Black and white picture cards / books – black and white infant visual stimulation0-3 months, children of the world is still black and whiteIn young children O to 6 months time, things often use black and white contrast, will stimulate children’s optic nerve,Enhance visual development, thus contributing to the development of the brain, if stimulated and teaching through effective,Children can develop the potential of infinite wisdom and laid the foundation! According to education experts point out that systematic visual guide training,To foster the child’s powers of observation, imagination, discerning, and logical thinking skills, in order to achieve the target left and right brain development,Establish a good basis for learningUsage: Every day the baby to see a black and white contrast, about 30 seconds each day, about ten times.