He whārite, he kauwhata, he momo hoahoa rānei e tohu ana i te hononga kei waenganui i ētahi taurangi e rua, e whakaatu ana rānei i tētahi pūāhua o te ao tūturu. Ko tā te tauira pāngarau he āwhina i te tangata ki te āta whakaaroaro i ngā āhuatanga e tino whai pānga ana ki tētahi rapanga.
An equation, a graph or diagram which shows the relationship between two variables, or which represents a real world situation. A mathematical model allows careful consideration of the important aspects of a particular problem.