Individual diffemnces are main bam.ers in the way of communication. No communication strategy can satisfy every leameristudent at the same time in the classroom situation. It has given birth to an idea of' developing remedial measures and to assess their effectiveness, among slow leamers. Teacher training at degree level (B.Ed.) has variety of students coming from different disciplines. Most of them, having no background of elementary statistics are supposed to understand central tendency (mean, median and mode) and its application in classroom situation. As a result, they fail to get even passed marks in the course content. Keeping this problem in mind, the investigators decided to develop self instructional material in Educational Statistics and assess its effect among B.Ed. students for enhancing the level of their knowledge in elementary statistics and change in attitude towards mathematics. Many a times students do visualize the theme of lecture delivered by their teachers. It is really very difficult for an average student to imagine different phrases of formula and significant meaning of various statistical terms. Proper visualization and memory skill are needed for proper comprehension. Hence, there is a need to develop some new strategy, which will be a channel behveen teachers and leamers of Educational Statistics for an easy flow of information and practical application in evaluation procedure.