Teaching-to-learn rewires knowledge at a deeper neural level

Teaching something immediately after learning it changes how the knowledge is wired in your brain. While experts haven't mapped the exact neural changes yet, something measurable happens that makes your brain work differently in teaching mode. Tiern — a word that combines teaching and learning — captures this process: teaching in order to learn at a higher level, then connecting your knowledge and skills into a more integrated system. When you teach, you're forced to identify gaps in your own understanding, sequence ideas for someone else's comprehension, and respond to questions you hadn't anticipated. All of that consolidates and upgrades your original learning in ways that passive review never achieves.