Finally, a full version the paper on Synaesthesia and Learning.

It deals with quite a few issues, but the main thrust of the paper (based on Ramachandran's work, and on case studies of ours on Montessori and MEDIATE) is that the origin on abstraction is deeply embedded in cross-sensory perception, and the path to abstraction in learning can be mapped out - and operationalised - from sensory exploration, given well designed and constructed interactive learning environments.

As it happens, it both explains and endorses the work of Montessori, which for me has been a long and fascinating journey, since my first involvement with Montessori education in the mid-1980's