1.
Sci Am
; 285(5): 78-85, 2001 Nov.
Article
in English
| MEDLINE
| ID: mdl-11681178
Subject(s)
Behavior , Education/methods , Teaching/methods , Costs and Cost Analysis , Education/economics , Educational Measurement , Humans , Learning , Minority Groups , Noise , Student Dropouts , Students , United States
2.