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The main purpose of the manual "Brain Simulator. Drawing with both hands" is to help the child to develop the left and right hemispheres of the brain equally, because such development is the key to harmonious development and successful learning. The easiest and most fun way to do this is to draw with both hands at the same time.

Simultaneous action with both hands not only harmonises the work of the left and right hemispheres of the brain, but also improves visual-motor coordination, trains memory, attention, fine and gross motor skills, reduces fatigue, facilitates learning to read and write, develops imagination and fantasy.