The growth of a child's brain comes from the experience and exercise they receive. Sight, hearing, touch, taste, and smell stimulate brain cell connections (called synapses) and create trillions more. The more complex these connections are, the more “smart” your child will be. When you give your child early stimulation and a wide range of experiences, you can accelerate brain development.
Steps

Step 1. Interact with your child
Scientists have observed that babies with whom they do not play, or give them affection and love, slow down their brain growth. They also observed that babies who were not held, nor received care, did not grow, became depressed and eventually died. On the other hand, many studies show that hugging, interacting and playing with your children has a great effect on their intelligence development. The connection that forms between you and your child and your interaction with him are the foundation for his thinking skills.

Step 2. Talk to your child
Also, when your child talks, listen to him. This motivates their efforts to communicate and use language. You can read books to your child. Start reading even if your child doesn't understand the words. This gives them an advantage in developing language skills. Children who read in their infancy are more likely to develop a life interest in reading, do well in school, and be successful as adults. Reading books is one of the main activities that make children smart.

Step 3. Expose your child to things that help develop both sides of the brain
The left side handles reasoning, logic and language, while the right side handles creativity and art.

Step 4. Let your child play
When your child plays, it creates the foundation for their intellectual, social, physical, and emotional abilities. When your child plays with other children, he learns to combine ideas, impressions, and feelings with those of others.

Step 5. Encourage your child to exercise
Physical exercise not only makes your child strong, but it also makes him smart. Exercise increases blood flow to the brain and builds new brain cells. Exercise is good for mental alertness in adults, but it has a longer lasting effect on children.

Step 6. Make music part of your child's life
Studies have shown that listening to music boosts memory, attention, motivation, and learning. It also reduces stress that is destructive to your child's brain cells. Learning to play a musical instrument has effects on the brain's proportional thinking and space-time reasoning, which are the foundations of abstract mathematics. After learning to read music and play up to 10 notes at a time, it will be much easier for you to learn to play any instrument. But that they start in music young, regardless of the instrument, is the important thing.

Step 7. Let your child watch you do smart things
Children learn by imitating adult behavior (by following examples). If they see you busy reading books, writing, making music, or creative things they will imitate you, and they will get smarter in the process.

Step 8. Let your child play intelligence games for the computer
The best computer games teach your child about letters, math, music, phonetics, and other things. They also develop their hand-eye coordination that prepares them for the technology of tomorrow. The best way for your child to learn is by learning and having fun at the same time.

Step 9. Feed him properly
Giving him the right food is important to raising a smart child. A diet rich in protein (eggs, fish, meat, beans, peanuts, etc.) improves your attention, and your thinking. Carbohydrates give your brain the fuel it needs to think. The best are those that come from whole foods and fruit. Processed carbohydrates and sugar have negative effects on attention span, concentration ability, and activity level. Vitamins and minerals are also important.

Step 10. Take them on a field trip
Museums and tourist attractions are a good option. Once they are old enough, take them to educational but exciting places like the caverns of London. Taking them on budget trips is also a good option.
Advice
- Put a map in your child's room so that he has knowledge of the world.
- Make sure he has a balanced and healthy diet.
- Have your child read nonfiction books (obviously age appropriate).
Warnings
- If your child doesn't understand something, don't make him feel silly. Always motivate your child to learn, because as they get to higher grades, just being smart won't be as helpful. And this must be done in a way assertive in order to boost your self-esteem.
- do not force it to do things that you don't like.
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Do not demand "excellent" school performance under threat of punishment if "good". The get "excellent" It should always be a goal that they set themselves, never by parental demand.
Much less compare them with their siblings, cousins, friends or classmates.