Children learn faster and retain more when their brains are supported on multiple fronts: how they study, how they move, what they eat, and how they handle frustration. The good news is that most of the highest-impact changes are simple, free, and can start today. Here’s what the evidence says actually works.
Build Executive Function First
Executive function is the set of mental skills that lets a child pay attention, hold information in mind, and switch between tasks. Researchers break it into three core components: inhibitory control (resisting impulses and distractions), working memory (holding and manipulating information), and cognitive flexibility (shifting thinking when the situation changes). These skills predict academic success more reliably than IQ in many studies, and they’re highly trainable in childhood.
Martial arts training is one of the best-studied ways to build all three at once. A study of children ages 5 to 11 found that those assigned to tae kwon do improved more than a standard gym class group in working memory, cognitive inhibition, perseverance, and emotional regulation. The combination of memorizing sequences, controlling the body precisely, and following rules under pressure seems to engage exactly the circuits kids need for learning.
School curricula that emphasize self-directed activity, like Montessori and the Vygotsky-inspired Tools of the Mind program, have also been shown to improve executive function in children as young as four. What these approaches share is that they ask children to plan their own work, regulate their behavior during activities, and reflect on what they’ve done. You can replicate this at home by giving your child structured choices (“Would you like to practice spelling first or math first?”), then asking them to stick with their plan before switching.
Teach Your Child to Think About Thinking
Metacognition, the ability to observe and adjust your own thought process, is one of the strongest predictors of whether a child can learn independently. Children aren’t born knowing how to do this, but parents can build the habit with a few targeted questions.
Instead of asking “Do you understand?” (which almost always gets a yes), try open-ended prompts that force reflection. “Can you tell me more about why you think that?” works well when your child gives an answer to a homework problem. “How will you know when this drawing is finished?” teaches planning. After a frustrating moment, “Why do you think you got upset when that happened?” helps a child connect emotions to triggers, which is itself a learning skill. These aren’t interrogations. They’re brief, curious questions dropped into everyday moments that gradually teach a child to monitor their own brain.
Research on South Korean sixth graders found that students who regulated their effort based on task difficulty scored significantly higher in both math and literacy. The children who performed best weren’t necessarily the smartest. They were the ones who noticed when something was hard and chose to push through rather than give up or zone out. That noticing is metacognition in action, and it’s a skill you can coach.
Use Active Recall Instead of Rereading
Most children study by rereading their notes or textbook. This feels productive but barely works. Active recall, the practice of pulling information from memory without looking at the answer, is dramatically more effective.
For kids under 12, the simplest version is flashcards. Write a question or prompt on one side and the answer on the other. Have your child go through the stack, set aside the ones they got right, and focus on the ones they missed. Then quiz again an hour later or the next day. This is spaced repetition: revisiting material at increasing intervals, which strengthens long-term memory far more than cramming.
Other methods that work well for younger learners:
- Turn notes into a practice test. After your child reviews a chapter, help them write five to ten questions on one sheet of paper and answers on another. They take their own test, check it, then retake it a day or two later.
- Teach a stuffed animal. Have your child explain what they learned to a toy, a sibling, or you. If they can’t explain it clearly, they know exactly where the gap is. Software developers call this “rubber ducking,” and it works just as well for a seven-year-old learning fractions.
- Write it out from memory. After reading a passage, close the book and have your child write down everything they remember. Then open the book and see what they missed. This single exercise can replace 30 minutes of passive rereading.
Praise Strategy, Not Smarts
How you respond to your child’s work shapes whether they see ability as fixed or developable. When you say “You’re so smart,” a child learns that intelligence is something you either have or don’t. When they hit a wall later, they interpret struggle as proof they aren’t smart enough.
Effort-focused praise sounds different. “I really like how you went back and analyzed your work when you got stuck and then moved forward” tells a child that persistence is the valuable part. “You used multiple different strategies to come to the answer” reinforces flexibility. When your child bombs a test, try: “Let’s use this as a chance to look at why certain problems were confusing and figure out which strategies to use next time.” This reframes failure as data rather than identity.
