Learning Science · Learning across the lifespan
Development and accumulated experience
Consider development, previous experience and opportunity together when interpreting learning.
Use the examples to connect this lesson with the earlier topics. No specialist equipment is needed.
Back to the chapterAfter reading, you can
- Distinguish chronological age from relevant preparation.
- Identify how experience can help or hinder new learning.
Two beginners of different ages
A fourteen-year-old and a fifty-year-old begin learning a programming language. The older learner may know spreadsheet logic; the younger may have used visual coding tools. Their ages do not reveal which concepts each already understands. A useful first task checks variables, instructions and conditions rather than assigning a starting level from age alone.
Development and experience interact
Development includes changes over time in cognitive, social and physical capacities. Experience includes the knowledge, practices and expectations acquired through participation. Opportunities shape which experiences are available, while developing capacities influence how a person can use those opportunities. These processes cannot be reduced to one universal learning speed.
Prior knowledge can reduce demands by providing a useful structure. It can also interfere when an old rule is applied inappropriately. A spreadsheet user may understand formulas but expect every program to update like a spreadsheet. An instructor should connect the shared idea and make the difference explicit.
Use developmental patterns carefully
Research can describe average age-related patterns, but these do not determine an individual’s readiness or best support. A timed unfamiliar task samples one kind of performance. It may miss knowledge, judgement or skill developed through experience.
Assess the relevant starting point, make materials accessible and provide suitable practice and feedback. Where preparation is missing, offer an entry route rather than interpreting the gap as an age limit. Where experience is useful, connect it to the new target while testing what actually transfers. Learning remains possible throughout life, with varied trajectories and conditions.
Worked example
A common entry task
In sequential pseudocode, execute x = 2, then y = x + 3, then x = 7. What remains useful from spreadsheet experience, and where can it mislead?
- Use a shared entry trace so both learners face the same explicit rule: instructions execute once in order. Set x to two, then set y to x plus three, making y five.
- Now set x to seven. Ask whether y changes and why. Under the sequential rule it remains five; a live spreadsheet formula is a useful contrast, not the governing rule here.
- One learner may need the update distinction and another the notation. Explain the relevant gap and use a fresh trace to check the bridge; do not turn the result into a global age comparison.
The quantity relationship is familiar, but this sequential model sets y to five before x changes. A live spreadsheet formula may recalculate; distinguish that update rule instead of ranking learners by age.
A shared quantity idea with a different update rule
Try it yourself
Think through each question before opening the answer.
Why is age an incomplete guide to starting knowledge?
Show the answer and reasoning
People of the same age have different opportunities and experiences, and people of different ages can share relevant preparation.
Age does not reveal which tools or concepts a person has encountered. A shared entry task exposes relevant preparation and gaps more directly.
Can prior expertise interfere with learning?
Show the answer and reasoning
Yes. A useful old rule may be applied beyond its conditions. Teach the connection and the boundary instead of assuming either perfect transfer or no transfer.
An old relationship may be useful while its update convention differs. Teach the shared idea and the decisive boundary, then check a fresh trace.
What to carry forward
- Consider development, experience and opportunity together.
- Check relevant preparation in the task rather than inferring it from age.
References
Sources supporting the explanations and learning checks in this lesson.
National Academies Press, United States2 sources