How Adolescents Learn

The brain changes here are different from those in early childhood, but no less important. A teacher of middle school students or a parent of a teenager should know what is happening biologically.

Old view vs new view

For decades, the dominant view was that brain development largely ended by age 8. After that, the brain just grew bigger but did not develop new capabilities.

The “second decade of life” (ages 10 to 20) sees significant changes. Hormones shift. Connections form and reform. New capacities appear. Some old capacities decline.

A teacher who treats a 12-year-old as a small adult misses the biology. A teacher who treats a 12-year-old as a still-developing learner can plan accordingly.

Fact 1: Brain circuits and multitasking

The maturing adolescent brain grows new circuits. Like a computer’s wiring, these circuits allow the brain to perform several tasks simultaneously, with greater efficiency than before.

This is the biological basis of multitasking. A young child cannot multitask well. A middle school student starts to. A high school student is often quite good at it.

Examples in the classroom:

1. A 6-year-old can do one thing at a time. Reading or listening. Writing or talking. Not both.
2. A 12-year-old can read while listening to music. Take notes while watching a teacher.
3. A 16-year-old can run a complex group project while keeping track of several deadlines.

This emerging multitasking ability changes what teachers can ask students to do. Younger children need single-task activities. Adolescents can handle activities with multiple components running together.

This does not mean adolescents always multitask well. It means they are capable. The skill needs to be developed, used, and refined. A teacher who builds multi-component activities helps adolescents practice this skill.

Fact 2: Dopamine and attention

Dopamine is a brain chemical important to the prefrontal cortex (PFC). It is critical for focusing attention, especially when choosing between competing options. Dopamine grows dramatically during adolescence.

This is why teenagers often have longer attention spans than younger children. Teachers often comment that a child who could not sit still in primary school suddenly can in middle school. Their attention has improved. The reason is biological. Dopamine has grown. The brain can sustain focus.

But dopamine also brings distraction risk. The brain seeking dopamine sometimes seeks novel stimulation. This is partly why teenagers are vulnerable to social media addiction, video games, and other reward-seeking behaviors. The same chemical that allows focus also drives reward-seeking.

A teacher who knows this can design lessons that capture the dopamine system. Variety, novelty, achievable challenges, and small rewards (verbal praise, points, recognition) all help. Long, monotonous lectures fight against the dopamine system.

Fact 3: Connections form and prune

A 100 trillion connections in a single human brain. More than the entire internet.

But not all connections persist. The brain produces a large number of connections just before puberty. Then the brain prunes them. Connections that are used grow stronger. Connections that are not used wither away.

This is the “use it or lose it” principle of adolescent brain development. The teen who practices a skill keeps the connections supporting that skill. The teen who does not practice loses them.

What this means for teaching

Parents who do their children’s homework block this development. The connections needed to solve those problems form and then are pruned because the child is not using them.

A child who never solves problems on their own loses the brain capacity for problem solving. A child who solves their own problems builds and keeps that capacity. The pattern is biological, not just behavioral.

This is not an argument for poverty. It is an observation about what experience does. Children with comfortable lives may have weak problem-solving skills if their lives present few problems. Children with hard lives may develop strong problem-solving skills because their lives demand them.

A teacher who designs problem-rich classrooms helps all students build these connections, regardless of their home situation.

Fact 4: Positive experiences build complex brains

A complex brain has many connections. It can handle many tasks. It can shift between contexts. It can solve novel problems.

A simple brain has fewer connections. It is rigid. It works well only in familiar contexts.

A teenager exposed to varied, positive experiences (challenging problems, new ideas, art, music, social interaction) builds complex wiring. A teenager kept in a narrow environment with few experiences builds simple wiring.

The implication for teachers: variety matters. Multiple subjects. Multiple activities. Multiple kinds of thinking. Multiple kinds of experience. Each one adds to the brain’s complexity.

A school that gives students rich, varied experiences produces complex thinkers. A school that drills the same subjects in the same way produces narrower thinkers.

Fact 5: Mood swings are biological

There is a familiar phenomenon: 10-to-15-year-olds are often moody, disorganized, and worried. They can be very energetic one moment and withdrawn the next. They can fight over small things. They can refuse to do work they were doing fine yesterday.

The cause is biological. Hormones are shifting. The brain is rewiring. Mood-regulation circuits are still developing. Adolescents do not always have control over their emotional states.

This does not excuse bad behavior. It does explain it. A teacher who treats a moody adolescent as a deliberately rude one will respond with punishment. A teacher who knows the biology will respond with patience and structure.

The energy level swings too. Adolescents can be extremely energetic. They want long sports periods. They want to play. They can keep going long after younger children would tire. Then suddenly they crash, become tired, and need rest.

A teacher who plans schedules with this energy variability in mind serves adolescents better. Active periods alternated with quiet periods. Discussion periods alternated with reflective writing periods. Variety in pace as well as in activity.

What to teach adolescents

Given these brain facts, what should teachers prioritize?

1. Problem-solving. Adolescents are biologically primed to develop this skill. Plenty of practice is essential. Real problems, not just textbook exercises.

2. Reflection. The ability to assess one’s own performance, identify weaknesses, and plan improvements. This is metacognition. Adolescents can do it. Teachers should ask them to reflect regularly.

3. Teamwork. Adolescents are social. Their brains are wired for cooperation. Group work, peer learning, collaborative projects all develop teamwork skills.

4. Conceptual learning. Adolescents can grasp abstract concepts. They can generalize from examples. They can apply principles to new situations. Teachers should not waste this capacity on rote memorization.

Behind all four: real experience. Observation alone is not enough.

Flashcard

What four skills should teachers prioritize for 10-to-15-year-olds?

Tap to reveal

Answer

Problem-solving, reflection, teamwork, conceptual learning

1. Problem-solving: real problems that the student must work through, building neural connections.

2. Reflection: thinking about their own performance and how to improve.

3. Teamwork: cooperation in groups, building social and communication skills.

4. Conceptual learning: grasping abstract concepts and applying them in new situations, well beyond memorizing facts.

These are life skills. They serve students for decades after school ends.

Implications for parents

1. Do not do their work for them. Pruning removes unused connections. Children who do not work do not grow.
2. Let them solve problems. Even when it is hard. Even when they fail. Failing is part of the process.
3. Provide rich experience. Books, conversations, places, ideas, art. Variety builds complex brains.
4. Be patient with mood swings. The biology is real. The teenager is not always in control.
5. Trust their growing capacity. Adolescents are not small children. They can handle more responsibility, more autonomy, more complex tasks.

A parent who applies these principles raises a stronger thinker. A parent who over-protects raises a brain with simpler wiring.

A note on subject specialists in primary school

’s small survey found that many teachers think subject specialists should teach primary school.

A subject specialist focuses on one subject. They are not trained in integrated teaching. They give content but do not connect across subjects.

For elementary school (up to grade 8), an integrated teacher who can blend two or three subjects works better than several subject specialists. Children at this age learn best when subjects connect, not when they are isolated.

The closing point: an elementary teacher who can integrate serves their young students better than a specialist who cannot.