Answer:
Seriation
Explanation:
Seriation -
In the field of archaeology ,
It is the method of relative dating , where the artifacts or tye objects are arranged according to their age , is referred to as the seriation .
Hence , from the given scenario of the question ,
The method used by Rodin is seriation , as he arranged the crayons according to the length or the usage of the crayons .
Thereby showcasing the method of seriation .
