• Dr.K.Madhavi
• Dr. Sudhakar Venukapalli

The purpose of the study was to determine the level of concrete operational logical and Mathematical abilities namely conservation measurement and compensation of High School students of visually impaired children. This empirical study is essentially an exploratory clinical research. The approach of this investigation is quantitative and is supported by simple description. The researcher involved students individually and also in group to collect data by clinical method. Two different independent normally distributed populations with respect to the variables are selected for this study. To understand and examine the above hypotheses, visually impaired children and sighted children of class IX in Hyderabad are considered as the populations. The tools used to collect data are 1. The Test of logical Operations in mathematics (TLO – A Paper Pencil Test). Designed and constructed on the basis of Piaget’s seven logical operations.2. The modified Piagetian Logical-mathematical Test Battery. The researcher has adopted quantitative research techniques for the purpose of data representation, classification and interpretation. Inferential statistical technique ,chi-square and correlation are adopted for the purpose of testing the hypothesis. Interpretations are drawn on this basis of parametric and non-parametric statistical techniques

Visually challenged children, concrete concepts, conversation, measurement and compensation

"Development concrete concepts of logical-Mathematical in visually challenged children", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.186-193, June 2019, Available :http://www.jetir.org/papers/JETIR1907026.pdf

"Development concrete concepts of logical-Mathematical in visually challenged children", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp186-193, June 2019, Available at : http://www.jetir.org/papers/JETIR1907026.pdf