Black-and-white card is an early education tool specially designed for the baby's visual development characteristics three months ago. We just need to hold the card about 30cm away from the baby's eyes and see if the baby will look at it for a short time. If the baby has obvious gaze, you can also move the card appropriately to see if the baby has visual tracking.

At the same time, pay attention to the baby's state and use black and white cards when the baby is awake and in a good emotional state. Newborns can concentrate for a short time, about three to five minutes. If the baby is obviously crying or resisting, don't continue.

Extended data:

Color card:

After 4 months, the baby began to distinguish colors gradually, and it was time to show the baby the color card.

First, the visual excitation method

1, hold the card and give him color visual stimulation training at a distance of about 40 cm from the baby. 2. While displaying the card, explain the contents of the card to the baby to promote the development of brain potential. When the baby is older, ask him to point out some colors and graphics on the card, such as red circles, for parent-child interaction.

Second, the method of use

Hold the card 20 ~ 30 cm away from the baby, say the name of the picture loudly to attract the baby's attention, and then change the card after the baby sees the image clearly. Use 2 ~ 5 cards at a time, train 10 seconds, and train 10 times a day. Be sure to train when the baby's physical and mental state is very good, and stop immediately once the baby's state is not good.

References:

Baidu encyclopedia-black and white card

References:

Baidu encyclopedia-color card