Age-Related Changes in Knowledge and Reasoning

An individual’s learning benefits from a consistent, long-term increase in the accumulation of world knowledge.

Two Cognitive Functions:

Accumulated Knowledge and Reasoning Ability

  • Tend to be correlated: people who have a comparatively higher reasoning capacity are likely to acquire correspondingly more knowledge over their lifespan than their peers.

  • Trajectory of reasoning and knowledge acquisition are different across lifespan.

    • There are general trajectories of age-related changes in ability

    • Consistent trend: development of knowledge remains steady as reasoning capacity “drops off.”

    • Growth or decline can be expected to vary between individuals and within the same person over time.

Accumulation of World Knowledge

  • Makes it easier for older adults to:

  1. Retrieve vocabulary and facts about the world

  2. Acquire new information in domains related to their expertise

  • Facilitates new learning of information when the information is aligned with existing domain knowledge (ex: the individual’s chosen environments for education, work, and hobbies)

Reasoning Ability

  • Major determinant of learning throughout life

  • Through reasoning, people develop knowledge throughout their lifespan.

Implication for Secondary Teaching Practices

  • Consider regularly incorporating problem solving activities to strengthen lifelong reasoning skills. Students should work both individually and collaboratively.

    • Ex: short problem solving activity Warm-up

  • Create hands-on meaningful experiences in the classroom for students to directly learn new information from.

    • Ex: engage students in active learning environments

  • Foster curiosity and motivation and incorporate the novelty of choice. Learning is a long-term process, and students are generally more motivated when learning about a topic that interests them.

    • With teacher guidance, allow students to choose the topics of research, book reports, and other projects