# 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 New Kharty: Step-by-Step Guide for Teachers](https://www.kharty.com/blog/como-crear-kharty): Complete walkthrough for teachers creating and publishing an interactive diagram. Covers the three-step web flow, Auto-Detect Terms (Google Vision OCR), gallery visibility, and publishing. Requires Teacher + or PRO account.

## 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.