This study analyses the effect of Educomp Smartclass room teaching on Retention in Mathematics at elementary level. The study consists of 80 students of class VIII of Navyug Public School, Sonipat (Haryana). Achievement test containing 60 Questions was used to collect the data. Experimental group, consisting of 40 students was taught using Educomp Smartclass room and control Group of 40 students was taught using Conventional classroom. It was found that the mean retention scores of experimental and control groups’ in mathematics differ significantly. Educomp Smartclass teaching helps in enhancing the retention of students in mathematics in comparison to the Conventional classroom teaching. The mean retention in mathematics of male and female VIII Graders using Educomp Smartclass teaching does not differ significantly. Sex has nothing to do with the retention in mathematics among VIII Graders using Educomp Smartclass teaching. The mean retention in mathematics of male and female VIII Graders using Conventional Classroom teaching does not differ significantly. Sex has nothing to do with the retention in mathematics among VIII Graders using Conventional Classroom teaching.