Learning by Refraction offers a fresh take on Ignatian pedagogy, curating what's most helpful from the latest education research and consolidating what has been

Retinoscopy is an eye exam that determines the refractive error of the eye (long sighted, short sighted, astigmatism). A refraction test indicates the strength

Learn about the revolutionary new technology of negative-refractionmetamaterials Negative-Refraction Metamaterials: Fundamental Principles andApplications intro

Explains how light waves behave by bouncing, bending, and being absorbed by objects.

Praise for How Learning Works "How Learning Works is the perfect title for this excellent book. Drawing upon new research in psychology, education, and cognitiv