CTET 2 Math and Science 10 Jan 2022 Paper

Ms. Sameena is introducing the concept of fractions. She has planned following three activities : 
I. Symbolically representing fractions on the black board. 
II. Representing different fractions with diagrams in various ways. 
III. Engaging students with concrete material to represent different fractions. 
Help her order these activities in the most appropriate sequence to build the concept well.