (flow state).
- [Google Earth in the Classroom: A Practical Guide for Teachers](https://www.kharty.com/blog/google-earth-classroom-guide): Five lesson ideas using Google Earth — geomorphology detective, before/after environmental change, virtual field trip, human geography inquiry, urban planning simulation.
- [Rivers, Capes and Gulfs of Spain: Why They Still Matter in the Classroom](https://www.kharty.com/blog/rios-cabos-golfos-espana): Spain's five major rivers and coastal features as teaching anchors for history, trade routes, and climate. Includes link to a student-created Kharty diagram.
- [Spatial Thinking: The 21st-Century Skill Geography Builds](https://www.kharty.com/blog/spatial-thinking-skill): Spatial thinking as a trainable, transferable skill. References Wai/Lubinski/Benbow (2009) and Uttal et al. (2013). Transfer effects to maths geometry and science diagram reading.
- [How to Prepare a Geography Class with Online Tools (Step by Step)](https://www.kharty.com/blog/prepare-geography-class-online): Six-step workflow: spatial objective → curiosity hook → active spatial task → consolidation quiz → digital homework → post-lesson metrics.
- [From Paper Map to Interactive Map: A History of Cartographic Education](https://www.kharty.com/blog/paper-map-to-interactive-map): History of maps in education from Eratosthenes through the Renaissance atlas, the 19th-century wall map, Google Earth (2005), and today's game-based interactive cartography.
- [The Best Digital Tools to Teach Geography in Primary School](https://www.kharty.com/blog/best-digital-tools-primary-geography): Five tool categories — interactive mapping, VR/360° video, quiz games, collaborative mapping, data visualisation. Weekly rotation strategy.
- [The 10 Most Used Maps in Secondary Education (And How to Teach Them)](https://www.kharty.com/blog/ten-maps-secondary-education): Active teaching strategies for political, physical, climate zone, population density, tectonic plates, biome, GDP/development, migration, land use, and climate change impact maps.
- [How to Assess Geography Knowledge in a Dynamic and Motivating Way](https://www.kharty.com/blog/evaluate-geography-dynamically): Formative strategies — spatial exit tickets, concept mapping, peer quizzing, gallery walks. Evidence base for gamified assessment (Computers & Education 2020).
- [Virtual Reality in Geography: Visiting the World Without Leaving the Classroom](https://www.kharty.com/blog/virtual-reality-geography): Embodied cognition and Stanford VR Lab research. Tools: Google Expeditions to ClassVR. Layered approach: VR for presence → maps for spatial reasoning → quizzes for consolidation.
- [Geography and Global Citizenship: Teaching the World with Technology](https://www.kharty.com/blog/geography-global-citizenship): Geography as foundation of global literacy. UNESCO GCED model. Strategies: current events, multiple scales, structured controversy, technology as thinking tool.

## Blog — History and local geography

- [The History of Almería's Neighbourhoods: How to Learn It the Visual Way](https://www.kharty.com/blog/historia-barrios-almeria): History of Almería's districts — Moorish Medina Almariyya, La Chanca, Barrio Alto, 20th-century expansion zones. Local history as entry point to industrialisation and Al-Andalus. Links to a Kharty diagram for study.

## Blog — Learning science

- [What Science Says About Learning with Digital Games](https://www.kharty.com/blog/science-digital-games-learning): Cognitive science of effective game design — clear goals, immediate feedback, graduated challenge (ZPD), intrinsic rewards. Retrieval practice meta-analysis (Rowland 2013). Neuroscience of play. Caveats on entertainment-over-learning alignment.
- [Why Students Learn More When They Play: Immediate Feedback and Memory](https://www.kharty.com/blog/why-students-learn-playing-games): The forgetting curve. Hattie's feedback meta-analysis. Roediger & Karpicke (2006) retrieval practice study. Error prediction signal (dopaminergic). Csikszentmihalyi flow state. Spaced repetition vs massed practice.
- [Kharty and the New Way to Learn: Geography, Anatomy and More with Quizzes](https://www.kharty.com/blog/kharty-new-way-learning): How Kharty applies retrieval practice, immediate feedback, and spaced repetition. Spatial interaction with map/diagram interfaces, adaptive algorithm, leaderboards. Covers Geography and Anatomy as subjects.
- [Learning Anatomy with Interactive Diagrams: Beyond Memorisation](https://www.kharty.com/blog/anatomy-interactive-diagrams): Breaking the label-and-memorise cycle. Visible connections, multiple representations, embedded self-testing. Systems thinking as the ultimate anatomy goal. Practical strategies for teachers.

## Blog — Digital education

- [Ten Tips for Parents in the Digital Age](https://www.kharty.com/blog/ten-tips-parents-digital-age): Guidance for parents — screen time limits, family gaming, tech-free zones, choosing educational apps, digital footprint awareness.
- [Digital Natives: 16 Tips for Remote Learning](https://www.kharty.com/blog/digital-natives): 16 actionable strategies for students studying remotely — scheduling, goal-setting, peer contact, note-taking, healthy habits, motivation.
- [5 Tips Teachers Should Know About Digital Education](https://www.kharty.com/blog/five-tips-teachers-digital-education): Five skills for teachers going digital — information literacy, knowledge sharing, adaptability, content creation, technical problem-solving.

## Optional

- [Changelog v2.5.0 web (2026-04-28)](https://www.kharty.com/changelog): Create and edit Khartys on the web — drag-and-drop three-step flow, Auto-Detect Terms (Google Vision OCR), full edit of existing Khartys, keyboard shortcuts.
- [Changelog v2.4.0 web (2026-04-26)](https://www.kharty.com/changelog): Full game experience in browser — Quiz, Match/Challenge, Learn mode (hex grid, A–F grades, badges), Google TTS dictation, guest progress sync.
- [Changelog v2.12.0 app (2025-11-15)](https://www.kharty.com/changelog): Guest mode — play without an account, sync progress on sign-in.
- [Changelog v2.11.0 app (2025-09-01)](https://www.kharty.com/changelog): Clever SSO — single sign-on for students and teachers in Clever school districts.
- [Changelog v2.9.0 app (2025-03-20)](https://www.kharty.com/changelog): Classroom features — Google Classroom roster import, assignment creation, per-assignment progress tracking.
- [Changelog v2.7.0 app (2024-09-10)](https://www.kharty.com/changelog): LIVE classroom game — real-time multiplayer with room code, projected leaderboard.
- [Changelog v2.5.0 app (2024-03-15)](https://www.kharty.com/changelog): Folder organisation — create, manage, and share folders of diagrams.