(d) Levels of Van Hiele model are :- Level 1 – visualization (students recognize shapes) Level 2 – Analysis (students begin to identify and learn to use properties but not establish relationship) Level 3 – Informal Deduction students able to recognize relationships between and among properties of shapes or classes of shapes Level 4 – Deduction students can go beyond just identifying characteristics of shapes Level 5 – Rigor this is highest level and at this student can work in different geometric systems