Close technical overlap · Research prototype
Blockplay.ai
What the sources document
The project documents a downloadable Windows prototype that recognises Cuisenaire rods and multilink cubes under a webcam, with spoken counts, colours, tones and animations.
Evidence boundary
This is developer documentation and a public demo, not an independent reliability test. Its examples ask users to remove their hands; they do not establish continuous interpretation of a child’s strategy.
Where it sits beside Unnumberium
A close reference for recognising mathematical manipulatives. Unnumberium’s intended focus extends to the sequence of mathematical actions and a spoken tutoring conversation.