If we cast our mind back and begin to contemplate over the major concepts which we studied in our primary classes, then our mind, undoubtedly, gets enshrouded with 'mathematical operations', 'decimals' and 'data handling'. To make our students from grade 1 learn the basic concept of 'ones and tens' by developing their understanding of two-digit numbers, we conducted a fun-filled activity with Dienes blocks. Divided into multiple groups, the students tried to represent the number given to them by showing ones and tens through cubes and rods. Through the activity, students themselves drew the conclusion that number of rods is to be taken as 'tens' and number of cubes as 'ones'. The activity roped in a lot of interest and stimulated responses which substantiated vividness in our students' conceptual understanding.