Nursery students of Presidium learnt the relationship between objects on the attribute of size to develop the skill of seriation. Seriation prepares students to see order in numbers and objects thereby helping them to understand that as the number increases, the quantity and size also increases. In this activity, students were provided with a collection of concrete objects and were asked to arrange them on the basis of size in the grid made on the floor. Students were indulged in the activity thereby enhancing their gross motor, observation, comparing, visualisation skills.