title: A procedure for the development and measurement of rudimentary quantitative concepts in low functioning trainable students.
mesh_terms: D000293:Adolescent; D000328:Adult; D003153:Community Health Services; D003210:Concept Formation; D004495:Education of Persons with Intellectual Disabilities; D005794:Generalization, Response; D006801:Humans; D007858:Learning; D013663:Teaching