A comparison of cognitive load associated with discovery learning and worked examples.

TLDR

Exploration practice follows discovery learning principles, while worked‑examples practice stems from cognitive load theory. The study compares exploration versus worked‑examples practice for learning a database program, hypothesizing that worked‑examples reduce working‑memory load and improve processing. The authors conducted an experiment comparing exploration and worked‑examples practice for learning a database program. Students with no prior database experience benefited more from worked‑examples than exploration, but for students with prior experience the practice type made no significant difference.

Abstract

This article reports experimental work comparing exploration and worked-examples practice in learning to use a database program. Exploration practice is based on discovery learning principles, whereas worked-examples practice arose from the development of cognitive load theory. Exploration practice was expected to place a considerable load on working memory, whereas a heavy use of worked examples was hypothesized to lead to more effective processing by reducing extraneous mental load. Students with no previous domain familiarity with databases were found to substantially benefit from worked examples in comparison to exploration. However, if students had previous familiarity with the database domain, the type of practice made no significant difference to their learning because the exploration students were able to draw on existing, well-developed domain schemas to guide their exploration.