Riungu, Margaret Njiru Teaching factors affecting learning of mathematics to visually impaired Pre-school learners: a case study of St. Lucy school for the visually impaired, Imenti South district, Meru county, Kenya - Chuka Chuka University 2013 - 81 Leaves Illustrated Subjects--Topical Terms: Mathematics--study and teaching LC Class. No.: THE QA 135.5 / .R58 2013