Pictorial Graphs and Data Representation

Grade 2 takes the concrete graphs of Grade 1 and formalizes them as pictorial graphs: each physical object becomes a drawn symbol on a grid. The grid structure ensures alignment and makes comparison accurate. One-to-one correspondence remains the core principle: each real item corresponds to exactly one picture. Students who can move between a concrete graph and its pictorial representation understand that a graph is not the data itself but a representation of it.