From the functions that the hemispheres of the brain does,Do you think these functions or tasks (writing , reading arithmetic reasoning) are further segmented into different parts of the left hemisphere?
Republished recently upon invitation with more references added by the editors here:
Michaud, André (2020) Advancement on the Mechanics of Conceptual Thinking. In: Dr. Sachin Kumar Jain & Dr. Alina Georgeta Mag, Editors. New Horizons in Education and Social Studies Vol. 6,, Chapter 4. West Bengal, India: Book Publisher International. 2020