C2 / GEOMETRY / EVALUATED AGES 9–12
Make mistakes a starting point.
Fault-specific guidance helps explain an invalid net. Once a solid is ready, virtual slicing makes its internal structure and fractions visible.
2D Net Correction and Virtual Slicing
Illustrates the solid only. Research slicing reveals prepared result meshes after tracing.
Illustrative playback. This visual explains the concept, rather than running the research application.
THE LEARNING PROBLEM
What this component
helps learners explore.
A binary correct-or-incorrect message does little to explain a spatial error. Learners also need to inspect how a solid divides into parts.
Technical approach
Correction highlights a detected location or relation and presents a short explanation and visual support. Virtual Slicing uses prepared result meshes revealed after a successful trace, rather than arbitrary real-time mesh cutting.
FROM INPUT TO REINFORCEMENT
The learning workflow.
- 01
Receive an invalid state from C1
- 02
Highlight the faulty relation and show corrective guidance
- 03
Retry validation; inspect a valid solid
- 04
Select a direction and fraction, then trace the slicing guideline
- 05
Inspect the separated prepared result meshes
SUPPORTED SCOPE
Purposeful boundaries.
- Cube, Cuboid, Triangular Prism, Tetrahedron, Cylinder
- Vertical, Horizontal, Angled
- Fractions: 1/2, 1/3, 1/4, 3/4
Pilot evaluation
20 of 25 slicing sessions succeeded. Direction outcomes were 5/5 vertical, 11/14 horizontal and 4/6 angled. Fraction outcomes were 4/5 for 1/2, 3/4 for 1/3, 6/7 for 1/4 and 7/9 for 3/4.
What the findings do not establish
The quantitative log measures slicing. It does not independently measure correction accuracy. Direction and fraction subgroup counts are unequal and descriptive.
Source: Manuscript pp. 4–5. Read the manuscript ↗
Download individual proposal ↓LET’S EXPLORE WHAT’S NEXT
Bring a new dimension
to learning.
Start a conversation about a demonstration, school pilot or research partnership.