C1Luthira Himsara
Geometry validation
A NEW DIMENSION IN PRIMARY EDUCATION
Small ideas.
Extraordinary
discoveries.
Create. Explore. Learn.
From a child’s geometric net to a solid in their world. From a movement in the air to a letter they know. Meet GeoLex AR.
LEARNING, TAKING SHAPE
ILLUSTRATION
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02
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Illustrative playback. This visual explains the concept, rather than running the research application.
Follow the movement
R26-IM-005 / Research project
WATCH OUR RESEARCH COME TO LIFE
Discover the full
GeoLex AR story.
Explore our research, the ideas behind it
and the learning experiences we created.
THE LEARNING CHALLENGE
Some things are easier
to understand when
you can explore them.
A flat net doesn’t immediately reveal a cube. A finished letter doesn’t show how it was formed.
GeoLex AR connects learner-generated input with targeted feedback and 3D or augmented-reality reinforcement. It helps make spatial relationships, movement and object-word connections inspectable.
Understand the research problem →TWO PATHWAYS. ONE INTERACTION APPROACH.
Built around the way
young learners explore.
Different ages. Different learning tasks.
Specialized processing for each component.
GEOMETRY / EVALUATED AGES 9–12Think in
Give every idea
Think in
another dimension.
Construct nets, understand geometric faults and inspect the parts inside a solid.
C1 · Validation C2 · Correction and slicing
LITERACY / EVALUATED AGES 6–8Give every idea
a word.
Explore camera-based letter trajectories and sketch-driven vocabulary activities.
C3 · Air-writing C4 · Vocabulary
THE FOUR COMPONENTS
Four ways to turn
curiosity into understanding.
C1 / Geometry
2D-to-3D Geometry Validation
Learners construct a geometric net. Shape-specific rules check its mathematical validity before a solid appears in 3D and AR.
Luthira HimsaraC2 / Geometry
2D Net Correction and Virtual Slicing
Fault-specific guidance helps explain an invalid net. Once a solid is ready, virtual slicing makes its internal structure and fractions visible.
Malitha De CostaC3 / Literacy
AI Air-Writing Trajectory Tracking
The mobile camera tracks a fingertip moving through free space. An ordered trajectory becomes the input to CNN-based letter recognition.
Thushad AbhilashC4 / Literacy
Sketch-Driven Multisensory Vocabulary Learning
A learner’s sketch becomes an object-word connection. Spelling and pronunciation-oriented activities unlock its corresponding AR representation.
Navoda WickramasingheHOW THE SUITE WORKS
The learner creates.
The experience responds.
A shared interaction architecture.
Four component-specific approaches.
- 01
Learner input
A net, a slicing action, an air-written trajectory or an object sketch.
- 02
Interpretation
Shape-specific rules or a specialized recognition pipeline.
- 03
Feedback
Correction, recognition or progression guidance that fits the task.
- 04
Reinforcement
Inspect a 3D solid or unlock an AR representation.
The four components do not use a single shared recognition model.
EARLY RESEARCH EVIDENCE
Explored with learners.
Reported with context.
The pilot involved 50 unique learners across two age groups. Each result measures a different task.
Read the findings and limitations →25/25
C1 validity agreement20 valid and 5 invalid evaluated cases
76%
C3 correct letter recognition19/25 trials · 17 uppercase targets sampled
+4
Marks in each pre/post meanDescriptive change on a ten-mark scale
INSIDE THE RESEARCH APPLICATION
A glimpse of the
learning experience.
Actual interface images from the supplied
research manuscript, page 5, Figure 5.
ANDROID RESEARCH APPLICATIONOne suite.
One suite.
Two learning pathways.
The Unity application connects component navigation, feedback, 3D assets and AR presentation. These manuscript screenshots retain the application’s original GeoAR naming.
GeoLex AR is the current public-facing identity.
Explore the workflows →
THE PEOPLE BEHIND GEOLEX AR
Four perspectives.
A shared curiosity.
C1C2Malitha De Costa
Group Leader · Correction & slicing
C3Thushad Abhilash
Air-writing trajectory tracking
C4Navoda Wickramasinghe
Multisensory vocabulary learning
LET’S EXPLORE WHAT’S NEXT
Bring a new dimension
to learning.
Start a conversation about a demonstration, school pilot or research partnership.