Learning Design: Sources and Limits

The lessons use contrasts, worked examples and short explanations. These sources informed those choices.

Source	Finding or recommendation	Use here
Schwartz & Bransford, 1998	College psychology students benefited from comparing cases before an explanation.	Predict a difference, then read the discussion.
Chi and colleagues, 1994	Prompted self-explanations helped pupils learning the circulatory system.	Explain why an outcome follows.
Mayer & Chandler, 2001	Learner-controlled segments improved transfer in two narrated-animation experiments.	Let readers pause and choose depth.
Kalyuga and colleagues, 2003	Their review describes guidance becoming redundant as expertise grows.	Make technical detail optional.
IES practice guide, 2007	Connect concrete and abstract examples; combine useful graphics with words; revisit learning.	Use one recurring example, diagrams, code and later variations.
Liu and colleagues, 2024	The tested language models used long contexts unevenly across positions.	Give agents exact section IDs and selective retrieval.

The first two papers' methods and discussion were examined. Mayer/Chandler and Kalyuga were used through their author/publisher abstracts. The IES recommendations have differing evidence ratings.

These studies concern other learners, subjects, media and models. Applying them here is a design judgment; they do not prove this course effective or establish a fixed human attention span. Human review should identify the particular misunderstanding so the lesson can improve.

Your Reflection