Learning by Teaching: Why Explaining a Concept to a Child Helps You Master It

By: Justin 3/13/2025

One of the best ways to truly understand a concept is to teach it to someone else—especially a child. The Feynman Technique, a well-known learning strategy, suggests that simplifying complex ideas into clear, easy-to-understand explanations helps you retain knowledge better. In this article, we’ll explore why teaching a child is an effective way to learn, how it strengthens your understanding, and how you can use this method to master difficult topics.

The Power of Teaching for Deep Learning

When you teach a concept to a child, you’re forced to simplify ideas, remove unnecessary jargon, and explain it in the most basic terms possible. This process enhances your learning in several ways:

  • It tests your understanding—if you struggle to explain something simply, you probably haven’t fully grasped it.
  • It identifies gaps in your knowledge—you’ll quickly realize which parts you don’t fully understand when you try to explain them.
  • It improves retention—teaching requires active recall and repetition, two key elements for memorization.
  • It builds confidence—the more you explain a concept, the more naturally it becomes a part of your thinking.

This technique is backed by science. Studies have shown that teaching a subject enhances comprehension and retention more than passive studying alone. The act of verbalizing ideas, answering questions, and simplifying concepts creates stronger neural connections in the brain, leading to deeper learning.

How to Use the "Teach a Child" Method for Learning

1. Choose a Concept You Want to Master

Pick a topic that you find challenging or want to reinforce. It could be a math formula, a scientific principle, a historical event, or a language rule.

2. Break It Down Into Simple Language

Imagine explaining it to a young child (6–10 years old) who has no prior knowledge of the topic. Use simple words, relatable examples, and everyday analogies to make the concept clear.

Example: Instead of saying "Multiplication is repeated addition", say "Multiplication is like counting groups of things. If you have 3 bags with 5 apples in each, that means 3 times 5 apples = 15 apples."

3. Use Analogies and Visual Aids

Children understand better when they can visualize a concept. Use drawings, real-life examples, or stories to make abstract ideas easier to grasp.

Example: To explain electric circuits, compare them to a water pipe: “Electricity flows like water in a pipe. If there’s a break, the water (electricity) stops flowing."

4. Identify and Fix Gaps in Your Understanding

If you struggle to explain something clearly, that’s a sign you need to review it more. Go back to your notes, re-learn the topic, and try again. The goal is to be able to explain it smoothly and confidently.

5. Repeat and Refine

The more you teach, the better you understand. Try explaining it in different ways, answer imaginary questions, and challenge yourself to make it even simpler and clearer.

Real-Life Applications of Learning by Teaching

Studying for Exams

Teaching difficult topics to a study buddy, a family member, or even an imaginary child can help reinforce what you’ve learned. This method is especially useful in math, science, and language learning.

Improving Public Speaking and Communication Skills

Being able to simplify and explain complex ideas is a valuable skill in any profession. It makes you a better speaker, writer, and problem-solver.

Retaining Knowledge for the Long Term

Unlike rote memorization, which fades over time, teaching ensures that you truly internalize knowledge, making it easier to recall later.

Conclusion

If you want to master a concept, teach it to a child. By simplifying, explaining, and using analogies, you reinforce your learning, identify weak points, and build a deeper understanding. This active learning strategy is one of the most powerful ways to retain and apply knowledge effectively.

Next time you study, try explaining what you’ve learned out loud to an imaginary child—or better yet, teach it to someone else! 🚀