The shift feels small, but it changes a child’s internal narrative from “I can’t do this” to “I can’t do this yet.”
Get Them Moving
Physical activity doesn’t just burn energy. It physically changes the brain in ways that support learning. Exercise triggers the release of a protein called BDNF that strengthens the connections between brain cells responsible for memory and problem-solving. In children, this effect is measurable.
A 16-week taekwondo program in healthy children produced significant increases in BDNF levels along with measurable improvements in cognitive function. A separate 12-week motor training program for children with writing difficulties raised BDNF levels and simultaneously improved executive function, cutting the number of problem-solving errors nearly in half. The researchers found that BDNF levels alone explained over 50% of the improvement in certain types of cognitive errors.
You don’t need a structured martial arts program to get these benefits, though martial arts and complex motor activities appear especially effective because they challenge the brain and body simultaneously. Any regular aerobic activity, whether it’s swimming, cycling, running, or climbing at a playground, increases BDNF. The key is consistency: aim for daily physical activity rather than weekend bursts.
Feed the Brain What It Needs
Three micronutrients stand out for their direct impact on how well a child’s brain processes and stores information.
Iron is the most critical. Iron deficiency in early childhood can impair overall intelligence and cognitive development. The encouraging flip side: iron-deficient children who receive supplementation show a 14% increase in the speed at which they process information and an 8% improvement in accuracy. Good dietary sources include red meat, beans, fortified cereals, and spinach. Pairing iron-rich foods with vitamin C (like orange slices with a bean burrito) improves absorption.
Zinc deficiency during infancy and early childhood is linked to delays in motor development and problems with attention and short-term memory. Meat, shellfish, dairy, nuts, and seeds are reliable sources.
Omega-3 fatty acids, particularly the type found in fish, support working memory, processing speed, and vocabulary development. One study found that children under four who received omega-3 supplementation significantly improved their working memory compared to a control group. Other research found that healthy children who simply ate more fish increased their full-scale IQ scores and processing speed. Two servings of fatty fish per week (salmon, sardines, mackerel) is a practical target.
Manage Screens by Quality, Not Just Minutes
The American Academy of Pediatrics no longer recommends a specific number of screen time hours for school-age children. Their current guidance focuses on what children do on screens rather than a strict clock, because the evidence doesn’t support a universal “safe” number of hours.
The more useful questions to ask are whether screen use is crowding out sleep, physical activity, homework, or face-to-face interaction. Rules focused on balance, content, co-viewing, and conversation are associated with better outcomes than rules focused purely on time limits. In practice, this means watching a documentary together and discussing it is fundamentally different from two hours of passive scrolling, even though the screen time is identical. If your child is sleeping well, staying active, keeping up with schoolwork, and still socializing in person, their screen habits are probably fine. If any of those areas are slipping, screens are the first place to look.
Use the Brain’s Natural Windows
Children’s brains go through sensitive periods, windows when specific circuits are especially responsive to input. These windows are staggered throughout development: sensory skills like vision and hearing peak earliest, followed by language, then higher cognitive functions. Each window doesn’t slam shut, but learning within it is significantly easier than learning after it closes.
Language is the clearest example. Children exposed to a language from birth can attain full fluency in a way that becomes progressively harder with age. Despite this, second-language instruction is typically delayed until early adolescence in most school systems. If you want your child to be bilingual, earlier exposure matters enormously. Even informal exposure through conversation, media, or playdates in a second language takes advantage of this window.
More complex skills like reasoning and problem-solving reflect cumulative sensitive periods rather than a single window, meaning they build on earlier foundations. A child who develops strong language skills during the language-sensitive period has an easier time with reading comprehension and abstract thinking later. This is why investing in foundational skills early, even when they seem unrelated to academics, pays compounding returns as your child grows.