The study seeks to investigate the effect of a good knowledge of mathematical concept of area on the quantification and estimation of tiles in a building construction. To achieve the purpose of this study, one null hypothesis was formulated. An experimental design was adopted for this study. A Sample of ten (10) tillers who attained primary education was collected from a building construction site. This was divided into two groups of five (5) tillers each, the experimental group tillers taught with mathematics concept of area) and the control group (tillers taught area without mathematics concept of area). The instrument for data collection was workers ability on quantification and estimation test (WAQET), with reliability index of 0.87. The hypothesis was tested using the independent t-test analysis at p>O.O5 level of sigi4flcance, the result showed a mean score of (10. 09) of the experimental group which was higher than the mean score of (8.02) for the control group. The analysis reveals that tillers who had a good knowledge of mathematical concept of area were better in quantification and estimation of tiles.
Keywords: Area, Construction, Estimation, Mathematics, Quantification