First of all, read to your children! Studies show that reading to your child can begin before the age of six months, as soon as they’re able to enjoy the images and pictures inside of their books. Children have varying attention spans and you should keep in mind not to push too far past these limits and not to force them to read, as children tend to dislike things they are forced to do when it’s not on their own determinism. You can read to your child or have them read you, or take turns.
First, make sure your child is well-rested and well-fed. A well-balanced diet, with nutritious meals at breakfast, lunch, and dinner, and healthy snacks after school, has been shown to improve academic performance in children. Kids also need to be well-rested in order to focus during the day.